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Commands tagged port

Commands tagged port from sorted by
Terminal - Commands tagged port - 8 results
nc -l <port-number>
2013-03-20 15:25:57
User: cybertoast
Tags: networking firewall socket port listen
-1
Up
Down
Listen on an arbitrary port

Simple way to test if a port is available to the public. Run this command on the "server" and run a `telnet host-ip port-number` on the client. Test by sending strings to the server, which will be displayed in the server terminal.

Comments (2) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
lsof -nPi tcp:80
2012-01-09 09:35:17
User: arighi
Tags: check port server port 80 listen
1
Up
Down
Show what PID is listening on port 80 on Linux
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fuser -v 80/tcp
2011-12-16 14:51:34
User: pykler
Functions: fuser
Tags: check port server port 80 listen
14
Up
Down
Show what PID is listening on port 80 on Linux
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checkport() { sudo nmap -sS -p $1 $2 }
2011-12-13 11:46:15
User: peterRepeater
Functions: sudo
Tags: nmap scan port
0
Up
Down
Check a port's state on a given host

Check to see if a port is open or closed on a given host.

Show sample output | Comments (1) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
netstat -tulpnc
2011-04-20 07:30:31
User: altern
Functions: netstat
Tags: networking port
0
Up
Down
showing opened ports on machine

shows opened ports on machine in continuous mode (refreshing every 10 sec)

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nc -z <IP> <TCP port> OR nc -zu <IP> <UDP port>
2011-04-01 04:08:53
User: frank514
Tags: telnet port
0
Up
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test connection to a remote IP / port

-z: Specifies that nc should just scan for listening daemons, without sending any data to them

-u: Use UDP instead of the default option of TCP.

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rsync --progress --partial --rsh="ssh -p 8322" --bwlimit=100 --ipv4 user@domain.com:~/file.tgz .
2011-02-10 14:25:22
User: ruslan
Functions: rsync
Tags: rsync scp port bandwidth ipv4
16
Up
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rsync instead of scp

The command copies a file from remote SSH host on port 8322 with bandwidth limit 100KB/sec;

--progress shows a progress bar

--partial turns partial download on; thus, you can resume the process if something goes wrong

--bwlimit limits bandwidth by specified KB/sec

--ipv4 selects IPv4 as preferred

I find it useful to create the following alias:

alias myscp='rsync --progress --partial --rsh="ssh -p 8322" --bwlimit=100 --ipv4'

in ~/.bash_aliases, ~/.bash_profile, ~/.bash_login or ~/.bashrc where appropriate.

Show sample output | Comments (2) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate
for i in {21..29}; do nc -v -n -z -w 1 192.168.0.$i 443; done
2009-09-25 03:31:29
User: rez0r
Tags: netcat scan scanner nc port
8
Up
Down
Port scan a range of hosts with Netcat.

Simple one-liner for scanning a range of hosts, you can also scan a range of ports with Netcat by ex.: nc -v -n -z -w 1 192.168.0.1 21-443

Useful when Nmap is not available:)

Range declaration like X..X "for i in {21..29}" is only works with bash 3.0+

Show sample output | Comments (2) | Add to favourites | Report as malicious | Submit alternative | Report as a duplicate