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Port 4602 (mtsserver)

IANA assigns port 4602 to mtsserver: EAX MTS Server.

Registered (user) port, 1024-49151 TCP

IANA assignment

Service nameProtoDescriptionAssigneeReference
mtsserver TCP EAX MTS Server Pedro A Rodriguez -

Registry dates for this port: registered 2008-08-06.

Check what is listening on port 4602

Linux: is anything listening on TCP 4602?
sudo ss -tlnp 'sport = :4602'
Linux / macOS: which process owns the port
sudo lsof -nP -i :4602
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':4602 '
Windows (Command Prompt)
netstat -ano | findstr :4602
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 4602 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 4602
From Windows
Test-NetConnection HOST -Port 4602

Block port 4602 in the firewall

ufw
sudo ufw deny 4602/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 4602 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 4602 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 4602' -Direction Inbound -Protocol TCP -LocalPort 4602 -Action Block

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Assignment data: IANA port number registry (public domain), retrieved 2026-11-10.