Leif Madsen

I’m not clever enough for a tagline.

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  • AWX: The Poor Man's CI? · nfvpeansiblecontinuous integration · Nov 7, 2017
  • Deploying AWX to OpenStack RDO Cloud · nfvpeopenstackansible · Nov 7, 2017
  • Persistent volumes with GlusterFS · glusterFSnfvpestoragekubernetespersistentvolumes · Sep 19, 2017
  • yakLab Part 1c: Bootstrapping Bifrost with Ansible · automationbifrostbaremetalyaklabansibledevops · Aug 4, 2017
  • yakLab Part 1b: Kickstart File Build Out · nfvpehowtoinfrastructure · Jul 19, 2017
  • yakLab Part 1a: Building the virtual Cobbler deployment · nfvpehowtoinfrastructure · Jul 12, 2017
  • yakLab build out · nfvpeyakLabvirtualizationhowto · Jul 12, 2017
  • Finding available Ansible tags in playbooks and roles · tripleolinuxbashansible · Jan 4, 2017
  • Installing Python 2.7 on CentOS 6.x · centoslinuxpython · Jan 3, 2017
  • Create a virtual undercloud with TripleO Quickstart · nfvpetripleooooqvirtualizationopenstack · Dec 28, 2016
  • Creating virtual machines in libvirt with virt-install · libvirtlinuxvirtualizationconsole · Dec 16, 2016
  • Initial Fedora libvirt Setup · libvirtlinuxvirtualization · Dec 16, 2016
  • Create network bridge with nmcli for libvirt · nfvpelinuxnetworkingconsole · Dec 1, 2016
  • TripleO: Using the fake_pxe driver with Ironic · TripleOnfvpe · Nov 11, 2016
  • TripleO: Consuming Composable Roles · OpenStackLinuxCloud ComputingTripleOnfvpe · Oct 3, 2016
  • A Console Obsession · LinuxConsoleUnixporn · Sep 27, 2016
  • Rules For The Greater Goodness; A Product Development Guide · developmentproductruleslist · Nov 19, 2015
  • Asterisk Docker Container: Phase 1 · asteriskdockerrpmautomation · Nov 10, 2015
  • Docker container results in x509: failed to load system roots and no roots provided · AsteriskDevOpsDocker · Oct 30, 2015
  • Configuring powerline to show working Git branch · Being ProductiveDevOpsProgramming · Sep 9, 2015
  • Rumors of my death have been greatly exaggerated · LifeMusings · Jul 25, 2014
  • Asterisk: The Definitive Guide 4th Edition goes to print · May 16, 2013
  • Brother printer doesn't print in Fedora 17 · Technology · Nov 24, 2012
  • Digium D40 and D70 Phone Unboxing · AsteriskMusings · Oct 11, 2012
  • Selecting Chef Servers With Environment Variables · DevOps · Aug 22, 2012
  • CentOS 5.8 On AWS EC2 With Xen Kernel (PVGRUB) · DevOpsTechnology · Aug 22, 2012
  • Assign unique hostname to dhcp client with dnsmasq · Being ProductiveDevOpsUseful Tools · Jul 23, 2012
  • bash creating files named '1' everywhere! · MusingsProgramming · Jul 19, 2012
  • Integration Testing Using Jenkins (Part 1) · DevOps · Jun 26, 2012
  • rpmlint non-utf8-spec-file error · Useful Tools · Feb 23, 2012
  • Converting multiple exten => lines to using same => in Asterisk dialplan · AsteriskProgramming · Jan 16, 2012
  • Commodore 64 Turns 30 This Year · LifeMusings · Jan 9, 2012
  • Now working with CoreDial · AsteriskBusinessLife · Jan 4, 2012
  • Cooking With Asterisk (Video) · Asterisk · Dec 23, 2011
