This simple bash script checks your current public IP and compares it to the previous days public IP (depending on cron job). Email alert is sent if IP has changed.

Credit goes to Ronny Bull – http://ronnybull.com/2011/08/10/bash-dynamic-public-ip-address-monitor-script/

Pre-req – install curl and postfix

apt-get install curl
apt-get install postfix

Bash script:

Install Samba:

apt-get install samba

Edit the samba config file:

vi /etc/samba/smb.cnf

Append the following to the bottom of the config file:

[Myshare]
comment = My Share
read only = no
locking = no
path = /home/share
guest ok = no
browsable = yes
writable = yes
valid users = @sharegroup

*path = path to the folder you are sharing
*@sharegroup – this is the user group which will be created below

Simple commands to insert a new Admin user into your WordPress database:

INSERT INTO `databasename`.`wp_users` (`ID`, `user_login`, `user_pass`, `user_nicename`, `user_email`, `user_url`, `user_registered`, `user_activation_key`, `user_status`, `display_name`) VALUES ('3', 'username', MD5('password'), 'Nice Name', 'test@yourdomain.com', 'http://www.test.com/', '2011-06-07 00:00:00', '', '0', 'Your Name');

INSERT INTO `databasename`.`wp_usermeta` (`umeta_id`, `user_id`, `meta_key`, `meta_value`) VALUES (NULL, '3', 'wp_capabilities', 'a:1:{s:13:"administrator";s:1:"1";}');

INSERT INTO `databasename`.`wp_usermeta` (`umeta_id`, `user_id`, `meta_key`, `meta_value`) VALUES (NULL, '3', 'wp_user_level', '10');

Notes:

3 – next free user id in wp_users table
username – username logging in with
password – password logging in with
Nice Name – name
test@yourdomain.com – email address
http://www.test.com/ – URL
2011-06-07 00:00:00 – sign-up date
Your name – display name

Last 2 INSERT commands give the user admin privileges. Remember to update ‘3’ to the user id you set in the first INSERT command.

Looking at a USB stick within disk management there is “unallocated space” on the drive. To fix:

Open Command prompt and type DISKPART > A new prompted will open.

Run the following commands (Windows :() to reclaim the unallocated space:

list disk

Disk ### Status Size Free Dyn Gpt
——– ————- ——- ——- — —
Disk 0 Online 298 GB 0 B
Disk 1 Online 7509 MB 6619 MB

select disk 1

clean

You should see the drive as not formatted within Disk Management at this stage.

create partition primary

exit

Open terminal within Ubuntu and type the following to find out where the harddrive to be formatted is located:

 
sudo fdisk -l 

Once located run the dd command with blocksize of 16M (for speed):

 
dd if=/dev/zero of=/dev/sda2 bs=16M 

That’s it. 2TB drive took roughly 6 hours.

Machine spec – 2.0GHz dual core, 2GB RAM.