Windows Test-NetConnection -Port equivalent in Linux
Checks whether a TCP port accepts connections.
Test-NetConnection -Port
nc -vz host 443
nc -vz host 443
nc -vz host 443
Overview
What this command does
On Windows, "Test-NetConnection -Port" is used to test TCP port. On Linux, the closest practical mapping shown here is "nc -vz host 443". Checks whether a TCP port accepts connections. This reference is grouped under Networking → Diagnostics.
Windows → Linux context
What changes when you use this on Linux?
Equivalent task, different tool
Windows Test-NetConnection -Port maps to nc -vz host 443 for this task. Treat this as a workflow mapping rather than a character-for-character syntax translation.
Portable across the compared distros
The Debian/Ubuntu, Fedora and Arch rows use the same command in this mapping. Package availability or defaults can still vary, so check the installed tool version when an option behaves differently.
For the broader concept behind this mapping, read Linux networking for Windows users.
Practical tasks
Common use cases
Test TCP port
Checks whether a TCP port accepts connections.
nc -vz host 443
Test TCP port
nc --help
Show command help when supported
man nc
Open the manual page when installed
Ready to run
Copyable Linux commands
Review paths, device names, package names and permissions before running any command.
nc -vz host 443
Walkthrough
Examples with explanations
# Windows equivalent: Test-NetConnection -Port
nc -vz host 443Reference
Common options and variations
| Command or option | Use |
|---|---|
nc -vz host 443 | Test TCP port |
nc --help | Show command help when supported |
man nc | Open the manual page when installed |
Distro differences
Debian/Ubuntu vs Fedora vs Arch
Debian/Ubuntu, Fedora and Arch all use "nc -vz host 443" for this mapping. The command syntax shown here is portable across the three rows, although installed versions and system defaults can still vary.
| Distribution | Package manager / base | Equivalent command | Difference to notice |
|---|---|---|---|
| Debian/Ubuntu | same command | nc -vz host 443 |
Same command on this distribution. |
| Fedora | same command | nc -vz host 443 |
Same command on this distribution. |
| Arch | same command | nc -vz host 443 |
Same command on this distribution. |
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