stintel's blog

Remote logging to syslog-ng

To be able to keep some log history of my OpenWRT based router, I want to send it's output to a remote syslog server.

Fortunately I have another machine that is running 24/7, so I don't have to send it over the WAN link to one of my servers in the datacenter. My HTPC is running Gentoo Linux, and I configured syslog-ng as syslog daemon.

Now, by default, syslog-ng does not listen on the "Well Known" syslog port, so we have to configure it to do so. Start with adding a new source to syslog-ng.conf:

source syslog_udp {

We also need to configure a destination, a file in this case, where syslog-ng will write logging information received on the syslog port:

destination df_wrt0 {



Zimbra on CentOS 5.4

Some time ago I started to experiment with Zimbra a little bit. I already installed it a few times, and I heard many good things about the new release.

Because I ran into several issues with Debian and Ubuntu in the past, I decided to try Zimbra on CentOS. So I installed a clean CentOS 5.4 VM to test Zimbra on. I downloaded ZCS 6.0.3 for RHEL5, and then the fun started ...



Website performance issues

If you recently visited my website (let's say in the last two or three days), you might have noticed some performance issues. It seems I didn't pay that much attention to the MySQL binary logging configuration, when I enabled this feature so that I could do point-in-time recovery in case something goes wrong.

In /etc/mysql/my.cnf, I had these options related to binlogging:

log_bin = /var/log/mysql/mysql-bin.log
expire_logs_days = 10
max_binlog_size = 100M




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