Grex General Conference

Item 4: Grex System Problems - Fall 2015/Winter 2016

Entered by cfadm on Thu Dec 31 16:42:13 2015:

216 new of 223 responses total.


#8 of 223 by tod on Sat Feb 27 05:21:01 2016:

Damnit Chewie


#9 of 223 by walkman on Mon Feb 29 18:57:29 2016:

*RAAAARRRRR*


#10 of 223 by kentn on Tue Mar 1 01:16:05 2016:

Grex was inaccessible for at least a day or so (or so it seemed)
due to a UPS failure causing the server Grex exists on to reboot
and then die.  This lead to the dreaded "no route to host"
message when trying to connect.  The issue should be fixed now.

Thank you, Tony!


#11 of 223 by kentn on Sun Mar 20 23:20:43 2016:

Grex was up and down a couple times starting with last Friday and into
Sunday evening.  Both times it was the bug in the OpenBSD system that
caused it although it is not clear if anyone has found a way to make it
happen sooner.  The load average was over 150 on Saturday before I lost
my connection.  It was not clear what was causing that sort of load and
top showed a lot of 0% cpu processes.  

Thanks to Tony for coming to the rescue on these issues several
times this weekend!


#12 of 223 by kentn on Thu Mar 31 23:15:10 2016:

Grex went comatose again this afternoon/evening.  Thanks to Tony for
the reboot! 


#13 of 223 by walkman on Sat Apr 2 20:05:54 2016:

Is a reboot like a smelling salt?


#14 of 223 by tod on Wed Apr 6 08:16:20 2016:

It's like a smack to Otis the Drunk when Andy is having a bad hairday


#15 of 223 by kentn on Fri Apr 8 23:19:23 2016:

What happened was we lost our network connection for a while, so Grex
itself was still alive, but a reboot got it connected again after the
box that was handling the network was rebooted.  


#16 of 223 by glitch on Tue Apr 12 14:21:42 2016:

(not dead yet, just *very* busy!)

Can someone set up the reverse DNS for grex? Right now it's just the dynamic
address that SBC is handing out. Probably seems kinda nit picky, but it really
helps in e.g. IRC to see @grex.org (or @cyberspace.org, or whatever) when a
user connects.

I can set it up if staff doesn't have time and would like help.


#17 of 223 by gelinas on Tue Apr 12 22:12:48 2016:

I think we are going to have to wait for Tony to check in. Now that grex is
a virtual machine, reverse DNS may not make sense.


#18 of 223 by tod on Thu Apr 14 21:21:57 2016:

Reverse DNS would be a good idea.


#19 of 223 by kentn on Wed Jun 1 02:52:36 2016:

Okay, we had another network issue and OpenBSD decided to check out of
consciousness for a while.  Tony shocked it back to life again.  Thank
you, Tony!


#20 of 223 by tod on Tue Jun 7 22:19:16 2016:

Thanks Tony!


#21 of 223 by jovan on Thu Jun 23 20:47:14 2016:

I would like to thank whoever installed Maxima on this machine. I can't
install any math software on my work computer and grex has just saved the day!


#22 of 223 by kentn on Sun Jun 26 11:11:15 2016:

Thanks for letting us know you use it!  I think I installed that a while
back.  There are several such applications on Grex, including Octave,
Maxima, FreeMat, and R.  I'm glad it worked for you.

An incomplete list of installed softare on Grex is available at:

   http://grex.org/software.xhtml



#23 of 223 by sholmes on Tue Jul 5 08:18:49 2016:

Thanks for haskell as well !


#24 of 223 by tonster on Sun Jul 10 23:12:49 2016:

resp:16, resp:18:

Unfortunately, it's not possible to get reverse DNS for grex. :( I tried
to do it, but AT&T has a silly limitation where they will only give
reverse DNS for a single domain name. Since it's hosted here, and I have
my own stuff on my network, tonster.com trumps grex.org and
arbornet.org. :) Thus, no reverse DNS. At least, no reverse DNS that
makes any real sense.

In other news, I just finally managed to get the SSL certificate
replaced. No more warnings about how dangerous grex.org is, though I'm
still not convinced that's a good thing. :)


#25 of 223 by kentn on Wed Jul 13 02:04:11 2016:

Thanks for investigating all this, Tony. Accessing grex's web page
now goes through without a hitch, as does accessing the RT help desk
pages. 


#26 of 223 by duszek on Wed Aug 24 17:51:13 2016:



#27 of 223 by kentn on Sun Sep 25 15:36:39 2016:

On the evening of Sept. 23, 2016, Grex started refusing connections.
A reboot fixed the issue.

Thank you, Tony!


#28 of 223 by duszek on Fri Dec 2 16:06:31 2016:

good!


#29 of 223 by jhesse on Mon Dec 19 19:49:38 2016:

Is anybody else able to send email outside of grex?  It seems that anything
I try sending to the spousal unit is silently getting dropped.



#30 of 223 by jhesse on Thu Dec 22 16:22:32 2016:

Ok, update.  Got this bounce. "550 Local CT IP Reputation Policy".  
...
<jhesse@ieee.org>: host us-smtp-2.mimecast.com[205.139.110.241] said: 550
Local
   CT IP Reputation Policy (Reject) -
   https://community.mimecast.com/docs/DOC-1369#550 (in reply to RCPT TO
   command)
Reporting-MTA: dns; grex.org
X-Postfix-Queue-ID: C545E20396B
X-Postfix-Sender: rfc822; jhesse@grex.org
Arrival-Date: Thu, 22 Dec 2016 11:07:47 -0500 (EST)

Final-Recipient: rfc822; jhesse@ieee.org
Action: failed
Status: 5.0.0
Remote-MTA: dns; us-smtp-2.mimecast.com
Diagnostic-Code: smtp; 550 Local CT IP Reputation Policy (Reject) -
   https://community.mimecast.com/docs/DOC-1369#550


#31 of 223 by kentn on Sat Dec 24 03:52:57 2016:

Yahoo tends to bounce e-mails, maybe other ISPs.  You can thank all
the idiots who send spam from Grex or imitate Grex users when they
send their spam from other places.


#32 of 223 by jhesse on Sun Dec 25 20:31:15 2016:

This is more than just Yahoo.  The bounces I'm getting from IEEE and
Slumberland indicate their outsourced MTA doesn't like our ip or something
is misconfigured.  (Yahoo's bounce is just kind of broken, like Yahoo in
general)

Is spam from grex a thing?  I'm currently getting slammed by up to 200 spams
a day, and all of it is from botnetted residentials or compromised Word Press
installations.  Finally had to set up procmail, after twenty years.
(Thank you for having procmail here.  Saves a lot of wear on the "d" key...)



#33 of 223 by kentn on Mon Dec 26 04:23:09 2016:

You can run spamassassin and get rid of most of the spam.   We've had
users sending thousands of spam e-mails from Grex to other sites and
we usually lock their accounts.  But, some outside spammers spoof our
user addresses and it looks to other sites like Grex is sending the
e-mail when it is not.
 
procmail also helps get rid of spam, as you note.


