how to install Mongo DB on linux..

->how to install Mongo DB on linux?

OS details:

[root@localhost ~]# cat /etc/redhat-release
Red Hat Enterprise Linux Server release 5.4 (Tikanga)
[root@localhost ~]#

mongo db version Details.

mongodb-org-3.0

installation steps

1) check network connections

[root@MongoDB ~]# ping mongodb.com
PING mongodb.com (52.21.89.200) 56(84) bytes of data.
64 bytes from ec2-52-21-89-200.compute-1.amazonaws.com (52.21.89.200): icmp_seq=1 ttl=45 time=224 ms
64 bytes from ec2-52-21-89-200.compute-1.amazonaws.com (52.21.89.200): icmp_seq=2 ttl=45 time=227 ms

--- mongodb.com ping statistics ---
3 packets transmitted, 2 received, 33% packet loss, time 2001ms
rtt min/avg/max/mdev = 224.843/226.084/227.325/1.241 ms

2) create and add below paramters in vi /etc/yum.repos.d/mongodb-org-3.0.repo file 

[root@MongoDB ~]# cat /etc/yum.repos.d/mongodb-org-3.0.repo
[mongodb-org-3.0]
name=MongoDB Repository
baseurl=https://repo.mongodb.org/yum/redhat/$releasever/mongodb-org/3.0/x86_64/
gpgcheck=0
enabled=1

3) Run yum command to install mongoDB RPM

[root@MongoDB ~]# yum install -y mongodb-org
Loaded plugins: rhnplugin, security
This system is not registered with RHN.
RHN support will be disabled.
Setting up Install Process
Resolving Dependencies
--> Running transaction check
---> Package mongodb-org.x86_64 0:3.0.12-1.el5 set to be updated
--> Processing Dependency: mongodb-org-tools = 3.0.12 for package: mongodb-org
--> Processing Dependency: mongodb-org-shell = 3.0.12 for package: mongodb-org
--> Processing Dependency: mongodb-org-server = 3.0.12 for package: mongodb-org
--> Processing Dependency: mongodb-org-mongos = 3.0.12 for package: mongodb-org
--> Running transaction check
---> Package mongodb-org-mongos.x86_64 0:3.0.12-1.el5 set to be updated
---> Package mongodb-org-server.x86_64 0:3.0.12-1.el5 set to be updated
---> Package mongodb-org-shell.x86_64 0:3.0.12-1.el5 set to be updated
---> Package mongodb-org-tools.x86_64 0:3.0.12-1.el5 set to be updated
--> Finished Dependency Resolution

Dependencies Resolved

===============================================================================================================================================
 Package                                Arch                       Version                           Repository                           Size
===============================================================================================================================================
Installing:
 mongodb-org                            x86_64                     3.0.12-1.el5                      mongodb-org-3.0                     5.7 k
Installing for dependencies:
 mongodb-org-mongos                     x86_64                     3.0.12-1.el5                      mongodb-org-3.0                     4.7 M
 mongodb-org-server                     x86_64                     3.0.12-1.el5                      mongodb-org-3.0                     9.8 M
 mongodb-org-shell                      x86_64                     3.0.12-1.el5                      mongodb-org-3.0                     5.0 M
 mongodb-org-tools                      x86_64                     3.0.12-1.el5                      mongodb-org-3.0                      28 M

Transaction Summary
===============================================================================================================================================
Install      5 Package(s)
Update       0 Package(s)
Remove       0 Package(s)

Total size: 48 M
Total download size: 28 M
Downloading Packages:
mongodb-org-tools-3.0.12-1.el5.x86_64.rpm                                                                               |  28 MB     03:29
Running rpm_check_debug
Running Transaction Test
Finished Transaction Test
Transaction Test Succeeded
Running Transaction
  Installing     : mongodb-org-server                                                                                                      1/5
  Installing     : mongodb-org-shell                                                                                                       2/5
  Installing     : mongodb-org-tools                                                                                                       3/5
  Installing     : mongodb-org-mongos                                                                                                      4/5
  Installing     : mongodb-org                                                                                                             5/5

