Posts

2021-06-06 A new future for icanhazip
2021-05-15 Efficient emojis with rofimoji
2021-04-22 Free resources for the stock market
2021-03-17 Selling options made simpler
2021-03-15 Monitor a UPS with a Raspberry Pi Zero W
2021-02-10 Defending losing options trades
2021-01-24 Which stock broker should you use?
2021-01-23 Choosing options to sell
2021-01-04 Lessons learned from selling puts
2020-12-09 Know your max loss
2020-12-07 The Dark Side: Selling Options
2020-12-06 Options trading introduction
2020-06-19 Build AWS images with Image Builder
2020-06-11 My experience with keto so far
2020-02-13 Make diacritics easy in Linux
2020-01-30 My Travel Guide to Brno
2020-01-24 Disable Nvidia GPU on the Thinkpad T490
2019-12-16 Bring Back Fedora's Beefy Miracle boot splash
2019-12-12 Thinkpad T490 Fedora install tips
2019-11-18 Monitoring OpenShift cron jobs
2019-11-08 Monitor CyberPower UPS wattage
2019-10-20 Install Chromium with VAAPI on Fedora 30
2019-09-22 Customize GNOME from i3
2019-09-11 Deploy monit in OpenShift
2019-08-16 Get faster GitLab runners with a ramdisk
2019-08-13 buildah error: vfs driver does not support overlay.mountopt options
2019-08-07 Fedora 30 on Google Compute Engine
2019-06-02 Texas Linux Fest 2019 Recap
2019-05-24 Build containers in GitLab CI with buildah
2019-04-05 Inspecting OpenShift cgroups from inside the pod
2019-03-22 Running Ansible in OpenShift with arbitrary UIDs
2019-03-19 Get a /56 from Spectrum using wide-dhcpv6
2019-03-17 Pixel 3 Wi-Fi drops constantly
2019-03-04 Stop audio pops on Intel HD Audio
2019-02-08 Automatic floating windows in i3
2019-01-31 DevConf.CZ 2019 Recap
2019-01-27 Using the pressure stall information interface in kernel 4.20
2019-01-14 Running Home Assistant in a Docker container with a Z-Wave USB stick
2019-01-04 Allow a port range with firewalld
2018-12-18 Disable autoplay for videos in Firefox 65
2018-12-13 Getting started with ham radio repeaters
2018-12-06 Use a secret as an environment variable in OpenShift deployments
2018-09-06 Make alt-arrow keys work with terminator and weechat
2018-05-09 How to thrive at a technical conference
2018-03-07 Reaching the fork in the road
2018-02-28 Install testing kernels in Fedora
2018-01-06 Takeaways from my foray into amateur radio
2017-12-15 Ensuring keepalived starts after the network is ready
2017-11-02 Changes in RHEL 7 Security Technical Implementation Guide Version 1, Release 3
2017-09-20 Import RPM repository GPG keys from other keyservers temporarily
2017-08-02 Thunderbird changes fonts in some messages, not all
2017-07-25 Troubleshooting CyberPower PowerPanel issues in Linux
2017-07-21 Apply the STIG to even more operating systems with ansible-hardening
2017-07-18 Customize LDAP autocompletion format in Thunderbird
2017-06-27 Old role, new name: ansible-hardening
2017-05-24 Enable AppArmor on a Debian Jessie cloud image
2017-05-18 Fixing OpenStack noVNC consoles that ignore keyboard input
2017-05-12 OpenStack Summit Boston 2017 Recap
2017-04-13 OpenStack-Ansible networking on CentOS 7 with systemd-networkd
2017-04-05 RHEL 7 STIG v1 updates for openstack-ansible-security
2017-03-22 Takeaways from Bruce Schneier’s talk: “Security and Privacy in a Hyper-connected World”
2017-03-21 Five reasons why I’m excited about POWER9
2017-03-20 IBM Interconnect 2017 first day keynote recap
2017-03-10 Reflecting on 10 years of (mostly) technical blogging
2017-02-24 OpenStack isn’t dead. It’s boring. That’s a good thing.
2017-02-23 What I’m looking forward to at IBM Interconnect 2017
2017-01-15 systemd-networkd on Ubuntu 16.04 LTS (Xenial)
2017-01-11 ICC color profile for Lenovo ThinkPad X1 Carbon 4th generation
2017-01-05 Display auditd messages with journalctl
2017-01-03 augenrules fails with “rule exists” when loading rules into auditd
2016-11-04 OpenPOWER Summit Europe 2016 Recap
2016-10-31 Talk Recap: Holistic Security for OpenStack Clouds
2016-10-11 Why should students learn to write code?
2016-09-30 What’s Happening in OpenStack-Ansible (WHOA) – September 2016
2016-09-22 Power 8 to the people
2016-09-21 IBM Edge 2016: Day 2 Recap
2016-09-20 IBM Edge 2016: Day 1 Recap
2016-09-14 Getting ready for IBM Edge 2016
2016-09-13 HTTP/2 for the blog and icanhazip.com
2016-08-23 What’s Happening in OpenStack-Ansible (WHOA) – August 2016
2016-08-09 Preventing critical services from deploying on the same OpenStack host
2016-08-03 OpenStack instances come online with multiple network ports attached
2016-07-22 Setting up a telnet handler for OpenStack Zuul CI jobs in GNOME 3
2016-07-22 What’s Happening in OpenStack-Ansible (WHOA) – July 2016
2016-07-19 Join me on Thursday to talk about OpenStack LBaaS and security hardening
2016-07-06 Bring back two and three finger taps in Fedora 24
2016-06-29 Talk recap: The friendship of OpenStack and Ansible
2016-06-26 My list of must-see sessions at Red Hat Summit 2016
2016-06-16 New SELinux shirts are available
2016-06-15 What’s Happening in OpenStack-Ansible (WHOA) – June 2016
2016-05-27 Automated security hardening with Ansible: May updates
2016-05-25 Test Fedora 24 Beta in an OpenStack cloud
2016-05-17 Troubleshooting OpenStack network connectivity
2016-05-11 Getting started with gertty
2016-05-05 Preventing Ubuntu 16.04 from starting daemons when a package is installed
2016-05-03 802.1x with NetworkManager using nmcli
2016-04-26 Talk Recap: Automated security hardening with OpenStack-Ansible
2016-04-22 Lessons learned: Five years of colocation
2016-04-21 OpenStack Summit in Austin is almost here!