#34 of 223 by keesan on Wed Jan 11 14:50:51 2017:

I did not see a Winter 2017 System Problems.
Grex is currently on the Barracuda Reputations spam list.  I first learned
about this list yesterday when it also blocked SDF outgoing mail.  I use grex
to send mail to Yahoo when SDF is on the yahoo list.  Grex appears not to be
on the Yahoo list.  An administrator should fill out a block removal form for
Barracuda.  Maybe they changed criteria recently.  


#35 of 223 by belial on Mon Jan 16 18:13:33 2017:

Cross. there is user named" imabot or imamachine [dont remmber as i cant open
second window t ochek. he is running some kind of botnet. just check his home
directory and process that he is running


#36 of 223 by nharmon on Mon Jan 16 21:09:53 2017:

Looks like several instances of a TCP forwarder running under user imarobot,
which may be owned by user huuygt77.


#37 of 223 by cross on Sat Jan 21 01:28:29 2017:

Hmm; doesn't seem to be running anymore. Is it doing something to harm the
system?


#38 of 223 by kentn on Sat Jan 21 02:26:36 2017:

He's running socat from his home directory. As we don't want people running
bots and bouncers, he shouldn't be doing that. When he is running his little
network he's using a lot more processes than the normal user, too. I'm not
sure what he's trying to accomplish other than using resources. 


#39 of 223 by cross on Sat Jan 21 08:19:38 2017:

Sure, he's using slots in the process table; but is there any realized effect
on grex? If not, I don't see the harm.


#40 of 223 by papa on Mon Jan 30 18:33:32 2017:

`change` program menu choice C (Cflist) fails with the following messages:

".cflist" builder program version 1.0 written by "nt"
File "public.txt" doesn't exist



#41 of 223 by papa on Mon Jan 30 23:05:09 2017:

(Repeating post from agorage conference.)

 Is this the appropriate place to request a new Perl module from CPAN be
 installed on Grex?

 If so, would it be possible to install Text::WikiCreole? It's for converting
 wiki-style markup to HTML. I'd like to play with it to build a wiki-like,
but
 statically-generated with no CGI, site in my web page here.


#42 of 223 by papa on Tue Jan 31 22:53:50 2017:

Another bug report. `change` menu choice 'm' ("My finger settings ...") -->
menu choice 'f' ("Finger papa") fails with error message:

/cyberspace/bin/change_plan[68]: grexmore: not found


#43 of 223 by cross on Wed Feb 1 19:31:01 2017:

That should be fixed now; the script manually set $PATH and did
it wrong.


#44 of 223 by papa on Wed Feb 1 22:40:14 2017:

bbs "Respond, pass..." prompt command "?" is broken:

Respond, pass, forget, quit, or ? for more options? ?
I don't understand "?" - type HELP for help



#45 of 223 by papa on Wed Feb 1 22:48:39 2017:

I confirm that #42 is fixed. Thanks, Dan.


#46 of 223 by tonster on Sat Feb 18 16:40:43 2017:

Grex took an extended vacation due to problems with my ISP. AT&T was
never able to determine (well, honestly, they didn't even look) the
reason for the packet-loss i was getting, so they ultimately assigned a
new block of IP's. Things should be returning to normal as DNS continues
to propagate out.


#47 of 223 by kentn on Sat Feb 18 20:41:31 2017:

Thanks for getting things going again, Tony!


#48 of 223 by papa on Sat Feb 18 20:55:18 2017:

Glad to find Grex back on-line. Missed y'all while it was down.


#49 of 223 by jhesse on Sun Feb 19 00:16:22 2017:



#50 of 223 by jhesse on Mon Feb 20 18:49:36 2017:

Ack.  Not sure what happened on #49.  Sorry about that.
 
Update:  Mail to Yahoo is working now.  Thank you, if the fix was on this end.


#51 of 223 by tonster on Tue Feb 21 13:17:36 2017:

Ironically, this would have fixed that issue as Grex's IP changed so
Yahoo won't have blocked this one (yet).


#52 of 223 by telnetuserid on Sun Mar 12 13:26:43 2017:

 I just performed ssl test for grex.org on ssllabs. The result is 'F',
 which is probably caused by old software.
 https://www.ssllabs.com/ssltest/analyze?d=grex.org
 I am looking forward for grex to improve in this area, i.e. supporting 
 TLS best practice.


#53 of 223 by tod on Sun Mar 12 16:41:06 2017:

can we read your report with netscape navigator?


#54 of 223 by nharmon on Sun Mar 12 17:16:36 2017:

I recommend nobody transmit any protected health information or processes any 
payment cards via Grex. You've been warned.


#55 of 223 by kentn on Mon Mar 13 03:21:36 2017:

For improving in any such area, it takes time and effort to do so.  And
if staff don't have time (which is quite often in the past few years),
then it won't likely happen.  The last time we updated the OS, a number
of home-grown applications had to change significantly and it was a lot
of work for staff to get things working again.  Updating the OS would
go a long way toward fixing any TLS issues, I'd expect, but that won't
happen without a lot of staff effort.


#56 of 223 by telnetuserid on Mon Mar 13 18:33:37 2017:



#57 of 223 by telnetuserid on Mon Mar 13 18:53:42 2017:

 For this to happen, a planned downtime and maintenance 
 need to be performed.
 Just gather the staffs and discuss everything.
 Getting in touch with devio.us maintainer is also a 
 good thing to do, since they've successfully updated 
 their system to 5.8 without any major issue.


#58 of 223 by tod on Mon Mar 13 23:54:55 2017:

We'll conduct a change management review with the change advisory board
in the cone of silence tunnel below our facility over by the COTS
area.  Those of you who have not been on the calls for this are free
to dialin on our closed circuit line by the entrance.
No cell phones or biomed bracelets are permitted.
Bring a dixie cup of hand sanitizer.


#59 of 223 by papa on Tue Mar 14 10:51:00 2017:

Does not sound pretty.


#60 of 223 by tonster on Tue Mar 14 13:14:41 2017:

downtime isn't the issue, it's for the staff to have the time to plan
and execute the upgrade. I've created VM's for the new system, but we
haven't had a lot of time to go beyond that stage. At some point
hopefully that'll change, but right now we're just trying to keep the
last remaining light on.


#61 of 223 by tod on Fri Apr 7 17:40:35 2017:

*sound of poopy trombones*

grex% slrn -f /a/t/o/tod/.jnewsrc --create
slrn 0.9.9p1

Loading /usr/local/share/slrn/slang/slrn.sl
Using newsrc file /a/t/o/tod/.jnewsrc for server news.provide.net.
Connecting to host news.provide.net ...
Failed to resolve news.provide.net

Run-Time Error
slrn fatal error:
Failed to initialize server.


#62 of 223 by kentn on Sat Apr 8 00:03:04 2017:

I think I had to get a free news account outside of grex to
get it to work.  I don't think we can access provide.net for
news any more.


#63 of 223 by mijk on Sat Apr 8 21:51:22 2017:



#64 of 223 by kentn on Sun Apr 9 02:31:59 2017:

See:  http://dotsrc.org/usenet/ as one way to get usenet news.
You need to register but I don't think costs anything.


