Port 35006 (rt-helper)

IANA assigns port 35006 to rt-helper: ReadyTech Helper Service.

Registered (user) port, 1024-49151 TCP

IANA assignment

Service nameProtoDescriptionAssigneeReference

rt-helper TCP ReadyTech Helper Service ReadyTech Corporation -

Registry dates for this port: registered 2013-09-13.

Linux: is anything listening on TCP 35006?

sudo ss -tlnp 'sport = :35006'

Linux / macOS: which process owns the port

sudo lsof -nP -i :35006

Older Linux / BSD (net-tools)

sudo netstat -tlnp | grep ':35006 '

Windows (Command Prompt)

netstat -ano | findstr :35006

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 35006 -State Listen | Select LocalAddress,OwningProcess

From another machine

nc -vz -w 5 HOST 35006

From Windows

Test-NetConnection HOST -Port 35006

ufw

sudo ufw deny 35006/tcp

iptables

sudo iptables -A INPUT -p tcp --dport 35006 -j DROP

nftables

sudo nft add rule inet filter input tcp dport 35006 drop

Windows Firewall

New-NetFirewallRule -DisplayName 'Block TCP 35006' -Direction Inbound -Protocol TCP -LocalPort 35006 -Action Block

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Assignment data: IANA port number registry (public domain), retrieved 2026-11-10.