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A HTTPS server I'm browsing uses an invalid certificate. I want my machine to ignore this error and think that the certificate is valid. How to do that?

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Disabling certificates is not a solution. You're leaving yourself open to expired certificates, an attacker trying to intercept communications and/or tampering with your internet connection. It is better to accept the invalid certificate only if you know and trust as to why this is happening. – kobaltz Jan 2 '12 at 20:13
@kobaltz I don't want to disable all certificate checking, just this one – Jader Dias Jan 2 '12 at 20:15
correct, see my answer below. – kobaltz Jan 2 '12 at 20:17
up vote 2 down vote accepted

It will depend on each browser. Your server has a certificate, but each browser will display that this certificate was generated by an unknown authority.

Personally, I run a private cloud which is accessible only within my network. I know that it communicates with a secure connection and that the certificate was self generated by the server. Knowing this, I know that my connection is still encrypted but is not authorized/verified with a known agent. I will always get these errors.

However, it is not a good idea to disable the error/warning as that is no different than removing your Check Engine light bulb. Hides the problem but does not solve your root issue.

Firefox: enter image description here

This part will allow you to add the exception for the certificate and not display this information again while keeping the connection secured.

enter image description here enter image description here

enter image description here

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I know this, I don't want to simply avoid this message. I want the machine to trust the invalid certificate. – Jader Dias Jan 2 '12 at 20:14
If you use Firefox, it will install the certificate as described above. – kobaltz Jan 2 '12 at 20:22

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