Port 20034 (nburn-id, nburn_id)

IANA assigns port 20034 to nburn-id, nburn_id: NetBurner ID Port IANA assigned this well-formed service name as a replacement for "nburn_id"..

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference

nburn-id TCP NetBurner ID Port IANA assigned this well-formed service name as a replacement for "nburn_id". Paul Breed -

nburn_id TCP NetBurner ID Port
This entry is an alias to "nburn-id". This entry is now historic, not usable for use with many common service discovery mechanisms. Paul Breed -

nburn-id UDP NetBurner ID Port IANA assigned this well-formed service name as a replacement for "nburn_id". Paul Breed -

nburn_id UDP NetBurner ID Port
This entry is an alias to "nburn-id". This entry is now historic, not usable for use with many common service discovery mechanisms. Paul Breed -

Registry dates for this port: registered 2003-11.

Check what is listening on port 20034

Linux: is anything listening on TCP 20034?

sudo ss -tlnp 'sport = :20034'

Linux: UDP 20034

sudo ss -ulnp 'sport = :20034'

Linux / macOS: which process owns the port

sudo lsof -nP -i :20034

Older Linux / BSD (net-tools)

sudo netstat -tlnp | grep ':20034 '

Windows (Command Prompt)

netstat -ano | findstr :20034

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 20034 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine

nc -vz -w 5 HOST 20034

From Windows

Test-NetConnection HOST -Port 20034

UDP probe (no reply does not prove it is closed)

nc -vzu -w 5 HOST 20034

Block port 20034 in the firewall

ufw

sudo ufw deny 20034/tcp

iptables

sudo iptables -A INPUT -p tcp --dport 20034 -j DROP

nftables

sudo nft add rule inet filter input tcp dport 20034 drop

Windows Firewall

New-NetFirewallRule -DisplayName 'Block TCP 20034' -Direction Inbound -Protocol TCP -LocalPort 20034 -Action Block

ufw

sudo ufw deny 20034/udp