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Port 192 (osu-nms)

IANA assigns port 192 to osu-nms: OSU Network Monitoring System.

Well-known (system) port, 0-1023 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
osu-nms TCP OSU Network Monitoring System Doug Karl -
osu-nms UDP OSU Network Monitoring System Doug Karl -

Check what is listening on port 192

Linux: is anything listening on TCP 192?
sudo ss -tlnp 'sport = :192'
Linux: UDP 192
sudo ss -ulnp 'sport = :192'
Linux / macOS: which process owns the port
sudo lsof -nP -i :192
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':192 '
Windows (Command Prompt)
netstat -ano | findstr :192
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 192 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 192
From Windows
Test-NetConnection HOST -Port 192
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 192

Block port 192 in the firewall

ufw
sudo ufw deny 192/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 192 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 192 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 192' -Direction Inbound -Protocol TCP -LocalPort 192 -Action Block
ufw
sudo ufw deny 192/udp
iptables
sudo iptables -A INPUT -p udp --dport 192 -j DROP
nftables
sudo nft add rule inet filter input udp dport 192 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 192' -Direction Inbound -Protocol UDP -LocalPort 192 -Action Block

Related ports

190gacp191prospero193srmp194IRC (IANA)

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