#65 of 223 by cross on Mon Apr 10 14:54:42 2017:

Eternal September is popular with the kids these dats.


#66 of 223 by mijk on Mon Apr 10 21:14:51 2017:

I was just about to say the same, accept i probably am one of the kids. :)


#67 of 223 by kentn on Mon Apr 10 23:36:24 2017:

It takes some time to set things up, and of course, we need to
(according to some) start over with just a few of standard starter
items.  So, we could see how it would work...Spring/Summer.  We
don't really have a cfadmin any more, who would normally do this.


#68 of 223 by tod on Tue Apr 11 03:39:35 2017:

re #62
Once upon a time I could rely on UM ITD but they removed me like Napoleon
Bonaparte


#69 of 223 by ryan on Fri Apr 28 14:13:41 2017:

Just a FYI -

When logging in, the default tset command in my .profile was choking on what it
was finding my terminal to be: "screen.xterm-256color".

Fixed it by export TERM="vt100" in my .profile.



#70 of 223 by tod on Fri Apr 28 23:46:20 2017:

vt102 is better!


#71 of 223 by kentn on Sat May 13 22:36:27 2017:

Looks like we upgraded to OpenBSD v6.1.  I see the webserver is not
running so we can't use the RT help desk, nor is our imap daemon
(dovecot). bbs is operating somewhat differently (fixseen doesn't fix
things completely, and there were tons of new responses that were not
new.  Also the scrolling is showing an entire screen for one response
i.e. lots of white space). Am assuming this is all in process now and
will be fixed as we go along.  Knowing how much trouble our last upgrade
to OpenBSD caused, I hope we can get past this one in good shape without
a lot of hassle.  Thanks so much for this effort to upgrade grex!


#72 of 223 by cross on Sun May 14 02:56:06 2017:

For the weird blank lines thing, add the `-c` option to your pager
command line, if you are using `less`.


#73 of 223 by cross on Sun May 14 02:56:32 2017:

Oh and PS: we are definitely hitting some bugs in backtalk.


#74 of 223 by kentn on Sun May 14 04:04:17 2017:

Thanks!


#75 of 223 by kentn on Sun May 14 21:16:09 2017:

Yes -c fixed the issue.  In fronttalk you can change your pager
using the DEFINE command.  DEFINE PAGER will show what you currently
have for a pager.  HELP DEFINE will show how to use DEFINE.


#76 of 223 by papa on Sun May 14 23:53:50 2017:

The party 5-minute-idle-boot is an annoying "feature" that the upgrade seems
to have awakened.


#77 of 223 by kentn on Mon May 15 02:28:39 2017:

Will we install dovecot or something similar for IMAP e-mail access?
We had it running previously.
 
I'm still not sure how the help desk is going to work if we don't have
RT working on the new system.  While there are ways around this, we need
to let people know, and those of us doing validations and other help
tasks need some way to see the requests come in and answer them.  


#78 of 223 by cross on Mon May 15 12:19:09 2017:

resp:76 What five minute idle timeout?

resp:77 Dovecot is installed and running.


#79 of 223 by cross on Mon May 15 12:22:54 2017:

I think I found (and fixed) the idle timeout thing.


#80 of 223 by kentn on Mon May 15 21:42:54 2017:

Thank you, Dan!  Upgrades are a lot work, I know.


#81 of 223 by papa on Tue May 16 22:32:45 2017:

Thanks for fixing 5-minute idle boot and first-character-swallowing problems
on party.


#82 of 223 by papa on Tue May 16 22:41:34 2017:

In bbs, the pager (grexmore?) prompt "- (END)[Press space to continue, q to
quit, h for help]" is being displayed and output paused before a full page
of text has been printed. An extreme example is after entering r*ead at the
Ok: prompt, the pager pauses and displays its prompt immediately after the
command is entered before any text is displayed.
 
Is there an environment variable or something that needs to be set to fit our
actual terminal size?


#83 of 223 by cross on Wed May 17 01:04:06 2017:

Look at the page size data in `stty -a`? Is it weird looking?


#84 of 223 by papa on Wed May 17 17:32:01 2017:

42x80 looks OK


#85 of 223 by commodorejohn on Wed May 17 17:52:53 2017:

stty -a reports 80x24, which is what my PuTTY session is set to. But I see
this behavior as well - sometimes it'll print a single line of text in bbs
and then fire off a pager prompt.



#86 of 223 by cross on Wed May 17 19:14:33 2017:

That's weird....

To be honest, I'm actually having a hard time even visualizing quite what you
guys mean. Can someone post a screen shot somewhere or something?


#87 of 223 by tod on Wed May 17 21:29:42 2017:

It's weird now...it shows how many bytes have been read until then the
last Page says (END)


#88 of 223 by tod on Wed May 17 21:30:27 2017:

- (END)[Press space to continue, q to quit, h for help]


#89 of 223 by papa on Thu May 18 00:08:23 2017:

Screen shot: http://grex.org/~papa/tmp/premature-pager.png
 
I entered "r" at the Ok: prompt to read the new messages. bbs should either
print the first new message completely if the message is 42 lines or less,
or print the first 42 lines and then the "...Press space to continue..."
prompt. Instead, it prints the pager prompt immediately after I enter "r"
without printing any message text.


#90 of 223 by cross on Thu May 18 01:00:36 2017:

Thanks, now I think I understand what you mean.

I wonder if it's trying to print some kind of prefix file or something, and
that file happens to be zero length....

Please give it a go now. `more` was replaced with `less`, and when you invoke
`less` as `more`, it enters a compatability mode, but it's not exact.


#91 of 223 by papa on Thu May 18 10:57:42 2017:

The pager problem appears to be solved. Thanks!


#92 of 223 by cross on Thu May 18 14:53:07 2017:

Happy to do it.


#93 of 223 by papa on Thu May 18 23:01:16 2017:

My bbs already-read data was lost during the upgrade. Is it just me?
 
Not a major problem since I can gradually re-catch-up.


#94 of 223 by papa on Thu May 18 23:26:15 2017:

emacs executable is no longer in my path. Did it move, or does it need to be
reinstalled?


#95 of 223 by cross on Fri May 19 00:25:28 2017:

Try now. The installation was messed up.

Due to the age and, er, vintage of the version of OpenBSD running on Grex
before the upgrade, some commands were installed by hand. This caused
conflicts with the package system; the result in this case was a missing
symlink.


#96 of 223 by papa on Fri May 19 09:28:11 2017:

Emacs is Back and Beautiful! :)


#97 of 223 by kentn on Fri May 19 22:03:12 2017:

There was a new version of emacs on the old version of Open BSD already. This
one is probably the same or maybe a little newer. So it's not like we didn't
have it before.


#98 of 223 by cross on Fri May 19 23:33:42 2017:

No one said we didn't.

But because the previous Grex had such an old ports collection, we had
to build that one from source; this caused port name conflicts with the
new version from the ports collection. As a result, the
/usr/local/bin/emacs ssymbolic link wasn't properly installed by the
package manager.


