HTTPfy

Port 1585 (intv)

IANA assigns port 1585 to intv.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
intv TCP intv Dermot Tynand -
intv UDP intv Dermot Tynand -

Check what is listening on port 1585

Linux: is anything listening on TCP 1585?
sudo ss -tlnp 'sport = :1585'
Linux: UDP 1585
sudo ss -ulnp 'sport = :1585'
Linux / macOS: which process owns the port
sudo lsof -nP -i :1585
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':1585 '
Windows (Command Prompt)
netstat -ano | findstr :1585
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 1585 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 1585
From Windows
Test-NetConnection HOST -Port 1585
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 1585

Block port 1585 in the firewall

ufw
sudo ufw deny 1585/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 1585 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 1585 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 1585' -Direction Inbound -Protocol TCP -LocalPort 1585 -Action Block
ufw
sudo ufw deny 1585/udp
iptables
sudo iptables -A INPUT -p udp --dport 1585 -j DROP
nftables
sudo nft add rule inet filter input udp dport 1585 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 1585' -Direction Inbound -Protocol UDP -LocalPort 1585 -Action Block

Related ports

1583simbaexpress1584tn-tl-fd21586ibm-abtact1587pra-elmd, pra_elmd

All port numbers · Open port checker
Assignment data: IANA port number registry (public domain), retrieved 2026-11-10.