Servers

Useful list of commands for linux server management

List of checks that you can perform on a linux server to try and figure out why it keeps going down Disk Space: df -h (Make sure you have enough disk space) Memory: free -m (Check you're not out of memory) Processes / Load average top (shift + m) htop (Check for processes that are taking up a lot of…

Setup SSL Certificate on Apache and Ubuntu 12.04

How to Create a SSL Certificate on Apache for Ubuntu 12.04   About SSL Certificates A SSL certificate is a way to encrypt a site's information and create a more secure connection. Additionally, the certificate can show the virtual private server's identification information to site visitors. Certificate Authorities can issue SSL certificates that…

Syncronize Files Between Two Ubuntu Servers Using Unison and Incron

File Synchronization Between Two Ubuntu Servers using Unison Unison is a file-synchronization tool for Unix and Windows. It allows two replicas of a collection of files and directories to be stored on different hosts (or different disks on the same host), modified separately, and then brought up to date by propagating…

Install apache2 mod_security and mod_evasive on Ubuntu 12.04

This guide is intended as a relatively easy step by step guide to: Install and configure Apache2 ModSecurity and mod_evasive modules on Ubuntu 12.04 LTS server. Things have become much easier than before installing both these two excellent security modules for Apache2 in Ubuntu 12.04 LTS, as both modules…

How To Uninstall Apache 2

This is a little tip that we can share to manage your linux box server, below you can see the consolle command to uninstall apache webserver sudo update-rc.d -f apache2 remove

Setting the Hostname (FQDN) in Linux Servers

Here we will show how to set your system's hostname and fully qualified domain name (FQDN). Your hostname should be something unique. Some people name their servers after planets, philosophers, or animals. Note that the system's hostname has no relationship to websites or email services hosted on…

Install Wordpress, Nginx, PHP, and Varnish on Ubuntu 12.04

About Varnish Varnish is an HTTP accelerator and a useful tool for speeding up a server, especially during a times when there is high traffic to a site. It works by redirecting visitors to static pages whenever possible and only drawing on theserver itself if there is a need…

Ubuntu UFW Firewall - Uncomplicated Firewall for Ubuntu

Introduction to UFW - Uncomplicated Firewall The default firewall configuration tool for Ubuntu is ufw. Developed to ease iptables firewall configuration, ufw provides a user friendly way to create an IPv4 or IPv6 host-based firewall. By default UFW is disabled. Gufw is a GUI that is available as a frontend. Basic Syntax and…

Programming

The HTML5 Quick Learning Guide

HTML5 syntax is compatible with both HTML4 and XHTML1. Want to close empty elements with a slash? Go for it.…

How to Create a Password Strength Indicator With jQuery

If you are building a system that allows the users to login in, then it is always a good idea…

21 PHP Libraries You Should Know About

The aim of the Standard PHP Library-or SPL is to provide a standard library of interfaces which allows developers to…

How to Retrieve Twitter Timeline and Hashtags in PHP

How to Retrieve Twitter Timeline and Hashtags in PHP (Twitter OAuth API 1.1) So, here we offer a guide that explains…

Servers

Install Java in Ubuntu 16.04

Java and the JVM (Java's virtual machine) are widely used and required for many kinds of software. This article will…

How to install and setup Varnish in Ubuntu 16.04

One of the problems with running a site with many users is that the constant requests for dynamic content can…

Install HHVM + Nginx on Ubuntu 14.04

  The LEMHH software stack is a group of software that can be used to serve dynamic web pages and web…

Display Linux TCP / UDP Network and Socket Information with the 'ss' command

The ss command is used to show socket statistics. It can display stats for PACKET sockets, TCP sockets, UDP sockets,…

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