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Port 9107 (astergatefax)

IANA assigns port 9107 to astergatefax: AstergateFax Control Service.

Registered (user) port, 1024-49151 TCP

IANA assignment

Service nameProtoDescriptionAssigneeReference
astergatefax TCP AstergateFax Control Service Gijs Middelkamp -

Registry dates for this port: registered 2010-02-03.

Check what is listening on port 9107

Linux: is anything listening on TCP 9107?
sudo ss -tlnp 'sport = :9107'
Linux / macOS: which process owns the port
sudo lsof -nP -i :9107
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':9107 '
Windows (Command Prompt)
netstat -ano | findstr :9107
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 9107 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 9107
From Windows
Test-NetConnection HOST -Port 9107

Block port 9107 in the firewall

ufw
sudo ufw deny 9107/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 9107 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 9107 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 9107' -Direction Inbound -Protocol TCP -LocalPort 9107 -Action Block

Related ports

9105xadmin9106astergate, astergate-disc9111hexxorecore9119mxit

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