Virtual

web server in Linux

Configure web server

Code: [Select]

Starting httpd: [warn] _default_ VirtualHost overlap on port 80, the first has precedence 

• # echo "NameVirtualHost *:80" >> /etc/httpd/conf/httpd.conf

                                    --------------------------------

vi /etc/httpd/conf/httpd.conf

NameVirtualHost *:80

# service httpd restart

Sample Apache 2 Virtual hosting configuration

<VirtualHost *:80>

     DocumentRoot /var/www/html

     ServerName mail.worldcm.net

  #   ServerAlias  mail.worldcm.net

   #  ErrorLog /var/www/example.com/error.log

    # CustomLog /var/www/example.com/requests.log

</VirtualHost>

<VirtualHost *:80>

     DocumentRoot /var/www/html/new

     ServerName mail.worldcm.net/new

  #   ServerAlias example.com

   #  ErrorLog /var/www/example.com/error.log

    # CustomLog /var/www/example.com/requests.log

</VirtualHost>

####################################################################################

Vertual OR  sub webpage creat

www.yourIP.net/new

[root@mail ~]# mkdir /var/www/new 

[root@mail ~]# vi /etc/httpd/conf.d/new.conf

Alias /new /var/www/new

DocumentRoot "/var/www/new"

    <Directory "/var/www/new">

allow from all

Options None

Require all granted

    </Directory>

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/etc/httpd/conf.d/postfixadmin.conf

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Name Based Virtual Hosts

Using Name Based Virtual Hosts is quite easy. The notable difference between IP-based and name-based virtual host configuration is the NameVirtualHost directive which specifies an IP address that should be used as a target for name-based virtual hosts.

For example, we use both www.akadia.ch and www.arkum.ch at the IP address 193.247.121.196. We simply add to one of the Apache configuration files (most likely httpd.conf) code similar to the following:

NameVirtualHost 193.247.121.196

<VirtualHost 193.247.121.196>

    ServerName www.akadia.ch

    DocumentRoot /www/akadia

</VirtualHost>

<VirtualHost 193.247.121.196>

    ServerName www.arkum.ch

    DocumentRoot /www/arkum

</VirtualHost>

Of course, any additional directives can (and should) be placed into the <VirtualHost> section. To make this work, all that is needed is to make sure that the names www.akadia.ch and www.arkum.ch are pointing to the IP address 193.247.121.196

When you specify an IP address in a NameVirtualHost directive then requests to that IP address will only ever be served by matching <VirtualHost>s. The "main server" will never be served from the specified IP address. If you start to use virtual hosts you should stop to use the "main server" as an independent server and rather use it as a place for configuration directives that are common for all your virtual hosts. In other words, you should add a <VirtualHost> section for every server (hostname) you want to maintain on your server.

In this example we will configure a web server.

necessary rpm for web server is httpd, httpd-devel and apr check them for install

Now configure the ip address to 192.168.0.254 and check it 

start httpd daemons and verify its running status 

Configure virtual hosting

In this example we will host a website www.vinita.com to apache web server. create a documents root directory for this website and a index page 

for testing purpose we are writing site name in its index page 

save file and exit

now open /etc/hosts file 

in the end of file bind system ip with www.vinita.com

now open /etc/httpd/conf/httpd.conf main configuration file of apache server 

locate virtual host tag 

remove # from the beginning and add the IP of host 

Now go in the end of file and copy last seven line [ virtual host tag ] and paste them in the end of file. change these seven lines as shown in image 

now save this file and exit from it

you have done necessary configuration now restart the httpd service and test this configuration run links command 

if links command retrieve your home page

means you have successfully configured the virtual host now test it with site name 

In output of links command you should see the index page of site 

Configure multiple site with same ip address

At this point you have configured one site www.vinita.com with the ip address 192.168.0.254. Now we will configure one more site www.nikita.com with same ip address

create a documents root directory for www.nikita.com website and a index page

for testing purpose we are writing site name in its index page 

save file and exit

now open /etc/hosts file and bind system ip with www.nikita.com

now open /etc/httpd/conf/httpd.conf main configuration file of apache server 

Now go in the end of file and copy last seven line [ virtual host tag ] and paste them in the end of file. change these seven lines as shown in image 

now save this file and exit from it

you have done necessary configuration now restart the httpd service 

test this configuration run links command

In output of links command you should see the index page of site

configure multiple site with multiple ip address

Now we will host multiple sites with multiple ip address. Create a virtual lan card on server and assign its an ip address of 192.168.0.253. we will create a testing sitewww.nidhi.com and will bind it with ip address of 192.168.0.253

create a documents root directory for www.nidhi.com website and a index page

for testing purpose we are writing site name in its index page 

save file and exit

now open /etc/hosts file and bind system ip with www.nidhi.com

now open /etc/httpd/conf/httpd.conf main configuration file of apache server 

Now go in the end of file and copy last seven line [ virtual host tag ] and paste them in the end of file. change these seven lines as shown in image 

now save this file and exit from it

you have done necessary configuration now restart the httpd service 

test this configuration run links command

In output of links command you should see the index page of site

How to create site alias

Now I will show you that how can you use site alias to configure more name of same site. we configure a site www.vinita.com in stating of example. now we will createwww.goswami.com site alias for this site so this site can be access with both name.

To create alias first make its entry in /etc/hosts file as shown here 

Now open main apache configuration /etc/httpd/conf/httpd.conf

Now go in the end of file and copy last seven line [ virtual host tag ] and paste them in the end of file. change these seven lines as shown in image 

now save this file and exit from it

you have done necessary configuration now restart the httpd service and test this configuration run links command

In output of links command you should see the index page of site