- Serve it over HTTPS only and check the HTTP security headers.
- Keep admin consoles and development servers off the Internet.
- Patch the application server and remove default credentials and sample apps.
Port 9205: WAP vCal
Port 9205 is assigned by IANA to wap-vcal (WAP vCal).
9205
How wap-vcal works
WebA browser sends an HTTP request to port 9205 and the wap-vcal server sends the page back.
- Transport
- TCP · UDP
- Exposure risk
- not rated depends on the program listening
- Encryption
- Unknownnot stated by the registry
- IANA status
- Assigned1 registered service
- Range
- Registered (1024-49151)
- Category
- Web
Is port 9205 dangerous?
We have no specific security note for port 9205. Its risk depends on the program actually listening on it. General advice for web services:
IANA registry entries for port 9205
| Service | Port | Transport | Description | Reference | Updated |
|---|---|---|---|---|---|
| wap-vcal | 9205 | TCP, UDP | WAP vCal | - | - |
// source: IANA service name and port number registry
Which program uses port 9205, and is it reachable?
Linux
sudo ss -ltnup 'sport = :9205' # process listening on 9205
sudo lsof -nP -i :9205macOS
sudo lsof -nP -i :9205
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 9205 -State Listen | Select LocalAddress, OwningProcess Get-NetUDPEndpoint -LocalPort 9205 netstat -ano | findstr :9205
From another machine
nmap -p 9205 -sV <host> sudo nmap -sU -p 9205 <host> nc -zv <host> 9205
Block it in the firewall
sudo ufw deny 9205/tcp # Linux (ufw) New-NetFirewallRule -DisplayName "Block 9205" -Direction Inbound -LocalPort 9205 -Protocol TCP -Action Block # Windows
What is port 9205 used for?
Port 9205 is assigned by IANA to wap-vcal (WAP vCal).
Is port 9205 TCP or UDP?
Port 9205 is registered for TCP and UDP.
Is it safe to open port 9205?
It depends on the program that listens on it. Open it only for a service you know and only to the networks that need it. Serve it over HTTPS only and check the HTTP security headers.
How do I check if port 9205 is open?
On Linux run "ss -ltnup 'sport = :9205'", on macOS "lsof -nP -i :9205", and on Windows "netstat -ano | findstr :9205" to see the local process. From another machine, "nmap -p 9205 <host>" shows whether it is reachable.
Other web ports
:443 HTTPS tcp · udp · sctp · low risk :80 HTTP tcp · udp · sctp · moderate risk :8080 HTTP alternate tcp · udp · high risk :8443 HTTPS alternate tcp · udp · moderate risk :3000 Dev servers / Grafana tcp · udp · moderate risk :5000 Flask / Docker registry / UPnP tcp · udp · moderate risk :8000 HTTP alternate (dev) tcp · udp · moderate risk :8888 Jupyter / HTTP alternate tcp · udp · high risk