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

2 votes104 views1 answer
Fsl bet
Shell/Bash
0 vote165 views1 answer
Laravel 4 installer
Shell/Bash
1 vote151 views1 answer
2019 VS MS build broken after install
Shell/Bash
24 votes148 views2 answers
How to update git on windows
Shell/Bash
18 votes142 views3 answers
Git bash set global username and password
Shell/Bash
25 votes150 views4 answers
Sudo apt uninstall
Shell/Bash
16 votes135 views2 answers
How to remove a non empty directory in linux
Shell/Bash
0 vote139 views2 answers
Mariadb references invalid table(s) or column(s) or function(s) or definer/invoker of view lack rights to use them
Shell/Bash
0 vote131 views1 answer
Refusing to merge unrelated git
Shell/Bash
13 votes139 views1 answer
Sharp npm
Shell/Bash