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// Web

Port 9207: WAP vCal Secure

Port 9207 is assigned by IANA to wap-vcal-s (WAP vCal Secure).

9207

How wap-vcal-s works

Web
browser:9207wap-vcal-s browser:9207wap-vcal-s

A browser sends an HTTP request to port 9207 and the wap-vcal-s 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
01 Security

Is port 9207 dangerous?

We have no specific security note for port 9207. Its risk depends on the program actually listening on it. General advice for web services:

  • 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.
02 Registry

IANA registry entries for port 9207

ServicePortTransportDescriptionReferenceUpdated
wap-vcal-s 9207 TCP, UDP WAP vCal Secure - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 9207, and is it reachable?

Linux

sudo ss -ltnup 'sport = :9207'      # process listening on 9207
sudo lsof -nP -i :9207

macOS

sudo lsof -nP -i :9207

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 9207 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 9207
netstat -ano | findstr :9207

From another machine

nmap -p 9207 -sV <host>
sudo nmap -sU -p 9207 <host>
nc -zv <host> 9207

Block it in the firewall

sudo ufw deny 9207/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 9207" -Direction Inbound -LocalPort 9207 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 9207 used for?

Port 9207 is assigned by IANA to wap-vcal-s (WAP vCal Secure).

Is port 9207 TCP or UDP?

Port 9207 is registered for TCP and UDP.

Is it safe to open port 9207?

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 9207 is open?

On Linux run "ss -ltnup 'sport = :9207'", on macOS "lsof -nP -i :9207", and on Windows "netstat -ano | findstr :9207" to see the local process. From another machine, "nmap -p 9207 <host>" shows whether it is reachable.

05 Related
: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

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