Often I am asked to help troubleshoot various application running in a client’s environment that I have never run before. One of my front pocket tools is lsof. What process is listening on port 443? In this case -s TCP:LISTEN Read more…
I could not find a good tutorial for deleting route53 records in DNS. This requires that you have jq installed first Find my hosted zones id $ aws –region us-west-1 –profile client-terraform \ route53 list-hosted-zones-by-name –dns-name example.net \ |jq .HostedZones[].Id Read more…
I recently just sat through one of the most painful technical talks that I have ever attended, so I would like to offer some advice on giving a technical presentation that is mostly stolen from good speakers. At the end Read more…
Getting JMX remote from my desktop to a Vagrant machine took a few tries. Vagrant file configuration to add more memory and forward the HTTP and JMX ports Vagrant.configure(VAGRANTFILE_API_VERSION) do |config| config.vm.box = "ubuntu/xenial64" config.vm.network "forwarded_port", guest: 8080, host: 8080 Read more…
On my company blog, I wrote a guide to running redis in production environments.
This morning while checking the comments on this blog I was surprised at the amount of spam comments caught by the Akismet plugin, so I decided to dive in with some logfile analysis using R to see if I could Read more…
VimWiki is an excellent tool for creating both a personal knowledgebase and journal. I use it everyday to keep track of new techniques that I learn as well as to keep notes on how I perform tasks everyday. Because it Read more…
In a previous article, I detailed the open source projects that I used to implement a PaaS infrastructure. Since that time the number of instances in the infrastructure has grown by 2.5X and several of the components needed to be Read more…
After spending a few days at PuppetConf and talking with Eric S. and Jeff McC. of puppetlabs, I felt compelled to upgrade the latest version of our architecture to Puppet 3.0 from 2.7. Mainly to fix plugin sync issues and Read more…
In the past I have used nginx to route all cert requests to a single cert server. This worked fine when I had limited my puppet infrastructure to a single EC2 region. However, I recently decided to have puppet masters Read more…