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desktop systems

Gnome Network Manager VPN Tab Disabled ( Greyed out )

How do I configure an NTP (Network Time Protocol) client or server under CentOS / RHEL / Fedora Linux to manage the system clock over a network?
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Ubuntu Linux: Firefox and Desktop Application Fix Smooth Font Problem ( Render Font Correctly )

Q. How do I render font smoothly in Ubuntu Linux / Gnome desktop systems? How do I get look a likes of the Microsoft / Mac OS X smooth fonts for Firefox and other applications?
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HowTo: Find the GNOME Desktop Version

How do I find out GNOME desktop version from a shell prompt or GUI?
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What Ports Need To Be Open For Samba To Communicate With Other Windows/Linux Systems?

What ports need to be open for Samba to communicate with other windows/linux systems? I need to configure Linux firewall so I need the exact port TCP and UDP port numbers for SMB/CIFS networking protocol.
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