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Linux Feed

Linux Support, Oracle Linux, Red Hat Enterprise Linux, SUSE, Oracle Unbreakable Enterprise Kernel and the Oracle Unbreakable Linux Support Program (ULN) resources, news, and support articles.

Compiling igraph-0.7.1 on CentOS 5

Setting up the igraph-0.7.1 in C is quite easy
Step 1: yum install gcc44 and above
# yum install gcc44 gcc44-c++ gcc44-gfortran
Step 2: Install libxml2 libraries
# yum install libxml2
Step 3: Download the igraph-0.7.1 from the igraph C site

How to manage linux bonding without ifenslave using sysfs

While working with a vyatta linux system I encountered a situation where bonded network interfaces were configured but the server didn’t have the ifenslave tool installed. As it turns out, linux bonded interfaces are easily managed directly through a simple sysfs interface. Here’s a quick run down of how to manage linux bonding without ifenslave […]

Lighttpd – block user agent

 
In lighttpd we can block or deny access to a specific user agent.
Syntax to block user agent:
$HTTP["useragent"] =~ "User agent name" {url.access-deny = ( "" )}
where “User agent name” is any user agent.
Example:
$HTTP["useragent"] =~ "Xenu Link Sleuth" {url.access-deny = ( "" )}
Above example will block all requests with user agent name “Xenu Link Sleuth”.

Installing and Configuring GIT on CentOS 5

Git is a free & open source, distributed version control system designed to handle everything from small to very large projects with speed and efficiency.
Every Git clone is a full-fledged repository with complete history and full revision tracking capabilities, not dependent on network access or a central server. Branching and merging are fast and easy to do.
Step 1: Installing Dependencies required by GIT

Installing dokuwiki on CentOS 6

This writeup is a modification from Installing dokuwiki on CentOS
 
Step 1: Get the latest dokuwiki  from http://download.dokuwiki.org/
# wget http://download.dokuwiki.org/src/dokuwiki/dokuwiki-stable.tgz
# tar -xzvf dokuwiki-stable.tgz
Step 2: Move dokuwiki files to apache directory

Hide command from bash command line history

Linux is known as a very secure operating system. But, it is not going to save us if we voluntarily or unknowingly expose ourselves to unnecessary danger. For instance, a password-authenticated command may allow you to specify the password right on the command-line. $ mysql -u root -pMyPassword

iWARP Update Roadmap 2014 (White Paper)


An interesting information on iWARP roadmap with OpenFabric Alliance iWARP Update (pdf)

Share the keyboard and mouse using Synergy - part 2/2

Part 1 of this 2-part series covers x2x, a nifty software tool that lets you use the keyboard and mouse of one X terminal to control another. If you want to control more than 1 other machine, or the machines are on different platforms (Linux, Mac OS X, and Windows), Synergy is the tool. Installation My primary machine runs Debian 7.5 - aka Wheezy.

Nmap – Scan for open ports

 
nmap is a network exploration tool and security/port scanner.
We can list all open ports using nmap for a given IP/Host.
Use following command to list all open ports:
$ sudo nmap -v -sS 192.168.1.1
Use following command to scan specific ports:
$ nmap -sS -O -p80,8080 192.168.1.1
To can specific range of ports(scan from port 80 to 100):

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