noIPhost

This script automatically bans people joining a channel with non-resolving hosts. Per-channel toggle. Bans last a day by default. (To adjust, edit the script.)

To use this script:

Download it
Put the TCL file in your eggdrop's scripts directory
Add source scripts/noiphost.tcl to your eggdrop config file
Rehash the bot
Enable it on desired channels with .chanset #channel +noiphosts