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{"id":763,"date":"2018-03-12T16:39:29","date_gmt":"2018-03-12T11:09:29","guid":{"rendered":"http:\/\/www.webhostingchennai.co.in\/blog\/?p=763"},"modified":"2019-04-03T12:35:05","modified_gmt":"2019-04-03T07:05:05","slug":"installing-opennms-on-centos-7","status":"publish","type":"post","link":"https:\/\/www.webhostingchennai.co.in\/blog\/installing-opennms-on-centos-7\/","title":{"rendered":"Installing OpenNMS on CentOS 7 – Step by Step Guide"},"content":{"rendered":"

Installing OpenNMS on CentOS 7<\/span><\/strong><\/h4>\n
OpenNMS<\/strong> is a carrier-grade, highly integrated, open source platform designed for network monitoring solutions<\/a>. There are two distributions of OpenNMS: Meridian and Horizon.<\/p>\n
Meridian<\/strong> is advisable for enterprises and businesses looking for stability and long term support.<\/p>\n
Horizon<\/strong> is the place where innovation happens quickly and is ideal for monitoring new technologies and IT ecosystems. Both distributions are completely open source.<\/p>\n
Traditionally, installing OpenNMS is a relatively complicated job because it involves multiple technologies, including Oracle Java 8 JDK, PostgreSQL, OpenNMS, systemd, etc. Thankfully, OpenNMS provides an official quickstart install script for CentOS 7, which can greatly simplify the procedures.<\/p>\n
Warning: This script is for a fresh installation of OpenNMS only. If you have installed an earlier version of OpenNMS on the system, running this script might cause unintended consequences.<\/em><\/p>\n
cd\r\ncurl -L https:\/\/github.com\/<\/a>opennms-forge\/opennms-install\/archive\/1.1.tar.gz | tar xz\r\ncd opennms-install-1.1\r\nbash bootstrap-yum.sh\r\n<\/pre>\n
The script will automatically install all required components for running OpenNMS. During the process, you only need to confirm the installation and provide database credentials as follows.<\/p>\n
\n
If you want to proceed, type YES: YES<\/code><\/li>\n
Enter database username: opennmsuser<\/code><\/li>\n
Enter database password: yourpassword<\/code><\/li>\n<\/ul>\nRemember to replace the username and password above with your own.<\/p>\n
Creating Database\r\n==================\r\nPostgreSQL initialize ... OK\r\nPostgreSQL set auth from ident to md5 ... OK\r\nStart PostgreSQL database ... OK\r\nPostgreSQL systemd enable ... OK\r\n\r\nEnter database username: whc_opennms\r\nEnter database password:\r\n\r\n\r\nGenerate OpenNMS data source config ... OK\r\nInitialize OpenNMS ...\r\n\r\n\r\nCongratulations\r\n---------------\r\n\r\nOpenNMS is up and running. You can access the web application with\r\n\r\nhttp:\/\/this-systems-ip:8980\r\n\r\nLogin with username admin and password admin\r\n\r\nPlease change immediately the password for your admin user!\r\nSelect in the main navigation \"Admin\" and go to \"Change Password\"<\/pre>\n
If all went well, you will see the congratulations message.<\/p>\n
Before you can access OpenNMS using a web browser, you need to modify firewall rules to allow inbound traffic on port 8980.<\/p>\n
firewall-cmd --zone=public --add-port=8980\/tcp --permanent\r\nsystemctl reload firewalld.service\r\n<\/pre>\n
Finally, point your favorite web browser to http:\/\/ip_address:8980<\/code>, and log in with the default username admin<\/code> and the default password admin<\/code>.<\/p>\n
<\/p>\n
<\/p>\n
After Adding Servers<\/strong><\/span><\/p>\n
<\/p>\n
If you like this post, please share your comments to improve better.<\/p>\n
For installing and configuring, please click here<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"
...<\/p>\n","protected":false},"author":1,"featured_media":930,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[40,206],"tags":[176,174,175],"class_list":["post-763","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-monitoring-tools","category-others","tag-oepnnms","tag-opennms-installation","tag-opennms-on-centos"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/i0.wp.com\/www.webhostingchennai.co.in\/blog\/wp-content\/uploads\/2018\/03\/ONMS.jpg?fit=660%2C260&ssl=1","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p9NOHH-cj","jetpack-related-posts":[{"id":590,"url":"https:\/\/www.webhostingchennai.co.in\/blog\/installing-cwp-on-centos-7\/","url_meta":{"origin":763,"position":0},"title":"Installing CentOS Web Panel on Centos 7","author":"Cavin","date":"August 5, 2017","format":false,"excerpt":"In this tutorial we are going to see, how to install and configure\u00a0CentOS Web Panel on Centos 7 About CentOS Web Panel CentOS Web panel(CWP),\u00a0is a free, Open Source control panel that can be widely used for deploying a Web hosting environment easily. 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Along with this, it is capable\u00a0 to maintain Graphs, Data Sources,\u2026","rel":"","context":"In "MONITORING TOOLS"","block_context":{"text":"MONITORING TOOLS","link":"https:\/\/www.webhostingchennai.co.in\/blog\/category\/monitoring-tools\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.webhostingchennai.co.in\/blog\/wp-content\/uploads\/2017\/07\/cacti.jpg?fit=640%2C260&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.webhostingchennai.co.in\/blog\/wp-content\/uploads\/2017\/07\/cacti.jpg?fit=640%2C260&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.webhostingchennai.co.in\/blog\/wp-content\/uploads\/2017\/07\/cacti.jpg?fit=640%2C260&ssl=1&resize=525%2C300 1.5x"},"classes":[]},{"id":1412,"url":"https:\/\/www.webhostingchennai.co.in\/blog\/installing-icinga-web-2-on-centos7\/","url_meta":{"origin":763,"position":2},"title":"Installing Icinga web 2 on CentOS7 \/ RHEL 7","author":"Cavin","date":"March 30, 2019","format":false,"excerpt":"Installing Icinga web 2 on CentOS7 \/ RHEL 7 In this post we are going to see the installation of Icinga web 2, a web interface for Icinga 2 where we can monitor our whole infrastructure in single place. 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