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 The security measures on the evaluation centers IT side must be taken seriously. Minimum requirements are a always well updated operating system, a current virus scanner and the use of the latest custo diagnostics version
 Even by taking the security measure seriously some hackers may always be one step a head of the security measures. 

Important; If you use the internet port forwarding, make sure that neither on sender nor on evaluation center side application layer firewalls or proxies opening up the SSL chain block the traffic. In such setups please make sure that the network traffic from the diag sender to the evaluation center gets defined as exception (best as *.customed.de* ). Otherwise it will be possible to register the sender in the evaluation center, but it will be impossible to transfer evaluations. in network environments managed by other service providers please discuss that topic with the provider beforehand.

Configuration in custo diagnostics

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Saves the CustoCfg.ini with the new URL to the disk so that it can be used for future purposes.

Known issues on the sender side:

It may happen that on the sender side, that the channel to evaluation center cannot be established. One of the reasons may also be that the relevant Let's Encrypt CAs are not trusted.

In this case please open one of the system browsers (Edge or IE) on sending custo diagnostic server and go to https://letsencrypt.org/

Afterwards restart the custo diagnostic server on the sending side.