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os:linux:command:host.html



Linux Commands#network
dig - How to use dig command in Linux
How to use nslookup Commands on Linux

How to use host command on Linux

host command lists

Operation Command Example
lookups – mapping names to addresses host HOST host google.com
Reverse lookups – mapping addresses to names host IP_ADDRESS host 192.168.0.10
lookups at DNS Server host HOST SERVER host google.com 8.8.8.8
lookups at DNS Server host IP SERVER host 74.125.235.101 8.8.8.8
lookup for an any record host -t any HOST host -t any google.com
lookup for an soa record host -t soa HOST host -t soa google.com
lookup for an ns record host -t ns HOST host -t ns google.com
lookup for an a record host -t a HOST host -t a google.com
lookup for an mx record host -t mx HOST host -t mx google.com
lookup for an txt record host -t txt HOST host -t txt google.com
lookup for an any record
-a is equivalent to -v -t ANY
host -a HOST host -a google.com


host command options

host [-t type] hostname [server]

# host
Usage: host [-aCdlriTwv] [-c class] [-N ndots] [-t type] [-W time]
            [-R number] [-m flag] hostname [server]
       -a is equivalent to -v -t ANY
       -c specifies query class for non-IN data
       -C compares SOA records on authoritative nameservers
       -d is equivalent to -v
       -l lists all hosts in a domain, using AXFR
       -i IP6.INT reverse lookups
       -N changes the number of dots allowed before root lookup is done
       -r disables recursive processing
       -R specifies number of retries for UDP packets
       -s a SERVFAIL response should stop query
       -t specifies the query type
       -T enables TCP/IP mode
       -v enables verbose output
       -w specifies to wait forever for a reply
       -W specifies how long to wait for a reply
       -4 use IPv4 query transport only
       -6 use IPv6 query transport only
       -m set memory debugging flag (trace|record|usage)


Example

#host www.amazon.com
www.amazon.com has address 205.251.242.103
#host -t mx amazon.com
amazon.com mail is handled by 5 amazon-smtp.amazon.com.
#host -t soa amazon.com
amazon.com has SOA record dns-external-master.amazon.com. root.amazon.com. 2010113059 180 60 3024000 60

#host -t soa aws.com
aws.com has SOA record ns-1490.awsdns-58.org. awsdns-hostmaster.amazon.com. 1 7200 900 1209600 86400
#host -t any aws.com
aws.com has SPF record "v=spf1 include:spf.intermedia.net ~all"
aws.com descriptive text "v=spf1 include:spf.intermedia.net ~all"
aws.com mail is handled by 20 mx2.smtp.exch022.serverdata.net.
aws.com mail is handled by 10 mx1.smtp.exch022.serverdata.net.
aws.com has SOA record ns-1490.awsdns-58.org. awsdns-hostmaster.amazon.com. 1 7200 900 1209600 86400
aws.com has address 184.72.117.127
aws.com has address 54.209.129.73
aws.com name server ns-1490.awsdns-58.org.
aws.com name server ns-527.awsdns-01.net.
aws.com name server ns-139.awsdns-17.com.
aws.com name server ns-1818.awsdns-35.co.uk.
#host -a  aws.com
Trying "aws.com"
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 53311
;; flags: qr rd ra; QUERY: 1, ANSWER: 11, AUTHORITY: 0, ADDITIONAL: 0

;; QUESTION SECTION:
;aws.com.                       IN      ANY

;; ANSWER SECTION:
aws.com.                86211   IN      SPF     "v=spf1 include:spf.intermedia.net ~all"
aws.com.                86211   IN      TXT     "v=spf1 include:spf.intermedia.net ~all"
aws.com.                1011    IN      MX      10 mx1.smtp.exch022.serverdata.net.
aws.com.                1011    IN      MX      20 mx2.smtp.exch022.serverdata.net.
aws.com.                711     IN      SOA     ns-1490.awsdns-58.org. awsdns-hostmaster.amazon.com. 1 7200 900 1209600 86400
aws.com.                86211   IN      A       184.72.117.127
aws.com.                86211   IN      A       54.209.129.73
aws.com.                172611  IN      NS      ns-1818.awsdns-35.co.uk.
aws.com.                172611  IN      NS      ns-527.awsdns-01.net.
aws.com.                172611  IN      NS      ns-1490.awsdns-58.org.
aws.com.                172611  IN      NS      ns-139.awsdns-17.com.

Received 421 bytes from 192.168.0.1#53 in 9 ms








Linux Commands#network
dig - How to use dig command in Linux
How to use nslookup Commands on Linux




os/linux/command/host.html.txt · Last modified: 2017/10/06 by admin

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