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46%
Update your Docker containers safely
07.06.2019
Home »  Archive  »  2019  »  Issue 51: Self-...  » 
Lead Image © yelenayemchuk, 123RF.com
version 10.4 to version 12.3. A safe version range, then, would be to stay within version 10.4. Of course, it's entirely up to you what risks to take and what you consider a safe version range. To update
46%
Network monitoring with Icinga and Raspberry Pi
17.02.2015
Home »  Archive  »  2015  »  Issue 25: Safe...  » 
Lead Image © AndreaDanti, 123RF.com
generic-service 21 host_name ubuntusrv 22 service_description Current Users 23 check_command check_nrpe!check_users!20!50 24 } 25 26 define ... 25
46%
Operating systems for the cloud and containers
14.08.2017
Home »  Archive  »  2017  »  Issue 40: Lean...  » 
Lead Image © leeavison, 123RF.com
to manage them disappeared. Container Linux ruthlessly replaces the entire /usr directory instead of individual files (Figure 3). The main work is handled by Linux containers à la Docker [20], or Rkt [21
46%
Manage OpenVPN keys with Easy-RSA
06.10.2019
Home »  Archive  »  2019  »  Issue 53: Secur...  » 
Lead Image © Orlando Rosu, 123rf.com
in the background with command lines like that shown in Listing 1. Listing 1 OpenSSL from Hell openssl x509 -req -CA ca.crt -CAkey ca.key -set_serial 0x$(openssl rand -hex 16) -days 3650
46%
SDS configuration and performance
13.02.2017
Home »  Archive  »  2017  »  Issue 37: Distr...  » 
Lead Image © Jakub Jirsak, 123RF.com
File server 1 Intel Xeon X5667 with 3GHz and 16 cores 16GB Disk array T6100S with 10 Hitachi drives (7200rpm) configured as RAID 1 File server 2 Intel Core i3
45%
Distributed storage with Sheepdog
07.10.2014
Home »  Archive  »  2014  »  Issue 23: 10 Ti...  » 
Lead Image © kateleigh, 123RF.com
Kazutaka Morita launched the Sheepdog project [1] in 2009. The primary driver was the lack of an open source implementation of a cloud-enabled storage solution – as a kind of counterpart to Amazon
45%
Secure remote access and web applications with two-factor authentication
16.05.2013
Home »  Archive  »  2013  »  Issue 14: Samba 4  » 
© maigi, 123rf.com
, one-time passwords, or both. Certificate-based two-factor authentication typically uses digital PKI certificates based on the X.509 standard. These are typically stored on a hardware certificate storage
45%
Processor and Memory Metrics
12.02.2014
Home »  HPC  »  Articles  » 
provides cross-platform CPU, memory, disk, and network statistics. Currently it supports Linux, Windows, OS X, FreeBSD, and Solaris for both 32- and 64-bit systems. The library has a very useful Python
45%
WiFi 6 in the Enterprise
02.06.2020
Home »  Archive  »  2020  »  Issue 57: Artif...  » 
Lead Image © Daniel Schönen, photocase.com
802.11ax Year of publication 1999 1999 2003 2009 2013 2020 Frequency (GHz) 2.4 5 2.4 2.4 and 5 5 2
45%
Keeping Docker containers safe
13.02.2017
Home »  Archive  »  2017  »  Issue 37: Distr...  » 
Lead Image © Irina Tischenko, 123RF.com
of your development life cycle. Containers are far from being a new addition to server hosting. I was using Linux containers (OpenVZ) in production in 2009 and automatically backing up container images

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