1. Add the MongoDB yum repository.
# vim /etc/yum.repos.d/mongodb.repo
[mongodb]
name=MongoDB Repository
baseurl=http://downloads-distro.mongodb.org/repo/redhat/os/x86_64/
gpgcheck=0
enabled=1
2. Install?MongoDB
# yum install -y mongodb-org
3. Start MongoDB.
# service mongod start
Starting mongod: [ OK ]
4. Verify that MongoDB started successfully.
# cat /var/log/mongodb/mongod.log | grep"waiting for connections on port"
2015-09-23T16:39:35.455+0300[initandlisten] waitingforconnections on port 27017
5. Configure the database to start automatically when OS starts.
$ sudo chkconfig mongo on
6. Configure iptables
# /sbin/iptables -I INPUT -p tcp --dport 27017 -j ACCEPT
# service iptables save
# service iptables restart