2016-04-20 Thunderbird opens multiple windows
2016-04-17 Enable IPv6 privacy in NetworkManager
2016-03-31 Automated Let’s Encrypt DNS challenges with Rackspace Cloud DNS
2016-03-11 Mouse cursor disappears in GNOME 3
2016-02-26 Recovering deleted Chrome bookmarks on Linux
2016-02-17 Fight cynicism with curiosity
2016-02-09 Segmentation faults with sphinx and pyenv
2016-01-28 Enabling kwallet after accidentally disabling it
2016-01-20 Tinkering with systemd’s predictable network names
2016-01-18 Updating Dell PowerEdge BIOS from Linux
2016-01-15 Nobody is using your software project. Now what?
2015-12-04 supernova 2.2.0 is available
2015-11-28 Custom keyboard shortcuts for Evolution in GNOME
2015-11-10 Talking to college students about information security
2015-10-26 systemd-networkd and macvlan interfaces
2015-10-16 GRE tunnels with systemd-networkd
2015-10-14 What I learned while securing Ubuntu
2015-09-29 Customizing systemd’s network device names
2015-09-28 First thoughts: Linux on the Supermicro 5028D-TN4T
2015-09-18 systemd in Fedora 22: Failed to restart service: Access Denied
2015-09-11 Time Warner Road Runner, Linux, and large IPv6 subnets
2015-09-11 supernova is coming to Fedora repositories
2015-09-10 Chronicles of SELinux: Dealing with web content in unusual directories
2015-09-02 Impostor syndrome talk: FAQs and follow-ups
2015-08-28 Build a high performance KVM hypervisor on Rackspace’s OnMetal servers
2015-08-27 Build a network router and firewall with Fedora 22 and systemd-networkd
2015-08-22 Slides from my Texas Linux Fest 2015 talk
2015-08-21 Understanding systemd’s predictable network device names
2015-08-21 Using systemd-networkd with bonding on Rackspace’s OnMetal servers
2015-08-14 Research Paper: Securing Linux Containers
2015-08-14 Fedora Flock 2015: Keynote slides
2015-08-07 Review: JayBird BlueBuds X Sport Bluetooth Headphones
2015-08-06 Less than a week until Fedora Flock 2015
2015-08-05 Automated testing for Ansible CIS playbook on RHEL/CentOS 6
2015-08-03 Live migration failures with KVM and libvirt
2015-07-27 Very slow ssh logins on Fedora 22
2015-07-19 Restoring wireless and Bluetooth state after reboot in Fedora 22
2015-07-18 Making things more super with supernova 2.0
2015-07-17 Aruba access points, EAP, and wpa_supplicant 2.4 bugs
2015-07-06 Allow new windows to steal focus in GNOME 3
2015-07-01 Stumbling into the world of 4K displays [UPDATED]
2015-06-23 Fedora 22 and rotating GNOME wallpaper with systemd timers
2015-06-21 Book Review: Linux Kernel Development
2015-06-18 Improving LXC template security
2015-06-11 Time for a new GPG key
2015-06-10 Chrome 43 stuck in HiDPI mode
2015-06-09 cups.service start operation timed out in Fedora 22
2015-06-08 PulseAudio popping with multiple sounds in Fedora 22
2015-06-05 Upatre and icanhazip
2015-05-27 Adventures with GRE and IPSec on Mikrotik routers
2015-05-27 Xen 4.5 crashes during boot on Fedora 22
2015-05-20 You have a problem and icanhazip.com isn’t one of them
2015-05-18 Keep old kernels with yum and dnf
2015-05-12 Automatic package updates with dnf
2015-05-08 Tweetdeck’s Chrome notifications stopped working
2015-05-01 HOWTO: Mikrotik OpenVPN server
2015-04-15 Rackspace::Solve Atlanta Session Recap: “The New Normal”
2015-04-14 Woot! Eight years of my blog
2015-04-11 Run virsh and access libvirt as a regular user
2015-03-30 Review: Lenovo X1 Carbon 3rd generation and Linux
2015-03-30 Share a wireless connection via ethernet in GNOME 3.14
2015-03-26 Creating a bridge for virtual machines using systemd-networkd
2015-03-24 Test Fedora 22 at Rackspace with Ansible
2015-03-16 Xerox ColorQube 9302 and Linux
2015-02-20 Using play/pause buttons in Chrome with GNOME 3
2015-02-11 Rotate GNOME 3’s wallpaper with systemd user units and timers
2015-02-09 Lessons learned from a kernel bisection
2015-02-08 Using ZoneMinder with a Logitech C270 webcam
2015-02-03 Linux support for the Dell XPS 13 9343 (2015 model)
2015-01-08 Helpful, low-FUD information security sites, mailing lists, and blogs
2014-12-29 Two months with Google Play Music All Access
2014-12-18 Eight years at Rackspace
2014-12-17 Try out LXC with an Ansible playbook
2014-12-12 Install sysstat on Fedora 21
2014-12-05 Send weechat notifications via Pushover
2014-11-24 Trust an IP address with firewalld’s rich rules
2014-11-19 A response to Infoworld’s confusing article about Fedora
2014-10-03 Test Fedora 21 at Rackspace with Ansible
2014-10-02 Xen’s XSA-108 patch and Fedora
2014-09-28 Apache’s mod_proxy, mod_ssl, and BitTorrent Sync
2014-09-11 HOWTO: Time Warner Cable and IPv6
2014-08-22 Asus Maximus VI Gene – Error 55
2014-08-19 Audit RHEL/CentOS 6 security benchmarks with ansible
2014-08-13 Start Jenkins on Fedora 20
2014-08-13 httpry 0.1.8 available for RHEL and CentOS 7
2014-08-08 Quickly post gists to GitHub Enterprise and github.com
2014-08-07 icanhazip.com blocked by Websense
2014-08-06 Unexpected predictable network naming with systemd
2014-07-30 Play/pause button stopped working in OS X Mavericks
2014-07-29 Adventures in live booting Linux distributions
2014-07-24 X11 forwarding request failed on channel 0
2014-07-22 Etsy reminds us that information security is an active process
2014-07-21 icanhazip and CORS
2014-07-03 AVC: denied dyntransition from sshd
2014-06-26 Install Debian packages without starting daemons
2014-06-25 Get colorful ansible output in Jenkins
2014-06-22 Performance benchmarks: KVM vs. Xen
2014-06-20 Getting Dell’s racadm working in Fedora 20
2014-06-20 Fixing broken DNS lookups in spamassassin
2014-06-03 Configure remote syslog for XenServer via the command line
2014-05-27 Enjoy supernova 1.0.0
2014-05-24 Evade the Breach
2014-05-20 Switching to systemd on Debian jessie
2014-05-18 Text missing in chrome on Linux
2014-05-14 Thanks to TrueAbility for featuring me on their blog!
