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Internet Related/Filtering/Firewall Thread, WPAD file in Technical; Looking for some help... We have a smoothwall UTM 1000 box and we are currently using the .pac file auto ...
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    WPAD file

    Looking for some help...

    We have a smoothwall UTM 1000 box and we are currently using the .pac file auto created by this.

    I am looking to use a WPAD file so that I can deploy the proxy settings via DNS and DHCP to BYOD clients as this is causing a headache at the moment to do.

    How do you create a .wpad file? Is it as simple as renaming the .pac file to a .wpad? If not how can I create a .wpad that reflects the .pac information.

    I have a webserver that I can host the .wpad file on.

  2. #2
    free780's Avatar
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    I'm currently looking at this but you have to expose a webserver. You also have the issue of android not supporting proxy auth for all apps.

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    I have a web server that can host the wpad file.

    Even with BYOD we only have a very very small percentage of android users...so this wouldn't cause me too much of a headache

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    IrritableTech's Avatar
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    Yes, a WPAD file is a pac file. Rename the extension and it's good to go.

    You may have to adjust the MIME types your webserver will serve though.

    Unfortunately as I said in another thread yesterday, WPAD isn't a silver bullet ( BYOD with Ruckus wireless ). We found it only worked on windows machines and those windows machines that had IE setting 'Automatically detect settings' set. It is on usually by default - but sometimes people have turned it off for one reason or another.

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    We use a symbolic link between the pac file and the wpad.dat file - so they are the same file.
    You also need to register wpad in your DNS because browsers look for http://wpad/wpad.dat

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    sparkeh's Avatar
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    Not sure how much of this already know but here goes:

    • Create a website to serve the proxy file.
    • Configure the web server to serve the WPAD file with a MIME type of "application/x-ns-proxy-autoconfig".
    • Create a file called wpad.dat, contents will be the same as your .pac file.
    • Put that file at the root of the wpad website you created.
    • Configure option 252 on the dhcp server with the string http://<FQDN of wpad website>/wpad.dat.
    • Create a dns entry so that 'wpad' resolves to the FQDN of the wpad website.
    • Set clients' proxy settings to 'Automatically detect settings'


    Think that's about it.

  7. Thanks to sparkeh from:

    IrritableTech (28th November 2013)

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    pleach85's Avatar
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    You might also need to update the dns global block list depending on the server(s) running your dns

    Removing WPAD from DNS block list

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