Setting up an SSH tunnel with .ssh/config
Recently we had a client whose Openstack configuration required us to use a SOCKSv5 proxy to access the Horizon Dashboard. Rather than create the tunnel by running ssh -D 8080 -f -C -N ${remote-host}, it…
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Setting up Keybase and GPG Tools (Mac)
What are GPG Tools? GPG, or GNU Privacy Guard, is a replacement for Symantec's PGP cryptographic software suite and allows users to encrypt sensitive information. Specifically, GPG Tools includes a utility that integrates with Apple…
Building a Linux Static Binary with sipcalc, CentOS 7, and Docker
First: What is sipcalc? sipcalc is a handy tool that makes networking a bit less painful, e.g.: $ sipcalc 192.168.0.0/24 -[ipv4 : 192.168.0.0/24] - 0 [CIDR] Host…
My Shell, My Bell: While/Xargs by Example
Earlier today I logged into a jumpbox session and was greeted with some lovely error messages: $ channel 12: open failed: administratively prohibited: open failed channel 13: open failed: administratively prohibited: open failed channel 19: open…
To Bundle or not To Bundle
Short Answer: Not To Bundle I recently tore down and recreated my local BOSH lite installation. Re-cloned the repos - everything. Imagine my surprise when I ran into this little gem (har har see what…
Pre-Flight Checks: Sprucing up Concourse with Test Concourse
As part of a project, a client wants to have a self-deploying Concourse. Basically that means that once everything is set up, the alpha Concourse will deploy the beta Concourse and, if that completes successfully,…