Jul 28Mount virtual media on Supermicro IPMI with less java#fedora #hardware #ipmi #linux #supermicro
Sep 23Monitor system and GPU performance with Performance Co-Pilot#fedora #linux #monitoring #gpu #performance
Sep 19Automatic container updates with Podman quadlets#containers #podman #fedora #linux #quadlet #systemd
Oct 13How I learned to stop worrying and love the CoreOS#containers #coreos #docker #fedora #linux #podman
Sep 25Quadlets might make me finally stop using docker-compose#containers #coreos #docker #fedora #linux #podman #wordpress
May 31Launch a watchtower container via podman quadlets#containers #coreos #fedora #podman #quadlet #security #watchtower
Jan 04Automatic container updates with watchtower#containers #coreos #docker #fedora #linux #security
Oct 27Build a Tailscale exit node with firewalld#centos #cloud #firewalld #linux #networking #rhel #tailscale
Apr 20Basic authentication with Traefik on kubernetes#flux #gitops #kubernetes #linux #security #traefik
Nov 16Deploy a custom Fedora 35 AMI to AWS with Image Builder#amazon #aws #cloud #imagebuilder #fedora #linux
Oct 30Secure Tailscale networks with firewalld#fedora #firewalld #linux #networking #security #tailscale
Aug 20Set network interface speed with systemd-networkd#fedora #linux #networking #systemd #systemd-networkd
Aug 16Wildcard LetsEncrypt certificates with Traefik and Cloudflare#certificates #containers #docker #letsencrypt #traefik #tls
Aug 06Build Fedora AWS images in GitHub Actions with Image Builder#aws #cloud #fedora #github #imagebuilder #linux
Aug 13buildah error: vfs driver does not support overlay.mountopt options#buildah #containers #fedora #gitlab #linux #podman
Jan 14Running Home Assistant in a Docker container with a Z-Wave USB stick#docker #homeassistant #fedora #security
Dec 06Use a secret as an environment variable in OpenShift deployments#openshift #containers #security
Mar 07Reaching the fork in the road#cloud #fedora #impostor syndrome #openstack #presentations #rackspace
Dec 15Ensuring keepalived starts after the network is ready#ansible #centos #fedora #linux #networking #networking #openstack #systemd
Nov 02Changes in RHEL 7 Security Technical Implementation Guide Version 1, Release 3#ansible #centos #debian #fedora #information security #openstack #opensuse #python #red hat #security #suse #ubuntu
Sep 20Import RPM repository GPG keys from other keyservers temporarily#ansible #centos #fedora #openstack #rpm
Jul 21Apply the STIG to even more operating systems with ansible-hardening#ansible #debian #fedora #linux #opensuse #security #suse
Jul 18Customize LDAP autocompletion format in Thunderbird#email #javascript #ldap #linux #thunderbird
May 24Enable AppArmor on a Debian Jessie cloud image#ansible #apparmor #debian #linux #openstack #security
May 18Fixing OpenStack noVNC consoles that ignore keyboard input#kvm #networking #openstack #python #vnc
Apr 13OpenStack-Ansible networking on CentOS 7 with systemd-networkd#ansible #linux #networking #openstack #systemd #vlan
Apr 05RHEL 7 STIG v1 updates for openstack-ansible-security#ansible #centos #linux #openstack #python #red hat #security
Feb 24OpenStack isn’t dead. It’s boring. That’s a good thing.#cloud #development #openstack #servers #virtualization
Jan 15systemd-networkd on Ubuntu 16.04 LTS (Xenial)#networking #openstack #systemd #systemd-networkd #ubuntu
Jan 11ICC color profile for Lenovo ThinkPad X1 Carbon 4th generation#fedora #gnome #hardware #linux #thinkpad
Jan 03augenrules fails with “rule exists” when loading rules into auditd#ansible #auditd #centos #fedora #information security #openstack #rhel #security
Oct 31Talk Recap: Holistic Security for OpenStack Clouds#networking #networking #openstack #presentations #security
Aug 09Preventing critical services from deploying on the same OpenStack host#database #fedora #advice #openstack #python
Aug 03OpenStack instances come online with multiple network ports attached#kvm #networking #networking #openstack #python #virtualization
Jul 22Setting up a telnet handler for OpenStack Zuul CI jobs in GNOME 3#fedora #gnome #linux #networking #openstack
Jun 29Talk recap: The friendship of OpenStack and Ansible#ansible #fedora #advice #openstack #python #rackspace #red hat
May 17Troubleshooting OpenStack network connectivity#advice #networking #networking #openstack #security #troubleshooting
