December 2015: I just wanted to note that the solution below stopped working for me after a while. However I recently purchased a Synology NAS and configuring as a Time Machine backup destination is fairly easy. I just got a MacBook Air and had already read about how you can setup your own network based […]
Tag: Debian
Solving “IPv6 addrconf: prefix with wrong length 48” permanently
If you have a recent distribution of Linux, you might find the message “IPv6 addrconf: prefix with wrong length 48” repeated a lot in syslog. If you Google this error message you’ll quickly find that this is because IPv6 auto configuration (sort of like DHCP) is failing. Now if you don’t want to bother with […]
How to prevent cron & PowerDNS clogging syslog
On a default Debian installation both cron and PowerDNS will log into /varlog/syslog. If you are running very frequent cron jobs (like every 5 minutes) or an active PowerDNS server (or recursor), you’ll find syslog will be completely clogged with mostly unimportant messages. The solution of course, is to have these two services output log […]
How to enable TRIM for SSDs in Debian 6.0 “Squeeze”
Modern SSDs support the TRIM command for long-term sustained performance. However for TRIM to work right, the OS (and file system) must have support for it. In the case of Linux, you’ll need kernel version 2.6.33 or newer, use ext4 as file system and also tell the kernel to use TRIM using the “discard” mount […]