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How To Install Opmanager On CentOS 7.6

Installation Of Opmanager On Centos 7.6

OpManager is a network monitoring software which automatically discovers your network, group your devices, services, process status and more. In this tutorial learn the basic installation of OpManager on CentOS 7.6

Installation process

Check the java version by using the following command

[root@linuxhelp ~]# java -version
openjdk version "1.8.0_252"
OpenJDK Runtime Environment (build 1.8.0_252-b09)
OpenJDK 64-Bit Server VM (build 25.252-b09, mixed mode)

List out the files by running the following command.

[root@linuxhelp ~]# ls -la
total 522740
dr-xr-x---. 14 root root      4096 Jul  7 14:43 .
dr-xr-xr-x. 18 root root      4096 Jul  6 16:42 ..
-rw-r--r--   1 root root 215957833 Jul  6 12:39 ManageEngine_OpManager_Plus_64bit.bin

Move the opmanager to /opt directory

[root@linuxhelp ~]# mv ManageEngine_OpManager_Plus_64bit.bin /opt

Enter into /opt directory

[root@linuxhelp ~]# cd /opt/

List out the files

[root@linuxhelp opt]# ls -al
total 210912
drwxr-xr-x.  3 root root      4096 Jul  7 14:57 .
dr-xr-xr-x. 18 root root      4096 Jul  6 16:42 ..
-rw-r--r--   1 root root 215957833 Jul  6 12:39 ManageEngine_OpManager_Plus_64bit.bin
drwxr-xr-x.  2 root root      4096 Oct 31  2018 rh

Set the ownership and permission for OpManager

[root@linuxhelp opt]# chown -R root:root ManageEngine_OpManager_Plus_64bit.bin

[root@linuxhelp opt]# chmod -R 775 ManageEngine_OpManager_Plus_64bit.bin

And then list out the files

[root@linuxhelp opt]# ls -la
total 210912
drwxr-xr-x.  3 root root      4096 Jul  7 14:57 .
dr-xr-xr-x. 18 root root      4096 Jul  6 16:42 ..
-rwxrwxr-x   1 root root 215957833 Jul  6 12:39 ManageEngine_OpManager_Plus_64bit.bin
drwxr-xr-x.  2 root root      4096 Oct 31  2018 rh

To install the opmanager run the following command

[root@linuxhelp opt]# ./ManageEngine_OpManager_Plus_64bit.bin
Preparing to install...
Extr0acting the JRE from the installer archive...
Unpacking the JRE...
Extracting the installation resources from the installer archive...
Configuring the installer for this system's environment...

Launching installer...

This is the welcome step of opmanager Accept the terms and condition and click next Select the installation directory for opmanager Select the port number for web server The Opmanager installation is in process The installation is completed now click done

Go to the opmanager directory

[root@linuxhelp opt]# cd ManageEngine/OpManager/

Enter into the bin directory

[root@linuxhelp OpManager]# cd bin/

List out the files

[root@linuxhelp bin]# ls -la
total 1872
drwxrwxr-x  3 root root   4096 Jul  7 15:02 .
drwxr-xr-x 38 root root   4096 Jul  7 15:02 ..
-rwxrwxr-x  1 root root   2187 Jul  3 11:17 about.txt
-rwxrwxr-x  1 root root   5493 Jul  3 11:17 app_ctl.sh
-rwxrwxr-x  1 root root   1665 Jul  3 11:17 JREMigration.sh
-rwxrwxr-x  1 root root   2541 Jul  3 11:17 linkAsService.sh
.
.
-rwxrwxr-x  1 root root   1787 Jul  3 11:17 VWinstall.sh
-rwxrwxr-x  1 root root    366 Jul  3 11:17 VW_load.sh
-rwxrwxr-x  1 root root    325 Jul  3 11:17 VWoptimizedb.sh
-rwxrwxr-x  1 root root    984 Jul  3 11:17 VWreinitializeDB.sh
-rwxrwxr-x  1 root root    411 Jul  3 11:17 VWremoteload.sh
-rwxrwxr-x  1 root root    335 Jul  3 11:17 VWremoteoptimizedb.sh
-rwxrwxr-x  1 root root    628 Jul  3 11:17 VWserver_lin.rsp
-rwxrwxr-x  1 root root   1877 Jul  3 11:17 VWserver_win.rsp
-rwxrwxr-x  1 root root    788 Jul  3 11:17 VWstartdb.sh
-rwxrwxr-x  1 root root    464 Jul  3 11:17 VWstopdb.sh
-rwxrwxr-x  1 root root    492 Jul  3 11:17 VWuninstall.sh
-rwxrwxr-x  1 root root 641544 Jul  3 11:17 wrapper
-rwxrwxr-x  1 root root 815504 Jul  3 11:17 wrapper.exe

