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Load balancing SIP across Asterisk with BIG-IP
Topology Participating hosts * 1x BIG-IP VE * 1x Debian Squeeze “Provisioning Server” serving DHCP, TFTP & DNS * 3x Nortel/Avaya 1120E hard phones flashed to SIP1120e04.01.13.00 * 2x Debian Squeeze + digium asterisk packages: $ grep asterisk /etc/apt/sources.list deb http://packages.asterisk.org/deb squeeze main deb-src http://packages.asterisk.org/deb squeeze main DUNDi *CLI> module reload pbx_dundi.so *CLI> dundi show…
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No longer just the president of the hair club for men
So. I think the project I’m working on is so awesome that I’m willing to pay for it. I set up the first of many sites yesterday that will be running on my blingy new storm host: Home Birth Seattle was designed and developed by Cadmium Yellow, AKA my wife, Hannah ;) We did the…
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A sonnet for kpartx
yeah, I don’t have one, but someone should write one.
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Building libvirt on CentOS5 (incomplete)
Much thanks to Brett for the pointers on rpm-fu. http://grantmcwilliams.com/index.php?option=com_content&view=article&id=229: $ sudo yum install \ xen-devel \ xhtml1-dtds \ hal-devel \ libpcap-devel \ cyrus-sasl-devel \ parted-devel \ numactl-devel \ avahi-devel \ slang-devel \ libvolume_id-devel \ openldap-devel # device-mapper-devel \ # xmlrpc-c-devel \ for pkg in \ libssh2-devel-1.2.5-1.el5.pp.x86_64.rpm \ libssh2-1.2.5-1.el5.pp.x86_64.rpm \ libssh-0.2.1-0.2.svn193.el5.pp.x86_64.rpm \ libssh-devel-0.2.1-0.2.svn193.el5.pp.x86_64.rpm do wget…
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John Hodgman is using software that I helped to write
A recent blog post by The Hodg Man mentions that he uses (AND ENJOYS) a product I’ve helped to build. Yay. *** FULL DISCLOSURE NUMBER TWO FAITHFUL READERS OF THIS IMITATION BLOG know that, having crashed my own website repeatedly while linking to it Twitterphonically, I experimented with NEW INTERNET TECHNOLOGY to try to fix…
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AoE root for KVM guests
Intro So. I’m trying to get familiar with libvirt and friends. To this end, I’ve set up a Lucid virtual machine booting from PXE into an initrd environment which does a pivot_root to an AoE block device. The #virt channel on irc.oftc.net told me that in order to have libvirt provide PXE capability, I would…
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building unmodified_drivers
This is the gist of it: $ cd /usr/src/ # $ sudo chmod a+rwx . $ wget ftp://ftp.suse.com/pub/projects/kernel/kotd/SLE11_BRANCH/src/kernel-source-2.6.27.39-0.0.0.25.15a4c6f.src.rpm $ alien -tg kernel-source-2.6.27.39-0.0.0.25.15a4c6f.src.rpm $ cd kernel-source-2.6.27.39 $ tar xfj linux-2.6.27.tar.bz2 $ for f in patches.*.tar.bz2; do tar xfj $f || break; done $ for p in $(./guards x86_64 < series.conf); do patch -d linux-2.6.27 -p1 <…
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Xen PV network driver
I haven’t used Xen HVM until recently. When I was at Amazon and hanging with the Xen provisioning folks, I recall complaints about the performance of network drivers on HVM instances. I’ve recently discovered that this was due to the use of the ioemu virtual interface (vif) system. In paravirtualized environments, Xen vif devices are…
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Sorry for the downtime
One of my servers (and co-incidentally, the one on which this blog is hosted) was down for the last week. I ran out of space on / and created a new lv to store the contents of /usr. I named the lv dom0-usr but referred to it as amd0-usr in /etc/fstab. It didn’t boot so…
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libvirt patch accepted
Whee. I submitted a patch to libvirt to include ARM machines in the capabilities list. Folks should now be able to create arm hosts with less hassle. Since Lenny, Debian has officially supported the arm architecture. I’ll write up a HOWTO for getting a qemu VM online. I plan to use this to develop Mono…