HTTPfy

Port 2575 (hl7)

IANA assigns port 2575 to hl7: HL7.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
hl7 TCP HL7 Tim Jacobs -
hl7 UDP HL7 Tim Jacobs -

Check what is listening on port 2575

Linux: is anything listening on TCP 2575?
sudo ss -tlnp 'sport = :2575'
Linux: UDP 2575
sudo ss -ulnp 'sport = :2575'
Linux / macOS: which process owns the port
sudo lsof -nP -i :2575
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':2575 '
Windows (Command Prompt)
netstat -ano | findstr :2575
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 2575 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 2575
From Windows
Test-NetConnection HOST -Port 2575
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 2575

Block port 2575 in the firewall

ufw
sudo ufw deny 2575/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 2575 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 2575 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 2575' -Direction Inbound -Protocol TCP -LocalPort 2575 -Action Block
ufw
sudo ufw deny 2575/udp
iptables
sudo iptables -A INPUT -p udp --dport 2575 -j DROP
nftables
sudo nft add rule inet filter input udp dport 2575 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 2575' -Direction Inbound -Protocol UDP -LocalPort 2575 -Action Block

Related ports

2573trustestablish2574blockade-bpsp2576tclprodebugger2577scipticslsrvr

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