Dear Support, We use X509 certificates provided by our customer certificate authority, in order to use HTTPS protocol for web pages and to encrypt the communication between instances in TLS 1.2. - Modification of the file /opt/splunk/etc/system/local/web.conf for the Web Pages - Modification of the file /opt/splunk/etc/system/local/server.conf for the encryption of the communication between the instances   If these certificates are expired, can you tell us if an issue is expected or if the solution will still work in a degraded mode, with warning messages indicating that the certificates are expired?   Thank you in advance for your answer. BR Malik GHALEB   ... View more