Munin Plugins for MongoDB

Plugins

• mongo_ops : operations/second
• mongo_mem : mapped, virtual and resident memory usage
• mongo_btree : btree access/misses/etc...
• mongo_conn : current connections
• mongo_lock : write lock info
• mongo_docs : number of documents (inserted, updated...)

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Adding Apache Reporting To Munin

When you first install a Munin node it will try to install as many plugins as it can so that it can report on different things. For example, if you have a Varnish server running then Munin will detect this and enable the plugins so that it can report on the activity of Varnish. Once you have started getting data through to your Munin server then you can turn on plugins on the nodes to get more data.

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PHP 5.5 on CentOS/RHEL 7.1, 6.7 and 5.11 via Yum

PHP 5.5.28 has been released on PHP.net on 6th August 2015, and is also available for CentOS/RHEL 5.11, 6.7 and 7.1 at Webtatic via Yum.

PHP 5.5 adds new features such as:

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How To Install and Configure Config Server Firewall (CSF) on Ubuntu

Introduction

Config Server Firewall (or CSF) is a free and advanced firewall for most Linux distributions and Linux based VPS. In addition to the basic functionality of a firewall – filtering packets – CSF includes other security features, such as login/intrusion/flood detections. CSF includes UI integration for cPanel, DirectAdmin and Webmin, but this tutorial only covers the command line usage. CSF is able to recognize many attacks, such as port scans, SYN floods, and login brute force attacks on many services. It is configured to temporarily block clients who are detected to be attacking the cloud server.

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Setup ConfigServer Security and Firewall (CSF) on CentOS 7

ConfigServer Security & Firewall (CSF) is a stateful packet inspection firewall (SPI), login/intrusion detection, and security application for Linux servers. It is a very popular security suite, but isn't officially supported yet on CentOS 7.

CentOS 7 uses firewalld rather than iptables. A quick internet search will show that many faithful CentOS users find firewalld far too complicated for their needs and are reverting back to iptables. Iptables was the standard firewall for CentOS 5 and 6.

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How to Backup and Restore MongoDB using mongodump and mongorestore

mongodump is an useful tool to backup Mongo database. Apart from taking a cold backup, it can also take hot backup. i.e You can connect to a running instance of MongoDB and take a backup even when users are using the database.

mongorestore is an useful tool to restore the MongoDB backup that was taken using mongodump utility.

This tutorial provides several mongodump and mongorestore command examples that you can use to backup and restore a MongoDB using both .

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