HTTPfy

Port 3691 (magaya-network)

IANA assigns port 3691 to magaya-network: Magaya Network Port.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
magaya-network TCP Magaya Network Port Jesus David Rodrigue -
magaya-network UDP Magaya Network Port Jesus David Rodrigue -

Registry dates for this port: registered 2003-02.

Check what is listening on port 3691

Linux: is anything listening on TCP 3691?
sudo ss -tlnp 'sport = :3691'
Linux: UDP 3691
sudo ss -ulnp 'sport = :3691'
Linux / macOS: which process owns the port
sudo lsof -nP -i :3691
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':3691 '
Windows (Command Prompt)
netstat -ano | findstr :3691
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 3691 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 3691
From Windows
Test-NetConnection HOST -Port 3691
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 3691

Block port 3691 in the firewall

ufw
sudo ufw deny 3691/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 3691 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 3691 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 3691' -Direction Inbound -Protocol TCP -LocalPort 3691 -Action Block
ufw
sudo ufw deny 3691/udp
iptables
sudo iptables -A INPUT -p udp --dport 3691 -j DROP
nftables
sudo nft add rule inet filter input udp dport 3691 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 3691' -Direction Inbound -Protocol UDP -LocalPort 3691 -Action Block

Related ports

3689daap3690Subversion (svnserve)3692intelsync3693easl

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