Port 5639
ics · TCP/UDP
| Range | Registered port (1024–49151) |
|---|---|
| Protocol | TCP/UDP |
| Service | ics |
| Registered | 2012-05-07 |
Frequently asked questions
What is port 5639 used for?
Port 5639 is registered with the IANA for ics (TCP/UDP). Description: Symantec Integrity Checking Service; Reserved.
Is port 5639 a well-known port?
No. Port 5639 is in the range 1024–49151 (registered or user ports). Ordinary programs may open it without root privileges.
How do I check whether port 5639 is open?
Locally on Linux with ss -tulpn | grep ':5639\b', on Windows with netstat -ano | findstr :5639. To test a remote host use Test-NetConnection <host> -Port 5639 in PowerShell or nc -zv <host> 5639 on Linux/macOS.
How do I open port 5639 in the firewall?
Ubuntu/Debian (ufw): sudo ufw allow 5639/tcp. Fedora/RHEL (firewalld): sudo firewall-cmd --add-port=5639/tcp --permanent, then firewall-cmd --reload. Windows (PowerShell as administrator): New-NetFirewallRule -DisplayName "Port 5639" -Direction Inbound -Protocol TCP -LocalPort 5639 -Action Allow.
IANA registry entries
| Protocol | Service | Description (IANA) |
|---|---|---|
| TCP | ics | Symantec Integrity Checking Service |
| UDP | – | Reserved |