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// Other services

Port 7626: SImple Middlebox COnfiguration (SIMCO) Server

Port 7626 is assigned by IANA to simco (SImple Middlebox COnfiguration (SIMCO) Server).

7626

How simco works

Other services
client:7626simcoresponse client:7626simcoresponse

The client sends a request to port 7626 and the simco service answers.

Transport
TCP · SCTP
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 7626 dangerous?

We have no specific security note for port 7626. 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 7626

ServicePortTransportDescriptionReferenceUpdated
simco 7626 TCP, SCTP SImple Middlebox COnfiguration (SIMCO) Server RFC 4540 -
-7626-De-registered--

// source: IANA service name and port number registry

03 Check it

Which program uses port 7626, and is it reachable?

Linux

sudo ss -ltnup 'sport = :7626'      # process listening on 7626
sudo lsof -nP -i :7626

macOS

sudo lsof -nP -i :7626

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 7626 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 7626
netstat -ano | findstr :7626

From another machine

nmap -p 7626 -sV <host>
nc -zv <host> 7626

Block it in the firewall

sudo ufw deny 7626/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 7626" -Direction Inbound -LocalPort 7626 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 7626 used for?

Port 7626 is assigned by IANA to simco (SImple Middlebox COnfiguration (SIMCO) Server).

Is port 7626 TCP or UDP?

Port 7626 is registered for TCP and SCTP.

Is it safe to open port 7626?

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 7626 is open?

On Linux run "ss -ltnup 'sport = :7626'", on macOS "lsof -nP -i :7626", and on Windows "netstat -ano | findstr :7626" to see the local process. From another machine, "nmap -p 7626 <host>" shows whether it is reachable.

05 Related
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