Port 1493 (netmap-lm, netmap_lm)

IANA assigns port 1493 to netmap-lm, netmap_lm: netmap_lm IANA assigned this well-formed service name as a replacement for "netmap_lm"..

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference

netmap-lm TCP netmap_lm IANA assigned this well-formed service name as a replacement for "netmap_lm". Phillip Magson -

netmap_lm TCP netmap_lm
This entry is an alias to "netmap-lm". This entry is now historic, not usable for use with many common service discovery mechanisms. Phillip Magson -

netmap-lm UDP netmap_lm IANA assigned this well-formed service name as a replacement for "netmap_lm". Phillip Magson -

netmap_lm UDP netmap_lm
This entry is an alias to "netmap-lm". This entry is now historic, not usable for use with many common service discovery mechanisms. Phillip Magson -

Check what is listening on port 1493

Linux: is anything listening on TCP 1493?

sudo ss -tlnp 'sport = :1493'

Linux: UDP 1493

sudo ss -ulnp 'sport = :1493'

Linux / macOS: which process owns the port

sudo lsof -nP -i :1493

Older Linux / BSD (net-tools)

sudo netstat -tlnp | grep ':1493 '

Windows (Command Prompt)

netstat -ano | findstr :1493

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 1493 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine

nc -vz -w 5 HOST 1493

From Windows

Test-NetConnection HOST -Port 1493

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

nc -vzu -w 5 HOST 1493

Block port 1493 in the firewall

ufw

sudo ufw deny 1493/tcp

iptables

sudo iptables -A INPUT -p tcp --dport 1493 -j DROP

nftables

sudo nft add rule inet filter input tcp dport 1493 drop

Windows Firewall

New-NetFirewallRule -DisplayName 'Block TCP 1493' -Direction Inbound -Protocol TCP -LocalPort 1493 -Action Block

ufw

sudo ufw deny 1493/udp