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Browsing Posts tagged Linux

Using Linux Kernel 4.15 to minimize Meltdown and Spectre

9 February 2018
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Reading Time: 5 minutesLinux Kernel 4.15 has been released on 28 Jan 2018 and, thanks to the entire Linux Kernel development team, this release contains the latest code to deal with Meltdown and Spectre issues and minize the related risks. The Kernel is the core code in the operating system managing low level tasks. In the update both vulnerabilities are explicitly addressed.And the interesting aspect is that the performance are not so bad! There are infact three instinct vulnerabilities identified, one Meltdown and two variations of Spectre (known as v1 and v2). Kernel 4.15 actually address only Meltdown and […]

vSecurity ,

Red Hat is acquiring CoreOS

31 January 2018
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Reading Time: 2 minutesRed Hat has announced that it has signed a definitive agreement to acquire CoreOS, an innovator and leader in Kubernetes and container-native solutions, for a purchase price of $250 million, subject to certain adjustments at closing that are not expected to be material. Red Hat and CoreOS’s relationship began many years ago as open source collaborators developing some of the key innovations in containers and distributed systems, making automated operations a reality.

RedHat, vProducts ,

Resize a Linux filesystem without LVM

27 January 2018
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Reading Time: 3 minutesIncrease a virtual machine disk size it’s so easy, on almost all hypervisor: just click and increase the space on the virtual disk. But it’s just one part of the game, the second part it does the same inside the virtual machine, and maybe it’s not so easy or fast increase the partition and the filesystem inside the related guest OS. For Windows OSes, starting with 2008 (Windows Server 2008 and Vista) it’s quite easy and totally manageable from the GUI (with the Disk Manager MMC). For Linux, it could be easy with LVM, but […]

General, Highlights

Microsoft PowerShell Core 6.0

12 January 2018
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Reading Time: 2 minutesPowerShell Core 6.0 is the new edition of the powerful Microsoft’s scripting language PowerShell. At the beginning, it was only for the latest version of Microsoft Windows operating systems, but in the last year has finally become cross-platform (Windows, macOS, and Linux), open-source, and built for heterogeneous environments and the hybrid cloud. PowerShell Core uses .NET Core 2.0 as its runtime, that enables PowerShell Core to work on multiple platforms (Windows, macOS, and Linux). PowerShell Core also exposes the API set offered by .NET Core 2.0 to be used in PowerShell cmdlets and scripts. Windows PowerShell used the […]

Microsoft ,

Veeam Agent for Linux is in GA

13 December 2016
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Reading Time: < 1 minuteVeeam Agent is the new brand name of the Veeam Endpoint (as announced in August event). After some betas (last was in September) the Veeam Agent for Linux 1.0 is in finally in GA! Veeam Agent for Linux is a simple backup and powerful recovery tool designed to ensure the Availability of your customers’ Linux servers anywhere — in the cloud, on physical or virtual servers, or endpoints.

Veeam ,

New Linux kernel vulnerability

24 October 2016
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Reading Time: 2 minutesDirty COW (CVE-2016-5195) is a privilege escalation vulnerability in the Linux Kernel. The bug has existed since around 2.6.22 (released in 2007) and was fixed on Oct 18, 2016. “A race condition was found in the way the Linux kernel’s memory subsystem handled the copy-on-write (COW) breakage of private read-only memory mappings. An unprivileged local user could use this flaw to gain write access to otherwise read-only memory mappings and thus increase their privileges on the system.” (RH)

General ,

Add deduplication and compression to an Linux server

12 September 2016
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Reading Time: 2 minutesAlthough Linux is used in several storage solutions, the native filesystems lack of modern features like deduplication or compression (compression extented attribute is present from some decade, but it’s implementions is still limited or missing). Most storage solutions use other filesystem (like ZFS), or also other operating systems: FreeBSD, NetBSD, OpenSolaris branches, or also Windows Server (like DataCore). Now Permabit Technology Corporation announced the availability of its Albireo Virtual Data Optimizer (VDO) for Canonical’s Ubuntu Server.

Highlights, vStorage
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