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Port 3714 (delos-dms)

IANA assigns port 3714 to delos-dms: DELOS Direct Messaging.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
delos-dms TCP DELOS Direct Messaging Ekkehard Morgenstern -
delos-dms UDP DELOS Direct Messaging Ekkehard Morgenstern -

Registry dates for this port: registered 2003-03.

Check what is listening on port 3714

Linux: is anything listening on TCP 3714?
sudo ss -tlnp 'sport = :3714'
Linux: UDP 3714
sudo ss -ulnp 'sport = :3714'
Linux / macOS: which process owns the port
sudo lsof -nP -i :3714
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':3714 '
Windows (Command Prompt)
netstat -ano | findstr :3714
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 3714 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 3714
From Windows
Test-NetConnection HOST -Port 3714
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 3714

Block port 3714 in the firewall

ufw
sudo ufw deny 3714/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 3714 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 3714 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 3714' -Direction Inbound -Protocol TCP -LocalPort 3714 -Action Block
ufw
sudo ufw deny 3714/udp
iptables
sudo iptables -A INPUT -p udp --dport 3714 -j DROP
nftables
sudo nft add rule inet filter input udp dport 3714 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 3714' -Direction Inbound -Protocol UDP -LocalPort 3714 -Action Block

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3712sentinel-ent3713tftps3715anoto-rendezv3716wv-csp-sms-cir

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