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Port 3190 (csvr-proxy)

IANA assigns port 3190 to csvr-proxy: ConServR Proxy.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
csvr-proxy TCP ConServR Proxy - -
csvr-proxy UDP ConServR Proxy - -

Check what is listening on port 3190

Linux: is anything listening on TCP 3190?
sudo ss -tlnp 'sport = :3190'
Linux: UDP 3190
sudo ss -ulnp 'sport = :3190'
Linux / macOS: which process owns the port
sudo lsof -nP -i :3190
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':3190 '
Windows (Command Prompt)
netstat -ano | findstr :3190
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 3190 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 3190
From Windows
Test-NetConnection HOST -Port 3190
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 3190

Block port 3190 in the firewall

ufw
sudo ufw deny 3190/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 3190 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 3190 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 3190' -Direction Inbound -Protocol TCP -LocalPort 3190 -Action Block
ufw
sudo ufw deny 3190/udp
iptables
sudo iptables -A INPUT -p udp --dport 3190 -j DROP
nftables
sudo nft add rule inet filter input udp dport 3190 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 3190' -Direction Inbound -Protocol UDP -LocalPort 3190 -Action Block

Related ports

3188brcm-comm-port3189pcle-infex3191csvr-sslproxy3192firemonrcc

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