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Commands tagged dns

Commands tagged dns from sorted by
Terminal - Commands tagged dns - 22 results
dig +noall +answer exsample.com
2011-12-09 12:53:59
User: sugy
Functions: dig
Tags: dig dns
0
Up
Down
print only answer section.
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kill -SIGHUP `cat /var/run/mydns.pid`
2011-10-21 14:29:24
User: ironmarc
Functions: kill
Tags: dns cache flush flush dns mydns
1
Up
Down
clear MyDNS-ng cache

Occasionally, to force zone updating, cache flush is necessary. This command is better than restart the mydns daemon.

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rndc flush
2011-10-21 14:27:05
User: ironmarc
Functions: rndc
Tags: dns cache flush bind bind9 flush dns rndc
2
Up
Down
Empty Bind9 cache

Occasionally, to force zone updating, cache flush is necessary. Use this command is better than restart the Bind9 process.

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domain=google.com; for ns in $(whois $domain | awk -F: '/Name Server/{print $2}'); do echo ">>> Nameservers for $domain from $a <<<"; dig @$ns $domain ns +short; echo; done;
2011-05-08 04:46:34
User: laebshade
Functions: awk dig echo whois
Tags: awk grep for dig dns whois for loop nameserver glue record
0
Up
Down
Check to make sure the whois nameservers match the nameserver records from the nameservers themselves

Change the $domain variable to whichever domain you wish to query.

Works with the majority of whois info; for some that won't, you may have to compromise:

domain=google.com; for a in $(whois $domain | grep "Domain servers in listed order:" --after 3 | grep -v "Domain servers in listed order:"); do echo ">>> Nameservers for $domain from $a

Note that this doesn't work as well as the first one; if they have more than 3 nameservers, it won't hit them all.

As the summary states, this can be useful for making sure the whois nameservers for a domain match the nameserver records (NS records) from the nameservers themselves.

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mwiki () { dig +short txt `echo $*|sed 's| *|_|g'`.wp.dg.cx; }
2011-01-31 16:50:44
User: vjt
Functions: dig sed
Tags: dig txt record wikipedia dns
1
Up
Down
Query Wikipedia via console over DNS
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dig +trace google.com
2010-09-03 18:57:29
User: duxklr
Functions: dig
Tags: dig dns
4
Up
Down
Trace a DNS query from root to the authoritive servers.

Simple command to trace a DNS query from the root all the way to the authoritative servers.

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nslookup -q=txt <topic>.wp.dg.cx
2010-05-02 21:37:51
User: bandie91
Functions: nslookup
Tags: dig txt record wikipedia dns
2
Up
Down
Query Wikipedia via console over DNS
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dig +short NS org.
2010-04-21 15:10:47
User: dpoblador
Functions: dig
Tags: dig dns TLD root nameservers
3
Up
Down
Get the list of root nameservers for a given TLD
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curl icanhazip.com
2010-04-16 23:13:30
User: unixmonkey9355
Tags: dig dns ip address
1
Up
Down
Get your outgoing IP address
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dig +short myip.opendns.com @resolver1.opendns.com
2010-04-02 21:53:26
User: dooblem
Functions: dig
Tags: dig dns ip address
17
Up
Down
Get your outgoing IP address

Instead of opening your browser, googling "whatismyip"...

Also useful for scripts.

dig can be found in the dnsutils package.

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mwiki() { dig +short txt "$*".wp.dg.cx; }
2010-03-27 17:54:36
User: dorin
Functions: dig
Tags: dig txt record wikipedia dns
4
Up
Down
Query Wikipedia via console over DNS

Shorter version, works with multiple words.

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sed -i 's/20[0-1][0-9]\{7\}/'`date +%Y%m%d%I`'/g' *.db
2010-03-24 07:28:58
User: alf
Functions: sed
Tags: Linux sed serial date dns cpanel
5
Up
Down
Update zone file Serial numbers

Will edit *.db files in the same directory with todays date. Useful for doing a mass update to domains on a nameserver, adding spf records, etc.

