SiliconDust HDHomeRun Networked Digital TV Tuner
I was looking for a tuner that I could use with my mythtv setup. But then, I wanted to run my mythtv on a high end vmware virtualized machine. So a regular tuner is not an option. And HDHomeRun fits in perfectly in this setup. If it can work in this setup, it can work on a regular setup easily.
My setup has VMware machine with mythtv and a dual tuner HDHomerun device. The tuner is connected on a 100 Mbps switch along with the machine running mythtv. I am sure a faster switch will further improve the performance.
Mythtv is able… Continue reading
Turecrypt Encryption - Easy, Effective & Free!!!
I have been using Truecrypt opensource encryption software for a very long time now. It’s one of the easiest security applications, I have ever come across - easy to install and easy to use. And the overall installation takes so little effort and space, you will be surprised to see what you can get using this application. It uses less than 4MB - that’s much smaller than the high quality picuture files we have these days!
And you can easily carry it with you on your USB drive without installing. Just unzip the files from the download and copy them to… Continue reading
Running anti-virus from USB Flash Drive
I find this link very useful. You can run Clamwin directly in stand-alone mode from your USB flash drive on any windows based computer. Not bad!
SSH - Public Private Key authentication
How to user public-private key authentication with SSH?
On your unix session run the following command:
$$ ssh-keygen
Generating public/private rsa key pair.
Enter file in which to save the key (/home/user_id/.ssh/id_rsa):
Enter passphrase (empty for no passphrase):
Enter same passphrase again:
Your identification has been saved in /home/user_id/.ssh/id_rsa.
Your public key has been saved in /home/user_id/.ssh/id_rsa.pub.
The key fingerprint is:
XX:XX:XX:XX:XX:XX:XX:XX:XX user_id@hostnameblah
Leaving a passphrase empty is not good but if you have a private network for automated backup using rsync/ssh etc, then you want to leave this empty.
id_rsa is the private key. You need to copy it to the client machine from where you want to make an ssh… Continue reading
Incremental Backup using Rsync/SSH
The following sample script performs incremental backups using Rsync over SSH using public-private keys. The options used will help incremental backup along with synchronizing deleted files as well. So this is good to for mail synchronization since all deleted emails from system 1 are deleted from system 2 too.
/usr/bin/rsync -e ’ssh -i /keylocation/private_key -ax’ -vaH –delete SERVER1:/home/user1 /home/
/usr/bin/rsync -e ’ssh -i /keylocation/private_key -ax’ -vaH –delete SERVER1:/var/www /var/
/sbin/service mysqld stop
/usr/bin/rsync -e ’ssh -i /keylocation/private_key -ax’ -vaH –delete SERVER1:/var/lib/mysql /var/lib/
/sbin/service mysqld start… Continue reading