Ubuntu port ping

# 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

0 vote161 views1 answer
Git tab not workingh
Shell/Bash
0 vote147 views1 answer
Wsl2 curl localhost
Shell/Bash
0 vote168 views1 answer
Centos php install
Shell/Bash
6 votes158 views2 answers
Powershell delete folder
Shell/Bash
7 votes140 views1 answer
Please install the gcc make perl packages from your distribution.
Shell/Bash
0 vote135 views1 answer
Bash create user with encrypted password
Shell/Bash
1 vote145 views1 answer
"xcode-select: error: tool 'xcodebuild' requires Xcode, but active developer directory
Shell/Bash
0 vote157 views1 answer
Linux modsecurity allow googlebot
Shell/Bash
0 vote164 views2 answers
Arrow folder file github
Shell/Bash
4 votes190 views1 answer
Git echo remote origin
Shell/Bash