May 05Preventing Ubuntu 16.04 from starting daemons when a package is installed#security #systemd #ubuntu
Apr 26Talk Recap: Automated security hardening with OpenStack-Ansible#ansible #openstack #security #ubuntu #virtualization
Apr 22Lessons learned: Five years of colocation#colocation #advice #hardware #hosting #linux #networking #servers
Mar 31Automated Let’s Encrypt DNS challenges with Rackspace Cloud DNS#ansible #bash #development #dns #networking #python #security #ssl #web
Jan 20Tinkering with systemd’s predictable network names#command line #fedora #hardware #networking #supermicro #systemd #systemd-networkd #udev
Nov 28Custom keyboard shortcuts for Evolution in GNOME#email #evolution #fedora #gnome #keyboard #mail
Nov 10Talking to college students about information security#advice #information security #presentations #security
Oct 26systemd-networkd and macvlan interfaces#fedora #kvm #macvlan #networking #security #virtualization
Oct 16GRE tunnels with systemd-networkd#command line #fedora #firewalld #kernel #networking #systemd #systemd-networkd
Oct 14What I learned while securing Ubuntu#ansible #apparmor #debian #fedora #openstack #security #selinux #ubuntu
Sep 28First thoughts: Linux on the Supermicro 5028D-TN4T#fedora #linux #networking #supermicro #systemd
Sep 11Time Warner Road Runner, Linux, and large IPv6 subnets#fedora #firewall #ipv6 #router #security
Sep 10Chronicles of SELinux: Dealing with web content in unusual directories#centos #command line #fedora #rhel #security #selinux #web
Aug 27Build a network router and firewall with Fedora 22 and systemd-networkd#fedora #firewall #networking #security #systemd
Aug 21Understanding systemd’s predictable network device names#centos #command line #fedora #linux #networking #systemd #udev
Aug 14Research Paper: Securing Linux Containers#centos #containers #docker #fedora #giac #information security #kubernetes #linux #lxc #networking #red hat #sans #security
Aug 05Automated testing for Ansible CIS playbook on RHEL/CentOS 6#ansible #centos #development #rhel #security
Jul 19Restoring wireless and Bluetooth state after reboot in Fedora 22#bluetooth #fedora #networking #networkmanager #thinkpad #wireless
Jun 18Improving LXC template security#centos #containers #development #fedora #lxc #red hat #security #ubuntu
May 27Adventures with GRE and IPSec on Mikrotik routers#advice #ipsec #mikrotik #networking #security
Mar 30Share a wireless connection via ethernet in GNOME 3.14#fedora #gnome #linux #networking #networkmanager
Mar 26Creating a bridge for virtual machines using systemd-networkd#centos #fedora #networking #red hat #systemd
Feb 11Rotate GNOME 3’s wallpaper with systemd user units and timers#bash #fedora #gnome #script #systemd
Jan 08Helpful, low-FUD information security sites, mailing lists, and blogs#blog #advice #security #sysadmin
Dec 17Try out LXC with an Ansible playbook#ansible #command line #containers #fedora #linux #lxc #virtualization
Nov 24Trust an IP address with firewalld’s rich rules#fedora #firewall #networking #red hat #security
Aug 06Unexpected predictable network naming with systemd#centos #debian #fedora #networking #red hat #systemd
Jul 29Adventures in live booting Linux distributions#arch #centos #debian #development #fedora #filesystem #live #networking #opensuse #red hat #squashfs #sysadmin #ubuntu
Jun 20Fixing broken DNS lookups in spamassassin#dns #fedora #mail #perl #postfix #selinux #spamassassin
Jun 03Configure remote syslog for XenServer via the command line#security #sysadmin #syslog #xen #xenserver
Apr 23Configure static IP addresses for Project Atomic’s KVM image#docker #fedora #networking #sysadmin #virtualization
Apr 22Launch secure LXC containers on Fedora 20 using SELinux and sVirt#centos #containers #fedora #lxc #red hat #rhel #security #selinux #virtualization
Mar 26Docker, trusted builds, and Fedora 20#containers #docker #fedora #icanhazip #linux #lxc #virtualization #web
Mar 06virt-manager: ‘NoneType’ object has no attribute ‘cpus’#fedora #python #rpm #virt-manager #virtualization #xen
Nov 03Speed up your Fedora PXE installations by hosting the stage2 installer locally#fedora #networking #pxe #sysadmin
Aug 27Moving from OS X to Linux: Day One#command line #fedora #kernel #linux #networking #performance #rpm #sysadmin #yum
