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How to Reduce Load on Dedicated Servers (Part II)

admin — Wed, 02 Jun 2010 11:07:04 +0000

Use “link” instead of “@ import” to declare the style sheet

There is evidence that this tip increases the performance of loading the style sheet (CSS) on their pages. Using the code “link” instead of “@ import” the file is loaded more quickly.

Disperse your files across multiple domains

In a large site, with large audience, you might consider putting your files in different domains. For instance, in the main domain, dedicatedserverhostingonline.com, leave the files html, asp or php, and the pictures and videos on images.dedicatedserverhostingonline.com. Thus increases paralleled downloads. Many webmasters prefer to place their scripts or images on external services like Amazon S3 or Google Ajax Libraries API relieving the load on your own server.

Reduce HTTP requests

In section page of your site can see which files are loaded. Check the JavaScript and CSS. You can join them in just a single JS file, or a single CSS file, thus avoiding multiple loads of files or script styles. The less files faster your pages will be delivered to the user.

Use GET in AJAX scripts

This technique is more geared for developers, it indicates that while using the GET method instead of POST, AJAX in your scripts, you are making a request to the server in just one step, instead of the POST which is always two steps necessary to obtain the desired data. GET transfers data at once using fewer dedicated servers.

Always Declare Dimensions of the images

One of the most neglected thing by the developers but of extreme importance. Declaring the length and height of images, videos, tables, etc., will make the browser “guess” the size of the objects which will be loading the page more slowly. On the other hand if the browser knows in advance what its size automatically reserves this space thus maintaining the consistency of the page and their texts.

There are more tips and techniques for increasing the performance of the website. Of course using these techniques periodically improves the performance of your website and therefore reduces the load on the server. Using the techniques together will be surprised with the gain that gets to you and your browsing experience, but also optimize your dedicated server hosting resources without changing to a more powerful and more expensive dedicated server.

How to Reduce Load on Dedicated Servers (Part I)

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A Cheap Dedicated Server to Handle Low Traffic Website

admin — Thu, 06 May 2010 10:18:58 +0000

If you are having a very little traffic you don’t even need a low cost server. Rather than that, you can choose cheap dedicated servers which are having Intel Pentium 4 processor with a speed of 2.4 GHz, a RAM of 512 MB and a hard disc capacity of 40 GB.

You can customize the dedicated server as per requirement. You can choose your own operating system, management and many other facilities on your desire so that your visitors will not face any problem because of break downs.

The Security of your data in the server is looked after by the operating system. Both Linux and Windows operating systems use various software’s to protect your data from hackers, spammers and many other kinds of malware.

With your cheap dedicated server too there are limitations on content of your web pages. There is restriction on copy right material. If your content needs to have copy right material you need to get written permission first. Also there is restriction on adult material too. The service providers do not allow adult material in your website unless they are legal. Another reason for not allowing adult material is that they occupy a lot of server space. This is because they normally have video sound and photographs.

In my opinion, it is always profitable to out source cheap dedicated server hosting because for a small fee you get your own server.

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Reinstall GRUB boot loader on Linux Dedicated Servers

admin — Mon, 09 Nov 2009 00:36:40 +0000

Before we proceed towards the tutorial for Reinstallation of GRUB boot loader on Linux Dedicated Servers, I would suggest you to have a look at the short description about GRUB boot loader which is given below.

Most of us who belong to the web hosting industry are well aware of the fact that the products and applications released under the GNU project are free. GRUB is also a boot loader package which is available for free i.e. it is released under the GNU project. Now, I would like to explain what does GRUB do.

GRUB is actually one of the multiboot specification which will allow you to install and run 2 different operating systems of the same machine. As you will have 2 different operating systems installed on the machine, you will need an option to select the operating system you wish to run when the machine starts, otherwise this feature won’t be useful. This option is available if you have GRUB installed on the Linux Dedicated Server Hosting. Alongwith this feature, you can also select different images of the kernel and pass boot time parameters on a single operating system’s partitions to such kernels.

Most of the hosting providers who offer Linux Dedicated Servers will assist you to install GRUB boot loader on the Linux Dedicated Servers, however, it might be possible that you will have to reinstall it on your Linux Dedicated Server Hosting. For this purpose, below are some steps which can be followed in order to reinstall GRUB boot loader on Linux Dedicated Servers.

Important : The steps given below are for RedHat and CentOS operating systems only and the steps should be followed in rescue mode. Also, the steps given below are to reinstall a grub which is deleted by mistake or which is corrupted due to some reason.

1. Firstly, it is important to boot the system and hence you should do this before you proceed.

2. As the installation is to be done in the rescue mode, you should enter the rescue mode first and you can do this by entering the Linux rescue command as given below.

