I had to update the ‘self-signed‘ certificate on my VMware vCenter today, but when I went to browse to it, I got this.
Net:: ERR_CERT_AUTHORITY_INVALID
Well yes of course I don’t trust the CA that issued this certificate it’s a self-signed certificate! So HOW DO I TRUST IT?
Solution : Bypass Blocked Certificate
The answer I didn’t believe when I read it – because it sounds like an IT Department prank, but it works. Make sure you have clicked into the page somewhere, so it is the window that’s in focus and, type the following on your keyboard.
thisisunsafe
The website will open.
Note: If you are in an inPrivate browsing window, it will only persist in that session, but for normal browsing the site will be added to the “allowed” website list.
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Out of the box Exchange 2007 and 2010 comes with a “Self Signed” digital certificate. That’s OK for getting you up and running but your Outlook clients may start to see the error below.
Error:
Security Alert
Information you exchange with this site cannot be viewed or changed by others. However, there is a problem with the sites security certificate.
The security certificate was issued by a company you have chosen not to trust. View the Certificate to determine whether you want to trust the certifying authority.
Solution
You have a number of options to stop this error.
Option 1 (This is WHAT YOU SHOULD DO!)
You should purchase a certificate signed by a trusted certification authority, these used to cost a fortune, but if you shop around you can pick them up very cheaply.
Option 2 (Free, and handy if you don’t have a lot of clients)
It still amazes me that people with pay out for a new server, and Exchange, but then refuse to buy a certificate? But if your reading this then that might well be you. You can choose to trust the certificate that’s being presented to you. You carry out this procedure on each Outlook client. If you have a lot of Outlook clients then skip to options 3 and 4).
1. First, start up Outlook and get the error message on the screen.
Install your own certification authority, and sign your own Exchange certificate. Great if you already have a CA, though it’s a mess about just to solve this problem.
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