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Backup With cPanel Hosting

Tue, 25 May 2010 10:54:37 +0000

1) First login into your cPanel Web Hosting account with the Username and password

2) Click on Backup cPanel backup, backup website cpanel, cpanel hosting backup.

3) Now click on Generate / Download a Full Backup.

4) Select Home Directory in Backup Destination and enter your email address. others just leave blank and click Generate Backup.

5) Done! You just perform a full backup with cPanel Web Hosting. You will received a notification email once the backup is done.

6) Once the backup is ready, you can FTP into your Account to download the backup file. CPanel locate your backup file in your root directory (/home/username/) and CPanel backup filename normally look like this:-

backup-mm.dd.yyyy_hh-mm-ss_username.tar.gz

Note : You can also FTP your full backup file to your another FTP server (if you have more than 1 server). Just enter the Remote Server (FTP / SCP) which is the IP or domain name, Remote User (FTP / SCP) and Remote Password (FTP / SCP) in the Generate Backup page before you hit Generate backup button, your Backup File will be transfer to the remote server.

Cheap Alternative for Your PHP Hosting Requirements

Fri, 23 Apr 2010 10:51:02 +0000

When shopping for the PHP Hosting package, the requirement of checking the factors of a hosting and the provider becomes necessary. You need to check out several things to find out the best, cheap and reliable PHP Hosting company.

The only thing that matters to every business or website is the service which understand your requirements and providers value for your money. However, we should not forget the fact that not all web hosting providers offers valuable and cheap services.

PHP hosting basically refers to one of the form of website hosting available widely, which is required by the website having requirement of PHP programming language, Linux, operating system, Apache, MySQL support, database and Perl.

Some of the disadvantages of PHP Hosting is that it does not allow you to discover and remove harmful and bogus data inserted by a hackers. The PHP language includes more than 3000 complicated commands which restricts users to opt PHP hosting. Also, some PHP extensions are incompatible with few Web Server software which may lead to collapses.

PHP Web Hosting is a bit expensive solution, and because of these disadvantages, most of the people opt for the cheap Cpanel Web Hosting packages.

Cpanel Web Hosting offers a widely used and most preferred control panel (cPanel), which has a graphical user interface (GUI) one of the greatest technology invented in the web hosting industry. With the help of the various features integrated within the cPanel, enables you to launch thousands of complicated scripts in just few clicks.

In comparison with the cost, features, reliability and performance offered by PHP Hosting, the Cpanel Web Hosting is much more cost-efficient solution, and ideal for the small businesses who requires PHP and MySQL hosting in cost-effective rates.

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Define RAID-4 and it’s advantages

Wed, 27 Aug 2008 19:22:45 +0000

Each entire block is written onto a data disk. Parity for same rank blocks is generated on Writes, recorded on the parity disk and checked on Reads.RAID Level 4 requires a minimum of 3 drives to implement.

1)Very high Read data transaction rate

2)Low ratio of ECC (Parity) disks to data disks means high efficiency

3)High aggregate Read transfer rate

Define RAID-3 and it’s advantages

Wed, 27 Aug 2008 19:21:57 +0000

The data block is subdivided and written on the data disks. Stripe parity is generated on Writes, recorded on the parity disk and checked on Reads.It requires a minimum of 3 drives to implement.

1)Very high Read data transfer rate

2)Very high Write data transfer rate

3)Disk failure has an insignificant impact on throughput

4)Low ratio of ECC (Parity) disks to data disks means high efficiency

Define RAID-2 and it’s advantages

Wed, 27 Aug 2008 19:19:53 +0000

Every single bit of data word is written to a data disk drive. Each data word has its Hamming Code ECC word recorded on the ECC disks. On Read, the ECC code verifies correct data or corrects single disk errors.

1)On the fly” data error correction

2)Very high data transfer rates possible

3)The higher the data transfer rate required, the better the ratio of data disks to ECC disks

4)Relatively simple controller design as compared to RAID levels 3,4 & 5

Define RAID-1 and it’s advantages

Wed, 27 Aug 2008 19:19:11 +0000

RAID-1 requires atleast 2 drives to implement.One writes or two Reads possible per mirrored pair

1)Doubled the Reading transaction rate of single disks, same Write transaction rate as single disks.

2)complete 100% redundancy of data means no rebuild is necessary in case of a disk failure, just a copy to the replacement disk.

3)Transfer rate per block is equal to that of a single disk

4) Under certain circumstances, RAID-1 can sustain multiple simultaneous drive failures.

5) Simplest RAID storage subsystem design.

Define RAID-0 and it’s advantages

Wed, 27 Aug 2008 01:02:04 +0000

RAID (Redundant array of independent disks) 0 implements a striped disk array, the data is broken down into different blocks and each block is written to a separate disk drive.

Advantages of RAID “0″ are as follows:-

1) I/O performance is greatly enhanced by spreading the I/O load among many channels and drives

2) Best performance is achieved when data is striped across multiple controllers with only one drive per controller

3) No parity calculation overhead is involved

4) Very simple design

5) It is very easy to implement.

