I am trying to install Sophos AV for Linux on my machine from behind a proxy. The proxy performs a man-in-the-middle attack on the connection in order to filter it. I have installed the self-signed CA certificate in my local certificate store so that the system knows to trust it. However, it does not seem that Sophos knows to use the system certificate store, and instead keeps saying "Failed to get free credentials". When I try downloading behind a proxy that doesn't do the man-in-the-middle attack, the installation succeeds.
How do I configure Sophos to use the system certificate store during installation?
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