Обновление сертификата Skype4Business | Блог Сисадмина

Certificates issued by intermediate cas

In most cases, server certificates are issued by intermediate Certificate Authorities (as opposed to Root CAs). When this is the case, the chain of intermediate CA certificates must be installed on the Management Node to ensure that the certificate chain of trust is properly established when clients connect to a Conferencing Node over SIP TLS.

The intermediate CA certificates can be bundled/concatenated in a single text file and uploaded to the Management Node by going to Platform > Trusted CA certificates and selecting Import. Whenever a Certificate Authority provides a server certificate issued through one or more intermediate CAs, the provider normally also provides this bundle of intermediate CA certificates as part of the process.

To identify whether or not a certificate has been issued by an intermediate CA, ensure that the certificate has a .cer file extension and open the certificate file on a Windows PC. Navigating to the Certification Path pane will display the CA structure of the certificate.

Configuring the sip tls fqdn for a conferencing node

When assigning a server certificate to a Conferencing Node, you must configure the SIP TLS FQDN for this Conferencing Node to an FQDN matching that of the certificate.

The SIP TLS FQDN setting is configurable for each Conferencing Node, by going to Platform > Conferencing Node connects with a video network infrastructure device that performs a TLS verification process, the server certificate on the Conferencing Node needs Client Authentication capabilities.

By default, the “Web Server” certificate template used by the Microsoft Certification Authority tool in Active Directory Certificate Services (AD CS) creates a certificate with Server Authentication capabilities only. This section describes how to configure Windows Server Manager to use a certificate template with client and server capabilities.

To set up a certificate template with Server and Client Authentication (using Windows Server Manager 2021):

1. In Windows (server edition), launch Server Manager.
2. Launch the Certification Authority tool.
3. Expand the navigation tree for your Certification Authority and select Certificate Templates.

4. Right-click on Certificate Templates and select Manage to open the Certificate Templates Console.

   

5. Create a new template based on the existing Web Server template:

   1. Right-click on Web Server (in the list of templates) and select Duplicate Template.

      

   2. On the General tab, enter the Template display name and Template name for your new template, for example “Web Client and Server” and “WebClientServer” respectively.
   3. On the Extensions tab, select Application Policies and select Edit.

   4. Add Client Authentication to the set of application policies:

      1. Select Add.
      2. Select Client Authentication and select OK.
      3. Select OK.

      

   5. Select OK to complete the addition of the new template.
6. You can now close down the Certificate Templates Console.

7. Add the new template to your Certificate Authority:

   1. From the Certification Authority tool, expand the navigation tree for your Certification Authority, right-click on Certificate Templates and select New > Certificate Template to Issue.

      

   2. Select your new Web Client and Server template and select OK.

The new Web Client and Server template can now be used when submitting a certificate request to that Microsoft Certification Authority.

Note that all CSRs generated via Pexip Infinity’s inbuilt CSR generator always request client certificate and server certificate capabilities.

Enable your ssl certificate

To enable the certificate for default and web services roles run the following command:

Set-CsCertificate -Type WebServicesExternal -Thumbprint “B142918E463981A76503828BB1278391B716280987B”

If your search command returned just one result, you can enable the certificate via the following command:

Get-CsCertificate | Where-Object {$_.Subject -eq “CN=domaine.tld”} | Set-CsCertificate -Type Default, WebServicesInternal, WebServicesExternal

That’s it. For more information, please refer to Microsoft’s official documentation here and here.

You can scan your newly installed SSL certificate for potential errors with the help of these handy SSL tools.

Install the ssl certificate on skype for business

After your CA sends the necessary files to your inbox, download the ZIP folder and extract its contents on your device. Skype for Business requires SSL files to be in PKCS#7 (.p7b) or PKCS#12 (.p12 or .pfx) formats. 

If you receive your cert in another format such as PEM for instance, you can convert it via OpenSSL or an external conversion tool. For more information, check our guide on SSL certificate formats.

You should know what particular service you want to encrypt using the -Type argument. For more information on services, check Microsoft’s documentation.

To import a PKCS#12 (.p12 or. pfx) file, enter the following command in your Skype for Business server powershell, replacing the path: 

Import-CsCertificate -Path “c:your_certificate.pfx” -PrivateKeyExportable $True

Locate your ssl certificate

First, you need to identify your SSL certificate via the Get-CSCertificate cmdlet and then sort the results with the Where-Object cmdlet.

Enter the following command to list all available certificates:

Get-CsCertificate

To find your particular certificate enter the following.

Get-CsCertificate | Where-Object {$_.Subject -eq “CN=yourdomain.tld”}

On-prem environment requirements

When requesting certificates for Conferencing Nodes for on-prem deployments:

See Assigning the certificate to Conferencing Nodes for more information and examples for an on-prem deployment.

Public dmz environment requirements

When requesting certificates for Conferencing Nodes for public DMZ deployments:

See Assigning publicly-issued TLS server certificates to Conferencing Nodes for more information and examples for a public DMZ deployment.

Skype for business history

Skype for Business (formerly Microsoft Lync and Office Communicator) is an enterprise instant messaging software developed by Microsoft as part of the Microsoft Office suite. It comes with the on-premises Skype for Business Server, and software as a service version offered as part of Office 365. 

Where to buy the best ssl certificate for skype for business?

SSL dragon is your one-stop place for all your SSL needs. We offer the lowest prices on the market for the entire range of our SSL products. We’ve partnered with the best SSL brands in the industry to offer you high-end SSL security and dedicated support.

To help you select the perfect SSL certificate, we created a couple of handy SSL tools. Our SSL Wizard can recommend the best SSL deal for your online project, while the Certificate Filter, can help you sort and compare different certificates.

If you find any inaccuracies, or you have details to add to these SSL installation instructions, please feel free to send us your feedback at [email protected] Your input would be greatly appreciated! Thank you.

Обновление сертификата skype4business | блог сисадмина