![]() Installing the CA in Firefox using Group Policy.Installing the CA with Group Policy Using the Group Policy Management Console (GPMC).Installing the CA with Group Policy Using the Microsoft Management Console (MMC).ADVANCED: Automatically Installing the Cisco Umbrella Root CA (For an Active Directory Network).Installing the CA in Chromium or Chrome on Linux.Installing the CA on Mac OS X Command line.Installing the CA in Safari on Mac OS X.Installing the CA in Firefox 2 on Windows.Installing the CA in Internet Explorer & Chrome on Windows.Manually Installing the Root CA (Single Computer).The procedures included in this article are: IMPORTANT: You must be a local administrator over the computer (or a network administrator over the network) in order to perform these steps. For FireFox, a special set of instructions can be followed with a third party extension, as covered in the sections below. This automatic installation of the Root CA only works for users with Internet Explorer or Chrome on Windows systems, so if your network includes some users who use Firefox or Safari browsers, and for users on non-Windows operating systems, the manual installation procedures must be followed for those users. This article describes the procedures required to manually install the Cisco Umbrella Root CA in your browserįor advanced users or systems administrators with larger networks, this article also describes how to install the Cisco Umbrella Root CA automatically (via Active Directory Group Policy Objects) for a group of users in Microsoft Windows Active Directory. As such, so if your network includes some users who use Firefox or Safari browsers, and for users on non-Windows operating systems, the manual installation procedures must be followed. Note that the automatic installation via GPO will only work for users with Internet Explorer or Chrome on Windows systems. ![]() For larger deployments, an automatic installation via Group Policy (GPO) can be done. This can be done on a per-browser, per-machine basis for personal use or for small deployments. To avoid these errors entirely, install the Cisco Umbrella Root CA in your browser, or the browsers of your users (if you're a network admin). Although the error is expected, the messages displayed can be confusing and annoying and you may wish to stop them from appearing. Typical errors include "The security certificate presented by this website was not issued by a trusted certificate authority" (Internet Explorer), "The site's security certificate is not trusted!" (Google Chrome) or "This Connection is Untrusted" (Mozilla Firefox). If the Cisco Umbrella Root CA is not trusted by your browser, an error may be displayed. The certificate will match the requested site but will be signed by the Cisco Umbrella Root Certificate Authority (CA) or the Cisco Umbrella Root Certificate Authority. OpenDNS’s Block Page and Block Page Bypass feature presents an SSL certificate to browsers that make connections to HTTPS sites. In order to avoid certificate errors when accessing the block page, you must install the Cisco Umbrella Root CA in your browser, or if you have a network of computers, in your users' browsers. This block page is encrypted with a certificate signed by the Cisco Umbrella Root CA. When HTTPS enabled domains are blocked by a policy, Umbrella presents a block page to you which is also served over HTTPS.
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