HTTPfy

Port 2350 (psbserver)

IANA assigns port 2350 to psbserver: Pharos Booking Server.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
psbserver TCP Pharos Booking Server - -
psbserver UDP Pharos Booking Server - -

Check what is listening on port 2350

Linux: is anything listening on TCP 2350?
sudo ss -tlnp 'sport = :2350'
Linux: UDP 2350
sudo ss -ulnp 'sport = :2350'
Linux / macOS: which process owns the port
sudo lsof -nP -i :2350
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':2350 '
Windows (Command Prompt)
netstat -ano | findstr :2350
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 2350 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 2350
From Windows
Test-NetConnection HOST -Port 2350
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 2350

Block port 2350 in the firewall

ufw
sudo ufw deny 2350/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 2350 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 2350 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 2350' -Direction Inbound -Protocol TCP -LocalPort 2350 -Action Block
ufw
sudo ufw deny 2350/udp
iptables
sudo iptables -A INPUT -p udp --dport 2350 -j DROP
nftables
sudo nft add rule inet filter input udp dport 2350 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 2350' -Direction Inbound -Protocol UDP -LocalPort 2350 -Action Block

Related ports

2348redstorm-info, redstorm_info2349redstorm-diag, redstorm_diag2351psrserver2352pslserver

All port numbers · Open port checker
Assignment data: IANA port number registry (public domain), retrieved 2026-11-10.