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Install testing kernels in Fedora

··465 words·3 mins
If you’re on the latest Fedora release, you’re already running lots of modern packages.


GRE tunnels with systemd-networkd

··868 words·5 mins
Switching to systemd-networkd for managing your networking interfaces makes things quite a bit simpler over standard networking scripts or NetworkManager.

Book Review: Linux Kernel Development

··760 words·4 mins
I picked up a copy of Robert Love’s book, Linux Kernel Development, earlier this year and I’ve worked my way through it over the past several weeks.

Keep old kernels with yum and dnf

··206 words·1 min
When you upgrade packages on Red Hat, CentOS and Fedora systems, the newer package replaces the older package.

Lessons learned from a kernel bisection

··494 words·3 mins
I’m far from being a kernel developer, but I found myself staring down a [peculiar touchpad problem][2] with my new Dell XPS 13.


Moving from OS X to Linux: Day One

··1418 words·7 mins
The thought of using Linux as a manager in a highly Windows- and Mac-centric corporate environment isn’t something to be taken lightly.

Installing the Xen hypervisor on Fedora 19

··596 words·3 mins
It’s been a little while since I last posted about installing Xen on Fedora, so I figured that Fedora 19’s beta release was as good a time as any to write a new post.



Tap into your Linux system with SystemTap

··641 words·4 mins
One of the most interesting topics I’ve seen so far during my RHCA training at Rackspace this week is SystemTap.

Keep web servers in sync with DRBD and OCFS2

··535 words·3 mins
The guide to redundant cloud hosting that I wrote recently will need some adjustments as I’ve fallen hard for the performance and reliability of DRBD and OCFS2.


Two great signals: SIGSTOP and SIGCONT

··278 words·2 mins
The best uses I’ve found for the SIGSTOP and SIGCONT signals are times when a process goes haywire, or when a script spawns too many processes at once.

Linux: Adjust storage kernel module load order

··528 words·3 mins
I set up a system at home that has two SATA controllers: one is on the motherboard (nvidia chipset), while the other is on a Silicon Image SATA card that has three eSATA ports.


Reduce disk I/O for small reads using memory

··353 words·2 mins
Many applications that are used on a standard server perform quite a few of small writes to the disk (like MySQL or Apache).