  • Asterisk Powered Distributed Call Centres (Video) · Asterisk · Dec 23, 2011
  • .bashrc trick for git repo and branch information · TechnologyUseful Tools · Dec 22, 2011
  • Relaying SMTP via Gmail (or Google Apps) Using Postfix · Being ProductiveTechnologyUseful Tools · Nov 22, 2011
  • Controlling outbound bitrate using tc · ProgrammingUseful Tools · Nov 2, 2011
  • #AstriCon 2011 Quote of the Conference (@abalashov) · AsteriskMusings · Oct 30, 2011
  • #AstriCon 2011: Cooking With Asterisk · Asterisk · Oct 28, 2011
  • #AstriCon 2011: Building a Distributed Call Centre · Asterisk · Oct 26, 2011
  • AstriCon presentation today at 11:40am · Asterisk · Oct 26, 2011
  • Return just PID of script with 'ps' and 'awk' · Being ProductiveProgramming · Sep 15, 2011
  • Using Dialplan Functions: AES_DECRYPT() and AES_ENCRYPT() · Asterisk · Sep 9, 2011
  • Asterisk 10 == Asterisk 1.^H^H10 · Asterisk · Aug 29, 2011
  • Set() and Goto() on same line · AsteriskProgramming · Aug 13, 2011
  • Connecting two conferences on initial join (with cleanup) · AsteriskMusingsProgramming · Aug 11, 2011
  • LeifMadsen Enterprises, Inc. enters its 7th year of operation! · Musings · Aug 2, 2011
  • Chopsticks Played On The Phone · Musings · Jul 29, 2011
  • Asterisk 1.8 And The Importance Of Looking Ahead · AsteriskMusings · May 17, 2011
  • Blast From The Past: The Original Asterisk Book Cover · Asterisk · Apr 27, 2011
  • Request for Reviews for Asterisk: The Definitive Guide · Asterisk · Apr 26, 2011
  • Asterisk Tech Tips: Asterisk Cookbook (April 21, 2011) · Asterisk · Apr 13, 2011
  • Asterisk Cookbook Is Done! · Asterisk · Mar 25, 2011
  • Asterisk Cookbook Ready For Review! · Asterisk · Mar 16, 2011
  • Debugging the Asterisk Dialplan with Verbose() · Asterisk · Mar 4, 2011
  • Using #exec to set externaddr in sip.conf · Asterisk · Feb 27, 2011
  • First HD Conference In Asterisk! · Asterisk · Feb 18, 2011
  • Initial impressions of qemu-kvm (virtualization server) · TechnologyUseful Tools · Feb 9, 2011
  • Asterisk Cookbook Is On! (We Think :)) · AsteriskMusingsTechnology · Jan 27, 2011
  • Asterisk: The Definitive Guide, First Draft Complete! · AsteriskBeing ProductiveMusings · Jan 12, 2011
  • Asterisk: The Definitive Guide -- Call For Reviewers! · Asterisk · Jan 6, 2011
  • 2010 in review · Musings · Jan 3, 2011
  • Update for Asterisk: The Definitive Guide (3rd Edition) · Asterisk · Dec 21, 2010
  • Video of '5 Things You Didn't Know Asterisk Could Do' Presentation Now Available · Asterisk · Dec 21, 2010
  • My Presentations from AstriCon 2010 are Available · Asterisk · Nov 1, 2010
  • Wow, lost ticket recovery for VIA Rail is pretty much garbage · BusinessMusings · Oct 29, 2010
  • AstriCon 2010 and my talks! · AsteriskLife · Oct 27, 2010
  • Scheduling automated calls between two participants with res_calendar · AsteriskProgrammingUseful Tools · Sep 29, 2010
  • Asterisk IMAP and Gmail · Asterisk · Sep 20, 2010
  • Interesting article about *not* tracking holidays at Netflix · Being ProductiveBusinessLife · Aug 25, 2010
  • MindMeister: Online mind mapping · Being ProductiveProgrammingUseful Tools · Aug 10, 2010
