Archive for the ‘Debian/Ubuntu Administration’ Category
Friday, December 18th, 2009
If you can't search the history with zsh in GNU screen, check if Ctrl-R is issued at all through your terminal, ie. by
$ cat
^R
If this works, append the following keybinding to your ~/.zshrc:
bindkey '^R' history-incremental-search-backward
(Source)
Posted in Debian/Ubuntu Administration, Tips | 1 Comment »
Sunday, August 16th, 2009
One important principle in software engineering is DRY - Don't Repeat Yourself. This can of course also be applied on tasks a system administrator has to do over and over again. One of this tasks for me was recently to have a working dovecot installation with sieve support.
Unfortunately the authors ...
Posted in Debian/Ubuntu Administration | No Comments »
Thursday, April 9th, 2009
If you get this error ssl_error_rx_record_too_long when browsing an SSL-secured virtual host and wonder what the heck is going on (hey, it worked the day before), ensure that you've noticed that your admins have changed the IP address of the machine and that you have to adapt the IP-based VHost ...
Posted in Debian/Ubuntu Administration, Tips, Work | No Comments »
Tuesday, January 13th, 2009
If you wonder why
$ php -r "setlocale(LC_TIME, 'de_DE.UTF-8'); echo strftime ('%A %e %B %Y', mktime (0, 0, 0, 12, 22, 1978));"
gives you Freitag 22 Dezember 1978 on most systems like f.e. openSuSE and Ubuntu, but Friday 22 December 1978 on Debian, you need to remember that the Debian guys ...
Posted in Debian/Ubuntu Administration, Tips | No Comments »
Monday, January 12th, 2009
If you follow this guide to setup your own CA and your certificate requests contain subjectAltNames (i.e. to match multiple virtual hosts with the same certificate), don't forget to add
copy_extensions = copy
under the [ CA_default ] section of the default openssl.cnf file. Took me a while to realize...
Happy signing!
Posted in Debian/Ubuntu Administration, Tips | No Comments »
Monday, November 17th, 2008
If you're having more than one computer where you look regularily for your emails (f.e. at home, at work and while you're on the way) and you get a reasonable amount of (non-spam) emails every day, you probably know the problem: Client-side email filters just don't do it.
Being a novice ...
Posted in Debian/Ubuntu Administration | No Comments »
Saturday, September 27th, 2008
...and you're a bloody novice like me, you'll probably stumble upon Marc Merlin's "Very detailled and featureful configuration example". If you use that one and you wonder why on earth people can't authenticate against your local SMTP via PAM, you seek hours and hours in different places, forums, IRC and ...
Posted in Debian/Ubuntu Administration, Tips | No Comments »
Saturday, September 20th, 2008
So I was about to SSL-secure my new webmail setup, created a new cert on CAcert, installed it, configured my vhost accordingly, went to the webmail login page and... boom. Login was not possible. No error message, no log message, nothing.
What happened?
To make a long story short, the PHP superglobal ...
Posted in Debian/Ubuntu Administration, Tips | 2 Comments »
Friday, September 19th, 2008
I finally got sick of my SuSE 9.3 V-Server when a good friend of mine pointed me to this really fancy and sexy IMAP web frontend called RoundCube last week. Written entirely in PHP 5 there was no real chance that I could get this easily working on my oldish ...
Posted in Debian/Ubuntu Administration, Work | No Comments »
