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Port 32811 (retp)

IANA assigns port 32811 to retp: Real Estate Transport Protocol.

Registered (user) port, 1024-49151 TCP

IANA assignment

Service nameProtoDescriptionAssigneeReference
retp TCP Real Estate Transport Protocol Corey Leong -

Registry dates for this port: registered 2010-10-11.

Check what is listening on port 32811

Linux: is anything listening on TCP 32811?
sudo ss -tlnp 'sport = :32811'
Linux / macOS: which process owns the port
sudo lsof -nP -i :32811
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':32811 '
Windows (Command Prompt)
netstat -ano | findstr :32811
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 32811 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 32811
From Windows
Test-NetConnection HOST -Port 32811

Block port 32811 in the firewall

ufw
sudo ufw deny 32811/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 32811 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 32811 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 32811' -Direction Inbound -Protocol TCP -LocalPort 32811 -Action Block

Related ports

32777filenet-obrok32801mlsn32896idmgratm33000wg-endpt-comms

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