Note : Make sure that you enter the Linux rescue command at the installation prompt.

Quote:

linux rescue

3. In order to mount the root partition, enter the command given below :

Quote:

chroot /mnt/sysimage

4. /dev/hda is the boot partition where you need to reinstall the GRUB boot loader and you can enter the command below to do so.

Quote:

/sbin/grub-install /dev/hda

5. Check the file /boot/grub/grub.conf again.

Reason for the confirmation : It might be possible that some additional entries may be needed for GRUB.

6. There is only step to follow i.e. Reboot the system and you are done.

7. Congratulations as you have already Reinstalled GRUB boot loader on your Linux Dedicated Server Hosting.

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TCP Wrapper on Linux Dedicated Servers

admin — Fri, 06 Nov 2009 00:22:52 +0000

TCP Wrapper actually acts as a firewall for your Linux based dedicated server hosting. The reason it is referred to a kind of firewall is the fact that the incoming packets are monitored by the TCP Wrapper. If you have a Linux dedicated server then it might be possible that a hacker attempts to login into your Linux dedicated server.

TCP Wrapper will check if the external source is authorized to connect to the server. If it is not authorized, the login permission will be denied and if it is authorized, the login attempt will be successful. For this reason, you can also call TCP Wrapper as a domain computer program. It is one of the best programs available to keep hackers away from your Linux based dedicated server hosting.

This program was basically developed as your Linux dedicated server is connected to the network and it is necessary to filter the network before the server anyone can gain access to the server. TCP Wrapper is indeed a very good program, however, you can read below to find out how does it work.

When someone tries to login into the server, â€œ/etc/hosts.allowâ€ is checked for an entry file. If it is present, it is possible to continue. Even if this is not found, it is possible to continue. However, â€œ/etc/hosts.denyâ€ file is checked. If there are no matches found this time too, you will be able to continue, however, if a match is found this time, you won’t be able to continue and the service will be blocked.

For better understanding about this, you can go through the below example:

Example â€œ/etc/hosts.denyâ€ file:

SSHD: 192.168.1.1

If the above file is present, it will block access to the computer with IP address, 192.168.1.1.

Note : Itâ€™s when someone from the computer with the IP address, 192.168.1.1 tries to login via SSH, it is possible for you to run commands on your Linux dedicated server.

The below command will send an email to the email address you have registered.

sshd: 192.168.1.1: spawn (echo -e â€œ%d %h %H %uâ€| /bin/mail -s â€˜hosts.deny entryâ€™ root)

Important : It is possible for you to run commands in â€œ/etc/hosts.allowâ€ if you would like to receive emails for successful login attempts on your Linux based dedicated server hosting.

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Linux Dedicated servers:customize error pages

admin — Sun, 29 Mar 2009 01:31:54 +0000

Error pages are the pages which are displayed when the visitor does a mistake in entering the domain name in the browser. These error pages have to be made for website with the help of the control panel. If you have websites on a Linux Dedicated Servers then it is easy for you to customize the error pages. You can do this with the help of the cPanel control panel which is generally provided with Linux Dedicated server.

You can customize these error pages for your websites according to you which is preferred by many user as they do not want to show the odd looking error pages like 400 Bad request, 401 Authorization Required, 403 Forbidden, 404 Wrong page, 500 Internal Server Error etc. to the visitors who wish to visit their site and enter wrong URL or some incorrect information into the browser. You can customize the wierd looking error pages to the error pages which look good according to you.

To customize error pages just follow the steps given below :-

1) First click on the Error Pages link under the ‘Site Management’ header in cPanel.

2) After that click on the button of the required Error Page, such as the 500 button.

3) Now Enter the HTML code for the Error Page. You can use the buttons at the top of the page to insert variables into the displayed code.

4) Click on the ‘SAVE’ button.

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Linux Dedicated server: Zend optimizer installation

admin — Fri, 27 Mar 2009 22:34:18 +0000

Zend Optimizer on a Dedicated Server Hosting

Zend Encoder and Zend SafeGuard Suite are some software’s which encode some files. Zend optimizer is a free application software which runs these files while boosting the running speed of PHP applications. Zend Optimizer is required by many scripts so that you can run the scripts on your server while decrypting and running them on the fly while increasing runtime performance.

http://www.zend.com/store/products/zend-optimizer.php

Installation of Zend optimizer :

Follow the steps given below to install Zend optimizer :-

1) First off grab a copy of the optimizer Linux glibc2.1to install it on your dedicated server. http://www.zend.com/store/free_download.php?pid=1

2) You will have to upload the file on your web server once you have downloaded the file locally. FTP to your server and upload it to a directory of your choice.