Run the following command to start the opmanager as daemon service

[root@linuxhelp bin]# ./linkAsService.sh
========================================
Running Opmanager as Service
========================================
Opmanager Directory 	-->  /opt/ManageEngine/OpManager/bin
Opmanager Service name 	-->  OpManager.service
----------------------------------------
OpManager.service successfully placed in /etc/systemd/system/ directory
----------------------------------------
Enabling services - 
Created symlink from /etc/systemd/system/multi-user.target.wants/OpManager.service to /etc/systemd/system/OpManager.service.
Opmanager service is added successfully
========================================
To start the service login as superuser and use - systemctl start OpManager.service
=======================================

Once the process is completed start Opmanager service

[root@linuxhelp bin]# systemctl start OpManager.service

Check the opmanager status

[root@linuxhelp bin]# systemctl status OpManager.service
? OpManager.service - OpManager As Service
   Loaded: loaded (/etc/systemd/system/OpManager.service; enabled; vendor preset: disabled)
   Active: active (exited) since Tue 2020-07-07 15:05:25 IST; 1min 26s ago
  Process: 66602 ExecStart=/opt/ManageEngine/OpManager/bin/na_service start (code=exited, status=0/SUCCESS)
 Main PID: 66602 (code=exited, status=0/SUCCESS)
    Tasks: 61
   CGroup: /system.slice/OpManager.service
           +-66616 ./wrapper ../conf/wrapper.conf wrapper.pidfile=.//OpManager.pid wrapper...
           +-66631 /opt/ManageEngine/OpManager/jre/bin/java -Dcatalina.home=.. -Dserver.ho...

Jul 07 15:05:24 linuxhelp systemd[1]: Starting OpManager As Service...
Jul 07 15:05:25 linuxhelp systemd[1]: Started OpManager As Service.
Jul 07 15:05:39 linuxhelp su[66721]: (to postgres) root on none

Go to the browser and enter ip address and port number Enter the default credentials and log in to opmanager Go to the settings Select the add device Enter the ip address of adding device and add it to opmanager monitoring The device is added successfully to OpManager With this the installation of Opmanager on centos 7.6 comes to end

Tag : Opmanager CentOS
FAQ
Q
What is the default login credential for OpManager?
A
The default Login credential is admin: admin
Q
How many User type authentication available on Opmanager?
A
There are three User type authentication available,

Local Authentication

Radius Authentication

AD Authentication
Q
What is OpManager?
A
OpManager is a network monitoring software that can automatically discover your network, group your devices, services, process status and so on.
Q
Why do i need to set SNMP to write community on the Source Router?
A
Both, the SNMP read and write community string needs to be set on the source router. The write community is used to configure the IPSLA on the device while the read community is used by OpManager to gather performance data from the router
Q
Is SNMP mandatory for using OpManager?
A
No. The monitored devices need not necessarily have SNMP if you just want to check for availability. OpManager relies on Ping to check the device availability. For monitoring other host resources, traffic, etc, OpManager requires SNMP to be enabled on the monitored devices.