Changes between Version 1 and Version 2 of External_Supercomputing_Notes

Timestamp:

Dec 17, 2013, 6:03:18 PM (13 years ago)

Author:

watersc1

Comment:

--

External_Supercomputing_Notes

@@ -7 +7 @@
 || DMZ_DN   || Full domain name for the DMZ_HOST ||
 || USERNAME || Cluster username ||
+
+== Logging in ==
+
+To reduce the number of login/password authorizations, it's recommended to use the ControlMaster ssh parameters.  This requires only the first connection to be validated, as subsequent connections are passed through the already validated connection.  The .ssh/config options to implement this are:
+
+{{{
+Host DMZ_HOST
+  User          USERNAME
+  Hostname      DMZ_DN
+  ForwardX11    yes
+  ForardAgent   yes
+  RequestTTY    force
+  ControlMaster auto
+  ControlPath   ~/.ssh/connections/%h_%p_%r
+}}}
+
+The ~/.ssh/connections/ directory needs to be created if it does not already exist.  With this configuration in place, you can log in to the computing front end with {{{ssh -t DMZ_HOST ssh SEC_HOST}}}.  The DMZ_HOST does not support commands other than ssh and scp, and is used only to bounce the connection to SEC_HOST.
+
+==