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Port 10544 (MOS-soap-opt)

IANA assigns port 10544 to MOS-soap-opt: MOS SOAP Optional Port.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
MOS-soap-opt TCP MOS SOAP Optional Port Eric Thorniley -
MOS-soap-opt UDP MOS SOAP Optional Port Eric Thorniley -

Registry dates for this port: registered 2007-09-17.

Check what is listening on port 10544

Linux: is anything listening on TCP 10544?
sudo ss -tlnp 'sport = :10544'
Linux: UDP 10544
sudo ss -ulnp 'sport = :10544'
Linux / macOS: which process owns the port
sudo lsof -nP -i :10544
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':10544 '
Windows (Command Prompt)
netstat -ano | findstr :10544
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 10544 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 10544
From Windows
Test-NetConnection HOST -Port 10544
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 10544

Block port 10544 in the firewall

ufw
sudo ufw deny 10544/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 10544 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 10544 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 10544' -Direction Inbound -Protocol TCP -LocalPort 10544 -Action Block
ufw
sudo ufw deny 10544/udp
iptables
sudo iptables -A INPUT -p udp --dport 10544 -j DROP
nftables
sudo nft add rule inet filter input udp dport 10544 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 10544' -Direction Inbound -Protocol UDP -LocalPort 10544 -Action Block

Related ports

10542MOS-aux10543MOS-soap10548serverdocs10631printopia

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