Installed:
  mongodb-org.x86_64 0:3.0.12-1.el5

Dependency Installed:
  mongodb-org-mongos.x86_64 0:3.0.12-1.el5       mongodb-org-server.x86_64 0:3.0.12-1.el5       mongodb-org-shell.x86_64 0:3.0.12-1.el5
  mongodb-org-tools.x86_64 0:3.0.12-1.el5

Complete!
[root@MongoDB ~]#

4) MongoDB details 

[root@MongoDB ~]# service mongod status
mongod is stopped
[root@MongoDB ~]# service mongod start
Starting mongod:                                           [  OK  ]
[root@MongoDB ~]# service mongod status
mongod (pid 3672) is running...
[root@MongoDB ~]#

=> mongoDB logs 

[root@MongoDB ~]# cat /var/log/mongodb/mongod.log
2016-07-30T17:55:37.721+0530 I CONTROL  ***** SERVER RESTARTED *****
2016-07-30T17:55:37.725+0530 I CONTROL  [initandlisten] MongoDB starting : pid=3672 port=27017 dbpath=/var/lib/mongo 64-bit host=MongoDB.example.com
2016-07-30T17:55:37.725+0530 I CONTROL  [initandlisten] db version v3.0.12
2016-07-30T17:55:37.725+0530 I CONTROL  [initandlisten] git version: 33934938e0e95d534cebbaff656cde916b9c3573
2016-07-30T17:55:37.725+0530 I CONTROL  [initandlisten] build info: Linux build13.ny.cbi.10gen.cc 2.6.32-431.3.1.el6.x86_64 #1 SMP Fri Jan 3 21:39:27 UTC 2014 x86_64 BOOST_LIB_VERSION=1_49
2016-07-30T17:55:37.725+0530 I CONTROL  [initandlisten] allocator: tcmalloc
2016-07-30T17:55:37.725+0530 I CONTROL  [initandlisten] options: { config: "/etc/mongod.conf", net: { bindIp: "127.0.0.1", port: 27017 }, processManagement: { fork: true, pidFilePath: "/var/run/mongodb/mongod.pid" }, storage: { dbPath: "/var/lib/mongo", journal: { enabled: true } }, systemLog: { destination: "file", logAppend: true, path: "/var/log/mongodb/mongod.log" } }
2016-07-30T17:55:37.751+0530 I JOURNAL  [initandlisten] journal dir=/var/lib/mongo/journal
2016-07-30T17:55:37.751+0530 I JOURNAL  [initandlisten] recover : no journal files present, no recovery needed
2016-07-30T17:55:37.898+0530 I JOURNAL  [durability] Durability thread started
2016-07-30T17:55:37.898+0530 I JOURNAL  [journal writer] Journal writer thread started
2016-07-30T17:55:37.901+0530 I INDEX    [initandlisten] allocating new ns file /var/lib/mongo/local.ns, filling with zeroes...
2016-07-30T17:55:37.944+0530 I STORAGE  [FileAllocator] allocating new datafile /var/lib/mongo/local.0, filling with zeroes...
2016-07-30T17:55:37.944+0530 I STORAGE  [FileAllocator] creating directory /var/lib/mongo/_tmp
2016-07-30T17:55:38.286+0530 I STORAGE  [FileAllocator] done allocating datafile /var/lib/mongo/local.0, size: 64MB,  took 0.298 secs
2016-07-30T17:55:38.292+0530 I NETWORK  [initandlisten] waiting for connections on port 27017
2016-07-30T17:58:05.287+0530 I CONTROL  [signalProcessingThread] got signal 15 (Terminated), will terminate after current cmd ends
2016-07-30T17:58:05.287+0530 I CONTROL  [signalProcessingThread] now exiting
2016-07-30T17:58:05.287+0530 I NETWORK  [signalProcessingThread] shutdown: going to close listening sockets...
2016-07-30T17:58:05.287+0530 I NETWORK  [signalProcessingThread] closing listening socket: 6
2016-07-30T17:58:05.287+0530 I NETWORK  [signalProcessingThread] closing listening socket: 7
2016-07-30T17:58:05.288+0530 I NETWORK  [signalProcessingThread] removing socket file: /tmp/mongodb-27017.sock
2016-07-30T17:58:05.288+0530 I NETWORK  [signalProcessingThread] shutdown: going to flush diaglog...
2016-07-30T17:58:05.288+0530 I NETWORK  [signalProcessingThread] shutdown: going to close sockets...
2016-07-30T17:58:05.288+0530 I STORAGE  [signalProcessingThread] shutdown: waiting for fs preallocator...
2016-07-30T17:58:05.288+0530 I STORAGE  [signalProcessingThread] shutdown: final commit...
2016-07-30T17:58:05.288+0530 I JOURNAL  [signalProcessingThread] journalCleanup...
2016-07-30T17:58:05.288+0530 I JOURNAL  [signalProcessingThread] removeJournalFiles
2016-07-30T17:58:05.311+0530 I JOURNAL  [signalProcessingThread] Terminating durability thread ...
2016-07-30T17:58:05.394+0530 I JOURNAL  [journal writer] Journal writer thread stopped
2016-07-30T17:58:05.394+0530 I JOURNAL  [durability] Durability thread stopped
2016-07-30T17:58:05.394+0530 I STORAGE  [signalProcessingThread] shutdown: closing all files...
2016-07-30T17:58:05.395+0530 I STORAGE  [signalProcessingThread] closeAllFiles() finished
2016-07-30T17:58:05.395+0530 I STORAGE  [signalProcessingThread] shutdown: removing fs lock...
2016-07-30T17:58:05.395+0530 I CONTROL  [signalProcessingThread] dbexit:  rc: 0