2014-05-05 Testing grouped environment support for supernova
2014-05-01 Small update for supernova 0.9.6
2014-04-30 Helpful Linux I/O stack diagram
2014-04-29 supernova 0.9.5 is available
2014-04-23 Configure static IP addresses for Project Atomic’s KVM image
2014-04-22 Launch secure LXC containers on Fedora 20 using SELinux and sVirt
2014-04-17 DevOps and enterprise inertia
2014-04-10 Upgrade OpenSSL, then upgrade WordPress
2014-04-08 openssl heartbleed updates for Fedora 19 and 20
2014-04-03 Detect proxies with icanhazproxy
2014-03-27 Xen hackathon coming up in London
2014-03-26 Docker, trusted builds, and Fedora 20
2014-03-18 Show originating IP address in Apple Mail
2014-03-10 Annoying security requests highlight company silos
2014-03-06 virt-manager: ‘NoneType’ object has no attribute ‘cpus’
2014-02-28 Installing Xen on Fedora 20
2014-02-22 icanhaz more domains: icanhazepoch.com
2014-02-22 MySQLTuner v1.3.0
2014-02-10 Puppy Linux, icanhazip, and tin foil hats
2014-02-05 Be an inspiration, not an impostor
2014-02-03 Hierarchy of DevOps Needs from DevOps Weekly
2014-01-13 supernova 0.9.0 is now available
2014-01-08 CentOS and Red Hat join forces
2014-01-07 nf_conntrack: table full, dropping packet
2013-12-10 Learn octal file permissions easily with stat
2013-11-17 Information security nuggets from DevOps Weekly #150
2013-11-13 One year in information security
2013-11-03 Speed up your Fedora PXE installations by hosting the stage2 installer locally
2013-10-22 Guide to securing apache
2013-10-15 I’m on the hunt for experienced security analysts!
2013-09-25 Thanks to ISACA’s San Antonio chapter!
2013-09-23 One month using a Linux laptop at work: Back to the Mac
2013-09-20 Keeping bwm-ng 0.6 functional on Fedora 19
2013-09-17 This is why we can’t have nice things: malware callbacks to icanhazip.com
2013-09-17 Need an edge at work? Learn accounting and finance.
2013-08-27 Moving from OS X to Linux: Day One
2013-08-24 Get a rock-solid Linux touchpad configuration for the Lenovo X1 Carbon
2013-08-02 drbd 8.4.3 package on the way for Fedora 19
2013-07-23 PXE boot Fedora 19 using a Mikrotik firewall
2013-07-18 Come and get your SELinux shirts!
2013-07-10 A humble farewell to Seth Vidal
2013-07-07 Boot VM’s with virt-manager and libvirt with ISO’s stored remotely via samba/cifs
2013-07-05 Confine untrusted users (including your children) with SELinux
2013-06-19 My interview on the Dave and Gunnar Show
2013-06-15 Red Hat Summit 2013 Recap
2013-06-03 Supermicro X9SCI/X9SCA server does a shutdown rather than a reboot
2013-06-03 Installing the Xen hypervisor on Fedora 19
2013-05-29 Presentation: Demystifying SELinux
2013-05-22 Migrate KVM virtual machines from CentOS 6 to Fedora 18 without the luxury of shared storage
2013-05-22 Handling terminal color escape sequences in less
2013-05-15 Changing your ssh server’s port from the default: Is it worth it?
2013-04-26 Automate CentOS 6 deployments with CIS Security Benchmarks already applied
2013-04-26 Limit access to the su command
2013-04-19 Reprint: Stop Disabling SELinux!
2013-04-16 Seriously, stop disabling SELinux
2013-04-15 Remove sensitive information from email headers with postfix
2013-03-31 drbd 8.4.2 for Fedora 17
2013-03-20 virt-manager won’t release the mouse when using ssh forwarding from OS X
2013-03-20 Late night virtualization frustration with kvm
2013-03-17 Survive the Google Reader exodus with Tiny Tiny RSS
2013-03-17 New icanhaz features: reverse DNS and traceroutes
2013-03-15 drbd 8.4.2 for Fedora 18
2013-03-11 Thoughts on RSA Conference 2013
2013-03-03 Controlling sensitive company data means losing some control of it
2013-02-23 More upgrades for icanhazip.com
2013-02-22 Six years of rackerhacker.com
2013-02-08 Quick access to OpenPGP tasks with GPGTools in OS X
2013-01-13 What my toddler taught me about information security
2013-01-08 Fixing the Lenovo X1 Carbon’s washed out display
2012-12-28 Handy settings for the touchpad/clickpad in the Lenovo X1 Carbon
2012-12-27 Launch applications quickly with dmenu in XFCE
2012-11-26 Reaching a new milestone and making some big changes
2012-11-25 Relocating a python virtual environment
2012-11-20 Fixing finicky Bluetooth on the Samsung Galaxy S III
2012-11-04 Log Android events remotely to a syslog server
2012-10-24 Using git clean to remove subdirectories containing git repositories
2012-10-21 Lenovo ThinkPad T430s review
2012-10-18 Proud to be a part of OpenStack at Rackspace
2012-10-12 Going back to Linux as a desktop
2012-09-21 Automatic package updates in CentOS 6
2012-09-07 One week with Android
2012-08-15 See you at LinuxCon North America 2012!
