```
. .
\`-"'"-'/
} 6 6 {
==. Y ,==
/^^^\ .
/ \ )
( )-( )/ _
-""---""--- /
/ Ncat \_/
( ____
\_.=|____E
```
# Port Testing
### Test Single TCP Port
Test if port `22` is open on the host `192.168.56.10`.
```zsh
nc -vz 192.168.1.15 22
```
- `-v` enables verbose mode.
- `-z` sets nc to simply scan for listening daemons, without actually sending any data to them.
### Test Multiple Ports
```
nc -vz 192.168.1.15 22 80 443
```
## Test Port Range
```zsh
nc -vz 192.168.1.15 22-50
```