Centreon Lab - HackMD

- yyv-centreon - yyv-web Based on Centreon's official documentation, they are 3 ways of deploying the application namely: - ready-to-use virtual machine. - RPM or DEB packages - Installation from source During this lab i used the 'RPM packages' ### 1. Create and configure both virtual machines. **Addressing the servers** - Centos server Modify the file : `sudo vi /etc/sysconfig/network-scripts/ifcfg-eth0` as shown below ![](https://hackmd.io/_uploads/B15XPqnFn.png) Restart the network service : `sudo systemctl restart network` ![](https://hackmd.io/_uploads/S1dH_52Kh.png) - Windows server ![](https://hackmd.io/_uploads/BkILZCnFh.png) ![](https://hackmd.io/_uploads/HJGCVChFh.png) ### 2. Install and configure Centreon on the Linux virtual machine. #### Prerequisites - Installing dependencies and repositories necessary to deploy Centreon ```!bash yum install -y centos-release-scl` yum install -y yum-utils yum install -y https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm yum install -y https://rpms.remirepo.net/enterprise/remi-release-7.rpm yum-config-manager --enable remi-php81 ``` ![](https://hackmd.io/_uploads/BJBri52Kn.png) ```!bash yum update sed -i s/^SELINUX=.*$/SELINUX=disabled/ /etc/selinux/config reboot systemctl stop firewalld systemctl disable firewalld ``` - Installing MariaDB repository ![](https://hackmd.io/_uploads/H1Hasq3Yh.png) - Centreon repository ![](https://hackmd.io/_uploads/Syyz29hK2.png) - Installation of centreon + database ```!bash yum install -y centreon systemctl daemon-reload systemctl restart mariadb ``` ![](https://hackmd.io/_uploads/Sko5nqnt2.png) ![](https://hackmd.io/_uploads/rJXJJjnK3.png) - Set the PHP time zone `echo "date.timezone = Europe/Brussels" >> /etc/php.d/50-centreon.ini` ![](https://hackmd.io/_uploads/B1qNyi3Fn.png) - Start services at boot time `systemctl enable php-fpm httpd24-httpd centreon cbd centengine gorgoned snmptrapd centreontrapd snmpd` - Secure the database `mysql_secure_installation` ![](https://hackmd.io/_uploads/H1Uhys2Kn.png) ![](https://hackmd.io/_uploads/B1YCJihK3.png) - Web Installation Starting the web service: `systemctl start httpd24-httpd` ![](https://hackmd.io/_uploads/rkkkmo3Yh.png) ![](https://hackmd.io/_uploads/SkBwQjhKn.png) ![](https://hackmd.io/_uploads/SkRv7j3K3.png) ![](https://hackmd.io/_uploads/ByOF7snFn.png) ![](https://hackmd.io/_uploads/r1dAmi2th.png) ![](https://hackmd.io/_uploads/S1ILSsht2.png) ![](https://hackmd.io/_uploads/r1PtSs3tn.png) ![](https://hackmd.io/_uploads/BJgqrohYh.png) ![](https://hackmd.io/_uploads/SynsSsnKn.png) ![](https://hackmd.io/_uploads/rkYnHshYn.png) ![](https://hackmd.io/_uploads/SkXJ8j2F2.png) ### 3. Poller Configuration - This is done following the steps shown below: ![](https://hackmd.io/_uploads/BkipwsnYh.png) ![](https://hackmd.io/_uploads/rkgP_o2Yh.png) ![](https://hackmd.io/_uploads/HySlto3t2.png) - After configuration the poller is running ![](https://hackmd.io/_uploads/HkEzYinYh.png) ### 4. Create 2 host groups (trigram-linux / trigram-windows) - This is done as shown below: ![](https://hackmd.io/_uploads/HyrYFi2Y2.png) ![](https://hackmd.io/_uploads/SkRnFj3K2.png) - results: ![](https://hackmd.io/_uploads/rJKRFj3Fn.png) ### 5. Create 2 contact templates (trigram-administrator / trigram-engineer) - This is done as shown below: ![](https://hackmd.io/_uploads/B19z9snt2.png) ![](https://hackmd.io/_uploads/Bkvtns2Kh.png) - Results: ![](https://hackmd.io/_uploads/r1St5i2tn.png) ### 6. Create 4 users (trigram-linux-adm / trigram-linux-eng / trigram-windows-adm/ trigram-windows-eng) ![](https://hackmd.io/_uploads/Hklr3o2K3.png) ![](https://hackmd.io/_uploads/Hk1i3j3tn.png) ### 7. Create 8 ACLs: a. Create 4 access groups: ![](https://hackmd.io/_uploads/SklAns3t3.png) ![](https://hackmd.io/_uploads/HkASaontn.png) ![](https://hackmd.io/_uploads/H1s10jnKn.png) b. Create 2 ACL Menu Access ![](https://hackmd.io/_uploads/SJDEAs3K2.png) ![](https://hackmd.io/_uploads/rkO2RohKh.png) ![](https://hackmd.io/_uploads/BJXfynnK2.png) ![](https://hackmd.io/_uploads/By6GJ3ht3.png) c. Create 2 ACL Resources Access ![](https://hackmd.io/_uploads/r1fUyh3F2.png) ![](https://hackmd.io/_uploads/BkRfl22Fh.png) ![](https://hackmd.io/_uploads/BJAulh2F2.png) ![](https://hackmd.io/_uploads/SkRFghht2.png) 8. Create 4 contact groups (trigram-linux-adm-group / trigram-linux-eng-group / trigram-windows-adm-group / trigram-windows-eng-group) ![](https://hackmd.io/_uploads/rJhAxn2K3.png) ![](https://hackmd.io/_uploads/ByT4bn2t3.png) ![](https://hackmd.io/_uploads/ryRCb2nY2.png) 9. Monitor linux virtual machine (Plugin Custom Centreon Central/Database/Poller) - Installing the necessary plugins ![](https://hackmd.io/_uploads/HkzbEhnK3.png) - Adding centreon server with snmp connection ![](https://hackmd.io/_uploads/HkjYu22t3.png) ![](https://hackmd.io/_uploads/rJLJL2ht2.png) - Monitored Resources ![](https://hackmd.io/_uploads/ryNB0nhK2.png) 10. Monitor Windows virtual machine ![](https://hackmd.io/_uploads/SkzmB03Y3.png) ![](https://hackmd.io/_uploads/SyqkI03F3.png) ![](https://hackmd.io/_uploads/BJaiU0nF2.png) 11. Use the custom script on Windows host to monitor the size of the folder “drivers” (C:\Windows\System32\drivers) [Warning: 100 Mo / Critical: 150 Mo] ![](https://hackmd.io/_uploads/B1g05pnY3.png) --- ![](https://hackmd.io/_uploads/B1qePCnYn.png)