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Domain Name Service. Bind a name to IP-addresses. | Domain Name Service. Bind a name to IP-addresses. | ||
=Server side= | |||
Zone transfer between master and slave server is on TCP port 53. | |||
Disable resolving IPv6 addresses by editing /etc/default/bind9 to have <code>OPTIONS="-4 -u bind"</code> | Disable resolving IPv6 addresses by editing /etc/default/bind9 to have <code>OPTIONS="-4 -u bind"</code> | ||
=Client side= | |||
Clients query the nameserver on UDP port 53. | |||
;host <hostname or IPaddress> | |||
:Resolve hostname to IPadddres or IPaddress to hostname | |||
:host <host or IP> <nameserver> | |||
;Resolve using the specified nameserver | |||
:dig <hostname> @<nameserver> | |||
;Resolve hostname with extra info from the optinoal <nameserver> | |||
;/etc/resolv.conf | ;/etc/resolv.conf | ||
Revision as of 13:36, 8 April 2022
Domain Name Service. Bind a name to IP-addresses.
Server side
Zone transfer between master and slave server is on TCP port 53.
Disable resolving IPv6 addresses by editing /etc/default/bind9 to have OPTIONS="-4 -u bind"
Client side
Clients query the nameserver on UDP port 53.
- host <hostname or IPaddress>
- Resolve hostname to IPadddres or IPaddress to hostname
- host <host or IP> <nameserver>
- Resolve using the specified nameserver
- dig <hostname> @<nameserver>
- Resolve hostname with extra info from the optinoal <nameserver>
- /etc/resolv.conf
nameserver <dns-server1 IP>
nameserver <dns-server2 IP>
options <interface>
search <default search domain>