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Port 5195 (ampl-lic)

IANA assigns port 5195 to ampl-lic: The protocol is used by a license server and client programs to control use of program licenses that float to networked machines.

Registered (user) port, 1024-49151 TCP

IANA assignment

Service nameProtoDescriptionAssigneeReference
ampl-lic TCP The protocol is used by a license server and client programs to control use of program licenses that float to networked machines AMPL Optimization -

Registry dates for this port: registered 2012-05-25.

Check what is listening on port 5195

Linux: is anything listening on TCP 5195?
sudo ss -tlnp 'sport = :5195'
Linux / macOS: which process owns the port
sudo lsof -nP -i :5195
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':5195 '
Windows (Command Prompt)
netstat -ano | findstr :5195
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 5195 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 5195
From Windows
Test-NetConnection HOST -Port 5195

Block port 5195 in the firewall

ufw
sudo ufw deny 5195/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 5195 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 5195 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 5195' -Direction Inbound -Protocol TCP -LocalPort 5195 -Action Block

Related ports

5193aol-35194cpscomm5196ampl-tableproxy5197tunstall-lwp

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