gitsynch on Windows did not work as expected with private git repos

[hoatle]

phuonglm [6:22 PM]
hình như vagrant dùng ssh binary của nó
không phải ssh binary của cygwin
nên lỗi

hoatle [6:31 PM]
ko biết có liên quan tới lỗi này không hashicorp/vagrant#8739 (comment)

phuonglm [6:43 PM]
VAGRANT_PREFER_SYSTEM_BIN=true la ssh ok

Maybe we should set that env var on Windows system from teracy-dev as default?

[hoatle]

related: #508

[hoatle]

The bug happened on Cygwin (as we need Cygwin for rsync to work).

[hoatle]

we support >= Windows 7, so make sure to test on Windows 7, Windows 10 at least.

[datphan]

we should have a docs for cygwin's user since I can not set this VAGRANT_PREFER_SYSTEM_BIN to be recognized by vagrant

On Windows

Press Windows + R then type services.msc and make sure OpenSSH Authentication Agent service is set to manual

Setup your ssh by following these steps https://help.github.com/articles/generating-a-new-ssh-key-and-adding-it-to-the-ssh-agent/.
Then on cygwin terminal window, type:

$ cp -r /cygdrive/c/Users/$USER/.ssh ~/
$ export VAGRANT_PREFER_SYSTEM_BIN=true
$ vagrant status

[hoatle]

@datphan: please send PR for docs and we’ll let @hoavt to test

[hoatle]

@datphan a section or note for this issue should be documented here https://github.com/teracyhq/dev/blob/develop/docs/getting_started.rst

[hoatle]

I guess @hoavt can update and verify the docs by following @datphan' instruction above, so assigned to @hoavt