#99 of 223 by papa on Sat May 20 00:43:22 2017:

What cross said.


#100 of 223 by papa on Sat May 20 00:57:34 2017:

As I mentioned before, my backtalk/bbs viewing history got zapped during the
OS upgrade. Trying to re-catch-up on old posts has uncovered a new problem:
viewing history is not being updated (or not updated correctly) for
conferences other than Agora. 

After reading new items and responses on Agora, I can use the NEXT command
to cycle through conferences in my list, but if I read the new items in a
conference (which, since viewing history was lost, is all items posted since
the beginning) then quit and restart bbs and again cycle through my conference
list with NEXT, the same conferences come up again showing new items, but
their the same items as I previously read.

Does that make any sense?


#101 of 223 by tod on Sat May 20 01:08:52 2017:

Nice pager fix, Dan!


#102 of 223 by cross on Sat May 20 01:24:32 2017:

resp:100 Not exactly, but try the "fixseen" command.


#103 of 223 by jhesse on Thu Jun 1 14:27:43 2017:

So, since yesterday I'm not getting any new mail, with these errors in my
procmail logfile:
procmail: Lock failure on "/var/mail/jhesse.lock"
procmail: Error while writing to "/var/mail/jhesse"
From jhesse@fastmail.net  Thu Jun  1 14:14:27 2017
 Subject: testfoo
  Folder: **Bounced**    
My mail client sees nothing over imap. (No old or new mail) elm works as
normal, though.
Do I need to change something?



#104 of 223 by papa on Thu Jun 1 23:26:46 2017:

Maybe related to jhesse's problem, yesterday I checked my Grex mail box for
the first time since the upgrade and was greeted with the message "Can't open
folder /var/mail/papa: no such folder" instead of the usual "0 messages in
inbox".


#105 of 223 by cross on Fri Jun 2 00:36:00 2017:

Mail is now delivered into your home directory; so your mail spool file
is in ~/Mailbox. If you're sourcing the global dot files, you should get an
environmnet variable that tells mail programs and the like where to find
your mail.


#106 of 223 by cross on Fri Jun 2 00:36:43 2017:

resp:103 Oh sorry; missed this earlier today. As as resp:105. If you're
setting $MAIL, then unset it; modify your .procmailrc accordingly.


#107 of 223 by jhesse on Fri Jun 2 15:08:14 2017:

Thanks!  .procmailrc is fixed, so I can get mail again through elm.  IMAP and
POP still not working, though.  My mail client says it can connect to both
and I'm not seeing anything contrary in the logs.
The server daemon is dovecot, correct?  I don't know enough to know the
configuration.



#108 of 223 by kentn on Fri Jun 2 17:14:39 2017:

Yes, IMAP is a problem now.  It doesn't seem to know to look in our home
directory for the Mailbox file.  I suspect this requires a bit of tweaking
of the dovecot config, but it is do-able.


#109 of 223 by cross on Fri Jun 2 20:59:22 2017:

Funny... I updated the dovecot config the 
other day. It should work. I'm out of town at 
the moment, but will try and see about it if I 
can login.


#110 of 223 by kentn on Sat Jun 3 00:35:01 2017:

Thanks, Dan!


#111 of 223 by cross on Sat Jun 3 12:15:45 2017:

Ahhh..found it. The dovecot config file moved from the last
version on Grex until now. I've updated the correct version. It
should work again.


#112 of 223 by jhesse on Sat Jun 3 13:47:11 2017:

Thank you again.  Everything seems to be working.



#113 of 223 by kentn on Sat Jun 3 23:59:44 2017:

Agree.  I'm receiving and sending e-mail now.  Just took a few tweaks to
my setup (.login, .tcshrc, and .procmailrc).


#114 of 223 by tod on Sun Jun 11 20:03:33 2017:

Something is quirky...


1 newresponse item
First item 1, last 140

Browse (item list), Read (new items),
Join confname (type "help conf" for a list of conferences),
Help (for more help), pine (for e-mail)
or Quit (to exit from Picospan).

Ok: r
No items found in range

Browse (item list), Read (new items),
Join confname (type "help conf" for a list of conferences),
Help (for more help), pine (for e-mail)
or Quit (to exit from Picospan).



#115 of 223 by papa on Mon Jun 12 00:11:58 2017:

tod's problem has been happening a lot since the OS upgrade. 

The whole fronttalk bookmark system has been wonky. Before the upgrade I had
paged through the backlog in every conference. After the OS upgrade I found
my conference bookmarks all reset. But now if I read through the backlog on
a conference, then check the conference again later, the new item and response
numbers aren't changed.


#116 of 223 by papa on Mon Jun 12 03:35:15 2017:

P.S. The new items filter on the web interface works fine.


#117 of 223 by cross on Mon Jun 12 14:04:06 2017:

resp:114 I'm seeing that, too.


#118 of 223 by tod on Mon Jun 12 15:50:07 2017:

Does "fixseen" or "fix" repair it per cf?


#119 of 223 by cross on Mon Jun 12 16:15:03 2017:

Not really.

I'm not sure what's up with it; I rather suspect a bug in backtalk.


#120 of 223 by telnetuserid on Mon Jun 12 19:24:54 2017:

I can't resolve reddit.com and news.ycombinator.com dns address.
Is this a temporary error or intended behavior?


#121 of 223 by cross on Mon Jun 12 20:12:24 2017:

Certainly not intended. I just checked and both resolved for me....


#122 of 223 by kentn on Mon Jun 12 20:44:42 2017:

reddit.com didn't resolve for me from lynx.   But yahoo.com did.
Maybe it was a slight internet glitch.


#123 of 223 by cross on Mon Jun 12 20:45:44 2017:

Didn't resolve or didn't connect?


#124 of 223 by kentn on Mon Jun 12 21:07:55 2017:

"Unable to connect to remote host"


#125 of 223 by cross on Tue Jun 13 04:06:46 2017:

That's rather different. :-)


#126 of 223 by kentn on Tue Jun 13 11:54:38 2017:

It does resolve okay, then just doesn't connect.  I don't
use reddit.com anyway, so it doesn't bother me.  Other sites
do connect.


