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--- wiki:advanced:x2gobroker:howitworks [2013/03/28 10:16]
sunweaver [Authentication]
+++ wiki:advanced:x2gobroker:howitworks [2013/03/28 10:20]
sunweaver [Extra Security: Pre-shared Authentication ID]
@@ Line 17: / Line 17: @@
 With an HTTP(S) broker it could be //username and password//. With an SSH broker a //SSH key based authentication// is also possible.
+==== Authentication methods against provided X2Go Servers ====
+For authentication against X2Go Servers, SSH is used. With SSH you can use //username and password// authentication, SSH key authentication, GnuPG-Smartcard based authentication, etc.
 ===== Extra Security: Pre-shared Authentication ID =====
-With both types of broker (HTTP, SSH) you can use an additional parameter "authid" for verifying the trust state of an authenticating user. The authentication ID is a user defined string (like a pre-shared key) which is stored in file on the client-side.
+With both session broker types (HTTP, SSH) you can use an additional parameter ''authid''. The authentication ID is used for verifying the trust state of an authenticating user/machine. The authentication ID is a user defined string (like a pre-shared key) which is stored in a file on the client-side.
 The file path to the authentication ID has to be specified as the X2Go Client command line option ''<nowiki>--auth-id</nowiki>''.
+The usage of this feature is optional.
 ===== Don't Check User Data =====

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