If you need to print a certain number of lines before and/or a pattern match, grep can achieve this with the -B{number} and -A{number} options. This can be very useful when looking through logs and trying to determine what events took place immediately before and/or after…
I hit a very unusual bug with IIS 6.1 (Win 2008 R2 server) today. When passing credentials from iPXE to IIS (for accessing secured resources), my password didn't work. For this example, lets assume my password was Ba5eb@ll The "@" was interpreted literally in the…
I recently came across a Grandstream bug which caused major issues establishing SIP sessions between a remote site (over VPN) and the PBX. Synopsis A network exists between two locations (192.168.0.0/24 - Home, and 192.168.1.0/24 - Warehouse). These two locations are connected…
Some notes from tonight's puppet meetup at Optiver Sydney. Thanks to Johnny, Kieran and Pedram, some very interesting discussion points. * ScienceLogic - promising enterprise tool for managing puppet performance across multiple tenants * Puppet at scale was a very interesting talk - some great approaches for overcoming scaling limits.…
This is a simple script which takes a CSV input file (plus a few arguments) and updates the zoning config. The script * Checks that the config name already exists * Checks that the specified storage alias already exists * automatically saves the config * automatically enables the config --> note - this…