Jul 23PXE boot Fedora 19 using a Mikrotik firewall#fedora #mikro #networking #pxe #red hat #ssh #sysadmin #virt-manager #virtualization
Jul 10A humble farewell to Seth Vidal#cloud #fedora #linux #openstack #rackspace #red hat #red hat #rpm #xen #yum
Jul 07Boot VM’s with virt-manager and libvirt with ISO’s stored remotely via samba/cifs#command line #fedora #linux #red hat #samba #virtualization
Jul 05Confine untrusted users (including your children) with SELinux#centos #command line #fedora #red hat #security #selinux #sysadmin
Jun 03Supermicro X9SCI/X9SCA server does a shutdown rather than a reboot#centos #command line #fedora #linux #red hat #sysadmin
Jun 03Installing the Xen hypervisor on Fedora 19#command line #fedora #kernel #linux #security #selinux #sysadmin #virtualization #xen #yum
May 22Migrate KVM virtual machines from CentOS 6 to Fedora 18 without the luxury of shared storage#centos #command line #fedora #kvm #linux #red hat #virtualization
May 22Handling terminal color escape sequences in less#centos #command line #fedora #advice #linux #red hat #sysadmin
May 15Changing your ssh server’s port from the default: Is it worth it?#command line #fedora #advice #linux #networking #networking #red hat #security #ssh #sysadmin #virtualization #web
Apr 26Automate CentOS 6 deployments with CIS Security Benchmarks already applied#centos #development #fedora #github #kickstart #red hat #rpm #security
Apr 16Seriously, stop disabling SELinux#centos #command line #fedora #advice #red hat #security #selinux
Apr 15Remove sensitive information from email headers with postfix#centos #command line #fedora #mail #postfix #red hat #security #sysadmin
Mar 20virt-manager won’t release the mouse when using ssh forwarding from OS X#centos #fedora #mac #ssh #virt-manager #virtualization
Mar 20Late night virtualization frustration with kvm#command line #fedora #kvm #sysadmin #virtualization
Mar 17Survive the Google Reader exodus with Tiny Tiny RSS#advice #google reader #mysql #php #security #ssl #sysadmin #web
Jan 08Fixing the Lenovo X1 Carbon’s washed out display#display #fedora #lenovo #linux #mint #thinkpad
Dec 28Handy settings for the touchpad/clickpad in the Lenovo X1 Carbon#fedora #lenovo #linux #synaptics #xorg
Nov 04Log Android events remotely to a syslog server#android #bluetooth #centos #fedora #red hat #syslog
Oct 24Using git clean to remove subdirectories containing git repositories#development #git #sysadmin
Aug 01Building vpnc with openssl support via MacPorts on Mac OS X#command line #mac #networking #security
Jul 14X forwarding over ssh woes: DISPLAY is not set#centos #fedora #linux #red hat #security #ssh #sysadmin
Jul 10SELinux, Xen, and block devices in Fedora 17#fedora #security #selinux #sysadmin #virtualization #xen
Jun 13Great guide for using traceroute and understanding its results#fedora #advice #linux #networking #sysadmin
Jun 08Keep tabs on OpenStack development with OpenStack Watch on Twitter#development #openstack #python #twitter
May 31Lessons learned in the ambulance pay dividends in the datacenter#emergency #advice #operations #sysadmin
May 11Lesser-known but extremely handy Linux tools#command line #linux #networking #performance #security #sysadmin
Mar 30Why technical people should blog (but don’t)#blog #fedora #advice #red hat #rhca #sysadmin #writing
Mar 29mysql-json-bridge: a simple JSON API for MySQL#development #github #json #mysql #python #rackspace #web
Mar 14New Fedora and EPEL package: httpry#centos #command line #development #fedora #linux #red hat #rpm #scientific linux
Feb 13Looking back at the long road to becoming a Red Hat Certified Architect#centos #certifications #fedora #advice #linux #rackspace #red hat #rpm #sysadmin
Feb 07Using OpenSSL’s s_client command with web servers using Server Name Indication (SNI)#apache #command line #networking #security #ssl #sysadmin #web
Feb 05The Kerberos-hater’s guide to installing Kerberos#centos #command line #fedora #kerberos #networking #nis #rackspace #red hat #rhca #security #ssh #sysadmin
Feb 04Get notifications instead of automatic updates in Scientific Linux#fedora #scientific linux #security #yum
Feb 03Kerberos for haters#command line #fedora #kerberos #linux #networking #networking #red hat #rhca #security #ssh
