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

# ./configure --prefix=/usr/local/igraph-0.7.1
# make -j 8
# make install

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

# yum -y install zlib-devel openssl-devel perl cpio expat-devel gettext-devel

Step 2: Compile and Installing CURL

What is CURL? curl is a command line tool for transferring data with URL syntax, supporting DICT, FILE, FTP, FTPS, GOPHER, HTTP, HTTPS, IMAP, IMAPS, LDAP, LDAPS, POP3, POP3S, RTMP, RTSP, SCP, SFTP, SMTP, SMTPS, TELNET and TFTP.

# wget
# tar xzvf curl-7.18.2.tar.gz
# cd curl-7.18.2
# ./configure
# make
# make install

Step 3: ldconfig /usr/local/lib

# vim /etc/



Step 4: Install GIT

# wget
# tar xzvf git-latest.tar.gz
# cd git
# autoconf
#./configure –with-curl=/usr/local
# make
# make install

Horray it is done.

Credits: Much of the credit of the materials must go to

Installing dokuwiki on CentOS 6

This writeup is a modification from Installing dokuwiki on CentOS


Step 1: Get the latest dokuwiki  from

# wget
# tar -xzvf dokuwiki-stable.tgz

Step 2: Move dokuwiki files to apache directory

# mv dokuwiki-stable /var/www/html/docuwiki

Step 3a: Set Ownership and Permission for dokuwiki

# chown -R apache:root /var/www/html/dokuwiki
# chmod -R 664 /var/www/html/dokuwiki/
# find /var/www/html/dokuwiki/ -type d -exec chmod 775 {} \;

Step 3b: Remember to modify your mod_security or disable your selinux

# setenforce 0

Step 4: Continue the installation

Ignore the security warning, we can only move the data directory after installing.
fill out form and click save

Step 5: Delete install.php for security

# rm /var/www/html/dokuwiki/install.php

Step 6: Create and move data, bin (CLI) and cond directories out of apache directories for security

Assuming apache does not access /var/www, only /var/www/html and /var/cgi-bin secure dokuwiki (or use different directory):

# mkdir /var/www/dokudata
# mv /var/www/html/dokuwiki/data/ /var/www/dokudata/
# mv /var/www/html/dokuwiki/conf/ /var/www/dokudata/
# mv /var/www/html/dokuwiki/bin/ /var/www/dokudata/

 Step 7: Update dokuwiki where the conf directory

# vim /var/www/html/dokuwiki/inc/preload.php
// DO NOT use a closing php tag. This causes a problem with the feeds,
// among other things. For more information on this issue, please see:


* Note the comments why there is no closing php

Step 8: Update dokuwiki where the data directory is

# vim /var/www/dokudata/conf/local.php
$conf['savedir'] = '/var/www/dokudata/data/';

Step 9: Set permission for dokuwiki again for the new directory with same permissions

# chown -R apache:root /var/www/html/dokuwiki
# chmod -R 664 /var/www/html/dokuwiki/
# find /var/www/html/dokuwiki/ -type d -exec chmod 775 {} \;

# chown -R apache:root /var/www/dokudata
# chmod -R 664 /var/www/dokudata/
# find /var/www/dokudata/ -type d -exec chmod 775 {} \;


Step 10: Go to wiki