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Port 3379 (socorfs)

IANA assigns port 3379 to socorfs: SOCORFS.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
socorfs TCP SOCORFS Hugo Charbonneau -
socorfs UDP SOCORFS Hugo Charbonneau -

Check what is listening on port 3379

Linux: is anything listening on TCP 3379?
sudo ss -tlnp 'sport = :3379'
Linux: UDP 3379
sudo ss -ulnp 'sport = :3379'
Linux / macOS: which process owns the port
sudo lsof -nP -i :3379
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':3379 '
Windows (Command Prompt)
netstat -ano | findstr :3379
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 3379 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 3379
From Windows
Test-NetConnection HOST -Port 3379
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 3379

Block port 3379 in the firewall

ufw
sudo ufw deny 3379/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 3379 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 3379 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 3379' -Direction Inbound -Protocol TCP -LocalPort 3379 -Action Block
ufw
sudo ufw deny 3379/udp
iptables
sudo iptables -A INPUT -p udp --dport 3379 -j DROP
nftables
sudo nft add rule inet filter input udp dport 3379 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 3379' -Direction Inbound -Protocol UDP -LocalPort 3379 -Action Block

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