Grid Computing Vs Cloud Computing
The world of information technology is changing rapidly and what may be the popular method of conducting business or gathering information today may be completely phased out in a few months. Grid computing and cloud computing are two powerful – but distinct – computing systems that attempt to accomplish many of the…
Category : Networking 07-12-2013 by Janeth Kent
Ubuntu: How To Start Program As Service
According to Ubuntu’s Upstart website, “Upstart is an event-based replacement for the /sbin/init daemon which handles starting of tasks and services during boot, stopping them during shutdown and supervising them while the system is running.”Basically, Upstart is an init daemon that replaces the /etc/init.d scripts.It comes with Ubuntu 6.10 and…
Category : Networking 10-10-2013 by Janeth Kent
PHP files are downloaded by browser instead of processed by the server, how to solve it?
After upgraded some packages in my ubuntu server, sometimes php configuration goes crazy and PHP files are downloaded by browser instead of processed by the server, how to solve it? Here are the steps to solve fastly the problem. Follow thiese commands: Code: sudo a2enmod php5 and it said "Module php5 already enabled". re-starting apache2…
Category : Networking 16-08-2013 by Janeth Kent
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…
Category : Networking 09-07-2013 by Janeth Kent
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…
Category : Networking 02-07-2013 by Janeth Kent
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…
Category : Networking 21-06-2013 by Janeth Kent
Install and Configure Varnish with Apache multiple Virtual Hosts on Ubuntu 12.10
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 the virtual private server itself if there is a…
Category : Networking 21-06-2013 by Janeth Kent
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 are available in the…
Category : Networking 11-06-2013 by Janeth Kent
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
Category : Networking 30-05-2013 by Janeth Kent
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 it, aside from providing…
Category : Networking 29-05-2013 by Janeth Kent
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 for an…
Category : Networking 29-05-2013 by Janeth Kent
Million of visitors per day with a super cheap php mysql server using nginx and varnish
These instructions are the rather verbose, but hopefully easy enough to follow, steps to build a new Linux server using Varnish and Nginx to build a php application on a cheap server , all costing under $15 a month, capable of sustaining million hits per day, (we use blitz.io to…
Category : Networking 28-05-2013 by Janeth Kent
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…
Category : Networking 27-05-2013 by Janeth Kent
3 Ways to Get High Rankings Despite Algorithm Changes
Representatives from Google have said they change search engine algorithms as many as hundreds of times per year. This reality hit the Internet world particularly hard in 2012, as many of the algorithm changes that occurred meant that people who specialized in search engine optimization had to completely change strategies…
Category : Networking 10-05-2013 by Janeth Kent
Setup VNC server for remote desktop management in Ubuntu 12.04
VNC is a protocol that is used to share the desktop with other users/computers over the network/Internet.In order to share a desktop, VNC server must be install and configure on the computer and VNC client must be run on the computer that will access the shared desktop. When we install…
Category : Networking 24-04-2013 by Janeth Kent
Install ISPCONFIG 3 in UBUNTU 12.04
Note: This is work in progress! You should probably test this in a virtual machine first and play around with various settings. There are a lot of tutorials over the Internet about how to configure an Ubuntu server for ISPConfig. I usually follow them, after all there aren’t so many variations on…
Category : Networking 11-04-2013 by Janeth Kent
Php: Introduction to Mysqli Extension
Experienced developers eschew the original MySQL extension because of its abandoned status in PHP. Nascent web developers, however, may be completely oblivious to its dormant past and dying future. Introductory tutorials for connecting to MySQL from PHP are certainly abundant, as is evident from a simple “php and mysql tutorial” Google…
Category : Networking 11-04-2013 by Janeth Kent
Enable SSH Secure Shell in Ubuntu 12.10
This brief tutorial shows you how to enable SSH in Ubuntu 12.04 Precise Pangolin. This request came in from one of our readers who wanted to know how to enable SSH in Ubuntu 12.04. As you may already know, SSH is a secure communication protocol that lets you remotely access…
Category : Networking 11-04-2013 by Janeth Kent
How to install LAMP (Linux,Apache,Mysql,Php) in Ubuntu 12.10
About LAMP LAMP stack is a group of open source software used to get web servers up and running. The acronym stands for Linux, Apache, MySQL, and PHP. Since the virtual private server is already running Ubuntu, the linux part is taken care of. Here is how to install the rest. Set…
Category : Networking 11-04-2013 by Janeth Kent
How to install and configure vsftpd FTP server in Ubuntu 12.10
This tutorial focuses on how to setup vsftpd server on your linux based VPS or a dedicated server. The vsftpd stands for “Very Secure FTP Daemon”. It is not just secure as the name suggests but also delivers excellent performance by consuming less memory. The tutorial also teaches you how…
Category : Networking 11-04-2013 by Janeth Kent
Install and Setup SSL in Webmin and Apache
SSL is a protocol for making secure, authenticated connections across an insecure network like the Internet. It encrypts network traffic, so that an attacker cannot listen in on the network and capture sensitive information such as passwords and credit card numbers. It allows servers to authenticate themselves to clients, so…
Category : Networking 11-04-2013 by Janeth Kent
Apache:Setup a SSL Certificate with Thawte
Here is a short tutorial how to set up a Thawte SSL 123 SSL certificate (a domain-only validation SSL Certificate). In a nutshell, it takes two steps: First, you need to create your private key and the certificate signing request to request the certificate. In a second step you need…
Category : Networking 11-04-2013 by Janeth Kent
