11/14/2023 0 Comments Nxfilter ssl certificate error![]() ![]() The steps to install the DNSFilter SSL certificate on Active Directory are: Managed Services Providers (MSPs) have a different certificate file, but the install procedure is the same. (Keep in mind your Group Policy OU may be different) ![]() The setup for this takes only a few minutes and is illustrated in this clip and documented below. Organizations that utilize Active Directory can use Group Policy to push the DNSFilter root certificate across their infrastructure. SSL Certificates are installed automatically if you are using the Windows Roaming Client. If(Test-Path "C:\Program Files\Mozilla Firefox\defaults\pref\") Deploying with Active Directory & certutil -addstore -enterprise -f "Root" $File This is mostly for MSP's who need to mass deploy the certificate with their RMM tool. The following PowerShell script will download the certificate to the temp folder, and then install it to the system and enable Firefox to use the system certificate store. (Credit to Thomas Leister) ECHO pref("security.enterprise_roots.enabled", true) > "C:\Program Files\Mozilla Firefox\defaults\pref\firefox-windows-truststore.js"įor more information on Firefox installation, please refer to this documentation. Running the following command in an administrative command prompt.Navigate to about:config in Firefox and set security.enterprise_roots.enabled to true.The best way to install for Firefox is to link it to the Windows Trust Store. The Firefox browser utilizes its own certificate store by default. (If you are a Managed Services Provider, you have a separate certificate file which you can download from the Tools section of the dashboard.)Īssuming that the certificate was downloaded into the current user’s Download folder, you can run the following command in an administrative prompt to install it into the certificate store: certutil -addstore -enterprise -f "Root" "C:\Users\%username%\Downloads\DNSFilter.cer" Firefox In order to install the SSL root certificate on Windows, first download the DNSFilter Certificate. Without the certificate, an SSL error message similar to the one below will be displayed when a user tries to visit a blocked website:Īfter installing the DNSFilter SSL root certificate, you will be able to receive block pages over domains, such as the one below: User is prevented and receives browser error. User is prevented and receives block notification. ![]() You do NOT need to install the SSL certificate with the roaming agent, as it comes installed with it already! To summarize, they will NOT be presented with the block page without the SSL cert installed for network deployments on HTTPS websites (This is because of how HTTPS operates and is why SSL certificates are a technical requirement for any filtering provider). Without certificate installation, the user will receive an error in their browser when attempting to visit blocked sites. It is utilized to display block page messages when users attempt to visit websites that are blocked in your Policy. Do DC's demand that they only be pointed to an authoritative DNS server.Installation of the DNSFilter SSL Root certificate is optional. Just more periods fore the sake of periods. But then they fail to validate with that stupid unknown error.ĭo DC's demand DNS servers have a FQDN. The host name is just DNS and the DCs do figure that out just fine once I point their forwarders to 10.1.0.199. IP = 10.1.0.199 and the FQDN = not a real FQDN. FQDN = indigo.is.usĭC-2 DNS liostening on 10.2.0.1 and some ip6 crap FQDN = red.is.us I can point individual computers to nxfilter via its ip and it works, just not DC's.ĭC-1 DNS listening on 10.1.0.1 and some ip6 crap. ![]() But when I try to point the windows server forwarder to the nxfilter box it fails with the error "An unknown error occurred while validating the server". So I wanted to point the forwarders in our DC's to a linux mint box running nxfilter and then point nxfilter's upspteam dns server to akami. When an external name needs to be resolved we have a forwarder to akami 97.7.136.4 in our DC's. I have a multi- domain organization where the DC's of the same domain all point to each other for redundancy across a large wan to resolve host-names and trusts exist between them other domains in our forest. ![]()
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