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43%
Questions about the present and future of OpenStack
28.11.2022
Home »  Archive  »  2022  »  Issue 72: OpenS...  » 
Photo by Julien DI MAJO on Unsplash
complexity is really a result of people mistakenly installing more than they actually need. AM: Any plans to make the upgrading process less complex and with less downtime? TC: :At this point, upgrading
43%
IT automation with SaltStack
30.05.2021
Home »  Archive  »  2021  »  Issue 63: Autom...  » 
Photo by Harry Cunningham on Unsplash
execution modules (e.g., the aforementioned logrotate module) in the background, which then do the actual work. States are usually defined in YAML format, but they can also be designed variably
43%
What's new in PostgreSQL 9.4
08.10.2015
Home »  Archive  »  2015  »  Issue 29: Rescu...  » 
Lead Image © Kheng Ho Toh, 123RF.com
transaction log information for SQL. These include the functions pg_logical_slot_get_changes() and pg_logical_slot_peek_changes(). The latter in fact does not actually consume decoded information but instead
43%
Business continuity management
03.12.2015
Home »  Archive  »  2015  »  Issue 30: OpenD...  » 
Lead Image © Andrea Danti, 123RF.com
data grows – and this can be a question of bandwidth. These features give admins several options: ASR does not actually understand the terms "primary" or "secondary" data center, which means that you
43%
Build secure IoT applications with open source
03.12.2015
Home »  Archive  »  2015  »  Issue 30: OpenD...  » 
Lead Image © Maksim Kabakou, 123RF.com
will want to authenticate and encrypt those communications. For that, you don't have a lot of options. The most popular approach is to use TLS and DTLS (TLS for UDP datagrams). Actually, most 8-bit processors
43%
Network virtualization with OpenDaylight
03.12.2015
Home »  Archive  »  2015  »  Issue 30: OpenD...  » 
Lead Image © Juthamas Oonhawat, 123RF.com
to find out whether buying new OpenFlow-capable devices to leverage the benefits of SDN is actually worthwhile. For the sake of completeness, I will point out that there are intermediate solutions in SDN
43%
Ansible as an alternative to the Puppet configuration tool
11.02.2016
Home »  Archive  »  2016  »  Issue 31: Tunin...  » 
Lead Image © Jenzig, photocase.com
original objectives and is trying to become a panacea for all ills at the data center. Whereas reducing complexity is the goal of automation, Puppet actually adds complexity. The proliferation of Puppet
43%
Manage logs with logrotate
05.12.2019
Home »  Archive  »  2019  »  Issue 54: NVMe...  » 
Lead Image © Vlad Kochelaevskiy, 123RF.com
option to execute a dry run to see what the utility would do when it's actually executed (Figure 2). Figure 2: The -d debug option spits out various useful
43%
Visualizing kernel scheduling
30.01.2020
Home »  Archive  »  2020  »  Issue 55: AWS L...  » 
Lead Image © 36clicks, 123RF.com
on US diplomacy and national security, as well as technology trends in cyberwarfare, cyberdefense, and cryptography. When not writing articles, Sam can be found in his "study" (actually a converted space
43%
Infrastructure as Code with Terraform
18.02.2018
Home »  Archive  »  2018  »  Issue 43: Real...  » 
Lead Image © Sebastian Duda, 123RF.com
displaying. This is especially important in production environments, because something can change between the input of the terraform plan command and the actual implementation of the infrastructure

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