Switch to RHEL 7.2

Lenovo ThinkCentre M91p is my dual monitor workstation in the office. It came with Windows 7 Pro when I got it years ago. Due to some sicking of dealing with stupid tools reason, I decided switch to RHEL 7.2 which more support than Ubuntu/Debian by our community. My ThinkPad T420 still has Ubuntu 14.04 installed […]

ReText icons with Xfce 4

ReText is a simple Markdown editor in Ubuntu. You can simply install it by issuing this: It will install ReText 4.1.2 for you. My remote workstation is a virtual machine and using Xfce instead of Unity. And I also want to use ReText 5.3.0 from PyPI. In both versions of ReText, if you using Xfce […]

Tray icons missing after upgrade from 12.04 to 14.04

Our Ubuntu workstation is required some applications installed for complying security policy. Those applications will show some icons on Systray. After upgrade from 12.04 to 14.04, those icons are missing. The reason is “Unity Notification Area (Systray) Whitelist Is Obsolete [Ubuntu 13.04 Raring Ringtail Changes]“. After a little bit searching, here is the solution: Then log out […]