Linux



1
Since the default version of ImageMagick installed by yum on CentOS 5.5 is  6.2.something, and you want to be able to do all the cool stuff that ImageMagick 6.5.* and 6.6.* can do, you’re gonna have to compile it from source yourself. Don’t worry – it’s easy, and it works.

How to Get ImageMagick 6.5.x or 6.6.x Working on CentOS ...


Linux Uptime 180
Update! RPMs and Yum now available. I build and maintain the RPM packages of OpenDKIM for RHEL/CentOS and Fedora, which are available with Yum. For a much quicker and easier way to install OpenDKIM, read this. Of course, if you still prefer to go old-skool and compile your own binaries […]

How to get DKIM (DomainKeys Identified Mail) working with Postfix ...





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One of my web servers sent me this email this morning: Subject: The certificate for ServerName.com has expired ################# SSL Certificate Warning ################ Certificate for hostname 'ServerName.com', in file (or by nickname): /etc/pki/tls/certs/server.crt The certificate needs to be renewed; this can be done using the 'genkey' program. Browsers will not […]

Renewing a Self-Signed SSL Certificate on Fedora/CentOS



13
I’m writing this in a VNC session from Windows 7, via a secure SSH tunnel over the Internet, to a remote Fedora 12 desktop (if you’re running Fedora 14, I’ve written a separate blog post about how to do that, too). If you’d like to be able to do the […]

Set up VNC from Windows to Fedora 12 Over the ...


I’ve got a Dell Studio 1737 laptop, on which I dual-boot Windows 7 and Fedora 12. But with the default  graphics drivers installed by FC12, I’d receive an Accelerated Graphics Not Available error message if I tried to enable System > Preferences > Desktop Effects. The solution was to do: […]

Enabling Desktop Effects on Fedora 12 with ATI Radeon HD ...




4
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 […]

Removing Old Kernels on Fedora, RHEL, or CentOS with Yum


5
For about a year now, we’ve been happily running two Dell PowerEdge 2950s with quad procs, 4GB of RAM (or so we thought), and RHEL5. Running a high-traffic website can be memory intensive, so we recently decided to upgrade the memory, and bought 8 more GB of RAM for each […]

Running more than 4GB RAM on Fedora, RHEL, & CentOS


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After successfully setting up a dual boot of Windows 7 (64-bit) and Fedora 12 on my new Dell Studio laptop, I wanted to record some of the tricks that were necessary to get it done. The laptop is a Dell Studio 1737 (why didn’t they call it 1337?) which came […]

Dual Boot Windows 7 and Fedora 12 Linux with Dell ...




I found this post from darkness very helpful when I moved from an older RHEL to CentOS 5.4 on a Dell PowerEdge 2650 server: http://darkness.codefu.org/wordpress/2006/09/22/247 Adding: i8042.dumbkbd=1 to the kernel command line (it’s in /boot/grub/grub.conf) worked exactly as advertised. Apart from the keyboard input being a bit slow, and not […]

Remote Access of a Dell PowerEdge 2650 and DRAC III ...