![]() In Dedicated Instance Cisco manages the certificates for the UC applications and hence the certificates are signed with theĬisco provided domain only, for e.g. It makes it much more difficult to steal the identity of the Expressway. Owns the domain is able to get a CA-signed certificate. Means only the company that owns the domain will be able to get a CA-signed certificate.Īny SAN entered in the certificate is subject to validation from the Certification Authority (CA), so only the company that Other registrars you may want to consider are. Personally, I have had good experience with Porkbun and Namecheap. Any SAN entry made in the certificate requires to be signed by the Certification Authority (CA), which Register your Domain Name There are a lot of good domain name registrars. Only if it matches, Jabber tries to connect To avoid this issue, Jabber performs anĪdditional validation step which is not part of the standard TLS, it checks that the domain entered during the login processīy the user matches the Subject Alternative Names (SAN) included in the certificate. It accepts that certificate, and the user can be connected to a malicious system. Jabber their own server with a valid TLS certificate instead of the expressway, then Jabber in the absence of further control, However, this implementationĬould potentially bring in 'man-in-the-middle' attack, when Jabber deploys over the internet. During the TLS handshake, a standard TLS client checks the validity of the TLS server certificate.
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