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Commands tagged Network

Commands tagged Network from sorted by
Terminal - Commands tagged Network - 88 results
curl ifconfig.me/all
2012-05-16 18:22:28
User: pykler
Tags: Network curl ip address
6
Up
Down
Get your external IP and Network Info

Gets all kind of info, ifconfig.me rocks ...

for just the ip addess you can use ifconfig.me or ifconfig.me/ip

Show sample output | Comments (0) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
curl ip.nu
2012-04-08 19:43:36
User: VictorBjelkholm
Tags: Network curl ip address geoip
2
Up
Down
Get your external IP address ( 10 characters long )

Shortest url to a external IP-service, 10 characters.

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fping -r1 -Aag <network>/<cidr_mask> 2>/dev/null | sort -gt. -k4
2011-12-21 22:38:51
User: SuperJC
Functions: sort
Tags: Network
0
Up
Down
To know the IP address of the machine current running on the network

Prevents the need for the grep & awk statements. Sort is optional if you don't care about the output order. The network range can also be specified as in the original post.

-A Display targets by address rather than DNS name. (Probably unnecessary...)

-a Show systems that are alive.

S fping -r1 -ag 192.168.nnn.0/24 2>/dev/null

Without sorting...

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netstat -anpe
2011-12-06 18:27:09
User: anarcat
Functions: netstat
Tags: Network status diagnostic
1
Up
Down
Lists all listening ports together with the PID of the associated process

Lists all opened sockets (not only listeners), no DNS resolution (so it's fast), the process id and the user holding the socket.

Previous samples were limiting to TCP too, this also lists UDP listeners.

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wget ifconfig.me/ip -q -O -
2011-11-30 08:30:35
User: DamirX
Functions: wget
Tags: Network curl ip address
-1
Up
Down
Get your external IP address
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fping -g 192.168.1.1 192.168.1.10 -r 1 | grep -v unreachable | awk '{print $1}'
2011-11-19 09:11:56
User: Dhinesh
Functions: awk grep
Tags: Network
-1
Up
Down
To know the IP address of the machine current running on the network

List all the machine ip's currently running on your network

Show sample output | Comments (2) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
until ping -c1 ADDRESS;do true;done;zenity --warning --text "ADDRESS is back"
2011-09-26 18:51:38
User: marcusrp
Functions: ping
Tags: Network zenity
2
Up
Down
Set audible alarm when an IP address comes online

I'd rather this one on Gnome, as I'm used to be listening some music while working. I've even created a bash function which receives ADDRESS as parameter.

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route -n | perl -ne '$ANY="0.0.0.0"; /^$ANY/ and split /\s+/ and print "Gateway to the World: ",($_[1]!=$ANY)?$_[1]:(`ip address show $_[$#_]`=~/peer ([0-9\.]+)/ and $1),", via $_[$#_].\n"'
2011-09-13 08:05:58
User: bandie91
Functions: perl route split
Tags: Network perl IP router gateway
2
Up
Down
Find default gateway (proper at ppp connections too)
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curl http://my-ip.cc/host.json
2011-09-01 00:31:49
User: samleb
Tags: Network curl ip address geoip
0
Up
Down
Get your external IP address

JSON version.

Additionally it may give your geolocation if it's known by hostip.info

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curl http://my-ip.cc/host.xml
2011-09-01 00:30:03
User: samleb
Tags: Network curl ip address geoip
-1
Up
Down
Get your external IP address

XML version.

Additionally it may give your geolocation if it's known by hostip.info

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curl http://my-ip.cc/host.txt
2011-09-01 00:28:49
User: samleb
Tags: Network curl ip address geoip
-1
Up
Down
Get your external IP address

Additionally it may give your geolocation if it's known by hostip.info

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watch -n 2 -d '/sbin/ifconfig eth0'
2011-08-16 10:29:34
User: totti
Functions: watch
Tags: Network ifconfig watch
5
Up
Down
Highlight network TX, RX information change
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ip addr show eth0 | grep ether | awk '{print $2}'
2011-05-01 19:54:46
User: ryanc
Functions: awk grep
Tags: Network Linux
-2
Up
Down
List your MACs address

Linux specific, requires iproute2 (but most distros have that by default now)

Comments (1) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
while cat /proc/net/dev; do sleep 1; done | awk '/eth0/ {o1=n1; o2=n2; n1=$2; n2=$10; printf "in: %9.2f\t\tout: %9.2f\r", (n1-o1)/1024, (n2-o2)/1024}'
2011-03-26 02:52:14
User: quadcore
Functions: awk cat printf sleep
Tags: Network watch rate interface
1
Up
Down
Watch RX/TX rate of an interface in kb/s

