Written by Another quick tidbit I learned when one of my CentOS boxes was slow to connect via SSH. Connection happened quickly when I would connect from a box on the same router, but connecting from my home machine caused a delay of 20-30 seconds each time. The fix was uncommenting this line in /etc/ssh/sshd_config: #UseDNS yes [...]
READ MORE »Posts tagged Redhat
Building Postfix 2.8 on RHEL5 / CentOS 5 from Source
CentOS 5 (a non-commercial clone of RedHat’s RHEL 5) is my server operating system of choice because it’s extremely stable and widely-used. One of the reasons it’s so stable is because the built-in software packages (and the software updates from the standard repositories) are generally (although there are always exceptions) older, more widely tested, patched, [...]
READ MORE »Set up VNC on RHEL 5.5 / CentOS 5.5
Earlier this year, I wrote a blog post detailing how to set up VNC on a Fedora 12 Box and connect to it from a Windows VNC client securely over the Internet. The original article is here. The steps to setting up VNC on RHEL 5.5 and CentOS 5.5 are very similar, with one important [...]
READ MORE »Removing Old Kernels on Fedora, RHEL, or CentOS with Yum
I recently noticed that my /boot partition was at 95% full, so I investigated to see what was causing it. Apparently, it was filling up with older versions of the linux kernel as a result of upgrades. Because my system has been very stable, I decided to keep only the current version of the kernel [...]
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