Browsing articles tagged with

linux

10 examples of Linux ss command to monitor network connections

ss - socket statistics In a previous tutorial we saw how to use the netstat command to get statistics on network/socket connections. However the netstat command has long been deprecated and replaced by the ss command from the iproute suite of tools. The ss command is capable of showing more information than the netstat and is faster. The netstat command reads various ...

How to setup EPEL repository on CentOS 5/6

What is EPEL repository EPEL (Extra Packages for Enterprise Linux) is a project from the Fedora group that maintains a repository of software packages that are not already present on RHEL/CentOS. The repository is compatible with RHEL and all close derivates like CentOS and Scientific Linux. By using epel we can easily install many packages (around 10,000) with yum command, that ...

Install Virtualbox 4.3 on Ubuntu / Debian / Fedora

VirtualBox VirtualBox is a free virtualisation software for x86 based systems and is available for most of the popular OSes like linux, mac and windows. It runs on a host system and supports running other OSes as guest. It earlier belonged to Sun and now to Oracle. At the time of this post, virtualbox 4.3.2 is the latest version and was released ...

Install Nginx + Php FPM + APC on CentOS 6.4

LEMP server A lemp server runs Nginx web server along with Php and Mysql or MariaDB on a Linux system. Nginx is increasing becoming popular because of its lightweight structure and ability to handle large amounts of traffic in an optimum manner. Mariadb is the replacement for mysql because mysql is not very free anymore. In this tutorial we shall be ...

Xubuntu 13.10 review – good as always

Xubuntu 13.10 Its over a week since Xubuntu 13.10 was released which is based on Ubuntu 13.10 Saucy Salamander and I finally got time to take a look at it. If you are new to this, then know that Xubuntu is a Xfce desktop based spin/variant of Ubuntu. It is not a derivative, just the same ubuntu wrapped with the xfce ...

5 commands to check memory usage on Linux

Memory Usage On linux, there are commands for almost everything, because the gui might not be always available. When working on servers only shell access is available and everything has to be done from these commands. So today we shall be checking the commands that can be used to check memory usage on a linux system. Memory include RAM and swap. It ...

Open http port ( 80 ) in iptables on CentOS

Iptables firewall I was recently setting up a web server on centos with nginx and php. The installation of nginx was fine, but the http port of the system was not accessible from outside. This is because centOS by default has some iptables firewall rules in effect. Only the ssh port (22) was accessible and remote shell worked. So its necessary ...

Monitor disk io on linux server with iotop and cron

Iotop - Disk Input Output usage Recently my server was giving notifications of disk io activity rising above a certain threshold at regular intervals. My first guess was that some cronjob task was causing that. So I tried to check various cron tasks to find out which task or process was causing the io burst. On servers specially its always a ...

Install the Pantheon desktop on Ubuntu

Pantheon desktop environment Pantheon is a new desktop environment that comes with elementary OS. It has a mac like look and feel and has been designed very well. It looks superb specially on laptops and can give you a cool looking desktop that you want to show off. It can be installed on Ubuntu if you want to get the elementary OS ...

Linux mail command examples – send mails from command line

Send mails from command-line Being able to send emails from command-line from a server is quite useful when you need to generate emails programatically from shell scripts or web applications for example. This tutorial explains, how to use to the mail command on linux to send mails from the command-line using the mail command. How the mail command works For those who are curious ...

Pages:1234567»


Connect with us