From the desk of » sysadmin

Mailman problems

konrad — Wed, 01 Sep 2010 12:57:38 +0000

For one of lists, one of the subscribers had the strangest problem. He kept getting bounces that the list alias does not even exist, whilst at the same time other subscribers could well write to that list. It turns out that his mail server was rewriting the To:-address, resolving the CNAME of the hostname that is responsible for running the lists. As we run a virtual-domain based mail server, this was not a smart choice: Whilst the email address does indeed exist on the CNAME-d host (lists.xiqit.de), it does not exist on the fully qualified name the server listens to. So we added an MX record for the hostname that also points to the ‘primary’ name of the server (the one which the RDNS also resolves to), and now all is well. HIs email does reach the list.

PowerDNS under MacOS X 10.6.4

konrad — Thu, 26 Aug 2010 22:02:04 +0000

Thanks to an entry on LSD::RELOAD I was finally able to get powerdns to run on my MacOS X 10.6.4 system.

Out of personal preference I wanted it to run with postgresql instead of mysql, so there was a little figuring out involved in how to get things going without the mysql driver — apparently, the make files only take one database backend and do not compile multiple drivers at the same time.

Also, secondary software omes from MacPorts, so paths had to be appropriately matched. And then, there was some hand-tweaking of Makefiles because -Bstatic, -Bdynamic and -lcrypt warrant special handling.

This leads to the following command line:

CXXFLAGS="-I/opt/local/include -DDARWIN" \ ./configure --with-pgsql-lib=/opt/local/lib/postgresql84 \ --with-pgsql-includes=/opt/local/include/postgresql84 \ --prefix=/usr/local --with-modules="gpgsql"

Ich mag shell …

konrad — Thu, 26 Feb 2009 10:06:44 +0000

for i in *.html; do mv $i {$i%.html}.php; done

Und schon sind alle HTML-Dateien PHP-Dateien. Ich mag Shell.

fcgid und http authentication

konrad — Mon, 12 Jan 2009 08:57:42 +0000

Dank everflux gelöst. Wenn man PHP mit fhcgid fährt und dann dabei auch noch http authentication machen möchte, muss man in der Konfigurations-Datei von apache einen Eintrag ergänzen. Bei uns steht jetzt in der Section noch Passheader Authorization.