HTTPfy

Port 3692 (intelsync)

IANA assigns port 3692 to intelsync: Brimstone IntelSync.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
intelsync TCP Brimstone IntelSync Davey Taylor -
intelsync UDP Brimstone IntelSync Davey Taylor -

Registry dates for this port: registered 2003-02.

Check what is listening on port 3692

Linux: is anything listening on TCP 3692?
sudo ss -tlnp 'sport = :3692'
Linux: UDP 3692
sudo ss -ulnp 'sport = :3692'
Linux / macOS: which process owns the port
sudo lsof -nP -i :3692
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':3692 '
Windows (Command Prompt)
netstat -ano | findstr :3692
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 3692 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 3692
From Windows
Test-NetConnection HOST -Port 3692
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 3692

Block port 3692 in the firewall

ufw
sudo ufw deny 3692/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 3692 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 3692 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 3692' -Direction Inbound -Protocol TCP -LocalPort 3692 -Action Block
ufw
sudo ufw deny 3692/udp
iptables
sudo iptables -A INPUT -p udp --dport 3692 -j DROP
nftables
sudo nft add rule inet filter input udp dport 3692 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 3692' -Direction Inbound -Protocol UDP -LocalPort 3692 -Action Block

Related ports

3690Subversion (svnserve)3691magaya-network3693easl3695bmc-data-coll

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