HTTPfy

Port 1175 (dossier)

IANA assigns port 1175 to dossier: Dossier Server.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
dossier TCP Dossier Server Rob Minerick -
dossier UDP Dossier Server Rob Minerick -

Registry dates for this port: registered 2004-11.

Check what is listening on port 1175

Linux: is anything listening on TCP 1175?
sudo ss -tlnp 'sport = :1175'
Linux: UDP 1175
sudo ss -ulnp 'sport = :1175'
Linux / macOS: which process owns the port
sudo lsof -nP -i :1175
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':1175 '
Windows (Command Prompt)
netstat -ano | findstr :1175
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 1175 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 1175
From Windows
Test-NetConnection HOST -Port 1175
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 1175

Block port 1175 in the firewall

ufw
sudo ufw deny 1175/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 1175 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 1175 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 1175' -Direction Inbound -Protocol TCP -LocalPort 1175 -Action Block
ufw
sudo ufw deny 1175/udp
iptables
sudo iptables -A INPUT -p udp --dport 1175 -j DROP
nftables
sudo nft add rule inet filter input udp dport 1175 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 1175' -Direction Inbound -Protocol UDP -LocalPort 1175 -Action Block

Related ports

1173d-cinema-rrp1174fnet-remote-ui1176indigo-server1177dkmessenger

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