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Port 1179 (b2n)

IANA assigns port 1179 to b2n: Backup To Neighbor.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
b2n TCP Backup To Neighbor Thomas Fok -
b2n UDP Backup To Neighbor Thomas Fok -

Registry dates for this port: registered 2004-11.

Check what is listening on port 1179

Linux: is anything listening on TCP 1179?
sudo ss -tlnp 'sport = :1179'
Linux: UDP 1179
sudo ss -ulnp 'sport = :1179'
Linux / macOS: which process owns the port
sudo lsof -nP -i :1179
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':1179 '
Windows (Command Prompt)
netstat -ano | findstr :1179
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 1179 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 1179
From Windows
Test-NetConnection HOST -Port 1179
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 1179

Block port 1179 in the firewall

ufw
sudo ufw deny 1179/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 1179 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 1179 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 1179' -Direction Inbound -Protocol TCP -LocalPort 1179 -Action Block
ufw
sudo ufw deny 1179/udp
iptables
sudo iptables -A INPUT -p udp --dport 1179 -j DROP
nftables
sudo nft add rule inet filter input udp dport 1179 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 1179' -Direction Inbound -Protocol UDP -LocalPort 1179 -Action Block

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