Nslookup: Difference between revisions
Jump to navigation
Jump to search
| Line 22: | Line 22: | ||
Getting the IP address for a name: | Getting the IP address for a name: | ||
< | <syntaxhighlight lang='text> | ||
nslookup www.cnn.com | |||
Server: 8.8.8.8 | Server: 8.8.8.8 | ||
Address: 8.8.8.8#53 | Address: 8.8.8.8#53 | ||
| Line 37: | Line 37: | ||
Name: turner.map.fastly.net | Name: turner.map.fastly.net | ||
Address: 151.101.128.73 | Address: 151.101.128.73 | ||
</ | </syntaxhighlight> | ||
==Query Option== | ==Query Option== | ||
| Line 43: | Line 43: | ||
Getting more information for a name: | Getting more information for a name: | ||
< | <syntaxhighlight lang='text> | ||
nslookup -query=hinfo www.cnn.com | nslookup -query=hinfo www.cnn.com | ||
Server: 8.8.8.8 | Server: 8.8.8.8 | ||
| Line 60: | Line 60: | ||
expire = 604800 | expire = 604800 | ||
minimum = 30 | minimum = 30 | ||
</ | </syntaxhighlight> | ||
Getting the Mail Exchanger (MX) for a domain: | Getting the Mail Exchanger (MX) for a domain: | ||
< | <syntaxhighlight lang='text> | ||
nslookup -query=mx novaordis.com | nslookup -query=mx novaordis.com | ||
Server: 8.8.8.8 | Server: 8.8.8.8 | ||
| Line 75: | Line 75: | ||
novaordis.com mail exchanger = 10 aspmx2.googlemail.com. | novaordis.com mail exchanger = 10 aspmx2.googlemail.com. | ||
novaordis.com mail exchanger = 10 aspmx3.googlemail.com. | novaordis.com mail exchanger = 10 aspmx3.googlemail.com. | ||
</ | </syntaxhighlight> | ||
In general, -query can be followed by any DNS zone file element names (mx, a, txt, etc). | In general, -query can be followed by any DNS zone file element names (mx, a, txt, etc). | ||
Revision as of 04:13, 19 March 2020
Internal
Overview
Warning: nslookup was found not work correctly on some busybox versions.
Installation
With yum
yum install bind-utils
With apt
apt-get update apt-get install dnsutils
Non-Interactive Mode
Getting the IP address for a name:
nslookup www.cnn.com
Server: 8.8.8.8
Address: 8.8.8.8#53
Non-authoritative answer:
www.cnn.com canonical name = turner.map.fastly.net.
Name: turner.map.fastly.net
Address: 151.101.0.73
Name: turner.map.fastly.net
Address: 151.101.192.73
Name: turner.map.fastly.net
Address: 151.101.64.73
Name: turner.map.fastly.net
Address: 151.101.128.73
Query Option
Getting more information for a name:
nslookup -query=hinfo www.cnn.com
Server: 8.8.8.8
Address: 8.8.8.8#53
Non-authoritative answer:
www.cnn.com canonical name = turner.map.fastly.net.
Authoritative answers can be found from:
fastly.net
origin = ns1.fastly.net
mail addr = hostmaster.fastly.com
serial = 2016110301
refresh = 3600
retry = 600
expire = 604800
minimum = 30
Getting the Mail Exchanger (MX) for a domain:
nslookup -query=mx novaordis.com
Server: 8.8.8.8
Address: 8.8.8.8#53
Non-authoritative answer:
novaordis.com mail exchanger = 5 alt1.aspmx.l.google.com.
novaordis.com mail exchanger = 5 alt2.aspmx.l.google.com.
novaordis.com mail exchanger = 0 aspmx.l.google.com.
novaordis.com mail exchanger = 10 aspmx2.googlemail.com.
novaordis.com mail exchanger = 10 aspmx3.googlemail.com.
In general, -query can be followed by any DNS zone file element names (mx, a, txt, etc).