HTTPfy

Port 7887 (ubroker)

IANA assigns port 7887 to ubroker: Universal Broker.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
ubroker TCP Universal Broker Nathan Hammond -
ubroker UDP Universal Broker Nathan Hammond -

Registry dates for this port: registered 2005-10.

Check what is listening on port 7887

Linux: is anything listening on TCP 7887?
sudo ss -tlnp 'sport = :7887'
Linux: UDP 7887
sudo ss -ulnp 'sport = :7887'
Linux / macOS: which process owns the port
sudo lsof -nP -i :7887
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':7887 '
Windows (Command Prompt)
netstat -ano | findstr :7887
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 7887 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 7887
From Windows
Test-NetConnection HOST -Port 7887
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 7887

Block port 7887 in the firewall

ufw
sudo ufw deny 7887/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 7887 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 7887 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 7887' -Direction Inbound -Protocol TCP -LocalPort 7887 -Action Block
ufw
sudo ufw deny 7887/udp
iptables
sudo iptables -A INPUT -p udp --dport 7887 -j DROP
nftables
sudo nft add rule inet filter input udp dport 7887 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 7887' -Direction Inbound -Protocol UDP -LocalPort 7887 -Action Block

Related ports

7878owms7880pss7900mevent7901tnos-sp

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