Commands using dig sorted by votes

Commands using dig (42)

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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. Show Sample Output
This is sample output - yours may be different.
```
$ dig +short txt unix.wp.dg.cx
"Unix (officially trademarked as UNIX, sometimes also written as Unix with small caps) is a computer operating system originally developed in 1969 by a group of AT&T employees at Bell Labs, including Ken Thompson, Dennis Ritchie, Douglas McIlroy, and Joe O" "ssanna. Today's Unix systems are split into various branches, developed over time by AT&T as well as various commercial... http://a.vu/w:Unix"
```
211

dig +short txt <keyword>.wp.dg.cx

drizzt · 2009-07-31 16:08:59 204
Get your outgoing IP address

Instead of opening your browser, googling "whatismyip"... Also useful for scripts. dig can be found in the dnsutils package.
This is sample output - yours may be different.
36

dig +short myip.opendns.com @resolver1.opendns.com

dooblem · 2010-04-02 21:53:26 20
Check if your ISP is intercepting DNS queries

It's somewhat common ISPs to intercept DNS queries at port 53 and resolve them at their own. To check if your ISP is intercepting your DNS queries just type this command in the terminal. "#.abc" it's an OK answer. But if you get something like "I am not an OpenDNS resolver.", yep, you are beign cheated by your ISP.
This is sample output - yours may be different.
19

dig +short which.opendns.com txt @208.67.220.220

dinorox · 2014-02-09 19:24:33 15
Query Wikipedia via console over DNS

Shorter version, works with multiple words. Show Sample Output
This is sample output - yours may be different.
```
$ mwiki Richard Stallman
"Richard Matthew Stallman (born March 16, 1953), often abbreviated \"rms\", is an American software freedom activist, hacker, and software developer. http://en.wikipedia.org/wiki/Richard_Stallman"
```
9

mwiki() { dig +short txt "$*".wp.dg.cx; }

dorin · 2010-03-27 17:54:36 10
Outgoing IP of server

Faster than the curl/wget-approaches.
This is sample output - yours may be different.
9

dig +short @resolver1.opendns.com myip.opendns.com

John_W · 2010-07-30 15:32:21 5

Determine what version of bind is running on a dns server.

Due to the recent dynamic update vulnerability with bind, I was forced to dig a little deeper into dig... Show Sample Output

dig -t txt -c chaos VERSION.BIND @<dns.server.com>

din7 · 2009-07-30 18:38:39 10

a function to find the fastest free DNS server

Uses GNU Parallel. Show Sample Output
This is sample output - yours may be different.
```
208.67.222.222  ;; Query time: 18 msec
208.67.220.220  ;; Query time: 18 msec
198.153.194.1   ;; Query time: 22 msec
8.8.8.8 ;; Query time: 14 msec
8.8.4.4 ;; Query time: 18 msec
156.154.70.1    ;; Query time: 27 msec
198.153.192.1   ;; Query time: 42 msec
156.154.71.1    ;; Query time: 33 msec
```
8

timeDNS() { parallel -j0 --tag dig @{} "$*" ::: 208.67.222.222 208.67.220.220 198.153.192.1 198.153.194.1 156.154.70.1 156.154.71.1 8.8.8.8 8.8.4.4 | grep Query | sort -nk5; }

unixmonkey74668 · 2015-04-26 08:22:32 31
Check reverse DNS

The +short option should make dig less chatty.
This is sample output - yours may be different.
7

dig +short -x {ip}

putnamhill · 2009-12-21 14:43:35 4
Get MX records for a domain
This is sample output - yours may be different.
6

dig foo.org mx +short

wwest4 · 2009-02-05 21:29:14 27
Query Wikipedia via console over DNS
This is sample output - yours may be different.
6

mwiki () { blah=`echo $@ | sed -e 's/ /_/g'`; dig +short txt $blah.wp.dg.cx; }

oshazard · 2010-01-16 07:13:43 4
Lookup your own IPv4 address
This is sample output - yours may be different.
5

dig +short myip.opendns.com @resolver1.opendns.com

grawity · 2010-01-11 17:00:32 9
What is my public IP-address?

Very effective, use only DNS protocol. The @ part is optional if you already set opendns servers as default ns servers.
This is sample output - yours may be different.
5

dig @208.67.222.222 myip.opendns.com

CodSpirit · 2010-08-01 13:58:54 6
Get your external IP address if your machine has a DNS entry
This is sample output - yours may be different.
4

dig +short $HOSTNAME

stuart · 2009-08-09 02:05:38 5

Perform a reverse DNS lookup

Performs a reverse DNS lookup, variants include: nslookup 74.125.45.100 or: host 74.125.45.100 Show Sample Output

dig -x 74.125.45.100

postrational · 2009-09-28 15:13:34 3

Get the list of root nameservers for a given TLD

Show Sample Output
This is sample output - yours may be different.
```
a0.org.afilias-nst.info.
a2.org.afilias-nst.info.
b0.org.afilias-nst.org.
b2.org.afilias-nst.org.
c0.org.afilias-nst.info.
d0.org.afilias-nst.org.
```
4

dig +short NS org.

