apache

Learn to use .htaccess for blocking Russian IP addresses on educational sites. Implement GeoIP blocking, IP deny lists, custom 403 messages like 'This material/link is not available in the Russian Federation', and server-side link hiding for compliance.

Troubleshoot and fix Debian 12 WiFi dropping idle connections causing SSH disconnects and Apache unreachability. Disable wifi power save, configure NetworkManager, add SSH keepalives for reliable home server on WiFi.