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Port 4164 (silverpeakcomm)

IANA assigns port 4164 to silverpeakcomm: Silver Peak Communication Protocol.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
silverpeakcomm TCP Silver Peak Communication Protocol Damon Ennis -
silverpeakcomm UDP Silver Peak Communication Protocol Damon Ennis -

Registry dates for this port: registered 2007-03.

Check what is listening on port 4164

Linux: is anything listening on TCP 4164?
sudo ss -tlnp 'sport = :4164'
Linux: UDP 4164
sudo ss -ulnp 'sport = :4164'
Linux / macOS: which process owns the port
sudo lsof -nP -i :4164
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':4164 '
Windows (Command Prompt)
netstat -ano | findstr :4164
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 4164 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 4164
From Windows
Test-NetConnection HOST -Port 4164
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 4164

Block port 4164 in the firewall

ufw
sudo ufw deny 4164/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 4164 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 4164 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 4164' -Direction Inbound -Protocol TCP -LocalPort 4164 -Action Block
ufw
sudo ufw deny 4164/udp
iptables
sudo iptables -A INPUT -p udp --dport 4164 -j DROP
nftables
sudo nft add rule inet filter input udp dport 4164 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 4164' -Direction Inbound -Protocol UDP -LocalPort 4164 -Action Block

Related ports

4162omstopology4163silverpeakpeer4165altcp4166joost

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