In Security page, you can set encryption method and MAC (Message Authentication Code).

Encryption algorithms are used to encrypt and decrypt network traffics. You can select a preferred encryption algorithm in the list. When you select the , multiple algorithms are tried in the order appeared in the list. To edit the , click Edit.

A MAC ensures data integrity and it provides increased security of SSH2 protocol over SSH1. You can select a preferred MAC algorithm in the list. When you select the , multiple algorithms are tried in the order appeared in the list. To edit the , click Edit.

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Please contact the server administrator at webmaster@systemmanager.forsenergy.ru to inform them of the time this error occurred, and the actions you performed just before this error.

More information about this error may be available in the server error log.

Additionally, a 500 Internal Server Error error was encountered while trying to use an ErrorDocument to handle the request.