Ping a port linux

ping ip -p port

Linux ping a port

# Use the below command in your terminal
# No requirments are needed
(echo >/dev/tcp/{host}/{port}) &>/dev/null && echo "open" || echo "close"

# An example below
(echo >/dev/tcp/10.20.20.21/27017) &>/dev/null && echo "open" || echo "close"

# if open then it will return "open"
# if closed then it will return "close"
# if you can't connect to it then it will freeze, use ctrl+c

Similar codes

4 votes251 views2 answers
Wsl home folder location
Shell/Bash
0 vote221 views1 answer
Install python module ImageTk
Shell/Bash
2 votes202 views2 answers
Xrandr add 1920
Shell/Bash
6 votes217 views2 answers
Install tree in linux
Shell/Bash
0 vote210 views1 answer
Git find the commit that introduced a bug
Shell/Bash
2 votes240 views1 answer
Get current timestamp shell
Shell/Bash
0 vote245 views1 answer
Compress directory with bzip2
Shell/Bash
3 votes214 views1 answer
How to install all dependencies in package.json using npm reactnative
Shell/Bash
5 votes222 views2 answers
Linux refresh .bashrc
Shell/Bash
2 votes209 views2 answers
Zsh check if file exists
Shell/Bash