Under LinuxRHEL4: DNS Server SETUP

DNS server: (based on RedHatlinuxAS4) 1. Install dns server related software [root @ RHEL4RPMS] # rpm-ivhbind-9.2.4-2.i386.rpm [root @ RHEL4RPMS] # rpm-ivhbind-chroot-9.2.4-2.i386.rpm // to enhance dns server security [root @ RHEL4RPMS] # rpm-ivhbind-

DNS server: (based on RedHat linux AS 4)
1. Install dns Software

[Root @ RHEL4 RPMS] # rpm-ivh bind-9.2.4-2.i386.rpm
[Root @ RHEL4 RPMS] # rpm-ivh bind-chroot-9.2.4-2.i386.rpm // to enhance dns server security
[Root @ RHEL4 RPMS] # rpm-ivh bind-libs-9.2.4-2.i386.rpm
[Root @ RHEL4 RPMS] # rpm-ivh bind-utils-9.2.4-2.i386.rpm
[Root @ RHEL4 RPMS] # rpm-ivh caching-nameserver-7.3-3.noarch.rpm // generate a dns configuration Template File

2. Configure the configuration file in which dns works normally (if you do not know where the configuration file is located: Query with rpm-ql bind)
/Etc/named. conf is a symbolic link pointing to/var/named/chroot/etc/named. conf
/Var/named/chroot/etc/* // list the "General" configuration files that the dns server works normally.
/Var/named/chroot/var/named/* // list the "region" configuration file for the dns server to work normally

3. General configuration file named. conf
Add the code to it on the basis of the original
Vi/var/named/chroot/etc/name. conf
# Forward region Declaration
Zone "linuxidc.com" IN {
Type master; // indicates the master Domain Name Server
File "linuxidc.com. zone"; // defines the database file for forward region resolution.
Allow-update {none ;};
};

# Reverse region Declaration
Zone "0.168.192.in-addr. arpa" IN {
Type master; // indicates the master Domain Name Server
File "192.168.0.rev"; // defines the reverse region resolution database file
Allow-update {none ;};
};
Save and exit
Create the linuxidc.com. zone and 192.168.0.rev files under/var/named/chroot/var/named /.
3. Configure forward region resolution database file:
Add the following code to it:
Vi/var/named/chroot/var/named/linuxidc.com. zone

$ TTL 86400
@ In soa @ root (
42; serial (d. adams)
3 H; refresh
15 M; retry
1 W; expiry
1D); minimum
In a 192.168.0.1 # Set the address record: Resolve the domain name to an IP address #
In ns linuxidc.com. # Set Domain Name Service records #
In mx 5 linuxidc.com. # Set the mail exchange record. Used by the matching email server #
Mail in cname linuxidc.com. # Set the alias record #
Www in cname linuxidc.com. # Set the alias record #

Save and exit
4. Configure reverse region resolution database files:
Add the following code to it:
Vi/var/named/chroot/var/named/192.168.0.rev

$ TTL 86400
@ In soa localhost. root. localhost .(
1997022700; Serial
28800; Refresh
14400; Retry
3600000; Expire
86400); Minimum
In ns linuxidc.com. # Set Domain Name Service records #
1 in ptr linuxidc.com. # Set reverse pointer record #
Save and exit

5. Change the/etc/resolv. conf file as follows:
Domain linuxidc.com
Nameserver 192.168.0.1
Search linuxidc.com

6. Change permissions
Chown named: named linuxidc.com. zone

Chown named: named 192.168.0.rev
7. Restart the service
Service named restart
8. Test the DNS server

1. Test on this server:

(1) host www.linuxidc.com
Host 192.168.0.1

(2) dig www.linuxidc.com @

Dig 192.168.0.1

2. Test on the client (windows platform:

Change the IP address to the same network segment as the server, the gateway is empty, and the DNS directs to the server's IP Address: 192.168.0.1

Start/run/cmd nslookup

Forward resolution:> www.linuxidc.com or linuxidc.com. Or linuxidc.com

Reverse resolution:> 192.168.0.1

9. (1) check whether the regional file is incorrect.
Named-checkzone/var/named/chroot/var/named/linuxidc.com. zone
Named-checkzone/var/named/chroot/var/named/192.168.0.rev
(2) Check the configuration file
Name-checkconfig/etc/named. conf
10. the DNS server configuration is complete and can be used.