#127 of 223 by cross on Tue Jun 13 15:13:17 2017:

Weird. Observe:

: grex; host reddit.com
reddit.com has address 151.101.65.140
reddit.com has address 151.101.193.140
reddit.com has address 151.101.129.140
reddit.com has address 151.101.1.140
reddit.com mail is handled by 1 aspmx.l.google.com.
reddit.com mail is handled by 10 aspmx2.googlemail.com.
reddit.com mail is handled by 10 aspmx3.googlemail.com.
reddit.com mail is handled by 5 alt1.aspmx.l.google.com.
reddit.com mail is handled by 5 alt2.aspmx.l.google.com.
: grex; ping reddit.com
ping: no address associated with name
: grex; ping 151.101.65.140
PING 151.101.65.140 (151.101.65.140): 56 data bytes
64 bytes from 151.101.65.140: icmp_seq=0 ttl=56 time=26.270 ms
64 bytes from 151.101.65.140: icmp_seq=1 ttl=56 time=26.722 ms
64 bytes from 151.101.65.140: icmp_seq=2 ttl=56 time=26.755 ms
^C
--- 151.101.65.140 ping statistics ---
3 packets transmitted, 3 packets received, 0.0% packet loss
round-trip min/avg/max/std-dev = 26.270/26.582/26.755/0.221 ms
: grex;

I cn't see any rational reason why ping would complain about
address translation for reddit.com. But wait:

: grex; host -v reddit.com
Trying "reddit.com"
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 63255
;; flags: qr rd ra; QUERY: 1, ANSWER: 4, AUTHORITY: 0, ADDITIONAL: 0

;; QUESTION SECTION:
;reddit.com.                    IN      A

;; ANSWER SECTION:
reddit.com.             101     IN      A       151.101.65.140
reddit.com.             101     IN      A       151.101.129.140
reddit.com.             101     IN      A       151.101.1.140
reddit.com.             101     IN      A       151.101.193.140

Received 92 bytes from 8.8.8.8#53 in 41 ms
Trying "reddit.com"
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 33781
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;reddit.com.                    IN      AAAA

;; AUTHORITY SECTION:
reddit.com.             466     IN      SOA     ns-557.awsdns-05.net.
awsdns-hostmaster.amazon.com. 1 7200 900 1209600 86400

Received 109 bytes from 8.8.8.8#53 in 38 ms
Trying "reddit.com"
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 23449
;; flags: qr rd ra; QUERY: 1, ANSWER: 5, AUTHORITY: 0, ADDITIONAL: 0

;; QUESTION SECTION:
;reddit.com.                    IN      MX

;; ANSWER SECTION:
reddit.com.             71      IN      MX      1 aspmx.l.google.com.
reddit.com.             71      IN      MX      10 aspmx2.googlemail.com.
reddit.com.             71      IN      MX      10 aspmx3.googlemail.com.
reddit.com.             71      IN      MX      5 alt1.aspmx.l.google.com.
reddit.com.             71      IN      MX      5 alt2.aspmx.l.google.com.

Received 158 bytes from 8.8.8.8#53 in 41 ms
: grex;

Meanwhile,

: grex; dig reddit.com

; <<>> DiG 9.4.2-P2 <<>> reddit.com
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: SERVFAIL, id: 41600
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 0

;; QUESTION SECTION:
;reddit.com.                    IN      A

;; Query time: 40 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Tue Jun 13 11:10:15 2017
;; MSG SIZE  rcvd: 28

: grex;

So it would seem that unbound running on Grex isn't happy returning
results for reddit.com. Weird.


#128 of 223 by papa on Tue Jun 13 22:59:22 2017:

bash is my default shell and in my .bashrc I add the directories ~/man and
~/share/man to my MANPATH variable. If I echo $MANPATH, the tilda in the paths
is correctly expanded to /p/a/papa, but if I run man or apropos for an unknown
command, the error message indicates the programs are searching my old home
directory /u/p/a/papa.


#129 of 223 by kentn on Wed Jun 14 01:20:58 2017:

Re: 127, thanks.  Yeah it was a bit weird.  


#130 of 223 by cross on Wed Jun 14 02:40:44 2017:

resp:128 That's actually correct. /p is a symbolic link to /u/p (don't
ask why...filesystem limitations). So /p/a/papa is /u/p/a/papa; the
error message must expand out the readlink() results into the pathname
(or rather, the commands that generate the error message do that).


#131 of 223 by papa on Wed Jun 14 11:55:26 2017:

OK. No worries then.


#132 of 223 by kentn on Thu Jun 15 00:41:03 2017:

It's almost like having two home directories, but not.


#133 of 223 by telnetuserid on Tue Jun 20 15:48:32 2017:

Regarding local dns resolution for reddit.com, it seems that 
grex local dns doesn't cache reddit.com address.
Resolving through google dns works fine.

Does grex local dns server resolve the name through upstream 
resolver or recursively querying root servers?



#134 of 223 by telnetuserid on Tue Jun 20 16:03:09 2017:

After viewing /etc/resolv.conf and /var/unbound/etc/unbound.conf 
it seems that grex uses both local resolver and google dns servers.
I suggest removing google dns entries in /etc/resolv.conf and enabling 
dns forwarding in the unbound.conf

forward-zone:
  name: "."
  forward-addr: 8.8.8.8
  forward-addr: 8.8.4.4
  forward-first: yes

Enabling forward-zone should give better dns resolving capability 
in the applications and makes better unbound dns caching for 
subsequents dns lookup.


#135 of 223 by cross on Tue Jun 20 21:04:28 2017:

That sounds like a reasonable approach; I'll go ahead and implement it.


#136 of 223 by cross on Tue Jun 20 21:07:22 2017:

Setting unbound to forward to the Google DNS servers seems to work.
Given that name servers in /etc/resolv.conf are checked in order, I
don't see a reason to remove 8.8.8.8 or 8.8.4.4; if unbound ever
crashes for whatever peculiar reason, they'll continue to work.


#137 of 223 by jandal on Tue Jun 20 22:09:49 2017:



#138 of 223 by jandal on Tue Jun 20 22:15:06 2017:

I am unable to send mail to grex.

   ----- Transcript of session follows -----
... while talking to grex.org.:
>>> DATA
<<< 554 5.7.1 Service unavailable; Client host [205.166.94.20] blocked
using multi.uribl.com; 127.0.0.1 -> Query Refused.
See http://uribl.com/refused.shtml for more information
[Your DNS IP: 173.194.94.133]
554 5.0.0 Service unavailable
<<< 554 5.5.1 Error: no valid recipients

Reading the referred page, I see:
> If an email you sent bounced, and included a link to this page, then
> it was rejected because the receiver has not implemented URIBL lookups
> correctly.

Please note that I don't use grex as my mail mailserver; however this
still seems like a system problem that should be reported.


#139 of 223 by jandal on Tue Jun 20 22:18:36 2017:

PS. Further, I read on the above-mentioned page:
> Possibly changing your nameservers from a public dns provider (ie
> opendns/google) to your local ISP may solve it.

Is this issue a result of the recent DNS changes discussed above?


#140 of 223 by telnetuserid on Wed Jun 21 01:40:12 2017:

The downside of using dns forwarding to public dns server
is uribl will prevent sending mails to grex.

There is an alternative to solve the issue. Instead of
using dns forwarding, add an updated root-hint file so
that the dns resolver will query root-servers and prevent
dns blacklisting on grex.

Unbound has built-in root-hint, but it's often outdated.
The updated root-hint file can be obtained from 
https://www.iana.org/domains/root/files

The unbound.conf needs to be updated to include
root-hints: /path/to/updated/root-hint



#141 of 223 by cross on Wed Jun 21 14:02:15 2017:

Perhaps I'm missing something, but it seems like not forwarding to the public
servers puts us back into the same boat with e.g. reddit that we made this
change to get out of in the first place. Am I missing something here?