2012-08-06 Monitoring and protecting your reputation online
2012-08-05 Privacy and icanhazip.com
2012-08-01 Building vpnc with openssl support via MacPorts on Mac OS X
2012-07-22 DNS Service Review: Luadns
2012-07-18 Connecting to OpenStack Swift with Cyberduck using swauth
2012-07-16 Boot the Xen hypervisor by default in Fedora 17 with GRUB 2
2012-07-15 Mounting an LVM snapshot containing partitions
2012-07-14 X forwarding over ssh woes: DISPLAY is not set
2012-07-10 SELinux, Xen, and block devices in Fedora 17
2012-06-29 Red Hat Summit 2012: Thursday
2012-06-28 Red Hat Summit 2012: Wednesday
2012-06-27 First day of the Red Hat Summit
2012-06-26 Off to the 2012 Red Hat Summit
2012-06-13 Great guide for using traceroute and understanding its results
2012-06-11 What installing a ceiling fan can teach you about administering servers
2012-06-08 Keep tabs on OpenStack development with OpenStack Watch on Twitter
2012-06-05 supernova: Manage multiple OpenStack nova environments with ease
2012-06-04 Fedora 17 XVA ready to import into XenServer
2012-05-31 Lessons learned in the ambulance pay dividends in the datacenter
2012-05-30 Fedora 17 released, XenServer kickstarts updated
2012-05-25 Fedora 17 is a go!
2012-05-11 Lesser-known but extremely handy Linux tools
2012-04-18 Performance and redundancy boost for icanhazip.com
2012-04-09 Getting a Technical Job at Rackspace
2012-03-30 Why technical people should blog (but don’t)
2012-03-29 mysql-json-bridge: a simple JSON API for MySQL
2012-03-15 Compare commits between two git branches
2012-03-14 New Fedora and EPEL package: httpry
2012-03-12 Installing XenServer 6.0.2 on an AOpen MP57
2012-03-11 The StartupBus stops at Rackspace
2012-03-10 Handy hints for using dtrace on the Mac
2012-02-28 Preparing for Red Hat Exams
2012-02-14 Five years of rackerhacker.com
2012-02-13 Looking back at the long road to becoming a Red Hat Certified Architect
2012-02-12 Installing Fedora 16 in XenServer
2012-02-07 Using OpenSSL’s s_client command with web servers using Server Name Indication (SNI)
2012-02-05 The Kerberos-hater’s guide to installing Kerberos
2012-02-04 Get notifications instead of automatic updates in Scientific Linux
2012-02-03 Kerberos for haters
2012-02-01 OpenStack bleeding-edge Python packages are now available
2012-02-01 Create a local PyPi repository using only mod_rewrite
2012-01-26 Getting started with SELinux
2012-01-16 XenServer 6: Storage repository on software RAID
2012-01-13 XenServer 6: Disable GPT and get a larger root partition
2012-01-12 Fight SOPA & PIPA
2012-01-11 Native IPv6 connectivity in Mikrotik’s RouterOS
2012-01-02 SELinux and .forward files
2011-12-16 Getting online with a CradlePoint PHS-300 and an AT&T USBConnect Mercury
2011-11-23 Automatically upgrading to new point releases of Scientific Linux
2011-11-17 DisplayLink USB to DVI issues in OS X Lion
2011-11-15 Live upgrade Fedora 15 to Fedora 16 using yum
2011-11-07 Tracing a build through OpenStack Compute (Nova)
2011-09-30 Installing irssi via MacPorts on OS X Lion 10.7.1
2011-09-25 Getting back to using eth0 in Fedora 15
2011-09-16 Receive e-mail reports for SELinux AVC denials
2011-09-08 Getting apache, PHP, and memcached working with SELinux
2011-09-02 You might see me on CNN Money soon
2011-08-26 How to write e-mails to nerds (that they will actually read)
2011-08-22 Contest winners from the “Inspire a sysadmin” contest
2011-08-17 Inspire a sysadmin, get a ThinkGeek gift certificate
2011-08-16 Highlight IP addresses with a double click in Firefox
2011-08-08 Xen Summit 2011: My Takeways
2011-08-06 Xen 4.1 on Fedora 15 with Linux 3.0
2011-07-22 Success with stress
2011-06-16 Keep all old kernels when upgrading via yum
2011-06-05 Measure traffic flows with Mikrotik’s RouterOS and ntop on Fedora 15
2011-05-25 Handy networking cheat sheets from Packet Life
2011-05-03 Do your homework before a technical interview
2011-04-16 MySQLTuner mentioned at the O’Reilly MySQL Conference
2011-03-30 Lifehacker effect on icanhazip.com
2011-03-29 How to survive as a technical manager
2011-03-10 Strategies for detecting a compromised Linux server
2011-02-14 Dual-primary DRBD with OCFS2
2011-01-30 FUDCon 2011: Day One
2011-01-29 Gearing up for FUDCon 2011
2011-01-26 Single boot Linux on an Intel Mac Mini
2011-01-15 icanhazip.com now supports both IPv4 and IPv6 addresses
2011-01-11 Sending binary e-mail attachments from the command line with mutt
2011-01-10 Strategies for storing backups
2011-01-07 One RHCA exam down, five to go
2011-01-06 Using GNU sort to sort a list by IP address
2010-12-15 Mounting a raw partition file made with dd or dd_rescue in Linux
2010-12-09 Locate RPM packages which contain a certain file
2010-12-08 Tap into your Linux system with SystemTap
2010-12-03 Keep web servers in sync with DRBD and OCFS2
2010-11-25 Happy Thanksgiving
2010-11-24 Monitor MySQL restore progress with pv
2010-11-17 Throwing thoughtful “403 Forbidden” responses with apache
2010-11-16 Accessing Rackspace Cloud Servers and Slicehost slices privately via OpenVPN
2010-11-14 400th post: Looking back at where this blog started
2010-11-13 Raising money for prostate cancer research and survivor support
2010-11-10 Switching from GlusterFS to DRBD and OCFS2
2010-11-03 Upgrading Fedora 13 to Fedora 14 on Slicehost and Rackspace Cloud Servers
2010-10-16 Do professional certifications belong in your e-mail signature?
