Port 1454 (interhdl-elmd, interhdl_elmd)

IANA assigns port 1454 to interhdl-elmd, interhdl_elmd: interHDL License Manager IANA assigned this well-formed service name as a replacement for "interhdl_elmd"..

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference

interhdl-elmd TCP interHDL License Manager IANA assigned this well-formed service name as a replacement for "interhdl_elmd". Eli Sternheim -

interhdl_elmd TCP interHDL License Manager
This entry is an alias to "interhdl-elmd". This entry is now historic, not usable for use with many common service discovery mechanisms. Eli Sternheim -

interhdl-elmd UDP interHDL License Manager IANA assigned this well-formed service name as a replacement for "interhdl_elmd". Eli Sternheim -

interhdl_elmd UDP interHDL License Manager
This entry is an alias to "interhdl-elmd". This entry is now historic, not usable for use with many common service discovery mechanisms. Eli Sternheim -

Check what is listening on port 1454

Linux: is anything listening on TCP 1454?

sudo ss -tlnp 'sport = :1454'

Linux: UDP 1454

sudo ss -ulnp 'sport = :1454'

Linux / macOS: which process owns the port

sudo lsof -nP -i :1454

Older Linux / BSD (net-tools)

sudo netstat -tlnp | grep ':1454 '

Windows (Command Prompt)

netstat -ano | findstr :1454

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 1454 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine

nc -vz -w 5 HOST 1454

From Windows

Test-NetConnection HOST -Port 1454

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

nc -vzu -w 5 HOST 1454

Block port 1454 in the firewall

ufw

sudo ufw deny 1454/tcp

iptables

sudo iptables -A INPUT -p tcp --dport 1454 -j DROP

nftables

sudo nft add rule inet filter input tcp dport 1454 drop

Windows Firewall

New-NetFirewallRule -DisplayName 'Block TCP 1454' -Direction Inbound -Protocol TCP -LocalPort 1454 -Action Block

ufw

sudo ufw deny 1454/udp