Monitoring related tutorial/FAQ

How to install and use Monit on Ubuntu/Debian Linux server as process supervision tool

in Debian / Ubuntu, Linux, Monitoring, Networking last updated June 25, 2017

How do I install and configure monit to restart services such as Nginx/Apache/OpenVPN server when failed on Debian or Ubuntu Linux?

FreeBSD Unix Find Out Which Programs Are Listening On a Given Port Number

in FreeBSD, FreeBSD Jails (VPS), Monitoring, Networking, Security, Troubleshooting, UNIX last updated November 24, 2016

I‘m a new FreeBSD Unix system user. How can I find out the process/programs names listing on a certain port on a FreeBSD Unix systems using command line? How do I lookup the process which is currently bound to the given network port on a FreeBSD server?

Linux / Unix logtop: Realtime Log Line Rate Analyser

in Debian / Ubuntu, Linux, Monitoring, Ubuntu Linux, UNIX last updated July 23, 2014

How can I analyze line rate taking log file as input on a Linux system? How do I find the IP flooding my Apache/Nginx/Lighttpd web-server on a Debian or Ubuntu Linux?

Linux: Keep An Eye On Your System With Glances Monitor

in CentOS, Debian / Ubuntu, Linux, Monitoring, RedHat and Friends last updated April 1, 2017

Is there is a tool that can provide me a maximum of information (such as cpu, disk I/O, network, nfsd, memory and more) about my Linux/Unix server in a minimum of space in a terminal?

CentOS / RHEL: Install iftop To Display Bandwidth Usage Per interface By Host

in CentOS, Monitoring, Networking, RedHat and Friends last updated November 11, 2013

I am running Red Hat Enterprise Linux on IBM based system. How do I display bandwidth usage on an interface by host in real time using command line option? How do I monitor bandwidth usage in a real time on RHEL or CentOS Linux based server? How can I install iftop utility on CentOS or RHEL server using the yum command?

CentOS / RHEL: Check If A Service Is Running Or Not

in CentOS, Monitoring, RedHat and Friends last updated December 13, 2013

How do I find out if a service such as MySQL or Apache running on my Centos/RHEL/Fedora Linux server?

CentOS / RHEL: Install atop (Advanced System & Process Monitor) Utility

in CentOS, Commands, Monitoring, Package Management, RedHat and Friends last updated December 17, 2013

I do not like top. How do I install Advanced System & Process Monitor tool called atop on CentOS or Red Hat Enterprise Linux 5.x/6.x+ based system using yum command?

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