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Port 8161 (ActiveMQ web console)

ActiveMQ admin web console (Jetty).

Registered (user) port, 1024-49151 TCP Message queues Do not expose to the internet

What port 8161 is used for

ActiveMQ admin web console (Jetty).

Security: should port 8161 be open?

Do not expose to the internet. Defaults to admin/admin; change it and restrict access.

IANA assignment

Service nameProtoDescriptionAssigneeReference
patrol-snmp TCP Patrol SNMP Portnoy Boxman -
patrol-snmp UDP Patrol SNMP Portnoy Boxman -

Check what is listening on port 8161

Linux: is anything listening on TCP 8161?
sudo ss -tlnp 'sport = :8161'
Linux / macOS: which process owns the port
sudo lsof -nP -i :8161
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':8161 '
Windows (Command Prompt)
netstat -ano | findstr :8161
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 8161 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 8161
From Windows
Test-NetConnection HOST -Port 8161

Block port 8161 in the firewall

ufw
sudo ufw deny 8161/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 8161 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 8161 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 8161' -Direction Inbound -Protocol TCP -LocalPort 8161 -Action Block

Related ports

61616Apache ActiveMQ OpenWire8153quantastor8160patrol8162lpar2rrd8181intermapper

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