2010-10-12 Securing your ssh server
2010-09-10 Installing Xen 4 on Fedora 13
2010-08-25 A nerd’s perspective on cloud hosting
2010-08-13 Very unscientific GlusterFS benchmarks
2010-08-11 One month with GlusterFS in production
2010-07-26 Adding comments to iptables rules
2010-07-14 Version 2.0 has arrived
2010-06-27 A modern implementation and explanation of Linux Virtual Server (LVS)
2010-06-17 Reincarnation of Twitter’s realtime XMPP search term tracking with ruby
2010-06-14 Parsing mdadm output with paste
2010-05-28 GlusterFS on the cheap with Rackspace’s Cloud Servers or Slicehost
2010-05-27 How to sell: a guide for technical people
2010-05-20 Idiot’s guide to OAuth logins for Twitter
2010-05-14 Legacy tty1 and block device support for Xen guests with pvops kernels
2010-05-05 Taking a posting break
2010-04-29 Xen Summit: Day One Highlights
2010-04-12 Best practices: iptables
2010-03-26 Adjusting tty’s in Fedora 13 with upstart
2010-03-26 Why I’m a Racker
2010-03-20 Testing network throughput with iperf
2010-03-18 SIGTERM vs. SIGKILL
2010-03-09 Rackspace Cloud Tech Podcast Episode 2
2010-03-04 Sticky shift key with synergy in Fedora 12
2010-03-02 Private network interfaces: the forgotten security hole
2010-02-28 System Administration Inspiration: If it’s broken, break it a little more
2010-02-16 MySQL: The total number of locks exceeds the lock table size
2010-02-14 WordPress + W3 Total Cache + MaxCDN How-To
2010-01-29 MySQL: The total number of locks exceeds the lock table size
2010-01-21 Switching between audible and visual bells in screen
2010-01-20 Crash course in dsh
2010-01-07 Change the escape keystrokes in screen
2010-01-04 A New Year System Administrator Inspiration
2009-12-21 WordPress and PHP 5.3.x: update_comment_type_cache() expected to be a reference
2009-12-21 Upgraded to WordPress 2.9
2009-12-15 Parse kernel.org changelogs with wget and grep
2009-12-08 Upgrading Fedora 11 to 12 using yum
2009-12-03 Disable acceleration for Apple’s Magic Mouse
2009-11-17 Automatically loading iptables rules on Debian/Ubuntu
2009-11-17 Upgraded to WordPress 2.8.6 with some theme changes
2009-11-03 Changing the time zone in irssi
2009-10-15 Please help! Found a lost dog – New Braunfels, TX
2009-09-19 Twitter direct message notifications with Prowl
2009-08-28 Fix MacFusion on Snow Leopard
2009-08-14 Fedora 11 httpd: alloc_listener: failed to get a socket for (null)
2009-08-07 Installing the mysql gem in Fedora 11 64-bit
2009-08-04 Graphical representation of Cisco’s BGP issues this morning
2009-07-31 Get the public-facing IP for any server with icanhazip.com
2009-07-31 Requiring SSL encryption for WordPress administration
2009-07-29 Upgraded WordPress to 2.8.2
2009-06-26 Rotating rails logs when using Phusion Passenger
2009-06-19 Deleting all e-mail messages in your inbox with mutt
2009-06-15 Two great signals: SIGSTOP and SIGCONT
2009-06-13 Ugly upgrade path from WordPress 2.7.1 to 2.8
2009-06-11 Upgrading from Fedora 10 (Cambridge) to Fedora 11 (Leonidas)
2009-05-26 Simple SOCKS proxy using SSH
2009-05-05 Comparing MySQL result sets quickly
2009-04-23 Re-scan the SCSI bus in Linux after hot-swapping a drive
2009-04-21 Piping log files to a syslog server
2009-04-04 PHPMyAdmin 3.x hides the table indexes
2009-03-25 Enabling VNC as a pseudo-KVM with VMWare Server
2009-03-10 Compare the RPM packages installed on two different servers
2009-02-27 Prevent gnome-keyring from asking for a password when NetworkManager starts
2009-02-25 A new customer service blog: dontbeafraidofcustomers.com
2009-02-24 Boxcheck v2.0 is on the way
2009-02-18 Upgrade Debian etch to lenny
2009-02-05 New Linux security advisory Twitter bots
2009-01-30 Linux: emergency reboot or shutdown with magic commands
2009-01-26 Linux: Adjust storage kernel module load order
2009-01-09 Writing a Ruby on Rails application without using a database
2009-01-02 CPAN: Automatically install dependencies without confirmation
2008-12-26 Upgraded to WordPress 2.7
2008-12-04 Reducing inode and dentry caches to keep OOM killer at bay
2008-12-03 Simple server monitoring with xinetd
2008-12-02 MySQLTuner 1.0.0 is now available
2008-12-02 Upgraded to WordPress 2.6.5
2008-11-07 Importing Excel files into MySQL with PHP
2008-11-06 Plesk: Upgrade to 8.4 causes “no such user” error in maillog
2008-11-06 Viewing documentation for your ruby gems
2008-11-04 What is ‘steal time’ in my sysstat output?
2008-11-02 Syncing an iPhone with a new Mac without hassles
2008-10-24 Installing Microsoft’s TrueType fonts on Linux servers
2008-10-13 ext3_dx_add_entry: Directory index full!
