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12%
DiffServ service classes for network QoS
04.08.2020
Home »  Archive  »  2020  »  Issue 58: Graph...  » 
Lead Image © Elgris, Fotolia.com
4 Low drop AF11 = 10 (001010) AF21 = 18 (010010) AF31 = 26 (011010) AF41 = 34 (100010) Medium drop AF12 = 12 (001100) AF22 = 20 (010100
12%
A Container for HPC
15.08.2016
Home »  Archive  »  2016  »  Issue 34: Softw...  » 
Lead Image © orson, 123RF.com
Scientific Computing Center (NERSC) [11]. Shifter is a prototype implementation of a container system for HPC that converts images from Docker, VMs, or CHOS [12] (a utility that creates a Scientific Linux
12%
Network access control with Cisco's Identity Services Engine
07.04.2022
Home »  Archive  »  2022  »  Issue 68: Autom...  » 
Photo by Keith Hardy on Unsplash
for network components. Introduced in version 2.0, this licensed function, known as Device Administration, provides a way of structuring a very granular authorizations and role concept. Command sets can
12%
Port Knocking
07.10.2014
Home »  Archive  »  2014  »  Issue 23: 10 Ti...  » 
Lead Image © rasslava, 123RF.com
to its GPRS and 3G customers, this approach opened up our servers to many more IP addresses than in our old system, with its 10 or 20 authorized IP addresses at the company offices and at the homes
12%
Two-Factor Authentication
02.04.2013
Home »  Articles  » 
 
Authenticator Project is released under the Apache License 2.0 and is freely available. A PAM module is available for the server; the Google Authenticator client runs on Android, iOS, and BlackBerry devices
12%
Kolab iRony with CalDAV and CardDAV support
11.06.2014
Home »  Archive  »  2014  »  Issue 21: Manag...  » 
Lead Image © Pablo Hidalgo, 123RF.com
installation of Kolab 3.0 and later is a matter of one or two cups of coffee and does not impose too many requirements on the admin. The Kolab developers recommend a recent CentOS (preferably 6.4) as the basis
12%
Use PowerShell to manage Exchange Online
25.03.2020
Home »  Archive  »  2020  »  Issue 56: Secur...  » 
Lead Image © reddogs, 123RF.com
independent, and PowerShell 6.0 will become the standard version for new Windows systems. PowerShell Core 6.x can be installed on Windows clients as well as servers running Windows Server 2008 R2 or later
12%
Red Hat Enterprise Linux 8 pre-series test
07.06.2019
Home »  Archive  »  2019  »  Issue 51: Self-...  » 
Lead Image Photo by Filip Mroz on Unsplash
release, however, it will already be a couple of months old; Linux 5.0 will have been available for a long time by then. The problem is that RHEL 8 will not see a major update of a new kernel throughout
12%
Useful tools for automating network devices
11.10.2016
Home »  Archive  »  2016  »  Issue 35: Persi...  » 
© Sila Nimkittikul, 123RF.com
functionality can be achieved with 20% of the code. Or to put this another way: NetBox does not offer every single function that may be desirable in the IPAM and DCIM context. Instead of PostgreSQL, an already
12%
Efficiently planning and expanding the capacities of a cloud
02.03.2018
Home »  Archive  »  2018  »  Issue 44: Cloud...  » 
Lead Image © digifuture, 123RF.com
on to its customers. If you assume the ratio of CPU to RAM provided through corresponding hardware profiles is 1:4, a customer using 12 virtual CPU cores must add at least 48GB of memory. If five

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