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Port 2205 (jps)

IANA assigns port 2205 to jps: Java Presentation Server.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
jps TCP Java Presentation Server Leif Jakob -
jps UDP Java Presentation Server Leif Jakob -

Registry dates for this port: registered 2006-01.

Check what is listening on port 2205

Linux: is anything listening on TCP 2205?
sudo ss -tlnp 'sport = :2205'
Linux: UDP 2205
sudo ss -ulnp 'sport = :2205'
Linux / macOS: which process owns the port
sudo lsof -nP -i :2205
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':2205 '
Windows (Command Prompt)
netstat -ano | findstr :2205
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 2205 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 2205
From Windows
Test-NetConnection HOST -Port 2205
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 2205

Block port 2205 in the firewall

ufw
sudo ufw deny 2205/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 2205 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 2205 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 2205' -Direction Inbound -Protocol TCP -LocalPort 2205 -Action Block
ufw
sudo ufw deny 2205/udp
iptables
sudo iptables -A INPUT -p udp --dport 2205 -j DROP
nftables
sudo nft add rule inet filter input udp dport 2205 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 2205' -Direction Inbound -Protocol UDP -LocalPort 2205 -Action Block

Related ports

2203b2-runtime2204b2-license2206hpocbus2207hpssd

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