If you are new on the Linux platform, I am sure you feel overwhelmed with all the different versions available. Choosing one is not an easy task, and each version has its own pros and cons.
Let me tell you why I like CentOS:
It is very stable It has well tested features There is a big community around it It has many large software repositories It is Part of the RedHat / Fedora family Installing CentOS Installing a new operating system may seem challenging, but CentOS has always made this task a simple one.
This time we are going to install Solr, the super text search platform on CentOS. The installation process requires a couple extra libraries in order to work: Apache Commons Logging and SLF4J. Installing Java yum install java java -version You must have at least version 1.6 in order to run Solr. If you got Java 1.5, I recommend you to follow this tutorial to get version 1.6.
Installing Tomcat yum -y install tomcat6 tomcat6-webapps tomcat6-admin-webapps chkconfig tomcat6 on service tomcat6 start Use a web browser to check it is working correctly.
Java 1.5 is the default Java version you get when you ask yum to install it on CentOS. However, several applications need 1.6 in order to run. Just follow the next steps to install it.
Remove Java 1.5
yum remove java-1.5-* Install the rpmforge repository
cd rpm --import http://apt.sw.be/RPM-GPG-KEY.dag.txt Check if you have a 32 or 64 CentOS version
uname -a For 32 versions (i686) download and install the following repository
In few words, you have to configure MySQL to allow remote connections, create a user for connecting and setup your firewall to allow it. You don’t have to do this if you are only connecting from a local application like WordPress.
You need root permissions to perform the following commands.
Configuring MySQL Edit the MySQL configuration file.
nano /etc/my.cnf Allow connections from all your network interfaces by commenting out the following line:
Since the module is not included with the default PHP installation, you have to download it from the official repository:
cd mkdir mongo-php-driver cd mongo-php-driver curl https://codeload.github.com/mongodb/mongo-php-driver/zip/master > mongo-php-driver-master.zip Unzip it
unzip mongo-php-driver-master.zip cd mongo-php-driver-master You need _phpize _to build the module. You can install it from the remi repository:
wget http://rpms.famillecollet.com/enterprise/remi-release-6.rpm rpm -Uvh remi-release-6.rpm yum --enablerepo=remi install php-devel Configure and build
phpize ./configure make all sudo make install Make sure the installation directory is the same as the PHP extension directory by running:
The first step is to configure the repositories. Create the following file /etc/yum.repos.d/10gen.repo with the following contents:
For 32-bit systems:
[10gen] name=10gen Repository baseurl=http://downloads-distro.mongodb.org/repo/redhat/os/i686 gpgcheck=0 enabled=1 For 64-bit systems:
[10gen] name=10gen Repository baseurl=http://downloads-distro.mongodb.org/repo/redhat/os/x86_64 gpgcheck=0 enabled=1 Install Mongo
yum install mongo-10gen mongo-10gen-server Configure MongoDB You can configure Mongo by editing the following file:
/etc/mongod.conf Set Mongo to autostart on system boot:
chkconfig mongod on Start Mongo
service mongod start Stop Mongo
To get your CentOS version type:
cat /etc/redhat-release To update all your CentOS packages at once:
yum update To install nslookup, dig and other network utilities:
yum install bind-utils -y
