Many applications that are used on a standard server perform quite a few of small writes to the disk (like MySQL or Apache). These writes can pile up and limit the performance of your applications. If you have kernel 2.6.9 or later, you can adjust how these small writes are handled to allow [...]
Installing new hardware may mean that new kernel need to be loaded when your server boots up. There’s a two step process to making a new initrd file:
First, add the appropriate line to your /etc/modules.conf or /etc/modprobe.conf which corresponds to your new kernel module.
Next, rebuild the initial ram disk after making a backup of [...]
Last week, I found myself with a server under low load, but it couldn’t make or receive network connections. When I ran dmesg, I found the following line repeating over and over:
ip_conntrack: table full, dropping packet
I’d seen this message before, but I headed over to Red Hat’s site for more details. It turns [...]