#142 of 223 by jhesse on Wed Jun 21 16:05:00 2017:

Re: #138:  Got the same bounce on a test message.  No new emails since Monday.



#143 of 223 by cross on Wed Jun 21 17:47:24 2017:

Try again: I've reset Grex's DNS configuration to be substantially similar
to what it was before.


#144 of 223 by cross on Wed Jun 21 18:54:11 2017:

Actually, uribl.com wasn't happy at the rate of queries directly from Grex,
either, so I've disabled it. Sadly, this will allow more spam through; but
it will also allow real mail in, too.

unbound is now forwarding to 8.8.8.8 and 8.8.4.4 again, so resolving
'reddit.com' works again.


#145 of 223 by kentn on Thu Jun 22 01:27:01 2017:

Here's what I'm getting with RT now:

"RT has detected a possible cross-site request forgery for this request,
because the Referrer header supplied by your browser (www.grex.org:443)
is not allowed by RT's configured hostname (grex.org:443). A malicious
attacker may be trying to update a ticket on your behalf. If you did not
initiate this request, then you should alert your security team."

Then you have to click a link to continue. I have to do this a couple
times to respond to a ticket.  This started after the most recent
changes to the dns, etc.  Is there some way to fix RT so it doesn't do
this and lets me respond to tickets easily like it used to?  Looks like
it might be the difference between www.grex.org and just grex.org.



#146 of 223 by cross on Thu Jun 22 02:54:48 2017:

Hmm. Are you connecting to https://www.grex.org/ or https://grex.org?
You should always use the latter.


#147 of 223 by kentn on Thu Jun 22 11:32:47 2017:

I'm connecting to https://grex.org/.  If the browser adds "www." I don't
see it.



#148 of 223 by cross on Thu Jun 22 14:38:03 2017:

Hmm. That's weird; I can't seem to reproduce it....


#149 of 223 by telnetuserid on Fri Jun 23 09:30:27 2017:

For redirecting www.grex.org to grex.org, I think a http
server rewrite rule is sufficient.


#150 of 223 by telnetuserid on Sat Jun 24 15:45:14 2017:

I mean, the http server need to give 301 response when 
a GET request to www.grex.org performed, redirecting 
the request to correct domain.

Here is nginx configuration snippet to do that.
server {
    server_name www.grex.org;
    return 301 $scheme://example.org$request_uri;
}



#151 of 223 by tonster on Sun Jun 25 23:21:43 2017:

resp:144: feel free to use 99.95.107.130, 45.33.105.232, and
45.79.186.112 for DNS forwards. They're my caching nameservers and are
already configured to allow queries from my block.


#152 of 223 by kentn on Sun Oct 29 17:54:14 2017:

Obviously, grex was unavailable for several days this past week.  There
was a network hardware issue and it took a while to get hardware
replaced and hooked back up.  I just got to grex via grex.org, so
that is working again. cyberspace.org works okay, too.  New IP is
75.61.90.157.  DNS is catching up with this change and most everything
should be working now, or will be soon.

Thanks to Tony for getting us going again!


#153 of 223 by tod on Tue Oct 31 16:30:33 2017:

Thanks


#154 of 223 by kentn on Wed Apr 18 12:09:34 2018:

Grex was offline for a while in the last couple days.  This was due to
the huge ice storm that came through and knocked out the electricity in
a lot of areas around here.

Where I'm at the electricity was off for 4 hours, which is more than
enough for most UPSes to run out of energy to keep things going.

Tony was able to successfully booted again. Thank you, Tony!


#155 of 223 by papa on Wed Apr 18 12:46:04 2018:

resp:154

Glad Grex is back up. Thank you Tony and Kent.


#156 of 223 by kentn on Fri Apr 20 21:17:51 2018:

There have been some reports of connection and application issues since
we brought Grex back up.  The web site and ssh should be working again
and so should mutt and mc.  The RT help desk app doesn't seem to be
working right now so I'm unable to reply to validation and help requests
even though I can, when I find the time, work on them.  


#157 of 223 by cross on Fri Apr 20 23:13:00 2018:

resp:156 What exactly is not working? Any error messages?


#158 of 223 by kentn on Fri Apr 20 23:43:42 2018:

Right now, it is a case of Firefox can't connect, but earlier it said
to contact the administrator (and that was all).


#159 of 223 by cross on Sat Apr 21 01:54:18 2018:

Hmm. It seems some file permissions were wrong; probably due to
me upgrading the web server. Are you still having problems? I'm
able to get into RT, but didn't try to do anything....


#160 of 223 by kentn on Sat Apr 21 14:39:01 2018:

It's working for me now.  Thanks!


#161 of 223 by kentn on Tue May 29 19:51:35 2018:

E-mail may not be working for you if it requires a SSL certificate to
be up to date.  Grex's SSL certs expired today and that seems to be one
reason.  Another reason is that grex tends to be blacklisted on some
popular sites including gmail. My iphone was complaining about every
15 seconds that grex.org was not verified and it said the SSL cert had
expired.



#162 of 223 by glitch on Tue Jun 5 20:58:43 2018:

SSH is quite laggy, I'm logged in to a handful of other systems for work and
have no issues there, so I'm pretty sure it's not me.

Seems that the SSL cert has expired for Backtalk. Since we're on OpenBSD 6.3
here, we've got acmetool (a client for LetsEncrypt) right in the base OS --
not only are the certs free, but the update process can (and should!) be
automated with a cron job or /etc/daily.local entry. Ping me for help, I run
OpenBSD servers for $day_job :)

Finally, it seems /var/mail/glitch is gone and I can't get email here at the
moment.


#163 of 223 by kentn on Thu Jun 14 02:13:50 2018:

Email was moved to your home directory and is no longer in /var/mail.


#164 of 223 by tonster on Thu Sep 6 07:32:39 2018:

We should definitely setup letsencrypt for our ssl certs. I think I
started looking into it and then got busy with my own $day_job. :) 

In other news, we were offline for the better part of 3 days due to a
storm on Monday. Multiple lightning strikes were reported by my
equipment, the closest being 0.3 miles away. It took out my internet
router, a video card, one of my STB's and caused some really weird shit
with multiple other computer components on my network. AT&T came out
this evening and got the internet back online. The graphics card for my
main pc was the biggest issue for me. :( Luckily I'll get that
Friday...but in the meantime, Grex is back....


#165 of 223 by papa on Thu Sep 6 09:24:22 2018:

Thanks, tonster. Condolences on the graphics card.


#166 of 223 by tod on Thu Sep 6 17:41:13 2018:

re #164
What was the STB? (Roku?)
Thanks for getting it back online


#167 of 223 by tonster on Fri Sep 7 07:39:34 2018:

resp:166: U-Verse receivers. My Roku devices are all still working fine.
I was rather surprised to see the U-Verse receiver dead. My network gear
all had to be rebooted after the strike, as they weren't passing
traffic. One of the switches I had to reboot twice before it finally
started working properly. All in all really weird shit I haven't seen in
storms up to now. All of the equipment was behind UPS' too, although I
suspect the surge that took out the AT&T RG probably came through the
phone line which is unprotected.


