Guide★ Featured
Understand and resolve a G-Line
Read the exact network-ban reason, secure affected devices, and use the indicated review or delisting path.
A G-Line is a network-wide restriction. It may cover one address or a wider ISP range.
Read the complete message
The reason determines the next step. It may identify:
- Excessive connections
- Flooding or automated abuse
- A compromised device or drone
- An open proxy
- A DNS blocklist
- A required IDENT response
Visit the URL printed in the message. Undernet's G-Line guide explains common reasons, and glines.undernet.org handles supported review cases.
Before requesting review
- Stop automatic reconnects.
- Scan all devices sharing the public IP for malware.
- Close open proxies and unintended forwarded ports.
- Preserve the exact message, time, server, and public IP privately.
- Wait for short automatic restrictions to expire.
Some automated flooding restrictions are not manually removed, especially during their initial period. Do not repeatedly email unrelated teams; follow the destination named in the message.