How to enable SSI (Server Side Instruction)

• You need to activate the module mod_ssi berfor the module mod_compress!
• You need to set the variable in lighttpd.conf ssi.extension = (".html").
  • Here we say that every .html file can have <!--#include file="something"--> or other SSI instructions. The filetype extension of the included file is not relevant!
• Cheers to the 90s