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Port 5163 (sbackup)

IANA assigns port 5163 to sbackup: Shadow Backup.

Registered (user) port, 1024-49151 TCP

IANA assignment

Service nameProtoDescriptionAssigneeReference
sbackup TCP Shadow Backup Glenn Allen -

Registry dates for this port: registered 2009-08-05.

Check what is listening on port 5163

Linux: is anything listening on TCP 5163?
sudo ss -tlnp 'sport = :5163'
Linux / macOS: which process owns the port
sudo lsof -nP -i :5163
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':5163 '
Windows (Command Prompt)
netstat -ano | findstr :5163
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 5163 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 5163
From Windows
Test-NetConnection HOST -Port 5163

Block port 5163 in the firewall

ufw
sudo ufw deny 5163/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 5163 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 5163 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 5163' -Direction Inbound -Protocol TCP -LocalPort 5163 -Action Block

Related ports

5161snmpssh5162snmpssh-trap5164vpa, vpa-disc5165ife-icorp, ife_icorp

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