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Port 35005 (rt-labtracker)

IANA assigns port 35005 to rt-labtracker: ReadyTech LabTracker.

Registered (user) port, 1024-49151 TCP

IANA assignment

Service nameProtoDescriptionAssigneeReference
rt-labtracker TCP ReadyTech LabTracker ReadyTech Corporation -

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

Check what is listening on port 35005

Linux: is anything listening on TCP 35005?
sudo ss -tlnp 'sport = :35005'
Linux / macOS: which process owns the port
sudo lsof -nP -i :35005
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':35005 '
Windows (Command Prompt)
netstat -ano | findstr :35005
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 35005 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 35005
From Windows
Test-NetConnection HOST -Port 35005

Block port 35005 in the firewall

ufw
sudo ufw deny 35005/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 35005 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 35005 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 35005' -Direction Inbound -Protocol TCP -LocalPort 35005 -Action Block

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35003rt-devicemapper35004rt-classmanager35006rt-helper35100axio-disc

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