Tracing SIP messages using Tcpdump
Tcpdump is a command line tool to capture contents of packets passing through a network interface.
p8952
cat /dev/random
Latest posts
Running Tensorflow with Docker on GCP
Provision Virtual Machine:
Benchmarking Ruby with GCC (4.4, 4.7, 4.8, 4.9) and Clang (3.2, 3.3, 3.4, 3.5)
This post is partially inspired by Braulio Bhavamitra’s comments about Ruby being faster when compiled with Clang rather than GCC and partially by Brendan Gregg’s comments about compiler optimisation during his Flame Graphs talk at USENIX LISA13 (0:33:30).
Listing EC2 instances in all regions
When working with EC2 instances across multiple regions I’ve found it’s near impossible to get a good overview of what is running where. This can be especially annoying when you are automatically launching a number of short lived instances.
Installing Vagrant in non-supported environments
Get sources: $ git clone git@github.com:mitchellh/vagrant.git $ cd vagrant $ git checkout tags/v1.6.5
VMware ESXi MEMORY_SIZE_ERROR
VMware’s ESXi 5.5 increases the recommend memory requirement from 4GB to 8GB, their own System Requirements document stating that: