Port 6629 (nexgen-aux)

IANA assigns port 6629 to nexgen-aux: Secondary, (non ANDI) multi-protocol multi-function interface to the Allied ANDI-based family of forecourt controllers.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference

nexgen-aux TCP Secondary, (non ANDI) multi-protocol multi-function interface to the Allied ANDI-based family of forecourt controllers Allied Electronics -

nexgen-aux UDP Secondary, (non ANDI) multi-protocol multi-function interface to the Allied ANDI-based family of forecourt controllers Allied Electronics -

Registry dates for this port: registered 2016-11-29.

Check what is listening on port 6629

Linux: is anything listening on TCP 6629?

sudo ss -tlnp 'sport = :6629'

Linux: UDP 6629

sudo ss -ulnp 'sport = :6629'

Linux / macOS: which process owns the port

sudo lsof -nP -i :6629

Older Linux / BSD (net-tools)

sudo netstat -tlnp | grep ':6629 '

Windows (Command Prompt)

netstat -ano | findstr :6629

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 6629 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine

nc -vz -w 5 HOST 6629

From Windows

Test-NetConnection HOST -Port 6629

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

nc -vzu -w 5 HOST 6629

Block port 6629 in the firewall

ufw

sudo ufw deny 6629/tcp

iptables

sudo iptables -A INPUT -p tcp --dport 6629 -j DROP

nftables

sudo nft add rule inet filter input tcp dport 6629 drop

Windows Firewall

New-NetFirewallRule -DisplayName 'Block TCP 6629' -Direction Inbound -Protocol TCP -LocalPort 6629 -Action Block

ufw

sudo ufw deny 6629/udp