#168 of 223 by tod on Sat Sep 8 01:10:15 2018:

re #167
Zoinks.  Must have been right in your backyard


#169 of 223 by tonster on Tue Sep 18 13:04:53 2018:

resp:168: Indeed. Annoying how much equipment I've lost this summer! I'm
still upset at having the UPS taken out a couple months ago. :(

I've now configured acme-client on grex and enabled/installed an SSL
certificate from letsencrypt. Still need to automate this so that it
renews automatically every 3 months, but at least it's now as simple as
running acme-client to generate a new ssl certificate, and then restart
nginx.


#170 of 223 by tonster on Tue Sep 18 13:19:55 2018:

ssl certificates should now auto-renew as well, and restart nginx when
it does...we'll see in December!


#171 of 223 by tod on Wed Sep 19 03:48:11 2018:

Yee hah!
letsencrypt ...i have higher hopes than Thawte


#172 of 223 by kentn on Thu Sep 20 03:00:38 2018:

Thanks for fixing up the ssl certs, Tony.  That will help a lot.


#173 of 223 by kentn on Thu Nov 1 21:55:04 2018:

Time on Grex is almost 2 hours off.  It's not the TZ setting we use.
For some reason the clock has wandered.  Perhaps ntpd stopped running
or never got restarted?  Or maybe a reboot knocked the clock out of
whack.


#174 of 223 by tod on Mon Nov 5 22:17:43 2018:

Grex is futuristic


#175 of 223 by papa on Mon Nov 5 22:40:36 2018:

Retro-futuristic


#176 of 223 by cross on Mon Nov 5 22:48:13 2018:

Interesting.  Thanks for the report; I sync'ed it manually
(doas rdate -n pool.ntp.org) and it's now sync'ed as a
stratum 3 server.

I've found that the NTP server in OpenBSD tends to drift
occasionally, sometimes substantially; particularly on a
virtualized machine.


#177 of 223 by tonster on Wed Nov 14 14:32:39 2018:

Wouldn't surprise me if I needed to correct the time on the hypervisor.
I'll have to take a look sometime.


#178 of 223 by ryan on Mon Nov 19 19:47:18 2018:

User 'romania' is running psybnc for a while now.



#179 of 223 by walkman on Mon Dec 10 22:31:55 2018:

In order to adjust the Grex time module, an OASIS avatar must defeat
Acererak the Demi-Lich in a best-of-three match of Joust.


#180 of 223 by tod on Wed Dec 12 15:18:35 2018:

re #179
The copper key cannot be obtained without a vulcan mind meld with m-net


#181 of 223 by walkman on Fri Dec 14 17:07:33 2018:

re #180 
I did the vulcan mind meld with arbornet and it told me that the deep
state often white-washes real crimes from cabal allies.
https://www.newsweek.com/what-fbi-found-emails-anthony-weiner-laptop-5176
52


#182 of 223 by tod on Fri Dec 14 23:29:35 2018:

re #181
https://www.courthousenews.com/ex-newsweek-owners-arraigned-on-10m-fraud/


#183 of 223 by mijk on Thu Dec 27 20:44:10 2018:

We have to trust the just judges will prevail against the injustices of the
world.


#184 of 223 by tonster on Sun Dec 30 18:22:08 2018:

Looks like my script to auto-renew ssl certs worked in that it did
automatically renew (in November), but I had used a different filename
than the one that was created when it was renewed, so when it bounced
nginx it didn't pick up the new cert. I changed the nginx config to
reference the correct file, so in Jan when it renews it should work as
intended.


#185 of 223 by kentn on Mon Dec 31 13:35:41 2018:

That's good news. Thanks for looking into this.


#186 of 223 by tod on Mon Dec 31 22:00:57 2018:

 :)


#187 of 223 by tonster on Mon Apr 15 12:45:10 2019:

Looks like my script is now working again. It renewed automatically
about a month ago. 

Grex has been recently unavailable due to another bad modem. I had a
power outage about 2 weeks ago, which I believe likely contributed
to/caused this. Wednesday I called in to schedule a service tech and
they attempted to update the firmware to resolve it. It worked for an
hour or so after that, at which point the modem bricked. It came back
online Friday evening but for some reason nginx wouldn't serve pages (or
some other OS issue was blocking requests). I rebooted this morning and
things seem fine now.


#188 of 223 by papa on Mon Apr 15 13:28:26 2019:

Thanks for getting Grex back on-line, Tony. I know it must take a lot of time
and frustration.


#189 of 223 by kentn on Mon Oct 7 01:25:05 2019:

Okay, so Grex was out of commission for several days last week.  I'm told
it was due to a power outage, which I can believe given all the storms
and outages we've had in SE Michigan this year.  Thanks to Tony for getting
it all back up and running again!


#190 of 223 by papa on Mon Oct 7 13:14:26 2019:

resp:189 Yes, big thanks to Tony. Long live Grex!


#191 of 223 by kentn on Thu Oct 10 02:14:08 2019:

One thing that is not currently working is our RT help desk web
application.  At least when I try to access it, it never loads the page
and times out.  So, something isn't quite right there yet.  It seems
the other parts of RT are working, such as assigning ticket numbers.

Thus, while I still get help desk e-mails and can act on them (such as
do password resets and validations), I can't respond except through a
personal account. I'd rather not do that.


#192 of 223 by kentn on Tue Oct 15 12:25:04 2019:

I was able to log in on the RT web application yesterday and do some
clean up.  So it appears to be working now.   


#193 of 223 by kentn on Sat Feb 22 01:38:05 2020:

Okay, you probably noticed that grex was not found for a few weeks.
This is something going on with some hardware and Tony finally had the
time to look into it.  Thanks, Tony!

Not sure what we could've done.  Hardware sometimes causes issues, and
like most of us, the time to look into might be enough to getting done
it up immediately. We have been lucky that Tony has been able to give
Grex a home for years.  So please thank Tony for looking into it!

Welcome back, Grex!

(I had 87 emails when I logged in, so it must have been doing something
part of the time, we just couldn't access it).


#194 of 223 by papa on Sun Feb 23 23:35:25 2020:

Thank you, Tony! Glad to have Grex back!

And also thanks to Tony for all the unsung work he has done for years keeping
Grex running. Does Grex collect enough donations that running the server is
at least not a financial burden?



#195 of 223 by tonster on Fri Feb 28 22:00:03 2020:

The grex hardware was virtualized several years back when it failed the
last time, so it now runs on a VMware server with many other machines I
use for work. So it's really not a financial burden on me, as I'd have
the hardware either way. Having it virtualized, though, does present
somewhat of a challenge as hosting it elsewhere would involve some
complexities. We've discussed a bit about finding a hosted solution, but
bsd (any dirivitive, but openbsd I've never seen) is a very uncommon
supported virtualization OS.


#196 of 223 by tod on Sun Mar 1 01:06:32 2020:

I have mostly CentOS VMs.
Good job, Tony


#197 of 223 by papa on Sun Mar 1 05:04:06 2020:

resp:195 Thanks for explaining Grex's current configuration, Tony.


