Viewing entries tagged with 'fail'

A major fuckup on part of spamhaus!

Posted by Ralf Hildebrandt on 4 May 2012 | 0 Comments

Tags: ,

A major fuckup on part of spamhaus: http://www.spamhaus.org/sbl/query/SBL138067

The evidence section listed "inetnum: 95.218.0.0 - 95.219.255.255", yet spamhaus listed 93.218.0.0/15 (first octet 93 instead of 95)!

0 comments | Read the full post

X-Forwarded-For: unknown considered harmful

Posted by Ralf Hildebrandt on 4 May 2012 | 0 Comments

Tags: , , ,

Recently a colleague and I wanted to submit a few FP to the ClamAV project. So we went to http://cgi.clamav.net/sendfp.cgi just to find an "Under Maintenance"-page. So we tried a few days later, just to find the same page.

So I asked on the clamav-users mailinglist and found out that the page was in fact working. Just not for us. Oh well. So I asked their admin to look into their varnish logs. He wouldn't do that.

Today, I dug deeper and found this:

Their server doesn't like the "X-Forwarded-For: unknown" header!
(see http://www.squid-cache.org/Doc/config/forwarded_for/)

On our squids it was set to:
forwarded_for off
which results in a
X-Forwarded-For: unknown
header - and a subsequent error page from varnish. Setting it to "delete", "on" or "truncate" makes the page http://cgi.clamav.net/sendfp.cgi work
again. 

Only "off" causes the page to fail.

0 comments | Read the full post

New fail2ban rules for postscreen

Posted by Ralf Hildebrandt on 2 June 2011 | 0 Comments

Tags: , ,

fail2ban doesn't work properly with the new postscreen log entries, since those are different from the ones smtpd is generating.

0 comments | Read the full post

Nokia Deppen II

Posted by Ralf Hildebrandt on 30 May 2011 | 0 Comments

Tags: , ,

Heute kam Peter mit seinem Handy rum, und wollte Eduroam konfiguriert haben.

0 comments | Read the full post

Handyvertrag

Posted by Ralf Hildebrandt on 30 May 2011 | 0 Comments

Tags: , , ,

Ich habe gestern eine Analyse von Constanzes Handyverhalten gemacht und festgestellt, daß wir mit einem Wechsel des Anbieters von 40,- pro Monat auf 10,- Monat fallen UND eine Internet-Flat dazukriegen. Die, Congstar, die!

0 comments | Read the full post

Nokia Deppen

Posted by Ralf Hildebrandt on 29 May 2011 | 0 Comments

Tags: , ,

Der Hirnboy-Preis der Woche geht an: Nokia, für Nokia Maps. Bzw. die geniale Idee, eine Map via WLAN herunterladen zu können, um sie später offline nutzen zu können.

0 comments | Read the full post

CNAME and other data

Posted by Ralf Hildebrandt on 21 March 2011 | 0 Comments

Tags: , , ,

 

0 comments | Read the full post

Postfix on ZFS woes

Posted by Ralf Hildebrandt on 19 February 2011 | 0 Comments

Tags: , ,

See this bugreport by Mark Martinec:

0 comments | Read the full post

Microcode update?

Posted by Ralf Hildebrandt on 6 February 2011 | 1 Comments

Tags: , , , ,

Did you know that you could update the microcode on (some) Intel CPUs?

1 comments | Read the full post

smf-sav milter vs. postfix-2.8.x

Posted by Ralf Hildebrandt on 26 January 2011 | 0 Comments

Tags: , , ,

Some people seem to use the smf-sav milter to implement sender address verification in Sendmail.

0 comments | Read the full post

1 2 3