<div dir="ltr">(Prerequisites)The self-signed certificate is used. To check 
whether each server run properly or not, only two VMs were set up(the 
VM1 for SSO, the other VM2for API server, Git server, Workbench) under 
the direction of <a href="http://doc.arvados.org/install/index.html" target="_blank">http://doc.arvados.org/install/index.html</a>.<br><div>     (Detailed description)<br>     (1)visit workbench<br></div><div>     (2)click Log in to Arvados<br></div><div>     (3)input the user name and password.<br></div><div>     (4) click sign in.<br></div><div>    
 After a long waiting, the browser reported there is an error,"Sorry, 
something went wrong logging you in. Please try again.".<br></div><div>     Could you please give  me some hints or clues to solve this problem? <br>     The following is the logs.<br></div><div><br></div><div><ul><li><b>    </b><b><b>on API/Git/Workbench server, on VM1</b> , /var/log/nginx/error.log:</b></li></ul>App 24530 stdout: (joshid) Callback phase initiated. <br>App
 23772 stdout: (joshid) Authentication failure! timeout: 
Errno::ETIMEDOUT, Connection timed out - connect(2) for 
"auth.xyworkflow" port 443<br></div><div><ul><li><b>     </b><b><b>on SSO server, on VM2</b>, /var/www/arvados-sso/shared/log/production.log</b></li></ul></div>Started GET "/users/sign_in" for 127.0.0.1 at 2016-05-09 15:15:42 +0800<br>Processing by SessionsController#new as HTML<br>  Rendered sessions/new.html.erb within layouts/application (3.0ms)<br>  Rendered application/_links.html.erb (0.6ms)<br>Completed 200 OK in 11ms (Views: 10.3ms | ActiveRecord: 0.0ms)<br><br><br>Started POST "/users/sign_in" for 127.0.0.1 at 2016-05-09 15:15:47 +0800<br>Processing by SessionsController#create as HTML<br>  Parameters: {"utf8"=>"✓", "authenticity_token"=>"E7K5dpfrnKLAY3e2djlpYZpPy5Ll1iibNADIKRYZN5I=", "user"=>{"email"=>"<a href="mailto:hitpanglong@163.com" target="_blank">hitpanglong@163.com</a>", "password"=>"[FILTERED]"}, "commit"=>"Sign in"}<br>Redirected to <a href="https://auth.xyworkflow/auth/josh_id/authorize?response_type=code&client_id=arvados-server&redirect_uri=https%3A%2F%2Fplm16.xyworkflow%2Fauth%2Fjoshid%2Fcallback%3Freturn_to%3Dhttps%253A%252F%252Fworkbench.plm16.xyworkflow%252Fusers%252Fwelcome%253Freturn_to%253D%25252F&auth_provider&state=7da100019dd1b4b002d5eebc245c8c3633e9ff57df8ad4ab" target="_blank">https://auth.xyworkflow/auth/josh_id/authorize?response_type=code&client_id=arvados-server&redirect_uri=https%3A%2F%2Fplm16.xyworkflow%2Fauth%2Fjoshid%2Fcallback%3Freturn_to%3Dhttps%253A%252F%252Fworkbench.plm16.xyworkflow%252Fusers%252Fwelcome%253Freturn_to%253D%25252F&auth_provider&state=7da100019dd1b4b002d5eebc245c8c3633e9ff57df8ad4ab</a><br>Completed 302 Found in 64ms (ActiveRecord: 0.3ms)<br><br><br>Started GET "/auth/josh_id/authorize?response_type=code&client_id=arvados-server&redirect_uri=https%3A%2F%2Fplm16.xyworkflow%2Fauth%2Fjoshid%2Fcallback%3Freturn_to%3Dhttps%253A%252F%252Fworkbench.plm16.xyworkflow%252Fusers%252Fwelcome%253Freturn_to%253D%25252F&auth_provider&state=7da100019dd1b4b002d5eebc245c8c3633e9ff57df8ad4ab" for 127.0.0.1 at 2016-05-09 15:15:47 +0800<br>Processing by AuthController#authorize as HTML<br>  Parameters: {"response_type"=>"code", "client_id"=>"arvados-server", "redirect_uri"=>"<a href="https://plm16.xyworkflow/auth/joshid/callback?return_to=https%3A%2F%2Fworkbench.plm16.xyworkflow%2Fusers%2Fwelcome%3Freturn_to%3D%252F" target="_blank">https://plm16.xyworkflow/auth/joshid/callback?return_to=https%3A%2F%2Fworkbench.plm16.xyworkflow%2Fusers%2Fwelcome%3Freturn_to%3D%252F</a>", "auth_provider"=>nil, "state"=>"7da100019dd1b4b002d5eebc245c8c3633e9ff57df8ad4ab"}<br>Redirected to <a href="https://plm16.xyworkflow/auth/joshid/callback?return_to=https%3A%2F%2Fworkbench.plm16.xyworkflow%2Fusers%2Fwelcome%3Freturn_to%3D%252F&code=4f21d265337016b00e9889c852a2a594&response_type=code&state=7da100019dd1b4b002d5eebc245c8c3633e9ff57df8ad4ab" target="_blank">https://plm16.xyworkflow/auth/joshid/callback?return_to=https%3A%2F%2Fworkbench.plm16.xyworkflow%2Fusers%2Fwelcome%3Freturn_to%3D%252F&code=4f21d265337016b00e9889c852a2a594&response_type=code&state=7da100019dd1b4b002d5eebc245c8c3633e9ff57df8ad4ab</a><br>Completed 302 Found in 4ms (ActiveRecord: 2.1ms)</div>