[root@MongoDB ~]# mongod --version
db version v3.0.12
git version: 33934938e0e95d534cebbaff656cde916b9c3573

[root@MongoDB ~]# mongo -version
MongoDB shell version: 3.0.12


:- Uninstall MongoDB

[root@MongoDB ~]# service mongod stop
Stopping mongod:                                           [  OK  ]
[root@MongoDB ~]# service mongod status
mongod is stopped
[root@MongoDB ~]#

[root@MongoDB ~]# yum erase $(rpm -qa | grep mongodb-org)

Loaded plugins: rhnplugin, security
This system is not registered with RHN.
RHN support will be disabled.
Setting up Remove Process
Resolving Dependencies
--> Running transaction check
---> Package mongodb-org.x86_64 0:3.0.12-1.el5 set to be erased
---> Package mongodb-org-mongos.x86_64 0:3.0.12-1.el5 set to be erased
---> Package mongodb-org-server.x86_64 0:3.0.12-1.el5 set to be erased
---> Package mongodb-org-shell.x86_64 0:3.0.12-1.el5 set to be erased
---> Package mongodb-org-tools.x86_64 0:3.0.12-1.el5 set to be erased
--> Finished Dependency Resolution

Dependencies Resolved

===============================================================================================================================================
 Package                                 Arch                        Version                              Repository                      Size
===============================================================================================================================================
Removing:
 mongodb-org                             x86_64                      3.0.12-1.el5                         installed                       0.0
 mongodb-org-mongos                      x86_64                      3.0.12-1.el5                         installed                       13 M
 mongodb-org-server                      x86_64                      3.0.12-1.el5                         installed                       26 M
 mongodb-org-shell                       x86_64                      3.0.12-1.el5                         installed                       14 M
 mongodb-org-tools                       x86_64                      3.0.12-1.el5                         installed                       92 M

Transaction Summary
===============================================================================================================================================
Install      0 Package(s)
Update       0 Package(s)
Remove       5 Package(s)

Is this ok [y/N]:y

[root@MongoDB ~]# rm -r /var/log/mongodb
[root@MongoDB ~]# rm -r /var/lib/mongo