How to Install Virtualmin on CentOS 7 / RHEL 7 / Oracle Linux 7

Virtualmin is an advanced web hosting control panel that is very flexible and powerful for Linux and UNIX systems. It is based on the well-known Open Source web-based system management, Webmin. It is a Webmin module for managing multiple virtual hosts, multiple virtual domains, mailboxes, databases, applications, and the entire server, from one comprehensive and […]

How to Configure Firewalld in Linux CentOS 7 / RHEL7

Linux kernel includes powerful network filtering subsystem called Netfilter. It allows kernel modules to inspect each packet crossing the linux system such as to allow or drop incoming and outgoing network packet. In older Red Hat Enterprise Linux (RHEL) release such as RHEL 5 and RHEL 6, iptables was the main method of interacting with […]

How to Install Webmin 1.720 on CentOS 6/RHEL 6

Webmin is a web-based free software that is created for the administration of the system for linux and unix . It is managed through the graphical web interface that is very user friendly and suitable for beginners who are less familiar with linux command line utility. However, a recent version can also be installed and […]

How to Setup NetHogs – Monitor Bandwidth Usage Per Process in Linux

NetHogs is a opensource tools to monitor network bandwidth that was used by the process and program in linux operating system. NetHogs does not rely on a special kernel module to be loaded. When you hit the high network traffic issue on your linux server, you can immediately find which PID is causing the issue. […]

How to Setup Collectl – Linux Performance Monitoring

Collectl is a linux performance monitoring tools that grabs as much detail as possible from the /proc filesystem and it does a lot more than most other tools. Compare to sar, collectl has some capabilities that sar does not have. Collectl can gather and post-process the performance data and also can save the performance data […]

How to Setup psacct or acct – Monitor User Activity in Linux

It is very important to know what are the activities for applications and users in linux operating system. This will very useful in later time or in case of problems. For this purpose, i would recommend psacct or acct tools to be install. psacct or acct is a free monitoring program to monitor users and […]

How to Setup Sar (Sysstat) – Monitor Linux System Performance

Sysstat contains various utilities to collect and historize performance and monitor server activity on the linux. Sar is part of the sysstat package. by using sar, we can collect, report, or save system resource utilization information. It will help system administrator to troubleshoot performance issues, or to optimize performance. This post will show how to […]

How to Setup nmon – Monitor Linux Performance

Nmon (Nigel’s Monitor) is a great performance monitoring tool for Linux operating system. It was written initially for AIX to monitor system performance. nmon for Linux can be used to collect informations on CPU, memory, network, disk I/O, top processes etc. System administrator can use nmon as a tuner or benchmark tool that will provide […]

How to Setup Monitorix – Network and System Monitoring Tool for Linux

Monitorix is an open source and lightweight system monitoring tool designed to monitor network and system resources in linux/UNIX operating system. Monitorix can collects network and system performce and also resources and then display the informations into graphs. it will help system adn network administrator to detect abnormal activities and detecting bottlenecks. This post will […]

How to Install Zabbix 2.2 Server on CentOS 6.5

ZABBIX is an enterprise-class open source monitoring solution designed to monitor servers and various network services. Zabbix will perform simple checks can verify the availability and responsiveness of standard services. It was created by Alexei Vladishev. Follow this step to install zabbix 2.2 server on CentOS 6.5 : 1. Install httpd, php and MySQL : […]

How to Install and use Glances – System Monitor In Ubuntu

There are various default system monitor tools in Ubuntu that come with basic functions. However, there is recommended powerful free monitoring called Glances – An eye on your system. Glances is the monitoring tools that used to monitor GNU/Linux or BSD operating system from a command line interface and it uses the library libstatgrab to […]

How to Install Nagios Monitoring Server on CentOS 6.5

Nagios is one of the alternate open source computer, network and infrastructure monitoring system that will help organizations to identify and resolve IT infrastructure problems before they affect critical business processes. Nagios provides host, service and network monitoring capabilities and was designed with scalability and flexibility. With complete monitoring and alerting, nagios allows you to […]

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