Define::RAID and it uses

Wed, 27 Aug 2008 00:58:03 +0000

RAID stands for Redundant array of independent disks refers to a data storage scheme using multiple hard drives to share or replicate data among the drives.

1) No matter which RAID array you use backup regularly.

2) For performance always use hardware based RAID controller. If you are tight on budget go for software based RAID. For any production environment I recommend hardware based RAID controller.

3) To make your decision final regarding RAID consider following points:
* Fault tolerant
* Speed vs performance vs overhead
* Your application and required bandwidth
* Final Cost

Steps to Install AW-stats on your server

Mon, 25 Aug 2008 20:38:52 +0000

Step # 1
1) Visit AWStats project home page http://awstats.sourceforge.net/ to download source code or RPM file of awstats. I prefer to use RPM. At the time of writing this latest version of awstats was stable 6.2-1. Here is wget command to download file (make sure you replace appropriate version number in download):
# wget http://prdownloads.sourceforge.net/awstats/awstats-6.2-1.noarch.rpm

Step # 2
Now Install awstats the easiest way to install awstats is use rpm command:
# rpm -ivh awstats-6.2-1.noarch.rpm

Step # 3
Once AWstats installed, it is time to configure it. Fortunately it comes with nice configuration perl script:
1) Change current directory to /usr/local/awstats/tools where awstats configuration tools installed:
# cd /usr/local/awstats/tools

2) Make sure you know the domain’s access log file. Check apache configuration file /etc/httpd/conf/httpd.conf and look for access_log parameter. A quick grep will help you to find out your access log file:
# grep “CustomLog” etc/httpd/conf/httpd.conf

3) Run awstats_configure.pl script to configure awstats (this perl script will do little modification to your httpd.conf file. Here is typical session from above script [required input shown in BOLD + UNDERLINE text]):
# ./awstats_configure.pl
—–> Check and complete web server config file \’/etc/httpd/conf/httpd.conf\’
Add ‘Alias /awstatsclasses “/usr/local/awstats/wwwroot/classes/”‘
Add ‘Alias /awstatscss “/usr/local/awstats/wwwroot/css/”‘
Add ‘Alias /awstatsicons “/usr/local/awstats/wwwroot/icon/”‘
Add ‘ScriptAlias /awstats/ “/usr/local/awstats/wwwroot/cgi-bin/”‘
Add ” directive
AWStats directives added to Apache config file.

—–> Update model config file ‘/etc/awstats/awstats.model.conf’
File awstats.model.conf updated.

—–> Need to create a new config file ?
Do you want me to build a new AWStats config/profile
file (required if first install) [y/N] ? y

—–> Define config file name to create
What is the name of your web site or profile analysis ?
Example: www.mysite.com
Example: demo
Your web site, virtual server or profile name:
> www.cyberciti.biz

—–> Define config file path
In which directory do you plan to store your config file(s) ?
Default: /etc/awstats
Directory path to store config file(s) (Enter for default):

—–> Create config file ‘/etc/awstats/awstats.www.cyberciti.biz.conf’
Config file /etc/awstats/awstats.www.cyberciti.biz.conf created.
—–> Restart Web server with ‘/sbin/service httpd restart’
Stopping httpd: [ OK ]
Starting httpd: [ OK ]
—–> Add update process inside a scheduler

Sorry, configure.pl does not support automatic add to cron yet.
You can do it manually by adding the following command to your cron:
/usr/local/awstats/wwwroot/cgi-bin/awstats.pl -update -config=www.cyberciti.biz
Or if you have several config files and prefer having only one command:
/usr/local/awstats/tools/awstats_updateall.pl now
Press ENTER to continue…

A SIMPLE config file has been created: /etc/awstats/awstats.www.cyberciti.biz.conf
You should have a look inside to check and change manually main parameters.
You can then manually update your statistics for ‘www.cyberciti.biz’ with command:
> perl awstats.pl -update -config=www.cyberciti.biz
You can also read your statistics for ‘www.cyberciti.biz’ with URL:
> http://localhost/awstats/awstats.pl?config=www.cyberciti.biz

Press ENTER to finish…

In above session you need to input three different things.
(A) Answer question “Do you want me to build a new AWStats config/profile file (required if first install) [y/N] ?” with y
(B) Answer question “Your web site, virtual server or profile name:” with your domain name. For example www.cyberciti.biz.
(C) Answer question “Directory path to store config file(s) (Enter for default):” Press enter key to accept default /etc/awstats directory to store configuration for domain.

