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Port 2665 (patrol-mq-nm)

IANA assigns port 2665 to patrol-mq-nm: Patrol for MQ NM.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
patrol-mq-nm TCP Patrol for MQ NM Portnoy Boxman -
patrol-mq-nm UDP Patrol for MQ NM Portnoy Boxman -

Check what is listening on port 2665

Linux: is anything listening on TCP 2665?
sudo ss -tlnp 'sport = :2665'
Linux: UDP 2665
sudo ss -ulnp 'sport = :2665'
Linux / macOS: which process owns the port
sudo lsof -nP -i :2665
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':2665 '
Windows (Command Prompt)
netstat -ano | findstr :2665
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 2665 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 2665
From Windows
Test-NetConnection HOST -Port 2665
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 2665

Block port 2665 in the firewall

ufw
sudo ufw deny 2665/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 2665 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 2665 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 2665' -Direction Inbound -Protocol TCP -LocalPort 2665 -Action Block
ufw
sudo ufw deny 2665/udp
iptables
sudo iptables -A INPUT -p udp --dport 2665 -j DROP
nftables
sudo nft add rule inet filter input udp dport 2665 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 2665' -Direction Inbound -Protocol UDP -LocalPort 2665 -Action Block

Related ports

2663bintec-tapi2664patrol-mq-gm2666extensis2667alarm-clock-s

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