Even checking all entries in the finder preferences, the section SHARED never shows up.
So far this is what I tired: I killed the daemon running the preferences, cfprefsd, then I removed com.apple.sidebarlists.plist and com.apple.finder.plist. After rebooting, the finder sidebar changed (all my settings were gone) but it still did not displayed SHARED. Any suggestions?
For screen sharing via Ethernet cable read this
OS X Mavericks: Connect two computers using Ethernet
You can use an Ethernet cable to connect two Mac computers to share files or play network games.
Connect a standard Ethernet cable from the Ethernet port on one computer to the Ethernet port on the other. You don’t need to use an Ethernet crossover cable.
If your computer doesn’t have an Ethernet port, try using a USB-to-Ethernet adapter.
On each computer, open Sharing preferences and note the computer name for each computer.
In the Finder on one of the computers, choose Go > “Connect to Server,” or cmd + K then click Browse.
Double-click the other computer in the window, then enter your password, if necessary.
This may sound silly, but have you moused over the "Favorites" or "Devices" or "Tags" headers? You should see a "Show" or "Hide" button on the right-hand side, across from the label.
