Tails is an operating system based on Debian, and not just any please: it was notably used by Edward Snowden to escape the supervision of the NSA. This is a live distribution, which means that Tails is not installed on the computer, but booting from a DVD or USB drive. Advantage: it leaves no trace of its use, including RAM. Tails includes a series of anonymization tools and encryption. The internet through the anonymous network Tor or I2P. The web browser is Tor Browser, a modified version of Firefox. The disk encryption uses the LUKS and communications can be secured by the OpenPGP standard and OTR. The distribution is being developed, the techniques used should end up in other Linux systems.
Download Linux Tails
Tails, anonymous browser
If you have confidence in your network or in the box provided, you should be interested in PFSense. The modem-router operator sees in fact spend your entire domestic traffic, in addition to the Internet. PFSense settles usually on a dedicated machine and connected to the ADSL modem / cable set bridge (bridge). This is a firewall router highly evolved, with a rather successful web interface. TCP / IP networking concepts are useful to customize the configuration. We can extend the functionality with modules: online Anti-virus, parental control, etc.
Hackers prefer to attack the most common systems, it is simply more profitable! PC-BSD is quite far from the mainstream, which should keep him current threats. It is not even based on Linux but on FreeBSD, a system that has proven itself on the servers for over twenty years. Security is in the culture house. The critical updates are delivered in a short time. The firewall is enabled by default. The installation and handling are easy. Offices and many applications are common with Linux.
In current systems, which are both complex and low-cost, dormant faults are legion. Criminals have realized this and look for these zero-day as nuggets. Qubes designers are betting that their system will eventually be hacked. So they divided the system into watertight compartments virtual one for each context of use – work, surfing, etc. – And the corresponding storage space. The network is also isolated in a bubble. A hacker who would take control of part of Qubes remain confined there.
PC-BSD: security through rarity
Qubes: Linux compartmentalized
How about a custom OS?
Realize its own secure system, from a distribution that we love, is an interesting challenge. We started from Elementary OS that benefits from the Ubuntu software. To further reduce the attack surface of this minimal system was removed unused programs, helped by deborphan. Exit file sharing with Windows! Two settings are required: the automatic installation of security patches and firewall, with Firestarter. Privoxy also added to filter web traffic. The result is a reasonably secure Linux and always pleasant to use.
Download Elementary OS
Unless a system is widespread, the less vulnerable you say … I think after all these precautions, all this work to get the impression of being away, you will have bad surprises. You say it is thanks to these complications that someone has escaped one day at NSA: do not take them for fools, they have learned so beware!
It is good to remember that the tools used here is for experts, not for beginners who are advise Ubuntu MATE or Mint to begin.
BSD must already make it work.