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Monthly archive July, 2012

Step by Step installation guide for NSTI Nagios Snmp Trap Interface on CentOS/RHEL, Fedora, Debian, Ubuntu

Overview

Nagios SNMP Trap Interface is a PHP frontend for the MySQL or PostgresSQL backend that SNMPTT creates. It allows you to filter SNMP results quickly and effectively to get a comprehensive overview of the information you want to see. NSTI's Read More →

How to resolve Google Chrome can not be run as root. (Ubuntu, Fedora, CentOS)

Overview

First and foremost, you should never run a web browser as root, in fact you should not run any software as root when you don't have to. If you still wish to run chrome as a root nobody can stop Read More →

How to clear bash command line history in linux?

Overview

The history command shows the recently-executed commands recorded in a history list.

How to clear bash command line history in linux

history
Sample Output
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How to measure the Latency and Throughput of your webserver

Overview

If you are using a web server to host a website, chances are you not only wish to keep your website up all the time but to make it fast. Before you squeeze that extra bit of performace from your Read More →

REMOTE HOST IDENTIFICATION HAS CHANGED (Remove SSH Known Host)

Overview

If you use ssh to connect to your linux box, you may find the error below is very common. This situation may arise if the server has been changed or you have install the OS again, which results in change Read More →

Temporarily disable user logins in Linux RHEL/CentOS 5 or 6

Overview

If you are a Linux administrator it is sometimes necessary to stop users from logging into your server due to some system maintenance activity, during update cycles or scheduled software installations. Ideally you should login to single user mode which will Read More →

Installing VSFTP with virtual users on CentOS 6 or 5

Overview

Ever been in a situation where you have to create a FTP server with virtual users i.e the user should not have account on the FTP server itself yet should be able to authenticate, download and upload files. I bet Read More →

Installing Subversion on CentOS

Overview

Subversion is a free/open source version control system (VCS).  That is, Subversion manages files and directories, and the changes made to them, over time. You can follow the instructions below to install subversion.

How to Install Subversion on CentOS

Install apache
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How to find out memory information on my Linux machine

Ever wondered how much memory your machine can support just in case you need more in future. Is your motherboard capable of handing more. You can find the information about memory on my machine's board. Execute
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How to find default gateway and set it up in Linux

In Linux you can use route command to find the default gateway set on your system. It also allows you to make manual entries into the network routing tables.

Finding Default Gateway

Type route to find the default gateway.
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