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// Other services

Port 2235: Sercomm-WLink

Port 2235 is assigned by IANA to sercomm-wlink (Sercomm-WLink).

2235

How sercomm-wlink works

Other services
client:2235sercomm-wlinkresponse client:2235sercomm-wlinkresponse

The client sends a request to port 2235 and the sercomm-wlink service answers.

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
Other services
01 Security

Is port 2235 dangerous?

We have no specific security note for port 2235. Its risk depends on the program actually listening on it. General advice for other services services:

  • Close the port if nothing on the host needs it.
  • Identify the process that listens on it (commands below) before opening it in a firewall.
  • Expose a service only to the networks that use it.
02 Registry

IANA registry entries for port 2235

ServicePortTransportDescriptionReferenceUpdated
sercomm-wlink 2235 TCP, UDP Sercomm-WLink - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 2235, and is it reachable?

Linux

sudo ss -ltnup 'sport = :2235'      # process listening on 2235
sudo lsof -nP -i :2235

macOS

sudo lsof -nP -i :2235

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 2235 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 2235
netstat -ano | findstr :2235

From another machine

nmap -p 2235 -sV <host>
sudo nmap -sU -p 2235 <host>
nc -zv <host> 2235

Block it in the firewall

sudo ufw deny 2235/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 2235" -Direction Inbound -LocalPort 2235 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 2235 used for?

Port 2235 is assigned by IANA to sercomm-wlink (Sercomm-WLink).

Is port 2235 TCP or UDP?

Port 2235 is registered for TCP and UDP.

Is it safe to open port 2235?

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. Close the port if nothing on the host needs it.

How do I check if port 2235 is open?

On Linux run "ss -ltnup 'sport = :2235'", on macOS "lsof -nP -i :2235", and on Windows "netstat -ano | findstr :2235" to see the local process. From another machine, "nmap -p 2235 <host>" shows whether it is reachable.

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