dns ,dhcp for gns setup

cat /etc/named.conf options { // FORWARDERS: Forward any name this DNS can't resolve to my router. forwarders { 192.168.1.1; }; // DIRECTORY: Directory where named will look for zone files. directory "/etc/named/data"; }; # ---------------------------------- # Forward Zone # ---------------------------------- zone "tang.com" IN { type master; file "tang.com.zone"; allow-update { none; }; }; # ---------------------------------- # Reverse Zone # ---------------------------------- zone "1.168.192.in-addr.arpa" IN { type master; file "1.168.192.in-addr.arpa.zone"; allow-update { none; }; };

cat /etc/named/data/tang.com.zone ; +-------------------------------------------------------------------+ ; | /etc/named/data/tang.com.zone | ; | | ; | Forward zone definition file for tang.com | ; +-------------------------------------------------------------------+ $ORIGIN tang.com. $TTL 86400 ; time-to-live - (1 day) @ IN SOA dnstest.tang.com. fred.tang.com. ( 201011021 ; serial number - (yyyymmdd+s) 7200 ; refresh - (2 hours) 300 ; retry - (5 minutes) 604800 ; expire - (1 week) 60 ; minimum - (1 minute) ) IN NS dnstest.tang.com. localhost IN A 127.0.0.1 ; Oracle RAC Nodes test1 IN A 192.168.1.11 test2 IN A 192.168.1.22 test3 IN A 192.168.1.33 dnstest IN A 192.168.1.88 ; this is the server it self gns IN A 192.168.1.66 ; this is the gns server ; gns-sub.tang.com is the sub-domain in tang.com, used for gns setting for the grid control installation $ORIGIN gns-sub.tang.com. @ IN NS gns.tang.com.

cat /etc/named/data/1.168.192.in-addr.arpa.zone ; +-------------------------------------------------------------------+ ; | /etc/named/data/1.168.192.in-addr.arpa.zone | ; | | ; | Reverse zone definition file for tang.com | ; +-------------------------------------------------------------------+ $ORIGIN 1.168.192.in-addr.arpa. $TTL 86400 ; time-to-live - (1 day) @ IN SOA dnstest.tang.com. jhunter.tang.com. ( 201311021 ; serial number - (yyyymmdd+s) 7200 ; refresh - (2 hours) 300 ; retry - (5 minutes) 604800 ; expire - (1 week) 60 ; minimum - (1 minute) ) IN NS dnstest.tang.com. ; Oracle RAC Nodes 11 IN PTR test1.tang.com. 22 IN PTR test2.tang.com. 33 IN PTR test3.tang.com ; Dns Server 88 IN PTR dnstest.tang.com. 66 IN PTR gns.tang.com

cat /etc/dhcp/dhcpd.conf ddns-update-style interim; ignore client-updates; subnet 192.168.1.0 netmask 255.255.255.0 { option routers 192.168.1.1; # Default gateway to be used by DHCP clients option subnet-mask 255.255.255.0; # Default subnet mask to be used by DHCP clients. option ip-forwarding off; # Do not forward DHCP requests. option broadcast-address 192.168.1.255; # Default broadcast address to be used by DHCP client. option domain-name "dnstest.tang.com"; option domain-name-servers 192.168.1.88; # IP address of the DNS server. In this document it will be oralab1 option time-offset -19000; # Central Standard Time option ntp-servers 0.pool.ntp.org; # Default NTP server to be used by DHCP clients range 192.168.1.99 192.168.1.200; # Range of IP addresses that can be issued to DHCP client default-lease-time 21600; # Amount of time in seconds that a client may keep the IP address max-lease-time 43200; }