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ERROR: Failed to verify certificate... IP address mismatch

Environment

• IGEL UMS 12 on Linux

Problem

For new or update installations on a Linux host, the IP address determined by the JRE can be often wrong (e.g. default IP: 127.0.1.1). If the correct IP of the UMS Server was not specified in the UMS installer during the installation / update, this will lead to invalid UMS certificates.

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Solution

You have to generate a new certificate:

1. In the UMS Console, go to UMS Administration > Global Configuration > Certificate Management > Web.
   

2. Select the existing certificate and click Renew certificate

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2. In the dialog Create Signed Certificate, fill in the empty fields (if there are any); all other settings can be left unchanged. Click Manage hostnames.
   

3. In the dialog Set Hostnames for Certificate, check if "localhost" and all IP addresses and FQDNs (Fully Qualified Domain Names) under which your server is reachable are displayed under Assigned hostnames. If not, add the missing IP addresses and FQDNs under Add hostname manually.
   Note: Under Assigned hostnames, there must be only FQDN-compliant names. Remove all not FQDN-compliant names, if there are any, using an arrow button.

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4. Click Ok. 
   

5. In the dialog Transfer Server Assignments, click Transfer.
   Note: If you are not sure, you can click Cancel and assign the created certificate later via Assign server in the context menu.

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   A new certificate will be created and used for the server.

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