!!! Overview
[{$pagename}] is a [SASL Mechanism] allows a [client] to request the [server] to use [credentials] established by means __external__ to the mechanism to [authenticate] the client.  [{$pagename}] means may be, for instance, IP Security [RFC 4301] or [TLS] services.  In absence of some a prior agreement between the [client] and the [server], the client cannot make any assumption as to what [{$pagename}] means the server has used to obtain the client's [credentials], nor make an assumption as to the form of credentials.  For example, the client cannot assume that the server will use the [credentials] the client has established via TLS.!! More Information
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[{ReferringPagesPlugin before='*' after='\n' }]