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// Other services

Port 2350: Pharos Booking Server

Port 2350 is assigned by IANA to psbserver (Pharos Booking Server).

2350

How psbserver works

Other services
client:2350psbserverresponse client:2350psbserverresponse

The client sends a request to port 2350 and the psbserver 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 2350 dangerous?

We have no specific security note for port 2350. 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 2350

ServicePortTransportDescriptionReferenceUpdated
psbserver 2350 TCP, UDP Pharos Booking Server - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 2350, and is it reachable?

Linux

sudo ss -ltnup 'sport = :2350'      # process listening on 2350
sudo lsof -nP -i :2350

macOS

sudo lsof -nP -i :2350

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 2350 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 2350
netstat -ano | findstr :2350

From another machine

nmap -p 2350 -sV <host>
sudo nmap -sU -p 2350 <host>
nc -zv <host> 2350

Block it in the firewall

sudo ufw deny 2350/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 2350" -Direction Inbound -LocalPort 2350 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 2350 used for?

Port 2350 is assigned by IANA to psbserver (Pharos Booking Server).

Is port 2350 TCP or UDP?

Port 2350 is registered for TCP and UDP.

Is it safe to open port 2350?

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 2350 is open?

On Linux run "ss -ltnup 'sport = :2350'", on macOS "lsof -nP -i :2350", and on Windows "netstat -ano | findstr :2350" to see the local process. From another machine, "nmap -p 2350 <host>" shows whether it is reachable.

05 Related
:4444 Metasploit default / krb524 tcp · udp · high risk :31337 Back Orifice / elite tcp · udp · high risk :1 TCP Port Service Multiplexer tcp · udp :5 Remote Job Entry tcp · udp :9 Discard tcp · udp · sctp · dccp :11 Active Users tcp · udp :17 Quote of the Day tcp · udp :18 Message Send Protocol (historic) tcp · udp

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