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Port 1329 (netdb-export)

IANA assigns port 1329 to netdb-export.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
netdb-export TCP netdb-export Konstantinos Kostis -
netdb-export UDP netdb-export Konstantinos Kostis -

Check what is listening on port 1329

Linux: is anything listening on TCP 1329?
sudo ss -tlnp 'sport = :1329'
Linux: UDP 1329
sudo ss -ulnp 'sport = :1329'
Linux / macOS: which process owns the port
sudo lsof -nP -i :1329
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':1329 '
Windows (Command Prompt)
netstat -ano | findstr :1329
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 1329 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 1329
From Windows
Test-NetConnection HOST -Port 1329
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 1329

Block port 1329 in the firewall

ufw
sudo ufw deny 1329/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 1329 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 1329 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 1329' -Direction Inbound -Protocol TCP -LocalPort 1329 -Action Block
ufw
sudo ufw deny 1329/udp
iptables
sudo iptables -A INPUT -p udp --dport 1329 -j DROP
nftables
sudo nft add rule inet filter input udp dport 1329 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 1329' -Direction Inbound -Protocol UDP -LocalPort 1329 -Action Block

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