Iotop is an open-source and free utility Linux command used to display the statistics of disk input/output by processor/threads and print the summary which gets refreshed every second. It is quite similar to the top command, except that iotop monitors just disk i/o and not other metrics. This command is particularly useful for system administrators… Read More »
sar (System Activity Reporter) is a command line tool used to collect, report, and analyze system activity information in Linux and other Unix-based operating systems. In other words, it gathers information and provides insights on system activity, such as CPU utilization, memory usage, I/O operations, network activity, disk usage, power management, and much more, which… Read More »
Spam free email with SpamAssassin If you are running your own mailbox on a server using Postfix and Dovecot then it is imperative to install an anti-spam software to protect your mailbox from getting bombed with incoming spam mails. And for this SpamAssassin is one of the best solutions available out there. It is quite… Read More »
Dante Socks5 Server Dante is a socks5 server that you can use to setup a socks5 proxy on your ubuntu or debian machine. In this quick tutorial we shall learn how to setup dante and use authentication. With authentication enabled, the dante proxy server would require all clients to provide login details in order to… Read More »
Running desktop on remote server Usually you would use the ssh terminal when working on a remote linux server. But there can be times when you need to run a gui app on the server and keep it running for quite some time. Recently I had to do something similar and therefore I setup an… Read More »
Socks proxy via ssh Tunnel I often come across websites that block me because my isp is on some blacklist somewhere. The only option then is to access the website through some kind of proxy server, which are quite hard to find. The best solution for me was to use my own linux servers as… Read More »
Monit is a powerful tool to monitor background services and processes on your linux server. This post shows how to setup and configure Monit on Ubuntu and Debian based servers.
This tutorial shows you how to install and configure a mail server with Postfix and Dovecot on a Ubuntu or Debian based linux server. Postfix is the SMTP server and Dovecot is the IMAP/POP server.
Quick tutorial with simple examples of how to use the mailx command on Linux to send emails from command line with features like attachments and external smtp servers.
Tutorial on how to monitor network and socket connections on linux with ss command ( socket statistics )
How to setup and configure Postfix mail server to forward emails on Ubuntu or Debian based Linux servers.
Here is a list of command line tools that can be used to monitor system resources on your Linux server like cpu, memory, network and processes
A quick tutorial with simple examples on how to use the scp (secure copy) command to transfer files securely on Linux.
Tutorial on how to use collectl command to monitor system resources like cpu, disk io, network on a linux system.
Configure Vsftpd (ftp server) to use SSL/TLS encryption on Ubuntu and CentOS based Linux systems.
This tutorial explains how to use the ps command on linux with examples
This guide shows you how to install and configure Apache web server with php FPM using mod proxy fcgi on Ubuntu or Debian based linux servers
Tutorial on how to install Nginx web server with Php FPM and APC on a CentOS 6.4 linux server.
Quick guide on How to install and configure the Apache http web server on Ubuntu. Also configure virtual hosts to setup multiple domains
Here is a list of commands along with examples, which can be used to check memory (RAM and swap) usage on Linux system.