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// Other services

Port 36700: MapX communication

Port 36700 is assigned by IANA to mapx (MapX communication).

36700

How mapx works

Other services
client:36700mapxresponse client:36700mapxresponse

The client sends a request to port 36700 and the mapx service answers.

Transport
TCP
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 36700 dangerous?

We have no specific security note for port 36700. 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 36700

ServicePortTransportDescriptionReferenceUpdated
mapx 36700 TCP MapX communication - 2014-10-13
-36700-Reserved--

// source: IANA service name and port number registry

03 Check it

Which program uses port 36700, and is it reachable?

Linux

sudo ss -ltnup 'sport = :36700'      # process listening on 36700
sudo lsof -nP -i :36700

macOS

sudo lsof -nP -i :36700

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 36700 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 36700
netstat -ano | findstr :36700

From another machine

nmap -p 36700 -sV <host>
nc -zv <host> 36700

Block it in the firewall

sudo ufw deny 36700/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 36700" -Direction Inbound -LocalPort 36700 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 36700 used for?

Port 36700 is assigned by IANA to mapx (MapX communication).

Is port 36700 TCP or UDP?

Port 36700 is registered for TCP.

Is it safe to open port 36700?

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 36700 is open?

On Linux run "ss -ltnup 'sport = :36700'", on macOS "lsof -nP -i :36700", and on Windows "netstat -ano | findstr :36700" to see the local process. From another machine, "nmap -p 36700 <host>" shows whether it is reachable.

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