All Stories

ZooKeeper responds to a small set of commands. Each command is composed of four letters. When we issue the commands to ZooKeeper via telnet or nc, we would get corresponding response.

Lsof is used to list open files. Lsof follows Unix philosophy closely. It does just one task and it does it perfectly — it lists information about opened files in a running system. An open file can be a regular file,…

Pysswords is a python based tool that can be used to manage your passwords in command-line. Its encryption is done with GnuGPG using AES256. You can take a look at pysswords.crypt module to know more. 

This post shows Linux system administrator one way of how bitcoin miner works on a Linux box, and intends to help sysadmin to detect abnormal processes that running on your servers. The common bitcoin miner is cgminer, and the latest…

Nagios-api provides a simple REST-like interface to Nagios. Run it on Nagios host and sit back and enjoy a much easier, more straightforward way to accomplish things with Nagios. You can use the bundled nagios-cli, but you may find it…

One of our FAQ has described how to use cURL with cookies, here we will show how to update Twitter status from command line on Linux or Mac with Bash, this is simpler compared to the Python way using OAuth.

If you have a single partition virtual disk, you can mount the image file directly. It is a bit more work if you have multiple partitions on the virtual image, as you cannot mount these partition directly. We here have…

  Nginx-1.5.10 released at 4, Feb, 2014.  The ngx_http_spdy_module module provides experimental support for SPDY. Draft 3.1 of SPDY protocol is implemented in Nginx-1.5.10. This module is not built by default, it should be enabled with the –with-http_spdy_module configuration parameter.

As for Linux System Administration, the command ls should be the one   that we use most, but how much do you know about this command? ls has more than 50 optional parameters on common linux distributions, and we only…

Suppose you are running a Linux based VPS, how can you run a test to check the speed of your data connection to internet? Here we will show a simple solution of how to test Internet connection speed for a…