Hi, extended quote for the benefit of debian-edu: On Sonntag, 6. Februar 2011, Josh Triplett wrote: > The question asking for an HTTP proxy could instead auto-detect the need > for a proxy by trying to fetch a fixed URI (networkcheck.debian.org?) > and only asking for a proxy if that fails to return the expected content > of that URI. cjwatson suggested that due to the need for timeouts (in > case of firewalls that drop packets rathe than rejecting them), the > detection might need to start asynchronously earlier in the installer, > but even doing it synchronously (and telling the user they can cancel if > they know they need a proxy) seems like an improvement. debian-edu-config does something related with a dhclient-exit-hook, receiving the proxy setting either from a wpad-url DHCP option or from http://wpad/wpad.dat. see these files in the debian-edu-config package: ./etc/dhcp/dhclient-exit-hooks.d/wpad-proxy-update ./share/debian-edu-config/tools/wpad-extract ./share/debian-edu-config/tools/update-proxy-from-wpad cheers, Holger
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