Nslookup benutzung & optionen

Verwendung

nslookup wird dazu verwendet um Domains (lookup) und IP-Adressen (reverse lookup) aufzulösen

A-Record herausfinden

Ein A-Record ordnet einen Domänennamen der IP-Adresse (IPv4) des Rechners zu, auf dem die Domäne gehostet wird.

root@foxriver:~# nslookup xinux.de

Server:		10.80.0.2
Address:	10.80.0.2#53

Non-authoritative answer:
Name:	xinux.de
Address: 94.130.248.212

NS-Record

Ein NS-Record wird verwendet, um eine Subdomäne an eine Reihe von Nameservern zu delegieren.

root@foxriver:~# nslookup -type=ns xinux.de

Server:		10.80.0.2
Address:	10.80.0.2#53
 
Non-authoritative answer:
xinux.de	nameserver = gaius.tuxmen.de.
xinux.de	nameserver = nagus.tuxmen.de.

Authoritative answers can be found from:
gaius.tuxmen.de	internet address = 78.47.133.194
nagus.tuxmen.de	internet address = 24.134.2.5

SOA-Record

Start of Authority

root@foxriver:~# nslookup -type=soa xinux.de

 Server:	10.80.0.2
 Address:	10.80.0.2#53
 
 Non-authoritative answer:
 xinux.de
        origin = gaius.tuxmen.de
	mail addr = technik.xinux.de
	serial = 2018090601
	refresh = 14400
	retry = 1800
	expire = 604800
	minimum = 86400
 
 Authoritative answers can be found from:
 xinux.de	nameserver = gaius.tuxmen.de.
 xinux.de	nameserver = nagus.tuxmen.de.
 gaius.tuxmen.de	internet address = 78.47.133.194
 nagus.tuxmen.de	internet address = 24.134.2.5

MX-Record

E-Mail exchange

root@foxriver:~# nslookup -query=mx xinux.de

Server:		10.80.0.2
Address:	10.80.0.2#53

Non-authoritative answer:
xinux.de	mail exchanger = 10 thor.tuxmen.de.
xinux.de	mail exchanger = 20 gaius.tuxmen.de.

Authoritative answers can be found from:
xinux.de	nameserver = nagus.tuxmen.de.
xinux.de	nameserver = gaius.tuxmen.de.
thor.tuxmen.de	internet address = 94.130.248.212
gaius.tuxmen.de	internet address = 78.47.133.194
nagus.tuxmen.de	internet address = 24.134.2.5

Alle verfügbaren DNS record

root@foxriver:~# nslookup -type=any xinux.de

Server:		10.80.0.2
Address:	10.80.0.2#53 

Non-authoritative answer:
Name:	xinux.de
Address: 94.130.248.212
xinux.de
	origin = gaius.tuxmen.de
	mail addr = technik.xinux.de
	serial = 2018090601
	refresh = 14400
	retry = 1800
	expire = 604800
	minimum = 86400
xinux.de	mail exchanger = 20 gaius.tuxmen.de.
xinux.de	mail exchanger = 10 thor.tuxmen.de.
xinux.de	nameserver = gaius.tuxmen.de.
xinux.de	nameserver = nagus.tuxmen.de.

Authoritative answers can be found from:
xinux.de	nameserver = nagus.tuxmen.de.
xinux.de	nameserver = gaius.tuxmen.de.
thor.tuxmen.de	internet address = 94.130.248.212
gaius.tuxmen.de	internet address = 78.47.133.194
nagus.tuxmen.de	internet address = 24.134.2.5

Nach spezifischem DNS suchen

root@foxriver:~# nslookup xinux.de gaius.tuxmen.de

Server:		gaius.tuxmen.de
Address:	78.47.133.194#53

Name:	 xinux.de
Address: 94.130.248.212

Reverse DNS

root@foxriver:~# nslookup 94.130.248.212

212.248.130.94.in-addr.arpa	name = thor.tuxmen.de.

Authoritative answers can be found from:
248.130.94.in-addr.arpa	 nameserver = ns.second-ns.com.
248.130.94.in-addr.arpa	 nameserver = ns1.your-server.de.
248.130.94.in-addr.arpa	 nameserver = ns3.second-ns.de.
ns.second-ns.com	 internet address = 213.239.204.242
ns.second-ns.com	 has AAAA address 2a01:4f8:0:a101::b:1
ns1.your-server.de	 internet address = 213.133.106.251
ns1.your-server.de	 has AAAA address 2a01:4f8:d0a:2006::2
ns3.second-ns.de	 internet address = 193.47.99.4
ns3.second-ns.de	 has AAAA address 2001:67c:192c::add:b3