You can create your own certificates in an intranet but by default your clients will not trust the intranet's CA so they will get a warning when connecting to the site.
As implied, you need to create your own CA on the network and then create the certificates. Are you connecting to public webservers that you are getting out of date messages? If so, it may by an illegitimate site as most reputable sites will keep a valid certificate.
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.