Reference

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 ...

This entry was posted in Linux Reference Technology and tagged 20209 CentOS CentOS 5 CentOS 5.5 DKIM dkim-filter dkim-milter dkim-proxy DomainKeys DomainKeys Identified Mail GoDaddy OpenDKIM opendkim-genkey opendkim-milter opendkim.conf Postfix RHEL RHEL 5 RHEL 5.5 Sender Policy Framework sendmail signed SPF on by (updated 3778 days ago)
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I ignored the early warning signs: the slow boots, the strange noises, the polite requests to insert the install DVD and run the disk utility. My main problem was that I’d lost my install DVD a long time ago. I had purchased my Mac Mini G4 1.5Ghz brand new in 2005, […]

Mac Mini G4 1.5Ghz Hard Drive and RAM Upgrade

This entry was posted in Mac Reference Technology and tagged 1.5Ghz Apple Store G4 hard drive upgrade Mac Mac Mini Mac Mini G4 RAM upgrade ugprade Mac Mini RAM upgrade Mac Mini hard drive on by (updated 4859 days ago)
If you’re having trouble activating your new AT&T iPhone 4, or if you got an error message when you tried to activate your AT&T iPhone using iTunes or on the AT&T website, don’t worry. Here are some easy instructions to activate it by phone.

How to Activate Your AT&T iPhone 4

This entry was posted in iPhone Reference Technology and tagged AT&T how to how to activate iPhone 4 iPhone iPhone 4 iPhone 4 activation problems activating iPhone 4 on by (updated 4881 days ago)
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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

This entry was posted in Linux Reference Technology and tagged CentOS certificate expired Fedora renew self-signed server.crt server.key SSL SSL Certificate Warning SSLCertificate on by (updated 3208 days ago)
81
With the insane prices map software companies are charging these days for replacement map DVDs (used in DVD-based nav units), it’s a smart idea to create a backup of your nav DVD in case of theft, loss, or damage. I’ve used the following method to back up the MDV-09D data […]

How to Backup your Navigation DVD/CD

This entry was posted in Cars Reference Technology and tagged backup Cadillac cd clone copy disc dvd GM nav nav cd nav disc nav dvd nav unit navigation navigation cd navigation disc navigation dvd NAVTEQ Toyota on by (updated 3595 days ago)
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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 ...

This entry was posted in Linux Reference Technology Windows and tagged Fedora Fedora 12 GNOME KDE PuTTY SecureCRT SSH tunneling TigerVNC VNC VNC Server vncserver vncservers Windows Windows to Fedora VNC on by (updated 4887 days ago)
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If you’re an “ultimate” geek running an “Ultimate” edition of Windows (such as Windows Vista Ultimate or Windows 7 Ultimate), but you want to upgrade or downgrade to Windows 7 Professional, Windows 7 Home Premium, or Windows 7 Home Basic, you’ve got a problem: the Windows 7 installer won’t allow […]

Upgrade (or Downgrade) Windows 7 Ultimate or Vista Ultimate to ...

This entry was posted in Reference Technology Windows and tagged Downgrade downgrade to lower version Hack MinClient=7077.0 MinClient=7233.0 Upgrade upgrade to lower version Windows 7 Windows 7 Professional Windows 7 Ultimate Windows Home Basic Windows Home Premium Windows Vista Ultimate on by (updated 3778 days ago)
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Officially, Microsoft says a direct migration from a Windows 2000 Server Domain Controller to Windows 2008 R2 (or even just regular Windows 2008) isn’t supported. But I just did it… in about an hour. You can, too!

Migrating an Active Directory Domain Controller from Windows 2000 to ...

This entry was posted in Reference Technology Windows and tagged Active Directory adprep adprep32 DC dcpromo dhcp server domain controller FSMO FSMO roles transfer migrate promote R2 transfer FSMO roles win2k Windows 2000 Windows 2008 windows 2008R2 Windows Server on by (updated 3778 days ago)
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To stay connected while I’m out of the office or travelling, I use a VPN connection from my laptop to a Windows Server. And while the benefit of being able to quickly and securely access my documents and other files on the server over any Internet connection is nice, the drawback is that all […]

Using the Local Default Gateway with a Windows VPN Connection

This entry was posted in Reference Technology Windows and tagged Internet local gateway remote gateway routing VPN Windows on by (updated 4859 days ago)
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 ...

This entry was posted in Linux Reference Technology and tagged 3d graphics accelerated graphics compiz cube desktop desktop effects Fedora Core 12 Linux window wobble on by (updated 4859 days ago)
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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

This entry was posted in Linux Reference Technology and tagged CentOS Fedora kernel Redhat remove old kernel RHEL yum on by (updated 3587 days ago)
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

This entry was posted in Linux Reference Technology and tagged 32-bit 4GB RAM 64-bit CentOS kernel-PAE PAE PAE kernel RHEL on by (updated 4859 days ago)
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In a cabinet in a top secret location somewhere in the Pacific Northwest, I’ve got two Dell PowerEdge 2950s, each with four 2GB DIMMs installed. I purchased four additional 4GB DIMMs to upgrade the memory in both to a total of 16GB, and installed them in the servers last night, so […]

Dell Warning: The current memory configuration is not optimal.

This entry was posted in Reference Technology and tagged 2950 Dell memory not optimal PowerEdge RAM warning on by (updated 4600 days ago)
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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 ...

This entry was posted in Linux Reference Technology Windows and tagged Dell dual boot FC 12 Fedora Fedora 12 Fedora Core 12 Win7 Windows 7 on by (updated 4859 days ago)
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 ...

This entry was posted in Linux Reference Technology on by (updated 4859 days ago)