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Port 2589 (quartus-tcl)

IANA assigns port 2589 to quartus-tcl: quartus tcl.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
quartus-tcl TCP quartus tcl Subroto Datta -
quartus-tcl UDP quartus tcl Subroto Datta -

Check what is listening on port 2589

Linux: is anything listening on TCP 2589?
sudo ss -tlnp 'sport = :2589'
Linux: UDP 2589
sudo ss -ulnp 'sport = :2589'
Linux / macOS: which process owns the port
sudo lsof -nP -i :2589
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':2589 '
Windows (Command Prompt)
netstat -ano | findstr :2589
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 2589 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 2589
From Windows
Test-NetConnection HOST -Port 2589
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 2589

Block port 2589 in the firewall

ufw
sudo ufw deny 2589/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 2589 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 2589 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 2589' -Direction Inbound -Protocol TCP -LocalPort 2589 -Action Block
ufw
sudo ufw deny 2589/udp
iptables
sudo iptables -A INPUT -p udp --dport 2589 -j DROP
nftables
sudo nft add rule inet filter input udp dport 2589 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 2589' -Direction Inbound -Protocol UDP -LocalPort 2589 -Action Block

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