Port 6505 (badm-priv, badm_priv)

IANA assigns port 6505 to badm-priv, badm_priv: BoKS Admin Private Port IANA assigned this well-formed service name as a replacement for "badm_priv"..

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference

badm-priv TCP BoKS Admin Private Port IANA assigned this well-formed service name as a replacement for "badm_priv". Magnus Nystrom -

badm_priv TCP BoKS Admin Private Port
This entry is an alias to "badm-priv". This entry is now historic, not usable for use with many common service discovery mechanisms. Magnus Nystrom -

badm-priv UDP BoKS Admin Private Port IANA assigned this well-formed service name as a replacement for "badm_priv". Magnus Nystrom -

badm_priv UDP BoKS Admin Private Port
This entry is an alias to "badm-priv". This entry is now historic, not usable for use with many common service discovery mechanisms. Magnus Nystrom -

Check what is listening on port 6505

Linux: is anything listening on TCP 6505?

sudo ss -tlnp 'sport = :6505'

Linux: UDP 6505

sudo ss -ulnp 'sport = :6505'

Linux / macOS: which process owns the port

sudo lsof -nP -i :6505

Older Linux / BSD (net-tools)

sudo netstat -tlnp | grep ':6505 '

Windows (Command Prompt)

netstat -ano | findstr :6505

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 6505 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine

nc -vz -w 5 HOST 6505

From Windows

Test-NetConnection HOST -Port 6505

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

nc -vzu -w 5 HOST 6505

Block port 6505 in the firewall

ufw

sudo ufw deny 6505/tcp

iptables

sudo iptables -A INPUT -p tcp --dport 6505 -j DROP

nftables

sudo nft add rule inet filter input tcp dport 6505 drop

Windows Firewall

New-NetFirewallRule -DisplayName 'Block TCP 6505' -Direction Inbound -Protocol TCP -LocalPort 6505 -Action Block

ufw

sudo ufw deny 6505/udp