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Port 1186 (mysql-cluster)

IANA assigns port 1186 to mysql-cluster: MySQL Cluster Manager.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
mysql-cluster TCP MySQL Cluster Manager Arjen Lentz -
mysql-cluster UDP MySQL Cluster Manager Arjen Lentz -

Registry dates for this port: registered 2004-11.

Check what is listening on port 1186

Linux: is anything listening on TCP 1186?
sudo ss -tlnp 'sport = :1186'
Linux: UDP 1186
sudo ss -ulnp 'sport = :1186'
Linux / macOS: which process owns the port
sudo lsof -nP -i :1186
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':1186 '
Windows (Command Prompt)
netstat -ano | findstr :1186
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 1186 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 1186
From Windows
Test-NetConnection HOST -Port 1186
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 1186

Block port 1186 in the firewall

ufw
sudo ufw deny 1186/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 1186 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 1186 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 1186' -Direction Inbound -Protocol TCP -LocalPort 1186 -Action Block
ufw
sudo ufw deny 1186/udp
iptables
sudo iptables -A INPUT -p udp --dport 1186 -j DROP
nftables
sudo nft add rule inet filter input udp dport 1186 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 1186' -Direction Inbound -Protocol UDP -LocalPort 1186 -Action Block

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