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Security in Linux

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Linux
Security

Over the last few years, system security has gained a lot of momentum and software professionals are focusing heavily on this aspect. Linux is often treated as a highly secure operating system. However, the reality is that Linux too has its own share of security flaws. And these security flaws allow external hackers to get into your system and modify or even destroy your important data. But there’s no need to panic, since there are various mechanisms by which these flaws can be removed.

The security system is in two parts: authentication and access control. Authentication is responsible for ensuring that a user requesting access to the system is really the user with the account, while access control is responsible for controlling which resources each account has access to and what kind of access is permitted. Let’s take a look at the major causes for security problems in Linux…

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In-Development Software

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    Oracle released two new maintenance updates of its open-source and cross-platform virtualization software, VirtualBox 5.1.22 and VirtualBox 5.0.40, for all supported operating systems, including GNU/Linux, macOS, and Windows. Both VirtualBox 5.1.22 and VirtualBox 5.0.40 are bugfix releases that come about ten days after the launch of the previous updates, in this case VirtualBox 5.1.20 and VirtualBox 5.0.38. They include pretty much the same changes with small exceptions.
  • GNOME 3.25.1 Released
    GNOME 3.25.1 is now available as the first development milestone in the road to this September's GNOME 3.26.
  • ETSI announces the latest release of its Open Source MANO
    The ETSI Open Source MANO group (ETSI OSM) has announced OSM Release TWO. The standards body says this new release of its management and orchestration (MANO) work brings significant improvements in terms of interoperability, performance, stability, security and resources footprint to meet operators’ requirements for trials and upcoming RFx processes.

More Security Leftovers

  • HardenedLinux: The way to the Ark
    We’ve been sharing some of our works on security practices ( STIG-4-Debian, Debian GNU/Linux profiles, etc) for servers running in data center. PaX/Grsecurity is the corner stone to most of our solutions. Evidences have revealed that PaX/Grsecurity can defeat multiple public exploits w/o any patch fixes in critical scenarios for a long run. With PaX/Grsecurity, for the 1st time we believe that we can build the defense based on free/libre & open source software/firmware solution to prevent many threats from Ring 3/0/-1/-2/-3. HardenedLinux is going to continue develop solutions of defense based on PaX/Grsecurity. From our point of view, we see no other option. Please remember this date: Apr 26 2017. This is the day we lost our Ark.
  • It's Official: Ubuntu 12.04 LTS (Precise Pangolin) Linux OS Reached End of Life
    Canonical, through Adam Conrad, informed us today that the Ubuntu 12.04 LTS (Precise Pangolin) operating system is now officially dead, reaching end of life on April 28, 2017. If you're still using Ubuntu 12.04 LTS on your desktop or server systems, it's time to upgrade to a newer, supported release. You can choose to upgrade to either Ubuntu 14.04 LTS (Trusty Tahr), which will be supported for two more years, until April 2019, or Ubuntu 16.04 LTS (Xenial Xerus), supported until April 2021.

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