Port 195
dn6-nlm-aud · TCP/UDP
| Range | System/well-known port (0–1023) |
|---|---|
| Protocol | TCP/UDP |
| Service | dn6-nlm-aud |
Frequently asked questions
What is port 195 used for?
Port 195 is registered with the IANA for dn6-nlm-aud (TCP/UDP). Description: DNSIX Network Level Module Audit.
Is port 195 a well-known port?
Yes. Port 195 is in the range 0–1023 (system or well-known ports). On Linux and macOS only privileged processes may bind to these ports.
How do I check whether port 195 is open?
Locally on Linux with ss -tulpn | grep ':195\b', on Windows with netstat -ano | findstr :195. To test a remote host use Test-NetConnection <host> -Port 195 in PowerShell or nc -zv <host> 195 on Linux/macOS.
How do I open port 195 in the firewall?
Ubuntu/Debian (ufw): sudo ufw allow 195/tcp. Fedora/RHEL (firewalld): sudo firewall-cmd --add-port=195/tcp --permanent, then firewall-cmd --reload. Windows (PowerShell as administrator): New-NetFirewallRule -DisplayName "Port 195" -Direction Inbound -Protocol TCP -LocalPort 195 -Action Allow.
IANA registry entries
| Protocol | Service | Description (IANA) |
|---|---|---|
| TCP | dn6-nlm-aud | DNSIX Network Level Module Audit |
| UDP | dn6-nlm-aud | DNSIX Network Level Module Audit |