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Port 2199 (onehome-help)

IANA assigns port 2199 to onehome-help: OneHome Service Port.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
onehome-help TCP OneHome Service Port Jim Herman -
onehome-help UDP OneHome Service Port Jim Herman -

Registry dates for this port: registered 2005-08.

Check what is listening on port 2199

Linux: is anything listening on TCP 2199?
sudo ss -tlnp 'sport = :2199'
Linux: UDP 2199
sudo ss -ulnp 'sport = :2199'
Linux / macOS: which process owns the port
sudo lsof -nP -i :2199
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':2199 '
Windows (Command Prompt)
netstat -ano | findstr :2199
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 2199 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 2199
From Windows
Test-NetConnection HOST -Port 2199
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 2199

Block port 2199 in the firewall

ufw
sudo ufw deny 2199/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 2199 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 2199 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 2199' -Direction Inbound -Protocol TCP -LocalPort 2199 -Action Block
ufw
sudo ufw deny 2199/udp
iptables
sudo iptables -A INPUT -p udp --dport 2199 -j DROP
nftables
sudo nft add rule inet filter input udp dport 2199 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 2199' -Direction Inbound -Protocol UDP -LocalPort 2199 -Action Block

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2197mnp-exchange2198onehome-remote2201ats2202imtc-map

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