2008-09-25 Working hard on PleskHacker
2008-09-24 Apache 2.2: internal dummy connection
2008-09-20 New look
2008-09-19 Compress your web content for better performance
2008-09-15 Thanks for making RackerHacker so popular!
2008-09-10 Upgraded to WordPress 2.6.2
2008-09-08 SquirrelMail: 127 Can’t execute command
2008-09-08 MySQLTuner 0.9.9 is now available
2008-09-05 Listing of VMWare configuration parameters
2008-09-03 CentOS/RHEL x86_64 + VMWare: Use of uninitialized value in string
2008-09-02 Encrypted filesystems and partitions on RHEL 5
2008-08-31 Upgraded to WordPress 2.6.1
2008-08-13 Basic procmail configuration with spamassassin filtering
2008-08-12 Congratulations to RAX
2008-08-12 Enabling Ruby on Rails support for a domain in Plesk
2008-08-07 Reduce disk I/O for small reads using memory
2008-07-30 Automatically starting synergy in GDM in Ubuntu/Fedora
2008-07-28 Plesk 8.4.0: Unable to use short names for POP3/IMAP
2008-07-22 First post using the WordPress iPhone application
2008-07-21 MySQLTuner 0.9.8 is now available
2008-07-15 Calling all creative types: I need a slogan
2008-07-15 WordPress 2.6
2008-07-15 Enabling all tests with Nessus
2008-06-27 MySQLTuner is now a Fedora 9 package!
2008-06-24 MySQL: ERROR 1040: Too many connections
2008-06-22 MySQLTuner 0.9.1 available for Mandriva users
2008-06-20 Rebuilding statistics from previous months on Plesk 8.3
2008-06-19 Why I interviewed at Google and stayed at Rackspace
2008-06-19 MySQLTuner v0.9.1 is now available
2008-06-18 Remove backticks from MySQL dumps
2008-06-17 Why I use Plesk
2008-06-16 Adjusting CPAN mirror list
2008-06-13 HP Servers: hwraidinfo and hwraidstatus in Linux
2008-06-12 Screencast topic requests?
2008-06-11 MySQL: Can’t drop one or more of the requested users
2008-06-06 Backing up MySQL to Amazon’s S3
2008-05-29 MySQLTuner is the Debian Package of the Day!
2008-05-20 Parallels Summit 2008 – Day 1
2008-05-08 Taking a short posting break
2008-05-02 Forcing qmail to process e-mail in the queue
2008-05-01 After Plesk upgrade, “Cannot initialize InnoDB”
2008-04-30 Proposed MySQL DBA Screencasts
2008-04-29 Best PHP and MySQL development book
2008-04-29 Upgraded to WordPress 2.5.1
2008-04-24 Hosting the politicians
2008-04-23 Plesk: Disabling TRACE/TRACK methods globally
2008-04-16 Reducing locking delays in MySQL
2008-04-14 mchk: Unable to initialize quota settings for someuser@somedomain.com
2008-04-06 MySQLTuner v0.9.0 is now available
2008-04-05 MySQLTuner v0.8.9 is now available
2008-04-02 Small Companies: How to hire and fire a technical person
2008-03-24 Setting the maximum mail size in qmail
2008-03-21 Importing MySQL dumps made on 64-bit servers
2008-03-14 Reduce iowait in Plesk: put qmail’s queue on a ramdisk
2008-03-13 Plesk Professional Website Editor hangs at login
2008-03-12 What is the difference between file data and metadata?
2008-03-11 Hunting down elusive sources of iowait
2008-03-11 Strange error with Horde 3.1.3 and Plesk 8.1.1
2008-02-27 MySQLTuner v0.8.6 is now available
2008-02-20 ntpd_initres: ntpd returns a permission denied error
2008-02-20 MySQLTuner now has a mailing list
2008-02-18 sendmail: savemail panic
2008-02-11 MySQLTuner v0.8.5 is now available
2008-02-06 WordPress upgraded to 2.3.3
2008-02-05 Taking a couple of weeks off
2008-02-01 MySQLTuner v0.8.0 is now available
2008-01-31 High iowait on RHEL 4 with Plesk and SpamAssassin
2008-01-30 Plesk and MySQL 5
2008-01-29 Limiting which commands are kept in the bash history file
2008-01-28 Rebuilding the initial ram disk (initrd)
2008-01-25 Can’t enable DNSBL/RBL in Plesk because it’s greyed out
2008-01-25 MySQLTuner reaches 5,000 downloads!
2008-01-24 ip_conntrack: table full, dropping packet
2008-01-23 qmail: This message is looping: it already has my Delivered-To line
2008-01-22 Dovecot: libsepol.so.1: failed to map segment from shared object: Cannot allocate memory
2008-01-21 Removing news feeds in Horde
2008-01-16 MySQLTuner Revision 29 is now available
2008-01-15 MySQL Replication: Wrap-up
2008-01-15 MySQLTuner Revision 26 is now available
2008-01-14 MySQL Replication: Slave Performance
2008-01-11 MySQL Replication: Upgrading the MySQL server
2008-01-10 MySQL Replication: Across an external network
2008-01-09 MySQL Replication: Breakdown
2008-01-09 MySQL Replication: Delayed Slaves
2008-01-08 MySQLTuner is now a Debian package
2008-01-07 MySQL Replication: Horizontal Data Partitioning
2008-01-04 MySQL Replication: Backups & Data Integrity
2008-01-04 MySQL Replication: Redundancy
2008-01-02 MySQL Replication: Performance
2008-01-01 MySQL Replication: A series of posts
2008-01-01 Have a great 2008
2007-12-31 Seven Step MySQL Replication
2007-12-18 Taking a little time off
2007-12-06 Why you should use caching for WordPress blogs
2007-12-05 Red Hat Support EOL Dates
2007-12-04 Plesk and qmail: 421 temporary envelope failure (#4.3.0)
2007-12-03 MySQLTuner Revision 22 is now available
2007-11-30 MySQLTuner is now a Mandriva Linux package!
