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Port 2632 (irdg-post)

IANA assigns port 2632 to irdg-post: IRdg Post.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
irdg-post TCP IRdg Post IRdg -
irdg-post UDP IRdg Post IRdg -

Check what is listening on port 2632

Linux: is anything listening on TCP 2632?
sudo ss -tlnp 'sport = :2632'
Linux: UDP 2632
sudo ss -ulnp 'sport = :2632'
Linux / macOS: which process owns the port
sudo lsof -nP -i :2632
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':2632 '
Windows (Command Prompt)
netstat -ano | findstr :2632
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 2632 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 2632
From Windows
Test-NetConnection HOST -Port 2632
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 2632

Block port 2632 in the firewall

ufw
sudo ufw deny 2632/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 2632 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 2632 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 2632' -Direction Inbound -Protocol TCP -LocalPort 2632 -Action Block
ufw
sudo ufw deny 2632/udp
iptables
sudo iptables -A INPUT -p udp --dport 2632 -j DROP
nftables
sudo nft add rule inet filter input udp dport 2632 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 2632' -Direction Inbound -Protocol UDP -LocalPort 2632 -Action Block

Related ports

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