Port 70
gopher · TCP/UDP
| Range | System/well-known port (0–1023) |
|---|---|
| Protocol | TCP/UDP |
| Service | gopher |
Frequently asked questions
What is port 70 used for?
Port 70 is registered with the IANA for gopher (TCP/UDP). Description: Gopher.
Is port 70 a well-known port?
Yes. Port 70 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 70 is open?
Locally on Linux with ss -tulpn | grep ':70\b', on Windows with netstat -ano | findstr :70. To test a remote host use Test-NetConnection <host> -Port 70 in PowerShell or nc -zv <host> 70 on Linux/macOS.
How do I open port 70 in the firewall?
Ubuntu/Debian (ufw): sudo ufw allow 70/tcp. Fedora/RHEL (firewalld): sudo firewall-cmd --add-port=70/tcp --permanent, then firewall-cmd --reload. Windows (PowerShell as administrator): New-NetFirewallRule -DisplayName "Port 70" -Direction Inbound -Protocol TCP -LocalPort 70 -Action Allow.
IANA registry entries
| Protocol | Service | Description (IANA) |
|---|---|---|
| TCP | gopher | Gopher |
| UDP | gopher | Gopher |