updated: 2016-01-21 Almost every Git Repo service (like Github, Bitbucket, GitLab, etc. ) supports SSH while doing git commands through CLI. Besides security, another biggest benefit of using SSH is to save the time for username and password. However, if your machine is not set up correctly, you may encounter this issue. Here is how […]

The latest Mac OSX El Capitan looks great! However, one of the Annoy things is since it updates all certificate root, it always gets problem in accessing internet, even for Apple’s own service, like apple.com, iTunes, etc. The root cause of this is the new certificate root that El Capitan ships do not match all […]

If you have upgraded your Mac to “EL Capitan“, you will probably encounter this issue when you trying to open Trello in Chrome. Your browser was unable to load all of Trello’s resources. They may have been blocked by your firewall, proxy or browser configuration. Press Ctrl+F5 or Ctrl+Shift+R to have your browser try again. […]

Running Ubuntu 14.04 in Parallel Desktop (PD), if it gets Black Screen after the software update, here is how-to-fix: Shutdown Ubuntu. In PD, “Configure > Video > 3D acceleration”, turn it “OFF”. Start Ubuntu. No need to login. Shutdown Ubuntu. In PD, “Configure > Video > 3D acceleration”, turn it “ON”. Start Ubuntu. Should be […]

If you are using Amazon EC2, and probably you have encountered the following situation: ssh: connect to host [ip address] port 22: Connection refused Normally, you would have nothing to do about it, since “having SSH connection” is your only way to get touch with the Amazon EC2 instance and its running system. So, the […]