How to Configure Dom0 Memory in XenServer 5.6 or Later

Configure Dom0 Memory in XenServer

In this blog post, we will show you how to configure Dom0 memory in XenServer 5.6 or later by modifying the configuration file via the console.

The Xen hypervisor is a “type 1” hypervisor that runs directly on the hardware. On top of this we run a privileged Linux virtual machine, called “domain 0” (or Dom0), that runs the management toolstack and API, contains drivers for network and storage I/O, etc.,

Dom0, or the Control Domain, is a Linux VM that manages the network and storage I/O of all the guest VMs. Dom0 is a Linux VM with higher priority to

Manually updating traffic and disk usage for all clients in Plesk

Manually updating traffic and disk usage in Plesk

This blog post will guide you through the process of manually updating the traffic and disk usage for all the clients in Plesk.

The Plesk statistics is a report in Plesk that calculates disk space, Mail Space, Database usage and traffic usage on a per domain and hosting account. Plesk recalculates all usage statistics once every day as part of a daily maintenance script. Sometimes there might be situations (in case you made some updates) where you would like to see the statistics updated immediately rather than “sometime later”.

So, the solution here is to edit the statistics recalculations script and execute

How to Limit Bandwidth Using mod_bandwidth Module

Limit Bandwidth using mod_bandwidth module

Apache does not have any rate limiting or bandwidth limitations by default. In fact, only external modules provide this functionality, so you’d have had to make a special effort to enable it. In this post we will see how you can limit bandwidth using mod_bandwidth module and limit the users to 1Mbps per domain. By default, Apache will use as much bandwidth as it can. mod_bandwidth can be used by hosting companies, which would like to limit the bandwidth for their users.

What is Mod Bandwidth?

“Mod_bandwidth” is a module for the Apache webserver that enable the setting of server-wide or per

Six Basic Options You Will Need To Configure Apache Server Tokens

Six Basic Options To Configure Apache Server Tokens

In this post, you will learn about the six basic options you will need to configure Apache Server Tokens. These options are quite different from each other and the security of the server depends on how you set this up.

Apache token is generally found in the Apache main configuration file “httpd.conf”. If you don’t find it, never mind, you can simply add it. Example: ServerTokens Prod

The syntax for ServerTokens is:

ServerTokens Major|Minor|Min|Prod|OS|Full

The six options will differ from each other and this article explains them in detail along with our recommendation on the usage of the same.

ServerTokens Full

When the above option

Some Simple Tweaks to Optimize Apache in cPanel

Simple Tweaks to Optimize Apache in cPanel

The default Apache settings on cPanel are definitely something that can be improved on. Here are some simple tweaks to optimize Apache in cPanel.

All the important configuration options are stored by Apache in a config file called httpd.conf that is located at /usr/local/apache/conf/httpd.conf We will start by opening this file in your favorite text editor. For exemple:

nano /usr/local/apache/conf/httpd.conf


Total number of concurrent connections. Locate it in the configuration file. This should be set to a reasonable value. We suggest using this formula to determine the right value for your server.

MaxClients = 150 x RAM (GB)

So for example if you have 2

How to fix a corrupt Joomla session table “jos_session”

fix corrupt Joomla session table

What is Joomla session table and why do we need it?

As the name implies, jos_session table stores temporary data of Joomla users and it is used to manage user sessions. A loaded session table can have a serious impact on your Joomla site and often cause slow down. Joomla updates the session table on every page view and it is, in fact, the most active table (write-wise) on a Joomla website

Common reasons for this issue: The most common cause of a corrupt table is a failed write. Joomla is not very good at handling sessions efficiently. So, the same user can

Install and Configure GitLab on Ubuntu 14.04 with existing Apache

install and configure GitLab on Ubuntu

In this guide, we will see how to install and configure GitLab on Ubuntu 14.04 server. At a high level, here are the list of steps you would go through to complete the process:

  1. 1. ​Install​ ​and​ ​configure​ ​the​ ​necessary​ ​dependencies
  2. 2. ​Add​ ​the​ ​GitLab​ ​package​ ​repository​ ​and​ ​install​ ​the​ ​package
  3. 3. Adjusting​ ​the​ ​Firewall​ ​Rules

GitLab is an open source version control system using Ruby on Rails, a self-hosted Git project repository that provides access to public (or) private projects via the web interface, similar to Github. It also has additional development-related features like issue tracking. It offers the flexibility in deploying as

Nginx on cPanel – Quick set up guide of Engintron

Setup Engintron- Ngnix on cPanel

Here is a quick set up guide for installing Engintron on cPanel/WHM which deploys Nginx web server as a reverse proxy on the server.

cPanel doesn’t have the Nginx support as an alternative to the Apache also Nginx proxied to the Apache. However, we can make use of the third-party plugins for our requirement. There are few plugins available like Engintron, Nginxadmin, nDeploy etc. You can seek the assistance of a server management expert like us to get the Engintron or other plugins installed to your WHM panel.

Need for reverse proxy on server?

By default, cPanel uses the Apache web server to serve

How to setup SSL for Elastic Load Balancer in AWS

Setup SSL certificate for Elastic Load Balancer in AWS

So here is a step-by-step setup guide of generating and installing a SSL certificate for Elastic Load Balancer (ELB) in AWS.

With the increasing popularity as well as the need for the SEO, SSL certificates are now becoming a prerequisite for any website that considers the security of the visitors as serious thing. But just purchasing an SSL certificate doesn’t make your website safe and it needs to be installed properly on the AWS server to make it work so as to actually benefit from it. You can seek the assistance of a server management expert like us to get the SSL

Setting up Reverse DNS Without The Help Of Data Center


In most cases, the rDNS setup will be done by the Data Center (DC) technicians. But in case if the DC delegates it to a support team like us, you have 2 choices – to leave it in the hands of server management expert like us or to do it on your own and in which case, this blog post might come handy. Come let’s see what it takes for you to setup the rDNS by yourself.

Purpose of Reverse DNS (rDNS/PTR)

As the main purpose of the Domain Name System (DNS) is to point domains to IP addresses, PTR record also known