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Port 20013 (ss-idi)

IANA assigns port 20013 to ss-idi: Samsung Interdevice Interaction.

Registered (user) port, 1024-49151 TCP

IANA assignment

Service nameProtoDescriptionAssigneeReference
ss-idi TCP Samsung Interdevice Interaction Hong Jungkih -

Check what is listening on port 20013

Linux: is anything listening on TCP 20013?
sudo ss -tlnp 'sport = :20013'
Linux / macOS: which process owns the port
sudo lsof -nP -i :20013
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':20013 '
Windows (Command Prompt)
netstat -ano | findstr :20013
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 20013 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 20013
From Windows
Test-NetConnection HOST -Port 20013

Block port 20013 in the firewall

ufw
sudo ufw deny 20013/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 20013 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 20013 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 20013' -Direction Inbound -Protocol TCP -LocalPort 20013 -Action Block

Related ports

20005openwebnet20012ss-idi-disc20014opendeploy20034nburn-id, nburn_id

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