I haven’t really spent that much time configuring nscd, so I thought I would take a crack at it this morning while sipping my cup of joe. Looking at one of my production hosts, I queried for the “host” cache statistics. This is the nscd cache which keeps DNS lookups. With the nscd daemon running, [...]
Archive for 'Linux Misc'
I have been replacing some old hardware over the past few months, and recently noticed that we had several machines with uptimes in the hundreds of days (one 800+ days). For the longest time I thought only Solaris and AIX provided this kind of stability, but over the past few years I’ve started to include [...]
Reading through my RSS feeds, I came across the following blog post describing one Linux administrator using tune2fs to disable the “please run fsck on this file system after X days or Y mounts.” I’ve got to admit, this is kind of annoying. I’ve taken production critical Linux boxes down for some maintenance, only to [...]
I just found out the folks in the CentOS community have a planet feed! If you are interested in keeping up to date with all things CentOS, you should add their feed to your RSS reader.
One feature I really liked in Solaris 10 was SMF. It provides a framework using services manifests on the system to automatically respawn services should they die off. It handles dependencies, restarts, and a single unified command set to configure the system using svcs, svccfg, and svcadm. Linux looks like they’ve started to integrate some [...]
I had to install some software last night on one of my 64-bit CentOS Linux hosts, and noticed that glibc was listed twice in my rpm query: $ rpm -q -a | grep glibc-2.5-34 glibc-2.5-34 glibc-2.5-34 At first I thought my RPM package database was borked, but then it dawned on me that there are [...]