2007-11-29 Table ‘mysql.proc’ doesn’t exist
2007-11-28 Fixing Horde problems in Plesk 8.1.x/8.2.x with PHP 5.2.5
2007-11-27 Sort e-mail in Plesk with procmail
2007-11-26 Adding SSL encryption to vsftpd
2007-11-23 Happy Thanksgiving
2007-11-20 EXT3-fs error (device hda3) in start_transaction: Journal has aborted
2007-11-19 Red Hat Perl Issues: unable to call function somefunction on undefined value
2007-11-16 clamdscan: corrupt or unknown clamd scanner error or memory/resource/perms problem
2007-11-15 Change the default Apache character set
2007-11-14 Plesk authorization failed: HTTP request error [7]
2007-11-14 Rackspace Outage
2007-11-07 OpenSSL Tricks
2007-11-06 MySQLTuner Revision 20 is available
2007-11-04 Attractive aterm/rxvt .Xdefaults configuration
2007-11-03 A short vacation
2007-10-17 Enforcing mode requested but no policy loaded. Halting now.
2007-10-17 Installing package groups with up2date
2007-10-16 MySQLTuner Revision 19 is available
2007-10-12 Enabling Dr. Web virus scanning for new accounts
2007-10-12 mysqldump: Got packet bigger than ‘max_allowed_packet’ bytes
2007-10-10 BIND: ‘RRset exists (value dependent)’ prerequisite not satisfied (NXRRSET)
2007-10-10 Dovecot: mbox: Can’t create root IMAP folder
2007-10-09 Plesk: Error opening /var/lib/squirrelmail/prefs/default_pref
2007-10-05 Slow Horde login process with Plesk
2007-10-04 Preventing Plesk 8.2.x from adding up2date sources
2007-10-04 Convert MyISAM tables to InnoDB
2007-10-03 Plesk: There is incorrect combination of resource records in the zone
2007-10-02 Plesk 7.5.4: Error: HTTPD_INCLUDE_D not defined
2007-09-28 Parsing HTML through PHP in Plesk
2007-09-28 Session problems with Horde in Plesk with AOL
2007-09-26 Counting open files per user
2007-09-26 A week’s vacation
2007-09-18 Boxcheck.com improvements
2007-09-18 Adjusting postfix queue time / lifetime
2007-09-17 Yum equivalents of up2date arguments
2007-09-15 Testing SpamAssassin with GTUBE
2007-09-14 Check the modulus of an SSL certificate and key with openssl
2007-09-12 Slow IMAP and POP3 performance with large mailboxes on RHEL 2.1
2007-09-12 RHEL limitations cheat sheet
2007-09-10 Getting GrowlMail working with Apple Mail in Growl 1.1
2007-09-08 Hunting down annoying web spiders
2007-09-07 MySQL binary log rotation
2007-09-07 MySQLTuner minor update
2007-09-06 Low priority Plesk backups
2007-09-04 Happy Labor Day
2007-09-02 MySQL and InnoDB: Orphaned .frm files
2007-08-31 Postfix: 554 Relay access denied
2007-08-29 Apache: Disable TRACE and TRACK methods
2007-08-28 Use a different IP for sending mail
2007-08-25 DB function failed with error number 1033
2007-08-24 Apache: No space left on device: Couldn’t create accept lock
2007-08-24 MySQL couldn’t find log file
2007-08-23 POP3 server disconnects immediately after login
2007-08-22 Qmail-smtpd spawns many processes and uses 100% of CPU
2007-08-21 Change Plesk back to short mail names
2007-08-20 MySQL: Errcode: 24 when using LOCK TABLES
2007-08-18 Issues with mysqldump and views in Plesk
2007-08-16 MySQL unauthenticated login pile-up
2007-08-15 It’s on Digg: Automated MySQL Performance Tuning Script
2007-08-12 Huge MySQLTuner overhaul
2007-08-11 Using wildcard subdomains in Plesk
2007-08-11 Correcting Horde problems after upgrading to PHP 5 on Plesk 7.5.x
2007-08-10 Urchin: Unable to open database for writing since it has been archived
2007-08-09 MySQL’s query cache explained
2007-08-09 Reset the Urchin admin password
2007-08-09 Urchin: Warning! Task scheduler disabled.
2007-08-09 Adding IP aliases in FreeBSD
2007-08-09 MySQL: Missing *.ibd files
2007-08-09 WordPress 2.2.2
2007-08-03 Obscure MySQL variable explained: max_seeks_for_key
2007-08-03 Add custom rules to the Plesk firewall
2007-08-03 Generate self-signed certificate and key in one line
2007-08-03 Plesk: Unable to make action: Unable to manage service by dnsmng: dnsmng: Service named failed to start
2007-08-03 Freeing up file descriptors in Plesk 8.2 with piped Apache logs
2007-08-03 Big updates for mysqltuner
2007-08-01 Kernel Panic: Unable to find volume group “VolGroup00”; Kernel panic – not syncing: Attempted to kill init!