#198 of 223 by walkman on Mon Mar 2 17:40:31 2020:

#196 How do you like using yum and RPM vs apt-get? I have been using 
Ubuntu for 15 years? I am curious about jumping ship for something new. 


#199 of 223 by tod on Mon Mar 2 18:20:09 2020:

re #198
It's all the same, imo.  I am nostalgic about yum, tho


#200 of 223 by cross on Tue Mar 10 17:56:57 2020:

resp:195 There are hosting providers out there.  For instance,
I'm running some OpenBSD VMs on both Vultr and Digital Island.
But hopefully we'll ditch OpenBSD when moving Grex into the
cloud.  The issue is just time and, frankly, money.


#201 of 223 by lar on Tue Mar 10 22:29:21 2020:

Why does alpine 2.21 give an error "can't open folder /var/mail/lar :
no such folder BUT alpine 2.21 opens my mail fine when accessed from the menu
shell?


#202 of 223 by cross on Wed Mar 11 12:56:45 2020:

resp:201 Probably because you didn't set the $MAIL
environment variable to $HOME/Mailbox ?


#203 of 223 by tod on Wed Mar 11 13:31:15 2020:

mutt vs alpine
discuss


#204 of 223 by papa on Wed Mar 11 22:31:28 2020:

resp:203 On principle, I prefer mutt because it is structurally simpler and
more straight-forward. alpine's menus and on-screen help are a distraction
and waste of space. However, for some reason I have ended up using alpine on
Grex.


#205 of 223 by lar on Thu Mar 12 11:14:14 2020:

re#202
Hi cross,
What is the syntax for that? I was running the C shell (tcsh) and tried 
using the "setenv" command. I have switched shells over to what you are 
using now (bash) How would I do it in that?


#206 of 223 by lar on Thu Mar 12 11:15:09 2020:

..not that we even have an outgoing smtp server that I can see.


#207 of 223 by tod on Thu Mar 12 20:30:34 2020:

re #204
Agreed about mutt


#208 of 223 by kentn on Fri Mar 13 02:12:10 2020:

I've used mh, nmh, pine, alpine, and now mutt. Mutt isn't hard to learn and
seems to work okay for me so I've stuck with it.


#209 of 223 by cunnings on Fri Mar 13 03:01:25 2020:

I like alpine and use in almost everywhere. The menus aren't a distraction,
I operate efficiently via muscle memory. IMO it's easier to navigate through
my many folders dedicated to various email lists, and setting up new filters
is easy using the setup menu. I've used mutt in the past, it's ok, and I like
the vim-like key bindings. MM on TOPS-20 is nice too.


#210 of 223 by tod on Fri Mar 13 04:40:39 2020:

MM is like a fine wine and requires a VT52 for full appreciation.


#211 of 223 by cross on Thu Mar 19 16:57:03 2020:

resp:205 `export MAIL=$HOME/Mailbox`


#212 of 223 by lar on Tue Mar 24 02:06:14 2020:

re#211 
thanks!

How can I validate my account? 


#213 of 223 by tfurrows on Tue Mar 24 18:49:57 2020:

#200, cross, what would Grex use instead of OpenBSD?


#214 of 223 by kentn on Tue Mar 24 19:14:12 2020:

Re 212:  I think you might mean "verify" your account.  Your account is
already validated.  To verify an account on Grex, you need to provide
acceptable identification.  This can, for example, be a copy of a
state-issued valid ID like a driver's license or by using a validated
PayPal account to purchase a minimal membership (e.g. $1).  Validated
PayPal accounts are determined by PayPal.  As you might expect that
generally means they know your real identity and there is a bank account
or credit card connected with the PayPal account.  Since verified users
have more access to the internet, verification allows Grex to identify
people who cause problems, if an agency, like the FBI, come calling (and
believe me they have contactd grex before about particular users).


#215 of 223 by cross on Wed Mar 25 18:47:28 2020:

resp:213 Probably FreeBSD.


#216 of 223 by kentn on Sat Nov 14 22:58:12 2020:

I noted today that one of my computers wouldn't connect to grex via
ssh while another would.  They are different versions of FreeBSD (11.4
worked, 12.1 didn't). Same setups of ssh_config.

Anyway changing the MTU for 12.1 fixed it, which is a bit weird.  I had
to edit /etc/dhclient.conf and supersede the interface-mtu setting that
normally is set to 1500 by DHCP and setting it to 1400 helped.  Probably
this is due to the ciphers that get picked in the ssh connection.
Each computer picks a different one (using the same setup).  So more
investigations to do.

I had noted someone else had seen something similar in the past couple
weeks.


#217 of 223 by papa on Mon Nov 16 00:02:46 2020:

resp:216

I've posted more details on the trouble here: item:garage:60


#218 of 223 by kentn on Mon Nov 16 01:49:10 2020:

Thanks, papa.


#219 of 223 by tonster on Mon Nov 16 19:04:42 2020:

My guess is that it might have to do with the method now used for
accessing Grex. I recently canceled my AT&T service, which allowed me to
have static IP's at home. With that now gone, I've established a VPN
between my servers in Azure and home, and am routing grex (and m-net)
via static IP's I've got in Azure and home over that VPN tunnel. Exactly
why this is working without incident for some ssh clients and not others
I'm unsure, but that is the change that was made in the past week when
this started.


#220 of 223 by tod on Wed Nov 18 02:18:47 2020:

re #219
This is excellent - curious how that is setup.
I have a nat behind a nat at my office and want the pi there available
for sshd from home and elsewhere.  Not sure how to go about it.


#221 of 223 by tonster on Sat Dec 5 22:10:28 2020:

resp:220: What I did was created a vm at home to route the tunnel, and
established a strongswan tunnel between the two sites. I then created an
iptables rule to create a route to my network via the tunnel:

-A POSTROUTING -s 10.0.0.0/24 -d 192.168.0.0/20 -j MASQUERADE

and the opposite on the other end of the tunnel:

-A POSTROUTING -s 192.168.0.0/20 -d 10.0.0.0/24  -j MASQUERADE

For the Azure side, I also route the additional bound IP's over the
tunnel back home via:

-A PREROUTING -d 10.0.0.9/32 -j DNAT --to-destination 192.168.0.110
-A POSTROUTING -d 192.168.0.110/32 -j SNAT --to-source 10.0.0.9

strongswan starts on boot, and I've put the iptables rules in the
appropriate file for the OS (ubuntu/centos), so everything comes up on
boot and strongswan monitors the tunnel so it automatically restarts
should it drop. It ended up working out quite well, and it was much
easier to get it running than I'd expected.


#222 of 223 by tod on Sat Dec 12 05:40:45 2020:

re #221
Very tidy, indeed.  Thanks for the rundown!


#223 of 223 by kentn on Tue Feb 21 16:19:26 2023:

The machine grex is running on had more disk space added yesterday. That
took it offline and made it appear the SSH security info had changed.
It's back up now and everything should be back the way it was before the
changes.  Thanks go to Tony for keeping grex going.


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