HTTPfy

Port 4552 (menandmice-mon)

IANA assigns port 4552 to menandmice-mon: Men and Mice Monitoring.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
menandmice-mon TCP Men and Mice Monitoring Carsten Strotmann -
menandmice-mon UDP Men and Mice Monitoring Carsten Strotmann -

Registry dates for this port: registered 2009-05-20.

Check what is listening on port 4552

Linux: is anything listening on TCP 4552?
sudo ss -tlnp 'sport = :4552'
Linux: UDP 4552
sudo ss -ulnp 'sport = :4552'
Linux / macOS: which process owns the port
sudo lsof -nP -i :4552
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':4552 '
Windows (Command Prompt)
netstat -ano | findstr :4552
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 4552 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 4552
From Windows
Test-NetConnection HOST -Port 4552
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 4552

Block port 4552 in the firewall

ufw
sudo ufw deny 4552/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 4552 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 4552 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 4552' -Direction Inbound -Protocol TCP -LocalPort 4552 -Action Block
ufw
sudo ufw deny 4552/udp
iptables
sudo iptables -A INPUT -p udp --dport 4552 -j DROP
nftables
sudo nft add rule inet filter input udp dport 4552 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 4552' -Direction Inbound -Protocol UDP -LocalPort 4552 -Action Block

Related ports

4550gds-adppiw-db4551ieee-mih4553icshostsvc4554msfrs

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