How to install openvpn client on Samsung Galaxy Tab 10.1

Hardware Requirement
   Samsung Galaxy Tab 10.1 (I'm tested on rooted Official firmware : Android 3.2 HC.)
Software Requirement
   1.   OpenVPN Installer (from market)
   2.   OpenVPN Setting (from market)
   3.   BussyBox Installer (from market)
   4.   SSHDroid ssh server (from market)
PC Software Requirement
   1.   Putty ssh client


Step
   1.   If your tablet doesn't rooted please roote it's first.
   2.   Open BussyBox Installer and install bussy box to /system/xbin/
   3.   Connect your tabet to pc and copy openvpn configuration files to tablet /sdcard/openvpn/
   5.   Connnect you tablet to wifi-network (same the pc's network)
   4.   Open putty on your pc and connect it to your tablet (default username is root and password is admin)
   5.   run following command
         cd /
         mount -o remount rw /system
         ln -s /system/xbin/busybox /system/bin/cp
   6.   On your tablet Open OpenVPN Installer
   7.   Install OpenVPN to /system/bin/ and choose path of ifconfig to "/system/xbin/busybox ifconfig"
         if status showed "Binary Installed" it's mean installation success.
   8.   Open OpenVPN Setting and go to advance menu.
   9.   Do not checked on Load tun kernel module (Because i'm check for tun.ko is now loading to kernel. I'm using Tun.ko from market to check tun.ko in kernel module). Set Path to Configurations to "/sdcard/openvpn". Set Path to openvpn binary to "/system/bin/openvpn" and press back button. Now. You should see your open configuration connections.
   10. Enjoy.


*** if you have problem about dns cannot change you can set dns by press connection you want and then select preference. Check on "Use VPN DNS Server" and set "VPN DNS Server" to your DNS Server.


Reference
http://vpnblog.info/android-openvpn-strongvpn.html
http://code.google.com/p/android-openvpn-installer/issues/detail?id=2
http://linux.about.com/od/commands/l/blcmdl8_mount.htm

How to root Samsung Galaxy Tab 10.1

Hardware Requirement
   Samsung Galaxy Tab 10.1 (I'm tested on Official firmware : Android 3.2 HC.)
How to
   1.   if you don't have Samsung Galaxy Tab Driver for you computer please download and install it first.
   2.   download  tabrooteasy.zip and then extract to local hard drive
   3.   connect your tablet to computer
   4.   copy Samsung_Galaxy_Tab_10.1_root.zip to root of sdcard
   5.   Power Off your tablet
   6.   Hold down PowerOn Button + Volumn Down Button and wait for Downloading Menu
   7.   Press Volumn UP button to select Downloading Menu and enter to Odin download mode
   8.   Open Odin3 v1.85.exe
   9.   Press PDA Button and open "recovery-cwm_4.0.0.4-sam-tab-10.1.tar.md5" file and then click start
   10. Now the tablet is now restarting. If it's not restart you can restart it manually by press power on button.
   11. Restart your tablet again and enter to recovery menu by hold down PowerOn Button + Volumn Down Button
   12.  Press volumn down button to select recovery menu and then press volumn up button to enter menu
   13.  Remember. Now I'm use thair button for
          Volumn UP or Volumn Down for select menu
          Power On button for enter menu
   14.  choose "install zip from sdcard" -> "choose zip from sdcard" -> "Samsung_Galaxy_Tab_10.1_root.zip" -> "Yes"
   15.  Back to main menu and reboot your tablet
   16.  Now tablet are rooted.


Original Article from http://galaxytabhacks.com/galaxy-tab-10-1-hacks/how-to-root-galaxy-tab-10-1-the-easy-way/