Monthly Archives: September 2015

Tool tip: “vbetool” runs real-mode video BIOS code to alter hardware state

This is so damn useful to turn on and off remote displays through SSH, for wall-mounted information screens and similar. Available in your friendly neighbourhood Linux distribution. VBETOOL(1) User Commands VBETOOL(1) NAME vbetool – run real-mode video BIOS code to alter hardware state SYNOPSIS vbetool [[vbestate save|restore]|[vbemode set|get]|[vgamode]|[dpms on|off|standby|suspend|reduced]|[post [romfile]]|[vgastate on|off]|[vbefp pan‐ elid|panelsize|getbrightness|setbrightness|invert]] DESCRIPTION vbetool […]

Solution: Using ProxyPass from http to https in apache2 causes AH02032 SNI error

I got this error message on the when forwarding an URL from an extrernal HTTP server to an internal HTTPS server: AH02032: Hostname provided via SNI and hostname provided via HTTP are different The problem turned out to be that the internal server was trusting the external one’s X-Forwarded- headers, a feature […]