Technical Considerations; Deploying An Ssl Certificate - Aruba Networks PowerConnect W Clearpass 100 Software Deployment Manual

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Technical considerations

Deploying an SSL certificate

Special consideration needs to be given to deployments that require SSL access to the
cluster.
The Common Name (CN) of an SSL certificate must match the hostname of the site being
visited. Certificates that do not meet this requirement may still be used to secure the
connection, but a browser security warning is displayed. In modern browsers this warning
is intended to deter users from what may be a potentially serious "man in the middle"
attack. Non-technical visitors should not be expected to analyze and interpret these
messages.
Where SSL access is a requirement, the recommended approach is to issue the certificate
for the hostname of the cluster's virtual IP address, and install the same certificate on both
nodes.
This approach ensures that all operator and visitor access to the cluster is secured with a
certificate that matches the hostname and IP address, avoiding any unnecessary browser
security warnings.
NOTE When using this approach, the administrator will receive browser security warnings about
the certificate hostname mismatch if he accesses each node individually.
Amigopod |Technical Note

This message may be displayed if the node cannot be contacted. There
may be a network issue affecting your management workstation, or the
node may be offline.

Refresh your web browser to check the connection to the node.

If the problem persists, check the cluster status on the other node.
High Availability Deployment Guide |11