Feb 01Create a local PyPi repository using only mod_rewrite#apache #command line #mod_rewrite #python #sysadmin
Jan 26Getting started with SELinux#centos #command line #fedora #red hat #security #selinux #sysadmin
Jan 16XenServer 6: Storage repository on software RAID#command line #linux #lvm #mdadm #raid #xen #xenserver
Jan 11Native IPv6 connectivity in Mikrotik’s RouterOS#command line #ipv6 #linux #mikrotik #networking
Jan 02SELinux and .forward files#command line #fedora #mail #postfix #red hat #security #selinux #sysadmin
Dec 16Getting online with a CradlePoint PHS-300 and an AT&T USBConnect Mercury#linux #mac #networking #wireless
Nov 23Automatically upgrading to new point releases of Scientific Linux#centos #red hat #scientific linux #security #yum
Nov 15Live upgrade Fedora 15 to Fedora 16 using yum#centos #command line #fedora #linux #raid #red hat #scientific linux #sysadmin #yum
Sep 16Receive e-mail reports for SELinux AVC denials#centos #command line #email #fedora #messagebus #red hat #security #selinux #server #ssh #sysadmin #systemd #yum
Sep 08Getting apache, PHP, and memcached working with SELinux#apache #centos #command line #fedora #linux #memcached #php #red hat #ruby #security #selinux #sysadmin
Aug 06Xen 4.1 on Fedora 15 with Linux 3.0#cloud #command line #fedora #kernel #linux #red hat #sysadmin #virtualization #xen
Jun 16Keep all old kernels when upgrading via yum#command line #fedora #kernel #linux #red hat #sysadmin #yum
Jun 05Measure traffic flows with Mikrotik’s RouterOS and ntop on Fedora 15#fedora #linux #mikrotik #networking #ntop
Mar 10Strategies for detecting a compromised Linux server#advice #linux #networking #security #sysadmin
Feb 14Dual-primary DRBD with OCFS2#centos #cluster #command line #fedora #filesystem #high availability #linux #ocfs2 #red hat #storage #sysadmin
Dec 15Mounting a raw partition file made with dd or dd_rescue in Linux#command line #emergency #sysadmin
Dec 08Tap into your Linux system with SystemTap#advanced #centos #command line #fedora #kernel #red hat #sysadmin #systemtap #yum
Dec 03Keep web servers in sync with DRBD and OCFS2#command line #filesystem #kernel #networking #sysadmin
Nov 17Throwing thoughtful “403 Forbidden” responses with apache#apache #command line #mod_rewrite #sysadmin #web
Oct 16Do professional certifications belong in your e-mail signature?#advice #certifications #sysadmin #twitter
Oct 12Securing your ssh server#advice #command line #firewall #iptables #linux #networking #security #ssh #sysadmin
Jun 27A modern implementation and explanation of Linux Virtual Server (LVS)#advice #high availability #linux #networking #performance #sysadmin #web
May 14Legacy tty1 and block device support for Xen guests with pvops kernels#development #kernel #linux #virtualization #xen
Mar 02Private network interfaces: the forgotten security hole#apache #cloud #command line #encryption #iptables #mysql #networking #security #ssl #sysadmin #tcpwrappers
Feb 16MySQL: The total number of locks exceeds the lock table size#configuration #database #innodb #memory #mysql #optimization
Jan 29MySQL: The total number of locks exceeds the lock table size#command line #database #innodb #memory #mysql
Nov 17Automatically loading iptables rules on Debian/Ubuntu#debian #iptables #networking #scripts #security #ubuntu
Aug 14Fedora 11 httpd: alloc_listener: failed to get a socket for (null)#apache #emergency #fedora #kernel #yum
Feb 27Prevent gnome-keyring from asking for a password when NetworkManager starts#annoyances #gnome-keyring #networkmanager
Jan 30Linux: emergency reboot or shutdown with magic commands#command line #emergency #kernel #linux #sysctl
Aug 13Basic procmail configuration with spamassassin filtering#postfix #procmail #sendmail #spamassassin
Jan 22Dovecot: libsepol.so.1: failed to map segment from shared object: Cannot allocate memory#dovecot #mail
Nov 20EXT3-fs error (device hda3) in start_transaction: Journal has aborted#command line #emergency #filesystem
Nov 19Red Hat Perl Issues: unable to call function somefunction on undefined value#command line #perl #red hat #web
Aug 24Apache: No space left on device: Couldn’t create accept lock#apache #emergency #quotas #semaphore #web
May 27rpmdb: Lock table is out of available locker entries#bdb #command line #emergency #fedora #python #red hat #rpm #up2date #yum