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Port 1195 (rsf-1)

IANA assigns port 1195 to rsf-1: RSF-1 clustering.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
rsf-1 TCP RSF-1 clustering Dave Hines -
rsf-1 UDP RSF-1 clustering Dave Hines -

Registry dates for this port: registered 2004-11.

Check what is listening on port 1195

Linux: is anything listening on TCP 1195?
sudo ss -tlnp 'sport = :1195'
Linux: UDP 1195
sudo ss -ulnp 'sport = :1195'
Linux / macOS: which process owns the port
sudo lsof -nP -i :1195
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':1195 '
Windows (Command Prompt)
netstat -ano | findstr :1195
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 1195 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 1195
From Windows
Test-NetConnection HOST -Port 1195
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 1195

Block port 1195 in the firewall

ufw
sudo ufw deny 1195/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 1195 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 1195 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 1195' -Direction Inbound -Protocol TCP -LocalPort 1195 -Action Block
ufw
sudo ufw deny 1195/udp
iptables
sudo iptables -A INPUT -p udp --dport 1195 -j DROP
nftables
sudo nft add rule inet filter input udp dport 1195 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 1195' -Direction Inbound -Protocol UDP -LocalPort 1195 -Action Block

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Assignment data: IANA port number registry (public domain), retrieved 2026-11-10.