Commands tagged Network sorted by votes

Commands tagged Network (129)

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XML version. Additionally it may give your geolocation if it's known by hostip.info Show Sample Output

-1

curl http://my-ip.cc/host.xml

samleb · 2011-09-01 00:30:03 3

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
This is sample output - yours may be different.
```
192.168.1.1
192.168.1.2
192.168.1.7
192.168.1.8
```
-1

fping -g 192.168.1.1 192.168.1.10 -r 1 | grep -v unreachable | awk '{print $1}'

Dhinesh · 2011-11-19 09:11:56 5
Get your external IP address
This is sample output - yours may be different.
-1

wget ifconfig.me/ip -q -O -

DamirX · 2011-11-30 08:30:35 3
send echo to socket network

you can use a pair of commands to test firewalls. 1st launch this command at destination machine ncat -l [-u] [port] | cat then use this command at source machine to test remote port echo foo | ncat [-u] [ip address] [port] First command will listen at specified port. It will listen TCP. If you use -u option will listen UDP. Second command will send "foo" through ncat and will reach defined IP and port. Show Sample Output
This is sample output - yours may be different.
```
"foo" if it's working
"Ncat: Connection refused." if it's not
```
-1

echo foo | ncat [ip address] [port]

dragonauta · 2012-10-26 10:53:47 6
Show live HTTP requests being made on OS X

Replace "en1" with your network interface (on OS X, usually en0, en1, eth0, etc..) Show Sample Output
This is sample output - yours may be different.
```
GET /services/rest/news/new/?stamp=1238809183049 HTTP/1.1
Host: www.qbn.com
GET / HTTP/1.1
Host: news.bbc.co.uk
GET /services/rest/news/new/?stamp=1238809185049 HTTP/1.1
Host: www.qbn.com
```
-2

sudo tcpdump -i en1 -n -s 0 -w - | grep -a -o -E "Host\: .*|GET \/.*"

peterc · 2009-04-04 01:41:48 8
Echo the local IP addresses of the machines on your local network

If you need to ssh into a computer on the local network but you're unsure of the ip to use, then ping them and see if you get a response. If you do, print out the address you got it from. Adjust the range to suit your network.
This is sample output - yours may be different.
-2

for i in 192.168.1.{61..71};do ping -c 1 $i &> /dev/null && echo $i;fi;done

AlecSchueler · 2009-08-26 06:04:24 11
Show Network IP and Subnet

Require ips and ipcalc Show Sample Output
This is sample output - yours may be different.
```
192.168.0.1/24
```
-2

IP=`ifconfig eth0 | grep "inet addr:" | ips |cut -d ":" -f 2 | cut -d " " -f 1`;SUBNET=`ifconfig eth0 | grep "inet addr:" | ips |cut -d ":" -f 3 | cut -d " " -f 1`;RANGE=`ipcalc $IP/$SUBNET | grep "Network:" | cut -d ' ' -f 4`;echo $RANGE

guelfoweb · 2009-12-05 01:19:31 3
Find MAC address of Active Eth connection
This is sample output - yours may be different.
-2

/sbin/ifconfig|grep -B 1 inet |head -1 | awk '{print $5}'

octopus · 2010-04-22 06:35:29 6
List alive hosts in specific subnet
This is sample output - yours may be different.
-2

for i in 192.168.1.{1..254} ; do if ping -c1 -w1 $i &>/dev/null; then echo $i alive; fi; done

wiburg · 2010-06-12 18:38:36 3
Get your external IP address

With a lolcat favicon if you access it from your browser Show Sample Output
This is sample output - yours may be different.
```
172.0.0.100
```
-2

curl icanhazip.com

pykler · 2010-06-14 18:47:11 3
Get your external IP address

Here's a version that uses netcat (although I'd much rather use curl!).
This is sample output - yours may be different.
-2

echo -e "GET /ip HTTP/1.0\nUser-Agent: netcat\nHOST: ifconfig.me\n\n" | nc ifconfig.me 80 | sed -n '/^[0-9]/p'

putnamhill · 2010-06-16 19:08:05 3
Find default gateway

Find your default gateway and print it directly output http://www.bilgisayarmatematik.com/ kerim@bayner.com Show Sample Output
This is sample output - yours may be different.
```
192.168.1.1
```
-2

route -n | awk '$2 ~/[1-9]+/ {print $2;}'

