Stuff…

The cacti RRA files that were being update by the crontab:
/usr/bin/php /usr/share/cacti/poller.php
stopped working for some reason.  No permissions had changed, but, the disk did fill up at one start.  It was thought that perhaps some of the RRA files had been corrupted, however, running rrdtool info and fetch on the files they worked fine.
It turned [...]

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Thought this article was pretty cool for a finals project:
http://www.smh.com.au/technology/sci-tech/offtheshelf-expedition-takes-flight-20091014-gw6o.html
The idea was to launch my system into the stratosphere to an altitude of about 100,000 feet (30,480 metres) using a weather balloon. At that altitude, it could take pictures (hopefully) showing the blackness of space above and the curvature of the Earth below.
Bit of an [...]

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If you get the following error (“CHECK_NRPE: Error – Could not complete SSL handshake.“) when trying to connect to a remote NRPE (nagios) setup you should check on the NRPE machine that check_nrpe client IP is in the list.
ie. allowed_hosts=127.0.0.1,YOUR_OTHER_IP
In the /etc/nagios/nrpe.cfg configuration file.

CHECK_NRPE: Error – Could not complete SSL handshake.

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For some reason the mail log was showing lots of:
Sep 23 09:40:03 hostname qmail: 1253695203.637058 alert: cannot start: unable to open mutex
Sep 23 10:32:16 hostname qmail: 1253698336.515510 alert: cannot start: unable to open mutex
Sep 23 10:32:21 hostname qmail: 1253698341.425333 alert: cannot start: unable to open mutex
and qmail was not working properly.
It turns out that for [...]

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Bounce message received:
A message that you sent could not be delivered to one or more of its
recipients. This is a permanent error. The following address(es) failed:
user@fromaddress.com
Malformed SMTP reply from mail.server.com [192168.1.1]
in response to initial connection:
rblsmtpd: 192.168.6.62 pid 14483: 451 Sender has sent to LashBack
Unsubscribe Probe accounts:
retry timeout exceeded
Looking further into this it appears that the [...]

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