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Old 03-04-2014, 05:26 PM
rtb rtb is offline
VanDyke Technical Support
 
Join Date: Aug 2008
Posts: 4,306
Hi AbhishekJ,

I just wanted to post a follow-up. I am not recommending that you disable the Authentication logging option. This information is typically desired to see legitimate failures, and possibly brute force attacks.

The none authentication type is not something to be seen as suspicious. Here is a snippet from the protocol definition:
Quote:
Authentication methods are identified by their name, as defined in [SSH-ARCH]. The "none" method is reserved, and MUST NOT be listed as supported. However, it MAY be sent by the client. The server MUST always reject this request, unless the client is to be granted access without any authentication, in which case, the server MUST accept this request. The main purpose of sending this request is to get the list of supported methods from the server.
What problem are you trying to solve?
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