Domain Name Server (DNS)

Features of DNS
1. Standard naming system manager
2. Name to IP resolution
3. IP to Name Resolution
4. Client-utilities are auto-installed 'bind-utils* ' RPM
5. Caching only server
6. Primary server
7. Secondary server
8. Reverse zone
9.IPV6 zone
10.Operates as non previledged user: 'named'
11.Default configuration binds to UDP: 53 on IPV4/ IPV6 loopback ( remote query will fail)
12. Load-balancing is provided in a proper configuration of :2 or more authoritative server

Daemon:  named
Script:     named
Port:       53
Log File: /var/log/messages

Packages
# rpm  -q  bind bind-chroot caching-nameserver---------------------->Server
# rpm  -q  bind-utils


Tasks