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Port 8074 (gadugadu)

IANA assigns port 8074 to gadugadu: Gadu-Gadu.

Registered (user) port, 1024-49151 TCPUDP

IANA assignment

Service nameProtoDescriptionAssigneeReference
gadugadu TCP Gadu-Gadu Marcin Gozdalik -
gadugadu UDP Gadu-Gadu Marcin Gozdalik -

Registry dates for this port: registered 2006-05.

Check what is listening on port 8074

Linux: is anything listening on TCP 8074?
sudo ss -tlnp 'sport = :8074'
Linux: UDP 8074
sudo ss -ulnp 'sport = :8074'
Linux / macOS: which process owns the port
sudo lsof -nP -i :8074
Older Linux / BSD (net-tools)
sudo netstat -tlnp | grep ':8074 '
Windows (Command Prompt)
netstat -ano | findstr :8074
Windows (PowerShell)
Get-NetTCPConnection -LocalPort 8074 -State Listen | Select LocalAddress,OwningProcess

Test it from outside

From another machine
nc -vz -w 5 HOST 8074
From Windows
Test-NetConnection HOST -Port 8074
UDP probe (no reply does not prove it is closed)
nc -vzu -w 5 HOST 8074

Block port 8074 in the firewall

ufw
sudo ufw deny 8074/tcp
iptables
sudo iptables -A INPUT -p tcp --dport 8074 -j DROP
nftables
sudo nft add rule inet filter input tcp dport 8074 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block TCP 8074' -Direction Inbound -Protocol TCP -LocalPort 8074 -Action Block
ufw
sudo ufw deny 8074/udp
iptables
sudo iptables -A INPUT -p udp --dport 8074 -j DROP
nftables
sudo nft add rule inet filter input udp dport 8074 drop
Windows Firewall
New-NetFirewallRule -DisplayName 'Block UDP 8074' -Direction Inbound -Protocol UDP -LocalPort 8074 -Action Block

Related ports

8067infi-async8070ucs-isc8080HTTP alternate8081HTTP alternate (8081)

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