5) Open your configuration file created by previous script using text editor:
# vi /etc/awstats/awstats.www.cyberciti.biz.conf

6) Look for LogFile parameter and set value to your actual access_log file:
For example:
LogFile=”/home/httpd/vhosts/cyberciti.biz/statistics/logs/access_log”

7) Create directory to store some initial data:
# mkdir -p /var/lib/awstats

Create directory to store awstats html pages so that it can be viewed/analyzed from web browser(create appropriate directory according to your need):
# mkdir -p /home/httpd/vhosts/cyberciti.biz/httpdocs/tools/awstats

9) Build all sorts of webpage’s by running command:
(a) Change Directory:
# cd /usr/local/awstats/tools

(b) Run perl script to build stats:
# ./awstats_buildstaticpages.pl -config=www.cyberciti.biz -update -awstatsprog=/usr/local/awstats/wwwroot/cgi-bin/awstats.pl -dir=/home/httpd/vhosts/cyberciti.biz/httpdocs/tools/awstats/

Where
-config : Name of file for your domain stored in /etc/awstats or file which you modified step # 3 (5)
-update : Update statistics
-awstatsprog : Path to awstats.pl script to generate all statistics
-dir : Directory in which you need to store generated html statistics

10) It is time to test generated web pages aka stats. Fire FireFox (upgrade Internet explorer to FireFox!) and type url http://www.yourdomain.com/path/to/awstats/.

11) Tip you may find that you lost old month statistics with Awstats. To get your old stats you simply need to run following command:
/usr/local/awstats/tools/awstats_buildstaticpages.pl -config=www.cyberciti.biz -update -awstatsprog=/usr/local/awstats/wwwroot/cgi-bin/awstats.pl -dir=/home/httpd/vhosts/cyberciti.biz/httpdocs/tools/awstats/ -month=12 -year=2004

Please replace values of month and year according to your need.

Step # 4: Setup cron job
1) Edit existing contrab:
# crontab -e

2) Add entry to it (here I am generating stats every 10 minutes; generally, you should setup cron, according to your own requirements):
# 10 * * * * /usr/local/awstats/tools/awstats_buildstaticpages.pl -config=www.cyberciti.biz -update -awstatsprog=/usr/local/awstats/wwwroot/cgi-bin/awstats.pl -dir=/home/httpd/vhosts/cyberciti.biz/httpdocs/tools/awstats/ >/dev/null 2>&1
Note command must type in one line or spanned using \

3) Once cron job saved, you need to make sure that crond service running following command ensures that:
a) See if crond running or not:
# service crond status
crond (pid 1519) is running…

b) If it is not running then start it:
# service crond start

c) Make sure crond starts everytime linux comes up after reboot/shutdow:
# chkconfig crond on

Step # 5 Security
Well awstats does not open any port or open any major security risks. However, generally you should consider two important things:
1) Protect your AWstats html pages with password-protected directory. Use apache’s simple directory protection mechanism. This can easily accomplished with .htaccess file in your /path/to/awstats/ directory. You are going to use directory protection using apache’s .htaccess and .htpasswd :

(a) Create .htaccess file in /home/httpd/vhosts/cyberciti.biz/httpdocs/tools/awstats/ directory (add text as follows)
vi /home/httpd/vhosts/cyberciti.biz/httpdocs/tools/awstats/.htaccess
AuthName “AWStats restricted access”
AuthType Basic
AuthUserFile /home/httpd/vhosts/cyberciti.biz/private/.htpasswd
require user awstatsadmin

(b) Create user and password (-c assumes first time you are using .htpasswd file, otherwise skip this directive):
# htpasswd -c /home/httpd/vhosts/cyberciti.biz/private/.htpasswd awstatsadmin

For more information please read documents:
Authentication and access control
.htaccess other options/directives

2) Remember all logs rotated on regular basis including apache. Therefore, it is necessary to make sure that awstats does not misses your statistics. In logrotate httpd configuration file you need to add following 3 lines after /var/log/httpd/*log {:
(a) Open /etc/logrotate.d/httpd in vi text editor:
/etc/logrotate.d/httpd

(b) Add following following 3 lines after /var/log/httpd/*log {:
sharedscripts
prerotate
/usr/local/awstats/tools/awstats_buildstaticpages.pl -config=www.cyberciti.biz – update -awstatsprog=/usr/local/awstats/wwwroot/cgi-bin/awstats.pl -dir=/home/httpd/vhosts/cyberciti.biz/httpdocs/tools/awstats/ >/dev/null 2>&1
endscript
As a result, before log rotating take place our perl script will be execute to generate html stats.

Define::DNS(Domain Name System)

Mon, 25 Aug 2008 20:37:33 +0000

The DNS(Domain Name System)helps users to find their way around the Internet. Every computer on the Internet has a unique address – just like a telephone number – which is a rather complicated string of numbers. It is called its “IP address” (IP stands for “Internet Protocol”).But it is very hard to remember everyone’s IP address. The DNS makes it easier by allowing a familiar string of letters (the “domain name”) to be used instead of the arcane IP address. So instead of typing 66.218.71.112, you can type www.yahoo.com. It is a “mnemonic” device that makes addresses easier to remember.Translating the name into the IP address is called “resolving the domain name.” The goal of the DNS is for any Internet user any place in the world to reach a specific website IP address by entering its domain name. Domain names are also used for reaching e-mail addresses and for other Internet applications.