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wireless networks

Gnome Network Manager VPN Tab Disabled ( Greyed out )

I've the NetworkManager service is installed and started under Linux desktop. The applet is running. The NetworkManager can display available network hardware and wireless networks. But, I'm unable to add VPN support as the Add tab is greyed out. I need to use both PPTP and Cisco vpn clients. How do I fix this problem under Debian or Ubuntu Linux?
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ifconfig Command Does Not Show IPv4 Address

ifconfig command does not show IP address on my Linux based laptop computer. How do I fix this problem?
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Linux Gnome: Networkmanger Connects To Wrong Default Wireless Access Point

Q. I'm using Ubuntu Linux and my Gnome network manger always connects to wrong default WAP / AP after login ( boot ). How do I fix this problem?
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