[SOLVED] SEC_ERROR_UNKNOWN_ISSUER for mail.google.com
Linux - SecurityThis forum is for all security related questions.
Questions, tips, system compromises, firewalls, etc. are all included here.
Notices
Welcome to LinuxQuestions.org, a friendly and active Linux Community.
You are currently viewing LQ as a guest. By joining our community you will have the ability to post topics, receive our newsletter, use the advanced search, subscribe to threads and access many other special features. Registration is quick, simple and absolutely free. Join our community today!
Note that registered members see fewer ads, and ContentLink is completely disabled once you log in.
If you have any problems with the registration process or your account login, please contact us. If you need to reset your password, click here.
Having a problem logging in? Please visit this page to clear all LQ-related cookies.
Get a virtual cloud desktop with the Linux distro that you want in less than five minutes with Shells! With over 10 pre-installed distros to choose from, the worry-free installation life is here! Whether you are a digital nomad or just looking for flexibility, Shells can put your Linux machine on the device that you want to use.
Exclusive for LQ members, get up to 45% off per month. Click here for more info.
When I try to log in to my gmail account today, Firefox reports 'SEC_ERROR_UNKNOWN_ISSUER' and refuses to connect. The ssl server test for that domain returns an 'A' grade for the 3 certificates but also reports
Quote:
Intermediate certificate has an insecure signature. Upgrade to SHA2 as soon as possible to avoid browser warnings.
and
Quote:
Signature algorithm SHA1withRSA INSECURE
I have SHA2 installed. Do I have a problem on my end?
Are you using a proxy of any kind, or is there a possibility that a proxy or security software (or even a program like Fiddler) on your network is checking SSL traffic?
Bizarrely, despite Google making this complaint, when I went to Gmail I was logged in. The symptoms have not recurred. It's not really solved: I don't know what happened, but it's not a problem anymore.
LinuxQuestions.org is looking for people interested in writing
Editorials, Articles, Reviews, and more. If you'd like to contribute
content, let us know.
