Fedora

Linux Uptime 13
If you’re looking for the fastest and easiest way to get DMARC verification working on a RedHat (Fedora, RHEL or CentOS) mail server, I highly recommend OpenDMARC. I’m a bit biased, as I currently maintain the OpenDMARC package in the Fedora and EPEL repositories. This article will help you install the […]

Installing OpenDMARC RPM via Yum with Postfix or Sendmail (for ...

This entry was posted in Linux Reference Technology and tagged CentOS configure DKIM DMARC EPEL Fedora how to OpenDKIM OpenDMARC Redhat RHEL set up SPF on by (updated 3502 days ago)
Why doesn't it look different? 14
Here’s the scenario: you’ve set up Dynamically Allocated Storage for the hard drive on your Guest VM in VirtualBox and you’ve run out of space — even though your Actual Size is smaller than the Virtual Size (this happened to me recently when my Virtual Size was 10 GB, and […]

Resize a Fedora, CentOS, or Windows Dynamic Guest Virtual Disk ...

This entry was posted in Linux Reference Technology Windows and tagged CentOS dynamically allocated Fedora LVM partition resize resize VDI VDI virtual disk VirtualBox Windows on by (updated 2818 days ago)
Upgrade from Fedora 17 to 18 with FedUp 1
Fedora 18 (codename Spherical Cow) was officially released today, and there’s a mad scramble to figure out how to upgrade to this latest Linux desktop from Fedora 17. Previously, you’d have to either do a fresh install with a CD or DVD, or you could use the built-in PreUpgrade method. […]

Upgrade from Fedora 17 to Fedora 18 with FedUp

This entry was posted in Linux Reference Technology and tagged Fedora Fedora 17 Fedora 17 to 18 Fedora 18 fedora upgrade 17 to 18 fedup FedUp Install Linux PreUpgrade update Upgrade on by (updated 4327 days ago)
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I often say there are only two types of data: data that is backed up, and data that is waiting to be lost. Even if you’re the most contentious hax0r who always backs up your data, if your backups are stored in the same physical location as the source data, […]

How to Back Up a Linux Server to Amazon S3 ...

This entry was posted in Linux Reference Technology and tagged Amazon Amazon backup Amazon S3 AutoMYSQLBackup backup backup to s3 CentOS Duplicity Fedora Linux off-site RHEL S3 s3 backup server on by (updated 4472 days ago)
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This is one of those blog posts that’s more written for my own benefit to refer to later than for the benefit of the Web-at-large, but if someone else happens to stumble upon it and it helps you out, then cool. 🙂 I had to migrate a Fedora box (the […]

How to set up two NICs on different subnets with ...

This entry was posted in Linux Reference Technology and tagged CentOS default gateway default route dual NICs eth0 eth1 Fedora ifcfg-eth0 ip route add ip rule add NIC persist policy routing table reboot remain route-eth0 rt_tables static route subnet on by (updated 3802 days ago)
DKIM Test Message 145
For those who want or need to compile and install OpenDKIM from the source code, you can follow the instructions I wrote in this article. If you’re looking for the fastest and easiest way to get OpenDKIM running on a RedHat or CentOS system, I currently maintain the OpenDKIM package in […]

Installing OpenDKIM RPM via Yum with Postfix or Sendmail (for ...

This entry was posted in Linux Reference Technology and tagged CentOS DKIM dkim-filter dkim-milter dkim-proxy Fedora Linux OpenDKIM opendkim-genkey opendkim-milter opendkim.conf Postfix RHEL rpm sendmail yum yum opendkim on by (updated 3198 days ago)
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This is another one of those articles I write mainly so I can reference it later to help me remember how I got something working, but if it helps someone else trying to get Amavis, ClamAV, and SpamAssassin working with Postfix on Fedora, then great!

Tips for installing Amavis-new, ClamAV, and SpamAssassin using Postfix on ...

This entry was posted in Linux Reference Technology and tagged Amavis-new ClamAV Fedora Fedora 12 Fedora Core 12 Postfix SPAM SpamAssassin on by (updated 4916 days ago)
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You don’t need a Windows Media Center PC to share pictures, videos, or music with an Xbox 360. If you’ve got a Fedora / RHEL/ CentOS box on your home network and you’d like to use it as a UPnP and DLNA Media Server so that you can stream files […]

How to set up uShare media server on Fedora / ...

This entry was posted in Linux Reference and tagged audio CentOS DLNA Fedora GeeXboX libupnp Linux media server media sharing pictures PlayStation 3 PS3 RHEL streaming UPnP uShare video Xbox Xbox 360 on by (updated 3802 days ago)
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Installing the VNC server in Fedora 14 is a little bit different than I described it for Fedora 12, so here are some updated instructions for setting up VNC in Fedora 14 and connecting to it via Windows over the Internet.

How to Set Up VNC from Windows to Fedora 14 ...

This entry was posted in Linux Reference Technology and tagged Fedora Fedora 14 GNOME KDE PuTTY SecureCRT SSH tunneling TigerVNC VNC VNC Server vncserver vncservers Windows Windows to Fedora VNC on by (updated 3802 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 3423 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 5102 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 3802 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 5073 days ago)