  • Speaking at AstriCon 2010! Come see my talk! :) · Asterisk · Aug 3, 2010
  • Installing the Asterisk Test Suite · Asterisk · May 3, 2010
  • Long-term 'shopping list' helps couple furnish Caledon townhouse · LifeMusings · Apr 15, 2010
  • Recent SIP Attacks from Amazon EC2 · Asterisk · Apr 13, 2010
  • Using a Nokia E71 with Asterisk (3G or WiFi) · Asterisk · Mar 19, 2010
  • Speaking @ IT360, April 7th, 2010 · Asterisk · Mar 17, 2010
  • AstriCon 2010 officially announced; What should I submit for a talk proposal?! · Asterisk · Feb 23, 2010
  • New headset thanks to e4voip.com! · AsteriskTechnology · Feb 22, 2010
  • Musings about ENUMplus and ISNs · AsteriskMusings · Feb 19, 2010
  • Update on TFoT v3 Progress · AsteriskMusings · Feb 19, 2010
  • Grammar School! · Musings · Feb 10, 2010
  • Interview from Wind Mobile launch · MusingsTechnology · Feb 9, 2010
  • Why NDAs are Useless · Technology · Dec 9, 2009
  • Update: Asterisk TFoT v3 Progressing Nicely · Asterisk · Nov 27, 2009
  • Cisco VPN Client on Ubuntu Karmic 9.10 · Technology · Nov 27, 2009
  • Starting work on Asterisk: TFoT 3rd edition · Asterisk · Nov 23, 2009
  • Jim van Meggelen, Open Source Telephony Renaissance Man · Asterisk · Nov 21, 2009
  • AstriCon 2009 Presentation -- Building a Distributed Call Center · Asterisk · Nov 18, 2009
  • Building Queues with Asterisk · Asterisk · Nov 14, 2009
  • AstriCon 2009, Building a Distributed Call Center · Asterisk · Oct 7, 2009
  • Ask the Expert! · AsteriskMusings · Sep 8, 2009
  • Creating vCards with QR Codes · Technology · Aug 27, 2009
  • Consuming SOAP complexType webservice with PHP · Programming · Aug 4, 2009
  • Suzanne Bowen Interviews Leif Madsen, Asterisk Rockstar · AsteriskMusingsTechnology · Jul 30, 2009
  • Load testing SIP registrations with SIPp · Asterisk · Jul 29, 2009
  • Importing Master.csv into MySQL CDR table · Asterisk · Jul 29, 2009
  • Quote: Barry L. Beyerstein, "The Brain and Consciousness: Implications for Psi Phenomena", The Skeptical Inquirer, Vol. XII No. 2, ppg. 163-171 · Musings · Jul 19, 2009
  • Issues: ast_rtp_senddigit_begin: Don't know how to represent 'f' (one way audio) · Asterisk · Jul 18, 2009
  • HowTo: Getting Jabber/XMPP notifications from your PBX · Asterisk · Jul 18, 2009
  • Telemarketer Torture · AsteriskMusings · Jul 18, 2009
  • HowTo: Read a value from a file, and say it back · Jul 17, 2009
  • Migrating from AgentCallbackLogin() to Standard Dialplan Methods (part 1) · Asterisk · Jul 16, 2009
  • HowTo: Page() all users, other than current channel · Asterisk · Jul 15, 2009
  • Back from Vacation! · AsteriskMusings · Jul 15, 2009
  • Vacation! · Musings · Jul 2, 2009
  • Manually mixing files created by MixMonitor() · Asterisk · Jun 30, 2009
  • New website! · Musings · Jun 29, 2009
  • New articles coming soon! · AsteriskMusings · Jun 17, 2009
  • Leif Madsen @ IT360, April 2009 · Asterisk · Jun 9, 2009
  • About the new Asterisk versioning method · Asterisk · Jun 6, 2009
  • The end of the beginning? · Musings · May 22, 2009