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Because there are more flavors of Linux than any other operating system, we will discuss the setting up of Ubuntu which is the fastest growing version of Linux. Setting up a VPN on Windows is a snap. By using wizards to set up these connections step by step, you will see that most Linux versions are more complex. Even experienced administrators often get confused on downloading and adding packages. With Ubuntu, vpns are standardized and have a GUI interface making life a little easier.
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Setting up a VPN Ubuntu
- In order to make a connection, an administrator must use the Microsoft PPTP, Cisco or OpenVPN connection type along with the username and password (authentication) for the account
- Next, install the Network Manager Applet through the Add/Remove section of the Ubuntu menu.
- The administrator must install the plug-in of network - manager - pptp, network - manager -vpnc (for Cisco VPN) or network - manager - openvpn
- Use the Synaptic Package Manager for the aforesaid connection types
- Next you should left click the network manager applet and select VPN Connections, then select Configure VPN and the last selection of Add, will bring up an area where you must install your connection details.
- Left click the network manager applet and select VPN Connections then select and click on the connection that was setup to connect to the VPN.
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- Problems can occur with any connection regardless if it is Linux or Windows
- Follow these steps closely
- If the connection you setup is greyed out or you see Manual Configuration, don't panic.
- The administrator should backup /etc/network/interfaces to /etc/network/interfaces.original
- You should delete the lines from /etc/network/interfaces leaving the string "lo"
If this leaves you without an internet connection, restore the original file and reboot your computer. Check the connection again and see if the GUI steps are available. You may have to leave two lines auto and iface if they are present during the deletion of the lines from /etc/network/interaces (leave the string "lo" in place) Reboot and try again.