dpoblador · 2010-04-21 15:10:47 4
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.
This is sample output - yours may be different.
4

dig +trace google.com

duxklr · 2010-09-03 18:57:29 8
Get IP from hostname
This is sample output - yours may be different.
4

dig +short google.com

stubby · 2010-10-26 03:22:14 9
Get your current Public IP
This is sample output - yours may be different.
3

dig myip.opendns.com @Resolver1.opendns.com +short

jlaunay · 2012-07-21 01:18:18 4
Lookup hostname for IP address
This is sample output - yours may be different.
3

dig +short -x <ip-address>

harpo · 2013-01-07 14:06:49 65
External IP (raw data)
This is sample output - yours may be different.
3

dig +short myip.opendns.com @resolver1.opendns.com

petiteabeille · 2013-09-17 21:09:19 296
Get just the IP for a hostname
This is sample output - yours may be different.
2

dig hostname a +short

bartman75 · 2010-10-30 19:25:55 4
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. Show Sample Output
This is sample output - yours may be different.
```
>>> Nameservers for google.com from NS1.GOOGLE.COM <<<
ns3.google.com.
ns1.google.com.
ns4.google.com.
ns2.google.com.

>>> Nameservers for google.com from NS2.GOOGLE.COM <<<
ns3.google.com.
ns4.google.com.
ns2.google.com.
ns1.google.com.

>>> Nameservers for google.com from NS3.GOOGLE.COM <<<
ns1.google.com.
ns4.google.com.
ns2.google.com.
ns3.google.com.

>>> Nameservers for google.com from NS4.GOOGLE.COM <<<
ns2.google.com.
ns3.google.com.
ns1.google.com.
ns4.google.com.
```
2

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;

laebshade · 2011-05-08 04:46:34 5

Query wikipedia over DNS

Show Sample Output

wiki() { local IFS=_; dig +short txt "${*^}".wp.dg.cx; }

RanyAlbeg · 2011-09-16 00:12:42 21

Remove invalid key from the known_hosts file for the IP address of a host

Quick shortcut if you know the hostname and want to save yourself one step for looking up the IP address separately.
This is sample output - yours may be different.
2

ssh-keygen -R $(dig +short host.domain.tld)

atoponce · 2012-01-19 15:08:50 4
Check reverse DNS
This is sample output - yours may be different.
1

dig -x {IP}

Strubbl · 2009-12-21 12:13:30 4
1 2 >

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Determine next available UID

better with accounts on ldap

Find usb device in realtime

Using this command you can track a moment when usb device was attached.

Know which modules are loaded on an Apache server

This let you know which modules has loaded the Apache server, very useful to know if the mod_rewrite is ready to use.

Debug a remote php application (behind firewall) using ssh tunnel for XDEBUG port 9000

If you need to xdebug a remote php application, which is behind a firewall, and you have an ssh daemon running on that machine. you can redirect port 9000 on that machine over to your local machine from which you run your xdebug client (I am using phpStorm) So, run this command on your local machine and start your local xdebug client, to start debugging. more info: http://code.google.com/p/spectator/wiki/Installing

List all files/folders in working directory with their total size in Megabytes

Watch RX/TX rate of an interface in kb/s

A shorter version

Exiftool adjust Date & Time of pictures

Change the original date set by camera : Create Date : 2020:08:21 13:26:24.63 //Operating System: Date Created (ie: sdcard) Date/Time Original : 2020:08:21 13:26:24.63 // Set by camrea when you point and click for photo Modify Date : 2020:08:21 13:26:24.63 //Operating System: Modified (ie: sdcard) Exif argument examples are : exiftool.exe “-DateTimeOriginal+=0:0:0 5:30:0” filename.jpg (add 5 hours and 30 minutes to the Exif Date/Time Original) exiftool.exe" "-modifydate-=0:0:0 0:25:0" filename.jpg (reduce the Exif Modify Date to 25 minutes) exiftool.exe “-AllDates+=Y:M:D h:m:s” filename.jpg (Change all exif date values to Y:M:D h:m:s)

copy root to new device

Clone a root partition. The reason for double-mounting the root device is to avoid any filesystem overlay issues. This is particularly important for /dev. Also, note the importance of the trailing slashes on the paths when using rsync (search the man page for "slash" for more details). rsync and bash add several subtle nuances to path handling; using trailing slashes will effectively mean "clone this directory", even when run multiple times. For example: run once to get an initial copy, and then run again in single user mode just before rebooting into the new disk. Using file globs (which miss dot-files) or leaving off the trailing slash with rsync (which will create /mnt/target/root) are traps that are easy to fall into.

find all writable (by user) files in a directory tree (use 4 for readable, 1 for executable)

Generate random valid mac addresses

Ruby version. Also, a perl version: $perl -e 'printf("%.2x.",rand(255))for(1..5);printf("%.2x\n",rand(255))'

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Commands using dig (42)

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