Merge pull request #308 from ebeahan/update_fortios_docs

Update fortios docs

docs/support/fortios.rst

@@ -11,4 +11,9 @@ To make sure the rollback feature works either use only this API to do changes o
 Atomic Changes
 ~~~~~~~~~~~~~~
 
-FortiOS' plugin will use the "batch" feature. All commands will not go at the same time but all of them will be processed. The sad true is that FortiOS doesn't have any proper tool to apply large chunks of configuration.
+FortiOS' plugin will use the "batch" feature. All commands will not go at the same time but all of them will be processed. The sad true is that FortiOS doesn't have any proper tool to apply large chunks of configuration.
+
+Known Issues
+~~~~~~~~~~~~
+
+Beginning in FortiOS version 5.2, a Fortigate bug was introduced that generates an ``EOFError`` in ``paramiko/transport.py`` during the SSH key exchange. Full details of the ``paramiko`` issue documented `here <https://github.com/paramiko/paramiko/issues/687#issuecomment-196577317>`_. Current workaround is to edit the `preferred key exchange algorithms <https://github.com/paramiko/paramiko/blob/74ba0149347bfeb2f83ddd46672a2912aea51f23/paramiko/transport.py#L125-L130>`_ in ``paramiko/transport.py``. Either move ``diffie-hellman-group1-sha1`` below ``diffie-hellman-group-exchange-sha1`` or delete ``diffie-hellman-group1-sha1``.