Looks for a string starting with 200 or 201 followed by 7 numbers, and replaces with todays date. This won't overwrite Ip's but i would still do some double checking after running this.

Make sure your server's date is correct, otherwise insert your own serial number.

rndc reload

should usually follow this command.

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mwiki () { blah=`echo $@ | sed -e 's/ /_/g'`; dig +short txt $blah.wp.dg.cx; }
2010-01-16 07:13:43
User: oshazard
Functions: dig sed
Tags: dig txt record wikipedia dns
5
Up
Down
Query Wikipedia via console over DNS
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dig +short myip.opendns.com @resolver1.opendns.com
2010-01-11 17:00:32
User: grawity
Functions: dig
Tags: dns
4
Up
Down
Lookup your own IPv4 address
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nslookup {ip}
2009-12-21 15:01:24
User: pjacob
Functions: nslookup
Tags: IP reverse dig dns
-7
Up
Down
Check reverse DNS
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dig +short -x {ip}
2009-12-21 14:43:35
User: putnamhill
Functions: dig
Tags: IP reverse dig dns
6
Up
Down
Check reverse DNS

The +short option should make dig less chatty.

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dig -x {IP}
2009-12-21 12:13:30
User: Strubbl
Functions: dig
Tags: IP reverse dns
1
Up
Down
Check reverse DNS
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host {checkIp or hostname} [dns server]
2009-12-21 11:48:00
User: mccalni
Functions: host
Tags: IP reverse dns
3
Up
Down
Check reverse DNS

I'm just a simple programmer. I find dig too verbose. host tells me alias(es) and IP address in a quick to grok format with nothing special to remember for input parameters.

With thanks to http://www.cyberciti.biz/faq/how-to-test-or-check-reverse-dns/

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check_dns_no() { for i in $* ; do if `wget -O - -q http://www.norid.no/domenenavnbaser/whois/?query=$i.no | grep "no match" &>/dev/null` ; then echo $i.no "available" ; fi ; sleep 1 ;done }
2009-09-30 21:17:33
User: xeor
Functions: echo grep sleep
Tags: wget dig dns
0
Up
Down
Check if a .no domain is available

Mostly for Norwegians, but easily adoptable to others. Very handy if you are brainstorming for a new domainname.

Will only display the available ones..

You can usually do this better with dig, but if you dont have dig, or the TLD only have an online service to check with, this will be usefull..

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nmap -R -sL 209.85.229.99/27 | awk '{if($3=="not")print"("$2") no PTR";else print$3" is "$2}' | grep '('
2009-09-02 16:33:15
User: netsaint
Functions: awk grep
Tags: nmap dns
4
Up
Down
List of reverse DNS records for a subnet

This command uses nmap to perform reverse DNS lookups on a subnet. It produces a list of IP addresses with the corresponding PTR record for a given subnet. You can enter the subnet in CDIR notation (i.e. /24 for a Class C)). You could add "--dns-servers x.x.x.x" after the "-sL" if you need the lookups to be performed on a specific DNS server.

On some installations nmap needs sudo I believe. Also I hope awk is standard on most distros.

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dig google.com
2009-08-28 04:32:52
User: unixbhaskar
Functions: dig
Tags: dns
-1
Up
Down
Use dig instead of nslookup

It is a much better tool then nslookup for getting information about the any site.It has got better capability too.For reverse information please use the switch "-x" and the ip address.

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dig +short txt <keyword>.wp.dg.cx
2009-07-31 16:08:59
User: drizzt
Functions: dig
Tags: dig txt record wikipedia dns
162
Up
Down
Query Wikipedia via console over DNS

Query Wikipedia by issuing a DNS query for a TXT record. The TXT record will also include a short URL to the complete corresponding Wikipedia entry.You can also write a little shell script like:

$ cat wikisole.sh

#!/bin/sh

dig +short txt ${1}.wp.dg.cx

and run it like

./wikisole.sh unix

were your first option ($1) will be used as search term.

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