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Represents the kind of error that can arise while establishing a kerberized connection.
Incompatible_client: The client and server are not compatible
The client is speaking a different known protocol. This can happen if the client is a standard rpc client and the server isn't using serve_with_anon. It can also happen if the client is using a different Mode.t (e.g. the server is using Kerberized and the client is using Test_with_principal)
The client and server don't agree on whether there should be authentication, integrity-checking and/or encryption (See conn_type.mli)
The client and server don't have any overlapping internal protocol versions. We maintain backwards compatibility so this should only occur in cross-realm environments (which require V5 and above) or when using Internal functions that take ?override_supported_versions
Unexpected_or_no_client_bytes: Issues transmitting or reading data
Client unexpectedly closes the connection.
Client sends unexpected data that doesn't parse
Unexpected_exception: Other unexpected server-side issues.