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Port 3412 (xmlblaster)

IANA assigns port 3412 to xmlblaster: xmlBlaster.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
xmlblaster TCP xmlBlaster Marcel Ruff -
xmlblaster UDP xmlBlaster Marcel Ruff -

Registry dates for this port: registered 2002-02.

Check what is listening on port 3412

Linux: is anything listening on TCP 3412?
sudo ss -tlnp 'sport = :3412'
Linux: UDP 3412
sudo ss -ulnp 'sport = :3412'
Linux / macOS: which process owns the port
sudo lsof -nP -i :3412
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':3412 '
Windows (Command Prompt)
netstat -ano | findstr :3412
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 3412 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 3412
From Windows
Test-NetConnection HOST -Port 3412
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 3412

Block port 3412 in the firewall

ufw
sudo ufw deny 3412/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 3412 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 3412 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 3412' -Direction Inbound -Protocol TCP -LocalPort 3412 -Action Block
ufw
sudo ufw deny 3412/udp
iptables
sudo iptables -A INPUT -p udp --dport 3412 -j DROP
nftables
sudo nft add rule inet filter input udp dport 3412 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 3412' -Direction Inbound -Protocol UDP -LocalPort 3412 -Action Block

Related ports

3410networklenss3411biolink-auth3413svnet3414wip-port

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