2007-08-01 Kernel Panic: Unexpected soft update inconsistency; run fsck manually
2007-08-01 EXT3-fs error: ext3_check_descriptors / group descriptors corrupted
2007-08-01 Kernel panic: No init found. Try passing init= option to kernel
2007-07-30 Add spam filtering for all users in Plesk
2007-07-18 Disable X support in FreeBSD
2007-07-18 Installing Lighttpd + PHP + FastCGI on FreeBSD
2007-07-18 Upgrading FreeBSD remotely
2007-07-18 Importing existing keys and certificates into java keystore files
2007-07-06 /bin/tar: Argument list too long
2007-07-06 Automatic Plesk login
2007-07-05 Enable submission port 587 in Postfix
2007-07-01 Check available entropy in Linux
2007-07-01 Active FTP connections through iptables
2007-07-01 Redirect e-mails in postfix based on subject line
2007-07-01 Repair auto_increment in MySQL
2007-07-01 Enable SSL support in Postfix
2007-07-01 MySQL time zone different from system time zone
2007-07-01 Plesk and PHPMyAdmin: Non-static method PMA_Config::isHttps() should not be called statically
2007-06-30 Remove all open_basedir restrictions in Plesk
2007-06-27 Basic SNMP Configuration
2007-06-19 Sub-par DNS stuff at DNSStuff
2007-06-19 Corrupt /dev/null
2007-06-14 500 OOPS error from vsftpd
2007-06-14 Adjusting qmail queue time / lifetime
2007-06-14 Adjusting sendmail queue time / lifetime
2007-06-14 PHP CLI memory limit is different between users and root
2007-06-14 Send Plesk e-mail to /dev/null or blackhole
2007-06-14 Rebuild RPM file permissions and ownerships
2007-06-07 Replace Urchin license key / serial number
2007-06-07 Postgres process listing
2007-06-07 FreeBSD: Limiting closed port RST response
2007-06-01 Arrow keys in iTerm not working in vi/vim
2007-05-28 Cisco PIX: Cannot select private key
2007-05-27 Install snort and BASE on FreeBSD
2007-05-27 Install mysql-server from ports on FreeBSD
2007-05-27 Errors with ifup regarding MAC addresses
2007-05-27 Forward e-mail sent to non-existent users in Postfix
2007-05-27 rpmdb: Lock table is out of available locker entries
2007-05-23 Remove PHP’s open_basedir restriction in Plesk
2007-05-22 Changing the default SSL certificate in Plesk
2007-05-21 Enable submission port 587 in Sendmail
2007-05-21 Postgresql not listening on network
2007-05-21 Speeding up MySQL
2007-05-21 MySQL connections in sleep state
2007-05-21 Joomla and Plesk permissions
2007-05-18 Remove query strings from URL’s with mod_rewrite
2007-05-18 Relay access denied
2007-05-17 Show hidden dot files in proftpd
2007-05-17 Add SSL/TLS support to proftpd
2007-05-15 Plesk submission port (587) for outbound mail
2007-05-07 Horde refreshes when logging in
2007-04-27 Plesk SQL Statements
2007-04-27 Adding chrooted FTP users outside of Plesk
2007-04-26 Install PayFlowPro for PHP on RHEL
2007-04-24 Add SPF records to all domains in Plesk
2007-04-19 Can’t find file: ‘horde_sessionhandler.MYI’
2007-04-19 Too many languages – can’t upgrade Plesk license
2007-04-17 Telnet POP3 Commands
2007-04-17 SSL connection to a non-secure port
2007-04-12 Disable SSH timeouts
2007-04-10 Pre-upgrade Plesk Backup
2007-04-08 Disable SSLv2 in Lighttpd
2007-04-08 WordPress permalinks in Lighttpd
2007-04-07 Plesk Database Schematic
2007-04-06 Lighttpd proxy to Tomcat
2007-04-05 Disable reverse lookups with qmail in Plesk
2007-03-29 451 Could not complete sender verify callout
2007-03-27 Setting the hostname in Sendmail
2007-03-26 /bin/rm: Argument list too long
2007-03-26 Reset MySQL root password
2007-03-23 Apache’s mysterious trailing slash
2007-03-23 Adjust max_execution_time for Horde in Plesk
2007-03-23 Exporting SSL certificates from Windows to Linux
2007-03-21 Forcing HTTPS (SSL) with mod_rewrite
2007-03-21 Forcing HTTPS with PHP
2007-03-18 AWStats icons don’t appear in Plesk 8.1
2007-03-12 Redhat ES DST Links
2007-03-12 Quick and fancy mail blacklist checking
2007-03-06 Finding compromised scripts
2007-03-05 Stopping Double Bounces in Plesk
2007-02-28 Change Primary IP Address in Plesk
2007-02-27 Disabling SSLv2 in Plesk
2007-02-27 Disable Dr. Web Notifications in Plesk
2007-02-23 Hide Apache Version
2007-02-23 New DST changes for 2007
2007-02-21 ProFTPD shows incorrect GMT time with Plesk
2007-02-14 Chmod and the mysterious first octet
2007-02-14 Understanding LVM
2007-02-12 Measuring raw shell bandwidth
2007-02-12 Bulk IP update in Plesk
2007-02-12 Move domain between clients in Plesk
2007-02-10 Finding compromised mail accounts in Plesk
2007-02-09 Delete single iptables rules
2007-02-08 Enabling SSL in ProFTPD
2007-02-08 Rewrite for certain IP addresses
2007-02-07 Fighting DDOS attacks in Linux
2007-02-07 Getting the SMTP Auth ID with Plesk
2007-02-06 Cisco Logging to RHEL
2007-02-01 Get Plesk e-mail addresses and passwords
2007-01-31 Treason Uncloaked
2007-01-31 Wave the Plesk magic wand
2007-01-29 Make Apache logs mimic IIS
2007-01-27 Moving mail between some Plesk servers
2007-01-26 Enabling CGI in Apache virtual hosts
2007-01-26 Finding usernames and passwords in Plesk DB
2007-01-24 Increase MySQL connection limit
2007-01-24 Verify that SSLv2 is disabled
2007-01-24 Plesk admin user can’t login
2007-01-24 Can’t upload large files in PHP
2007-01-24 Argument list too long
2007-01-15 Strip off www from URLs with mod_rewrite
2007-01-15 Sum Apache Bandwidth From Logs
2007-01-11 Repairing the qmail queue
2007-01-05 Securing MySQL
2007-01-05 MySQL Row & Data Limits
2006-12-31 About Sticky Bits
2006-12-29 Can’t Kill Sendmail Processes
2006-12-29 Fedora/RHEL/Centos Won’t Init
2006-12-27 PHPLive Has No session.save_path
2006-12-27 Raising MaxClients? Change ServerLimit.
2006-12-27 Rootkit Checks on RHEL
2006-12-27 Group Editing With FTP
2006-12-27 Fixing Invalid HELO’s
2006-12-27 Postfix – Forwarding Virtual Mailboxes

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