cmdln.org (a sysadmin blog)

Just a little tip, if your looking for bind stats and your chrooted

rndc stats

will give you

rndc: 'stats' failed: permission denied

All you have to do is

touch /var/named/chroot/var/named/named.stats
chown named:named /var/named/chroot/var/named/named.stats

Now after you run rndc stats your named.stats fill will be populated with information. (Read More)

Had a slightly vexing issue the other day. During a migration the destination host ended up caching some stale DNS entries. I tried a quick restart of nscd to no avail, rebooted the VM, again no joy. Even overriding the host in /etc/hosts wasn’t working. Took a few minutes of digging but what did work was

nscd -i hosts

. Just something to remember if you ever seem to have a stubborn caching issue, rebooting/restarting wont always solve the issue. (Read More)

IMHO one of the great benefits of virtualization is the ability to properly size your guests. Many times 512M memory and an 8G / is plenty. Increasing memory for a virtual machine is typically pretty straight forward, but there are several options when adding disk space. Mounting the space in the file system and doing something with LVM are likely the most common paths. (Read More)

No one likes to forget to renew a domain. Its not wholly uncommon though. Microsoft forgot to renew passport.com in 1999, and hotmail.co.uk in 2003. Vivendi Universal forgot to renew its MP3.com in 2003, the Washington Post forgot to renew in 2004, and Foursquare forgot to renew their domain in 2010. (Read More)

Nginx is a great little web server. I have posted previously about using it as a reverse proxy. Weather your using it as a reverse proxy or as a normal webserver you will probably eventually want to know what its doing over time so you can adjust resources as necessary. (Read More)