Category: Software

  • Migrating VMs from pure paravirt hypervisor to hvm-capable hypervisor

    I’m also changing all of my disk layouts from being block devices per each guest partition to one block device hypervisor side per each /dev/xvd* guest side. The block devices all live on a single storage server and are being served via iSCSI. One of the guests is making use of AoE, but I’m thinking…

  • The Very Model of a Poster to CLPM

    So, in 2002 I attended my first SPUG meeting. Also in attendance were Randal, Tim, J.P. (I think) and quite a few of the other usual suspects. The guest speaker was the inestimable Dr. Damian Conway. This night might be the single most important event in my career as a builder of the internets. I…

  • Replaced hypervisor

    The system which was hosting this blog had a tendency to go down every few days. I swapped it out for a spare yesterday. Let’s see if it stays up. The hypervisor hosts this web server, a mysql server and an SKS pool member, all of which are built on top of Squeeze.

  • Perl interface to processing / querying NIST’s NVD feed

    For a work project, I wrote a library in perl that can be used to query the NVD feed that NIST publishes here: http://nvd.nist.gov/download.cfm Here’s a snippit from the perldoc: use NIST::NVD::Query; # use convert_nvdcve to generate these files from the XML dumps at # http://nvd.nist.gov/download.cfm my( $path_to_db, $path_to_idx_cpe ) = @ARGV; my $q =…

  • xend xml parsing failure – solution

    I got this error when starting xend after a filesystem crash: [2011-12-09 11:05:04 5590] ERROR (SrvDaemon:349) Exception starting xend (not well-formed (invalid token): line 3, column 0) It sounded like an XML parsing error, but the stack trace in the log didn’t say which file it had loaded. It turns out that it was trying…

  • Bitcoin WoT using PGP/SKS

    There was recently a post to the sks list prompting discussion regarding the use of PGP and SKS as a distributed web of trust for an alternative currency system called “Bitcoin.” This reminds me of a project I worked on in the early ’00s with the late Jeff Fairhall and Thomas Greco. Anyhow, I mumbled…

  • And with that, the keyserver is back online

    http://keyserver.colliertech.org:11371/pks/lookup?search=0xBA27A83C&op=vindex Go go gadget interwebs. Now to sync back up and get into good standings on the status page.

  • 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…

  • SJCARS blog

    The San Juan County Amateur Radio Society (SJCARS) has created a blog. I’m excited. http://sjcars.wordpress.com/

  • Taking a position at F5

    Hello readers, I recently finished a contract with Liquid Web helping them to build their cloud computing system. The next adventure will be with F5 as a Product Management Engineer. I’ve been hearing good things about F5 hardware since 2000 when Matt Fisher talked up the Big IP he had been using. My friends in…