Port 19790 (faircom-db)

IANA assigns port 19790 to faircom-db: FairCom Database.

Registered (user) port, 1024-49151 TCP

IANA assignment

Service nameProtoDescriptionAssigneeReference

faircom-db TCP FairCom Database FairCom Corporation -

Registry dates for this port: registered 2020-12-04.

Linux: is anything listening on TCP 19790?

sudo ss -tlnp 'sport = :19790'

Linux / macOS: which process owns the port

sudo lsof -nP -i :19790

Older Linux / BSD (net-tools)

sudo netstat -tlnp | grep ':19790 '

Windows (Command Prompt)

netstat -ano | findstr :19790

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 19790 -State Listen | Select LocalAddress,OwningProcess

From another machine

nc -vz -w 5 HOST 19790

From Windows

Test-NetConnection HOST -Port 19790

ufw

sudo ufw deny 19790/tcp

iptables

sudo iptables -A INPUT -p tcp --dport 19790 -j DROP

nftables

sudo nft add rule inet filter input tcp dport 19790 drop

Windows Firewall

New-NetFirewallRule -DisplayName 'Block TCP 19790' -Direction Inbound -Protocol TCP -LocalPort 19790 -Action Block

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