Configuring DNS on CentOS 5.2 server

For expandibility and ease of support, I recommend not using the /var/www/html directory and create a directory like /web (base directory) and /var/web (log files) and using it for all of the domains you wish to house/support.

Under your /etc/httpd/conf, modify the httpd.conf and add the following line at the end:

Include /etc/httpd/conf/virthosts.conf

Then under the same /etc/httpd/conf directory, create a file called virthosts.conf and fill in the information provided below.

NameVirtualHost *:80
 
<VirtualHost *:80>
 ServerName app.testcomp.com 
 ServerAlias www.app.testcomp.com
 DocumentRoot /web/app.testcomp.com/htdocs
 ErrorLog /var/web/app.testcomp.com/error_log
 CustomLog /var/web/app.testcomp.com/access_log common
 ScriptAlias /cgi-bin/ "/web/app.testcomp.com/htdocs/"
 <Directory /web/app.testcomp.com>
     Options Indexes FollowSymLinks Multiviews +Includes
     AllowOverride All
 </Directory>
</VirtualHost>
                                              

1:
2:
3:
4:
5:
6:
7:
8:
9:
10:
11:
12:
13:
14:

HI
you asked , how to configure dns server, but after reading your question , its seems like you want to configure as webserver,

which one you want to configure ??

for dns server, you need to install bind
and have to configure named.conf

you can follow wnat  mwecomputers said to configure apache,
or you can follow this tutorial about configureing binds and apache
http://www.howtoforge.com/creating-your-own-webserver-with-bind-and-apache-centos5
let me know if you need any help

Under the /etc/httpd/conf, I modified the httpd.conf and add the following line at the end:
Include /etc/httpd/conf/virthosts.conf
Then under the same /etc/httpd/conf directory, created virthosts.conf

Basically, this is a web server that needs to provide dhcp.  I need a virtual host so that when a client connects to the server, it can browse to app.testcomp.com.

Here is my /etc/dhcpd.conf

ddns-update-style interim;
ignore client-updates;

subnet 10.10.10.0 netmask 255.255.255.0 {

# --- default gateway
        option routers                  10.10.10.1;
        option subnet-mask              255.255.255.0;

        option nis-domain               "testcomp.com";
        option domain-name              "testcomp.com";
        option domain-name-servers      10.10.10.158;

        option time-offset              -18000; # Eastern Standard Time
#       option ntp-servers              10.10.10.158;
#       option netbios-name-servers     10.10.10.158;
# --- Selects point-to-point node (default is hybrid). Don't change this unless
# -- you understand Netbios very well
#       option netbios-node-type 2;

        range dynamic-bootp 10.10.10.10 10.10.10.150;
        default-lease-time 21600;
        max-lease-time 43200;

        # we want the nameserver to appear at a fixed address
        host ns {
                next-server marvin.redhat.com;
                hardware ethernet 12:34:56:78:AB:CD;
                fixed-address 207.175.42.254;
        }

DHCP is working fine.

The virtual host is the problem.  I changed /etc/httpd/conf/httpd.conf and added the following line at the end:
Include /etc/httpd/conf/virthosts.conf

Here is virthosts.conf:
NameVirtualHost *:80

<VirtualHost *:80>
 ServerName app.testcomp.com
 ServerAlias www.app.testcomp.com
 DocumentRoot /var/www/html
 ErrorLog logs/error_log
 CustomLog logs/access_log common
 ScriptAlias /cgi-bin/ "/var/www/html/"
 <Directory /var/www/html>
     Options Indexes FollowSymLinks Multiviews +Includes
     AllowOverride All
 </Directory>
</VirtualHost>

The named service starts fine, but the client cannot ping app.testcomp.com or browse to it.  ipconfig shows:
Connection-specific DNS Suffix: testcomp.com
IP Address:  10.10.10.150
Subnet Mask:  255.255.255.0
Default Gateway:  10.10.10.1

I appreciate any help getting me through this.

Do you have a DNS CNAME entry for 'app' that points to the same IP address as the server?

Oops. A DNS 'A record' entry for app that points to 10.10.10.150?

No, I don't.  Where would I put that?

First of all, are you going to have the DNS located on the same server as the web host or a seperate server or external host?

This server is standalone and will not be hooked to the Internet or any other network.