A shorter version

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while :; do OLD=$NEW; NEW=`cat /proc/net/dev | grep eth0 | tr -s ' ' | cut -d' ' -f "3 11"`; echo $NEW $OLD | awk '{printf("\rin: % 9.2g\t\tout: % 9.2g", ($1-$3)/1024, ($2-$4)/1024)}'; sleep 1; done
2011-03-22 10:23:33
User: DerksIT
Functions: awk cut echo grep sleep tr
Tags: Network watch rate interface
0
Up
Down
Watch RX/TX rate of an interface in kb/s
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while [ /bin/true ]; do OLD=$NEW; NEW=`cat /proc/net/dev | grep eth0 | tr -s ' ' | cut -d' ' -f "3 11"`; echo $NEW $OLD | awk '{printf("\rin: % 9.2g\t\tout: % 9.2g", ($1-$3)/1024, ($2-$4)/1024)}'; sleep 1; done
2011-03-22 10:02:23
User: hons
Functions: awk cut echo grep sleep tr
Tags: Network watch rate interface
16
Up
Down
Watch RX/TX rate of an interface in kb/s

Just a simple way without the need of additional tools. Of course, replace eth0 with your IF.

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iperf -s
2011-01-24 07:58:38
User: forcefsck
Tags: Network test speed bandwidth throughput iperf
7
Up
Down
network throughput test

On the machine acting like a server, run:

iperf -s

On the machine acting like a client, run:

iperf -c ip.add.re.ss

where ip.add.re.ss is the ip or hostname of the server.

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nc -l -p 7777 > /dev/null
2011-01-24 00:06:45
User: kerim
Tags: Network netcat nc pv test speed throughput
1
Up
Down
live netcat network throughput test

On the another machine write this command.

pv -r /dev/zero | nc 192.168.1.1 7777

It will show live throughput between two machine.The destination machine ip is at our example 192.168.1.1

You must multiply by 8 for the network calculation.

You must install pv and netcat commands for this commands usage.

kerim@bayner.com

http://www.bayner.com/

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nmap -v -sP 192.168.10.0/24 | grep -c down
2011-01-04 11:20:27
User: ioggstream
Functions: grep
Tags: Network namp
1
Up
Down
count of down available ips

avoid wc overload ;)

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nmap -v -sP 192.168.10.0/24 | grep down | wc -l
2011-01-03 21:33:02
User: unixmonkey16033
Functions: grep wc
Tags: Network namp
1
Up
Down
count of down available ips
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python -c "from itertools import imap; from random import randint; print ':'.join(['%02x'%x for x in imap(lambda x:randint(0,255), range(6))])"
2010-12-08 11:02:16
User: ohe
Functions: python
Tags: Network bash mac
1
Up
Down
Generate random valid mac addresses

Python Alternative

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ruby -e 'puts (1..6).map{"%0.2X"%rand(256)}.join(":")'
2010-12-08 10:01:31
User: eightmillion
Tags: Network bash mac ruby
3
Up
Down
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))'
Comments (1) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
macchanger -A (nic)
2010-12-07 20:22:54
User: pebkac
Tags: Network bash mac
0
Up
Down
Generate random valid mac addresses

You have to install the package macchanger but this command will create a random mac from a list of known manufacturers. If you want to make a complete random mac, use the -r option .

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for i in {1..6}; do printf "%0.2X:" $[ $RANDOM % 0x100 ]; done | sed 's/:$/\n/'
2010-12-07 19:26:58
User: forcefsck
Functions: printf sed
Tags: Network bash mac
2
Up
Down
Generate random valid mac addresses

Shorter and more straightforward.

Also in perl:

perl -e 'print join(":", map { sprintf "%0.2X",rand(256) }(1..6))."\n"'
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h=0123456789ABCDEF;for c in {1..12};do echo -n ${h:$(($RANDOM%16)):1};if [[ $((c%2)) = 0 && $c != 12 ]];then echo -n :;fi;done;echo
2010-12-05 01:35:03
User: dabom
Functions: echo
Tags: Network bash mac
2
Up
Down
Generate random valid mac addresses

Doubt it actually generates valid mac addresses but this version doesn't need any external commands so it runs much faster.

Much shorter as well.

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