- 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.
Port 2373: Remograph License Manager
Port 2373 is assigned by IANA to remographlm (Remograph License Manager).
2373
How remographlm works
Other servicesThe client sends a request to port 2373 and the remographlm 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
Is port 2373 dangerous?
We have no specific security note for port 2373. Its risk depends on the program actually listening on it. General advice for other services services:
IANA registry entries for port 2373
| Service | Port | Transport | Description | Reference | Updated |
|---|---|---|---|---|---|
| remographlm | 2373 | TCP | Remograph License Manager | - | 2009-01-21 |
| - | 2373 | - | Reserved | - | - |
// source: IANA service name and port number registry
Which program uses port 2373, and is it reachable?
Linux
sudo ss -ltnup 'sport = :2373' # process listening on 2373
sudo lsof -nP -i :2373macOS
sudo lsof -nP -i :2373
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 2373 -State Listen | Select LocalAddress, OwningProcess Get-NetUDPEndpoint -LocalPort 2373 netstat -ano | findstr :2373
From another machine
nmap -p 2373 -sV <host> nc -zv <host> 2373
Block it in the firewall
sudo ufw deny 2373/tcp # Linux (ufw) New-NetFirewallRule -DisplayName "Block 2373" -Direction Inbound -LocalPort 2373 -Protocol TCP -Action Block # Windows
What is port 2373 used for?
Port 2373 is assigned by IANA to remographlm (Remograph License Manager).
Is port 2373 TCP or UDP?
Port 2373 is registered for TCP.
Is it safe to open port 2373?
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 2373 is open?
On Linux run "ss -ltnup 'sport = :2373'", on macOS "lsof -nP -i :2373", and on Windows "netstat -ano | findstr :2373" to see the local process. From another machine, "nmap -p 2373 <host>" shows whether it is reachable.
Other other services ports
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