A presentation about Backup for Security class. Fabienne and Nicolai.

1. BACKUP
Fabienne & Nicolai

2. How make a backup?
It all depends on the type of confidentiality the company is going to have.
Also the data for the company should be evaluated.
Firstly, what is the risk? what will happen if the data gets out.
Secondly, in what way should we take precaution digital or physical?
Thirdly , after selection, finding hardware which gets the job done can be a
bit tricky because there is so many opportunities out there on the web, so
which ones are really working for the prize.
“There is no castle so strong that it cannot be overthrown by money." — Cicero

3. Security Mindset
- logical thinking,
(doors, locks, alarms, video cameras, access cards, etc…)
- company facility, water damage, fire, smoke, etc
- Electrical Power, backup, fire alarm, alternative feeders, maintenance
plan,
Planning, Renovation, and Implement Physical and Environmental controls
for security systems
Educate your users
“Don't sweat it -- it's not real life. It's only ones and zeroes.”,1998

4. 3 Differents types of backup
It backs up all files that have
INCREMENTAL changed since the last backup that
was made of them.
Is backing up files that have
DIFFERENTIAL changed since the last backup was
total.
It makes copies of all selected files
FULL have changed or not, since he took
the last backup.
“We have only two modes - complacency and panic” — James R. Schlesinger

5. Backup scheme

6. GFS Scheme
Grand Father Son

7. GFS Scheme
Grand Father Son
The rotation GFS strategy is based on a schedule 7 days.
INCREMENTAL Every Day
FULL One day in the week
For example all Fridays
FULL One day in the month
For example all 30th
“We will bankrupt ourselves in the vain search for absolute security.” — Dwight D. Eisenhower

8. GFS Scheme
Grand Father Son
Why is this good?

9. GFS Scheme
Grand Father Son
Why is this good?
CHEAP Incremental backups require less
disk, tape or network drive space.
EASY In case you need to
restore files are easily restored from
the backup set only.
PRATICAL You can keep multiple versions of the
same files in different backup sets.
When you know that you're capable of dealing with whatever comes, you have the only security the world has to offer." — Harry Browne

10. Minor Media Company
INCREMENTAL Every Day
FULL One day in the week
For example all Fridays
— 4 Full backups in the month