HTTPfy

Port 44445 (acronis-backup)

IANA assigns port 44445 to acronis-backup: Acronis Backup Gateway service port.

Registered (user) port, 1024-49151 TCP

IANA assignment

Service nameProtoDescriptionAssigneeReference
acronis-backup TCP Acronis Backup Gateway service port Acronis -

Registry dates for this port: registered 2019-11-25.

Check what is listening on port 44445

Linux: is anything listening on TCP 44445?
sudo ss -tlnp 'sport = :44445'
Linux / macOS: which process owns the port
sudo lsof -nP -i :44445
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':44445 '
Windows (Command Prompt)
netstat -ano | findstr :44445
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 44445 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 44445
From Windows
Test-NetConnection HOST -Port 44445

Block port 44445 in the firewall

ufw
sudo ufw deny 44445/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 44445 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 44445 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 44445' -Direction Inbound -Protocol TCP -LocalPort 44445 -Action Block

Related ports

44323pmwebapi44444cognex-dataman44544domiq44553rbr-debug

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