Port 6697
ircs-u · TCP/UDP
| Range | Registered port (1024–49151) |
|---|---|
| Protocol | TCP/UDP |
| Service | ircs-u |
| Reference | RFC 7194 |
| Registered | 2014-02-11 |
Frequently asked questions
What is port 6697 used for?
Port 6697 is registered with the IANA for ircs-u (TCP/UDP). Description: Internet Relay Chat via TLS/SSL; Reserved.
Is port 6697 a well-known port?
No. Port 6697 is in the range 1024–49151 (registered or user ports). Ordinary programs may open it without root privileges.
How do I check whether port 6697 is open?
Locally on Linux with ss -tulpn | grep ':6697\b', on Windows with netstat -ano | findstr :6697. To test a remote host use Test-NetConnection <host> -Port 6697 in PowerShell or nc -zv <host> 6697 on Linux/macOS.
How do I open port 6697 in the firewall?
Ubuntu/Debian (ufw): sudo ufw allow 6697/tcp. Fedora/RHEL (firewalld): sudo firewall-cmd --add-port=6697/tcp --permanent, then firewall-cmd --reload. Windows (PowerShell as administrator): New-NetFirewallRule -DisplayName "Port 6697" -Direction Inbound -Protocol TCP -LocalPort 6697 -Action Allow.
IANA registry entries
| Protocol | Service | Description (IANA) |
|---|---|---|
| TCP | ircs-u | Internet Relay Chat via TLS/SSL |
| UDP | – | Reserved |