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Port 14143 (icpps)

IANA assigns port 14143 to icpps: IceWall Cert Protocol over TLS.

Registered (user) port, 1024-49151 TCP

IANA assignment

Service nameProtoDescriptionAssigneeReference
icpps TCP IceWall Cert Protocol over TLS Kenta Kambara -

Registry dates for this port: registered 2016-05-24.

Check what is listening on port 14143

Linux: is anything listening on TCP 14143?
sudo ss -tlnp 'sport = :14143'
Linux / macOS: which process owns the port
sudo lsof -nP -i :14143
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':14143 '
Windows (Command Prompt)
netstat -ano | findstr :14143
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 14143 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 14143
From Windows
Test-NetConnection HOST -Port 14143

Block port 14143 in the firewall

ufw
sudo ufw deny 14143/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 14143 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 14143 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 14143' -Direction Inbound -Protocol TCP -LocalPort 14143 -Action Block

Related ports

14141vcs-app14142icpp14145gcm-app14149vrts-tdd

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