Some people find it tricky (especially Windows users) when it comes to installing the Cisco VPN Client in Linux.
Once you have downloaded the compressed file (either officially from Cisco or by other means) create a folder in a location that you won't be deleting any time soon. (I usually create a sub-folder called "vpnclient" under a folder called "Support" on the root of the drive.)
Extract the files into this folder. Then bring up a terminal (a command prompt) and browse to the folder location where you extracted the files.
Run the command:
sudo ./vpn_install
*Except the Defaults
After it is installed you can either reboot or run the command:
sudo /etc/init.d/vpnclient_init start
This command will start the VPN subsytem.
Once this is done you can connect from the vpn by typing the command:
vpnclient connect [pcf file name]
And to disconnect you can bring up another terminal and type the command:
vpnclient disconnect
The pcf files from your Windows Cisco VPN client will work just fine in your Linux Cisco VPN. The pcf Profile files are located in etc/opt/cisco-vpnclient/Profiles/ so you can copy your .pcf files to this location.
Saturday, October 18, 2008
Wednesday, September 10, 2008
Password Reset
If you forgot you password for your Ubuntu system you can recover using the following steps:
1. Turn your computer on.
2. Press ESC at the GRUB prompt.
3. Press e for edit.
4. Highlight the line that begins "kernel ………", press e
5. Go to the very end of the line, add rw init=/bin/bash
6. Press enter, then press b to boot your system.
Your system will boot up to a passwordless root shell.
Type in passwd "Username"
Set your password.
Type in reboot
*If you don't know your username or the root password you could follow the same steps to reset the root password; just type in passwd root instead of passwd "Username". Then after having reset the root password you could ssh from another box to your box login with the root credentials and browse the home folders for the Usernames.
1. Turn your computer on.
2. Press ESC at the GRUB prompt.
3. Press e for edit.
4. Highlight the line that begins "kernel ………", press e
5. Go to the very end of the line, add rw init=/bin/bash
6. Press enter, then press b to boot your system.
Your system will boot up to a passwordless root shell.
Type in passwd "Username"
Set your password.
Type in reboot
*If you don't know your username or the root password you could follow the same steps to reset the root password; just type in passwd root instead of passwd "Username". Then after having reset the root password you could ssh from another box to your box login with the root credentials and browse the home folders for the Usernames.
Thursday, June 26, 2008
Video Drivers
If you have an advanced Video Card - (and it happens to be Nvidia or ATI) you can sometimes have trouble installing the drivers. Even if you don't have any troubles the process can be a bit much; even worse after you get done getting your video card setup a Kernel patch may come up and kill all your hard work.
A fast and easy way to install your Video drivers (again if they happen to be an Nvidia or ATI chip set) is to use a program called Envy. This can help you with your initial installation, and any time you have to reinstall because of a Kernel update - as well as keep your video drivers up-to-date.
In a terminal - run:
sudo apt-get install envyng-gtk
Then Launch EnvyNG's GUI (inside a Desktop Environment such as GNOME,KDE, etc.) by selecting it in the "Applications/System Tools" menu.
A fast and easy way to install your Video drivers (again if they happen to be an Nvidia or ATI chip set) is to use a program called Envy. This can help you with your initial installation, and any time you have to reinstall because of a Kernel update - as well as keep your video drivers up-to-date.
In a terminal - run:
sudo apt-get install envyng-gtk
Then Launch EnvyNG's GUI (inside a Desktop Environment such as GNOME,KDE, etc.) by selecting it in the "Applications/System Tools" menu.
VirtualBox
Most of the time when you are running Ubuntu and the Kernel level gets upgraded the "virtualbox-ose-module-generic" does not get upgraded.
And so when you try to run VirtualBox you get the error "VirtualBox kernel driver not installed" or something related.
(This can also happen the first time you run VirtualBox on a new (but fully patched) install.)
To fix this run the following commands:
sudo apt-get install virtualbox-ose-source
sudo m-a update
sudo m-a prepare
sudo m-a a-i virtualbox-ose
sudo /etc/init.d/vboxdrv restart
And so when you try to run VirtualBox you get the error "VirtualBox kernel driver not installed" or something related.
(This can also happen the first time you run VirtualBox on a new (but fully patched) install.)
To fix this run the following commands:
sudo apt-get install virtualbox-ose-source
sudo m-a update
sudo m-a prepare
sudo m-a a-i virtualbox-ose
sudo /etc/init.d/vboxdrv restart
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