Mac network traffic command line monitoring tool nettop.

In testng.xml, the “verbose” attribute of the suite tag is very useful for troubleshooting configuration related error. Its values can be set as 1 to 10, and smaller value means lower verbose and bigger value means higher verbose.

Elasticsearch python client and sample code for indices creation and deletion, document indexing, and searching. For elasticsearch installation, see post elk-getting-started-notes.

PEP8 (Python Enhancement Proposal 8) is the style guide for python coding and this post lists some of the important rules that should be followed.

SQL functions.

SQL basics.

Getting started notes on ELK (Elasticsearch, Logstash, Kibana).

References on how to setup nagios with check_mk plugin with omd package.

Setup nagios core on ubuntu 12.04 (precise 32) with root user.

How to config logstash email output plugin to send email alert.