Category: Sysadmin

Password Protect Excel Files

Open an Excel File to Password Protect Open Excel CLICK ‘File,’ ‘Open,’ and open a file CLICK ‘File, ‘Save As’ CLICK ‘Tools’ at the top right of the ‘Save As’ dialog box Create a Password to Protect the File CLICK…

GRE VPN / Tunnel Explained

I had a chance to setup GRE VPN for a customer requirement. Below are the details so that we don’t have to re-invent again.GRE VPN is also called as GRE (Generic Router Encapsulation) tunnel. We need to consider GRE VPN…

Installing FreeRadius on Centos

Here are the steps to install FreeRadius2 on CentOS5. To see the list of available packages, run # yum search freeradius2 Loaded plugins: fastestmirror Loading mirror speeds from cached hostfile * addons: mirror.csclub.uwaterloo.ca * base: mirror.skiplink.com * extras: mirror.csclub.uwaterloo.ca *…

Linux Tape Backup

Magnetic tape is a non-volatile storage medium consisting of a magnetic coating on a thin plastic strip. Nearly all recording tape is of this type, whether used for video, audio storage or general purpose digital data storage using a computer.…