3) Now Uncompress/extract the file
tar zvfx ZendOptimizer*.tar.gz
cd ZendOptimizer-2.5.3-linux-glibc21-i386/

4) Now run the installer,
./install.sh

5) The welcome screen

6) The agreement

7) Where do you want to install Zend Optimizer?

Locate your php.ini file

9) Select Yes, chances are you are using Apache web server

10) Enter the location of where apache files are located

11) Zend changing your php.ini file location, make a note of this.

12) Restart your web server for the changes to take effect.

13) Apache should restart successfully.
Note:You may also restart Apache manually using # /etc/init.d/httpd restart

15) Please ensure that Zend Optimizer is working you can do the following in the shell.
php -v

16) After the installation is completed you can remove the directory.
cd to where the extracted Zend first.
rm –rf ZendOptimizer-2.5.3-linux-glibc21-i386

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Setup remote MySQL on Linux Dedicated server Hosting

admin — Mon, 23 Mar 2009 20:37:48 +0000

MySQL Server can be changed from local server (”localhost”) to point on remote server. You will be able to connect to MySQL through a remote location by this way.

Follow the steps given below to setup Remote MySQL :

1) Login to WHM

2) Click on SQL Services

3) Click on Setup Remote MySQL Server

4) Enter the name of the remote server in the host section and its password in the Remote MySQL Host Root Password

5) Click on ‘Setup’.

The aobve process is to setup Remote MySQL on Dedicated Server Hosting

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Linux Dedicated server:Manually bind IP address range

admin — Sat, 21 Mar 2009 19:43:59 +0000

Following are some steps which are to be followed if you want to bind IP address range manually on your Dedicated web server Hosting.

1. First, login to the server via SSH :

Code :

root@server [~]# cd /etc/sysconfig/network-scripts/

2. Then, Create a blank file ifcfg-eth0-range0 and edit :

Code :

[root@server network-scripts]# vi ifcfg-eth0-range0

3. Here IP range starts from 192.168.5.10 upto 192.168.5.30 .
Add following lines in ifcfg-eth0-range0 :

Code :

IPADDR_START=192.168.5.10
IPADDR_END=192.168.5.30
CLONENUM_START=1

IPADDR_START >> starting IP address
IPADDR_END >> ending IP address
CLONENUM_START >> will create interfaces such as eth0:0, eth0:1, eth0:2 etc …

4. As we have done some changes with the network-scripts directory,The following commands should be executed so that the changes are applied and the IP range is activated

Code :

root@server [~]# /etc/init.d/network restart

5. Now you can verify the IP address range has been added on the server with the command :

root@server [~]# ifconfig

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Linux Dedicated server:Apache configuration

admin — Thu, 19 Mar 2009 23:26:45 +0000

Some of the basic but important points which should be noted when you are configuring Apache in Linux Dedicated servers are as follows:

> Do not consider Apache configuration file as Data Storage. Scripts are the examples of the changes which are made to the configuration file.

> State of the domain will be lost if the configuration file is currupted. This is one of the most important file.

> You cannot consider Apache configuration file as configuration interface. Not editing the configuration file is the best way.

> Creating the configuration that works. Ofcourse, creation of nonfunctional configuration also works.

> The changes which are seen in the configuration due to various possibilities should be noted.

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Linux Dedicated server advantages

admin — Thu, 19 Mar 2009 00:43:22 +0000

Linux is an operating system which is installed on the server. This is the reason that the server is known as Linux Dedicated Web Server Hosting. Linux Dedicated server has all the advantages which you will get with the dedicated server. Also, you will get some of the benefits which are due to the Linux operating system installed on the server.

The very first advantage of Linux is the fact that Linux is an open source operating system. This means, you will not have to pay the high licensing fees which you will have to pay if you opt for other operating systems which are available. You are able to download Linux for free and use it. The Linux website can be changed as per the users requirements and the user can even convert the Linux website to the Windows website without much trouble. Linux is very economical as you might have to pay the distribution cost to the host or the owner instead of the high licensing fees which you will have to pay if you opt for other operating systems.

If your website requires scripting languages like PHP, MySQL, or Perl etc. then Linux is the best for you as Linux is reliable and is free which will fulfill all your needs. Web hosting providers generally providers MySQL and PostgreSQL databases with Linux but there are many other databases which are supported on Linux. Linux is the first choice for web designers and programmers and the reason for this is the circles which secure Linux operating system and the server which have Linux as an operating system installed on them.

Due to these reasons which are in favor of the user Linux operating system preferred and this makes the Linux Dedicated server the choice of many users. Apart from all these benefits you will also get the benefits you get with a dedicated server. These are some of the reasons for the Linux Dedicated server to be the choice of many users.

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