The cost of Aurora hosting per hour.

db.r3.large $0.290 (0.24 mysql)
db.r3.xlarge $0.580 (0.475 mysql)
db.r3.2xlarge $1.160 (0.945 mysql)
db.r3.4xlarge $2.320 (1.89 mysql)
db.r3.8xlarge $4.640 (3.78 mysql)

Mysql hosting starts with db.t2.micro at only $0.017 per hour.

It is possible to use password to connect to AWS

1) change config file
sudo vi /etc/ssh/sshd_config

PermitRootLogin yes
PasswordAuthentication yes

2) restart
sudo service ssh restart

3) add a password
sudo passwd root

4) ssh without key
ssh root@xxx.com

Steps to install innobackupex on Ubuntu:

$ apt-key adv --keyserver keys.gnupg.net --recv-keys 1C4CBDCDCD2EFD2A

Add this to /etc/apt/sources.list, replacing VERSION precise with the name of your distribution:

deb http://repo.percona.com/apt precise main
deb-src http://repo.percona.com/apt precise main

Remember to update the local cache:
$ apt-get update

Now you can install Percona XtraBackup with:
$ apt-get install percona-xtrabackup

BACKUP

innobackupex --user=USERNAME --password=PASSWORD --no-timestamp /data/backups/new_backup <--(PATH OF BACKUP)
innobackupex --apply-log /data/backups/new_backup

RESTORE

service mysql stop
mkdir /tmp/mysql
mv /var/lib/mysql/* /tmp/mysql/
innobackupex --copy-back /data/backups/new_backup <--(PATH OF BACKUP WHERE IS STORED)
chown -R mysql: /var/lib/mysql
service mysql start

Getting the shell script:
wget https://launchpadlibrarian.net/78745738/tuning-primer.sh

Running:
sh tuning-primer.sh

Here are simple steps to convert a rpm package to deb package and install.

sudo apt-get install alien

wget http://tinyurl.com/ptvn89k

sudo alien ibus-typing-booster-1.2.3-4.el7.noarch.rpm

sudo dpkg -i ibus-typing-booster_1.2.3-5_all.deb

Upgrade from 14.04 to 15.04 is a 2 step journey.

sudo nano /etc/update-manager/release-upgrades
change the value to normal

And then use this command twice!
sudo do-release-upgrade

You can check your ubuntu version:

lsb_release -a
Description: Ubuntu 15.04

Here is how to install Libre office on centOS

64 bit
wget http://download.documentfoundation.org/libreoffice/stable/4.4.4/rpm/x86_64/LibreOffice_4.4.4_Linux_x86-64_rpm.tar.gz

32 bit
wget http://download.documentfoundation.org/libreoffice/stable/4.4.4/rpm/x86/LibreOffice_4.4.4_Linux_x86_rpm.tar.gz

tar xvf LibreOffice_4.4.4_Linux_x86_rpm.tar.gz

rpm -Uvh LibreOffice_4.4.4.3_Linux_x86_rpm/RPMS/*.rpm

Here is how you can open and copy files from an iso image.

mkdir /mnt/iso
mount -t iso9660 -o loop /root/Downloads/ubuntu-15.04-desktop-i386.iso /mnt/iso/

ls /mnt/iso/

You can try a software called typing booster on Fedora. It helps user while typing. User can avoid typing mistakes and also avoid typing long spellings. If you are on fedora or centOS use the following command:

yum install ibus-typing-booster -y

I hope this package is made available for debian as well.