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17%
A self-healing VM system
07.06.2019
Home »  Archive  »  2019  »  Issue 51: Self-...  » 
Lead Image © THISSATAN KOTIRAT , 123RF.com
with timeout 15 seconds 03 if status != 0 for 3 cycles then exec "/usr/bin/ansible-playbook rebuild_node.yml" 04 if status != 0 for 3 cycles then exec "/usr/bin/mail -s 'Node 5 ping failed
17%
Automatically install and configure systems
01.08.2019
Home »  Archive  »  2019  »  Issue 52: Stop...  » 
Lead Image © maroti, 123RF.com
no one would have ever dreamed would progress to preseeding and automatic installation. Anyone who managed to install Debian 2.2, alias Potato, or 3.0, alias Woody, on their hard drives were more likely
17%
Guarding against social engineering attacks
01.08.2019
Home »  Archive  »  2019  »  Issue 52: Stop...  » 
Photo by Benjamin Sow on Unsplash
, the current version was 5.3, so you might see options or menus different from those I discuss here if you work on a different version. BackBox Linux includes the familiar and slick Xfce desktop manager [3
17%
Arm yourself against cloud attacks
06.10.2019
Home »  Archive  »  2019  »  Issue 53: Secur...  » 
Lead Image © sandra zuerlein, Fotolia.com
the context of the organization" [2] may be familiar to many people from their own business experience. SOC2 C5 [3] from the German Federal Office for Information Security (BSI) also demonstrates fundamental
17%
Swagger and OpenAPI Specification for documents
15.08.2016
Home »  Archive  »  2016  »  Issue 34: Softw...  » 
Lead Image © smeagorl, 123RF.com
) for client programs on request. Division of Responsibilities What initially sounds complicated proves to be remarkably simple in practice [3]. First, the developer describes the feature set of their REST API
17%
Let the hardware do the heavy lifting
09.06.2018
Home »  Archive  »  2018  »  Issue 45: Autom...  » 
Photo by Victor Freitas on Unsplash
(handshake, alert, CCS, or application data) (Figure 3). After symmetric keys are programmed, inline TLS functionality is enabled; henceforth, the TLS layer bypasses all crypto operations, and plain text
17%
Ceph object store innovations
13.06.2016
Home »  Archive  »  2016  »  Issue 33: IPv6...  » 
Lead Image © Max, fotolia.com
). Figure 1: For CephFS to work, the cluster needs MONs and OSDs, plus a MDS. They developers beefed up the server in Ceph v10.2.0 (Jewel). Under the hood, access to Ceph storage via CephFS works almost
17%
Getting a free TLS certificate from Let's Encrypt
13.06.2016
Home »  Archive  »  2016  »  Issue 33: IPv6...  » 
Lead Image © Stuart Miles, 123RF.com
information [2]. You can use Let's Encrypt for any website regardless of the web server. For my home-grown sites, I use one ESXI VMware server and deploy pre-installed virtual machines using TurnKey Linux [3
17%
Managing Linux Filesystems
13.06.2016
Home »  Archive  »  2016  »  Issue 33: IPv6...  » 
Lead Image © Ulrich Krellner, 123RF.com
Standard Filesystems Distribution Filesystem Debian (from v7.0 wheezy) ext4 Ubuntu (from v9.04) ext4 Fedora (from v22) XFS SLES (from v12
17%
Build storage pools with GlusterFS
15.08.2016
Home »  Archive  »  2016  »  Issue 34: Softw...  » 
Lead Image © jala, Fotolia.com
. Figure 1: Client systems access the desired GlusterFS volume via a single namespace. (Red Hat CC BY-SA 3.0 [1]) When you look under the hood of GlusterFS, it is striking that the filesystem

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