Site Reliability Engineer
For my previous blog post about ansible and my written ansible-playbook I’ve received some feedback and questions. I’ve decided to give you a short instruction how to install and configure ansible to start your own packet capture with my ansible-playbook tcpdump.yml. Installation For this purpose I am using a fresh created t2.micro AWS EC2 Instance….
What is Ansible? Ansible is an agentless open source automation tool used for configuration management and other purposes. At the moment I also use it to collect diagnosis data. Ansible is working via SSH and can connect to multiple server in parallel (from your source server). It connects to the remote sides and can executes…
Why I need to run tcpdump with cron? Sometimes problems happens while we are sleeping and disappear without any intervention in the morning. Unfortunately we are missing diagnosis data to drive the proper root cause analysis. And of course even we are praying that those problems don’t come back, they will come back. So prepare…
What is tcpdump? In the manpage the entry sentence of the description describes it in good words “… Tcpdump prints out a description of the contents of packets on a network interface…” It will help you to capture each network in-going and out-going packet on your interface and display it directly on your command line…