kerim · 2010-08-08 23:51:07 7
List your MACs address

Linux specific, requires iproute2 (but most distros have that by default now)
This is sample output - yours may be different.
-2

ip addr show eth0 | grep ether | awk '{print $2}'

ryanc · 2011-05-01 19:54:46 4
Get the IP address of a machine. Just the IP, no junk.
This is sample output - yours may be different.
-2

ifconfig -a | awk '/Bcast/{print $2}' | cut -c 5-19

BigCow · 2013-04-10 14:18:25 5
Get the IP address of a machine

No junk, no pipe, one command, no subcommand - KISS Show Sample Output
This is sample output - yours may be different.
```
192.168.1.0
```
-2

ifdata -pN eth0

unixmonkey45290 · 2013-04-12 15:05:36 7
Check if TCP port 25 is open
This is sample output - yours may be different.
-2

sudo lsof -iTCP:25

netaxiz · 2013-11-20 08:26:37 9
Check if TCP port 25 is open
This is sample output - yours may be different.
-2

netstat -lntp

fr00tyl00p · 2013-11-20 10:02:10 6
Get external IP address (supports IPv4 and IPv6)

ip.telize.com (Listen on both IPv4 and IPv6) ip4.telize.com (Listen on IPv4 only) ip6.telize.com (Listen on IPv6 only) More information on : http://www.telize.com
This is sample output - yours may be different.
-2

curl ip.telize.com

fcambus · 2014-02-04 12:25:52 7
Get your external IP address

bash neto..
This is sample output - yours may be different.
-3

exec 3<>/dev/tcp/whatismyip.com/80; echo -e "GET /automation/n09230945.asp HTTP/1.0\r\nHost: whatismyip.com\r\n" >&3; a=( $(cat <&3) ); echo ${a[${#a[*]}-1]};

yaccovs · 2009-11-03 21:57:00 6
Get your external IP address
This is sample output - yours may be different.
-3

curl whatismyip.org

m8t · 2009-11-04 21:40:31 3
Get your external IP address

If curl isn't available, use lynx.
This is sample output - yours may be different.
-3

lynx --dump icanhazip.com

111110100 · 2010-06-16 11:52:50 3
Get your external IP address

Another simple way to get external IP or use: wget -qO- http://ipecho.net/plain
This is sample output - yours may be different.
-3

curl http://ipecho.net/plain

maxwelleite · 2013-02-20 14:14:19 5
Get the IP address of a machine. Just the IP, no junk.
This is sample output - yours may be different.
-3

ifconfig -a | awk '/Bcast/{print $2}' | cut -c 5-19

BigCow · 2013-04-10 14:18:47 5
Ping 10 times then quit

On Linux and Mac systems (I have not tested with other Unix systems), the ping command will keep on pinging until the user interrupts it with Ctrl+C. On Windows system, ping will execute for a number of times then quit. The -c flag on Linux and Mac will make this happen
This is sample output - yours may be different.
-4

ping -c 10 hostname

haivu · 2009-03-04 06:14:52 6
Get your external IP address
This is sample output - yours may be different.
-4

echo -e "GET /automation/n09230945.asp HTTP/1.0\r\nHost: whatismyip.com\r\n" | nc whatismyip.com 80 | tail -n1

Marko · 2009-11-03 15:18:20 14
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Printing multiple years with Unix cal command

print multiple increasing years using cal - calendar -. You can also try $seq Start Increment End

Sorts and compare 2 files line by line

remove oprhan package on debian based system

Create a new file

Convert CSV to JSON

Replace 'csv_file.csv' with your filename.

Which processes are listening on a specific port (e.g. port 80)

swap out "80" for your port of interest. Can use port number or named ports e.g. "http"

send substituted text to a command without echo, pipe

zsh only - This avoids the need for echo "message" | which creates an entire subshell. Also, the text you are most likely to edit is at the very end of the line, which, in my opinion, makes it slightly easier to edit.

move a lot of files over ssh

copy files to a ssh server with gzip compression

shows history of logins on the server

outputs a history of logins on the server (top 10, when piped to 'head'); optional flags: '-a' put the hostname at the end of the line (good for long hostnames), '-i' post the IP instead of the hostname, '-F' put the full login and logout times, rather than short times.

Print all /etc/passwd lines with duplicated uid

Prints all the lines in /etc/passwd belonging to users with a duplicated uid. It also adds the hostname to the beginning of the line. It's been tested in AIX, Solaris and Linux.

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Commands tagged Network (129)

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