Wednesday, December 1, 2010

Hindi FM Live Radio Internet Streaming Online

More List of Hindi Internet Radio Stations Online

Bare Metal Recovery Solution Mondo Backup

Here's an interesting alternative to using CloneZilla and the likes for Bare Metal Recovery:

Mondo Rescue is a free (GPL) powerful disaster recovery suite for Linux (i386, x86_64, ia64) and FreeBSD (i386). It's packaged for multiple distributions (RedHat, RHEL, SuSE, SLES, Mandriva, Debian, Gentoo). It's basically the Linux equivalent of the powerful AIX mkcd / mkdvd.

It supports backups to tapes, disks, network and CD/DVD. It also supports multiple filesystems (ext2, ext3, JFS, XFS, ResierFS, VFAT and even NTFS), LVM, software and hardware Raid.

Example of using Mondo Rescue:

Generate a bootable DVD that also backs up /etc and can recover files running mondorestore:
# mondoarchive -OVr -d /dev/dvd -9 -I /etc -gF
Another interesting tool worth checking out is System Imager (automates Linux installs).

Tuesday, November 30, 2010

Configuring Sendmail RedHat /CentOS/Fedora

Configuring it is very simple. First you'll need the sendmail-cf package. Install it using yum:
[root@mail-server ~]# yum install sendmail-cf
Edit the file /etc/mail/sendmail.mc and add the following lines. Make sure you set your mail server domain name where it's bolded:
MASQUERADE_AS(yourdomain.com)dnl
MASQUERADE_DOMAIN(yourdomain.com)dnl
In the same file /etc/mail/sendmail.mc remove the "dnl" from the beginning of the lines so it will look like this:
LOCAL_DOMAIN(`localhost.localdomain')dnl
FEATURE(masquerade_envelope)dnl
FEATURE(masquerade_entire_domain)dnl
Save the file and compile it using m4:
[root@mail-server ~]# m4 /etc/mail/sendmail.mc > /etc/sendmail.cf
Send Sendmail a -HUP signal using kill or simply restart the daemon for the configuration changes to take effect:
[root@mail-server ~]# service sendmail restart

Testing your configuration using sendmail

And that's it! you're done. Just send yourself a test email to make sure it is really working:
[root@mail-server ~]# /usr/sbin/sendmail -t < mail.txt
Where the contents of the mail.txt file are:
Date: Wed Dec 1 08:41:54 2010
To: you@somewhere.com
Subject: The subject of the message
From: whatever@somewhere.com
Body of message goes here

Testing your configuration using mutt

You can also use mutt to test, which is a bit simpler (and you can also add the -a parameter for file attachment):
[root@mail-server ~]# mutt -s "Test Email" you@somewhere.com < /dev/null

Tuesday, November 23, 2010

Creating an ISO from a DVD MAC

From within Terminal (Applications->Utilities->Terminal)


You can determine the device that is you CD/DVD drive using the following command:

drutil status




Vendor   Product           Rev 
 MATSHITA DVD-R   UJ-875    DB09


           Type: DVD-R                Name: /dev/disk1
       Sessions: 1                  Tracks: 1 
   Overwritable:   00:00:00         blocks:        0 /   0.00MB /   0.00MiB
     Space Free:   00:00:00         blocks:        0 /   0.00MB /   0.00MiB
     Space Used:  425:20:48         blocks:  1914048 /   3.92GB /   3.65GiB
    Writability: 
      Book Type: DVD-R (v5)
       Media ID: SONY16D1
Now you will need to umount the disk with the following command:

diskutil unmountDisk disk1

Now you can write the ISO file with the dd utility:

dd if=/dev/disk1 of=dvd.iso

When finished you will want to remount the disk:

diskutil mountDisk disk1