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22%
Understanding the Spanning Tree protocol family
17.06.2017
Home »  Archive  »  2017  »  Issue 39: Conta...  » 
Lead Image © Joellen Armstrong, Fotolia.com
to the instance. For example, for the network in Figure 5, VLAN 101 to 150 can be grouped into instance 1 and VLAN 151 to 200 can be grouped into instance 2 (Figure 6). The total number of network topologies
22%
MySQL is gearing up with its own high-availability Group Replication solution
17.06.2017
Home »  Archive  »  2017  »  Issue 39: Conta...  » 
Lead Image © lassedesignen, 123RF.com
is not supported. Moreover, it is imperative for each table to have a primary key. Surprisingly, IPv6 is still lacking – in 2017! Currently, network communication between the replicating nodes relies on IPv4
22%
Goodbye virtual machines, hello container machines
07.04.2022
Home »  Archive  »  2022  »  Issue 68: Autom...  » 
Photo by Erik Odiin on Unsplash
cluster with Figure 5: Accessing a container machine and running a command. footloose delete (Figure 6). You should feel comfortable now creating
22%
Goodbye cloud VMs, hello laptop VMs
20.06.2022
Home »  Archive  »  2022  »  Issue 69: Terra...  » 
Lead Image © Liubomyr Feshchyn, 123rf.com
://github.com/richnusgeeks/devops.git pushd CloudInABox/Multipass/scripts You could use cd instead of pushd, but I prefer the latter for its intelligence. The wrapper script execution should display a help screen (Figure 6
22%
PowerDNS Authoritative server high availability with MariaDB Galera
02.08.2022
Home »  Archive  »  2022  »  Issue 70: Defen...  » 
Lead Image © Sergey Nivens, 123RF.com
) NOT NULL, 06 master VARCHAR(128) DEFAULT NULL, 07 last_check INT DEFAULT NULL, 08 type VARCHAR(6) NOT NULL, 09 notified_serial INT UNSIGNED DEFAULT
22%
Linux Storage Stack
11.02.2016
Home »  Archive  »  2016  »  Issue 31: Tunin...  » 
Lead Image © arsgera, 123RF.com
.e., the anticipatory scheduler, or AS) was similar to CFQ and was therefore removed in kernel version 2.6.33. Via the Linux multiqueue block I/O queuing mechanism (blk-mq ). Introduced with Linux kernel 3.13, blk
22%
Better compression of web pages
22.12.2017
Home »  Archive  »  2017  »  Issue 42: Secur...  » 
if TLS connections (SSL) are used. Fortunately, the free Let's Encrypt [6] certification service makes light work of configuring SSL on the web server [7]. Install the Let's Encrypt client on Debian
22%
Selecting compilers for a supercomputer
18.02.2018
Home »  Archive  »  2018  »  Issue 43: Real...  » 
Lead Image Photo by Michal Kmet on Unsplash
with approximately 8,200 cores each, and six newer islands with 14,300 cores each. It achieves a speed of around 6 petaFLOPS (10^15 floating-point operations per second). In total, almost 500TB of main memory
22%
Shifting Drupal to Amazon's cloud
09.04.2019
Home »  Archive  »  2019  »  Issue 50: Bpfilter  » 
Lead Image © Devaev Dmitry, 123RF.com
and load the updated application in the cloned environment. Then perform a test and choose the URLs in Actions | Swap Environment URLs (Figure 6). Figure 6
22%
Scale Your Docker Containers with Docker Swarm
07.06.2019
Home »  Archive  »  2019  »  Issue 51: Self-...  » 
Lead Image © Author, 123RF.com
should now see that the webserver service is running on port 80 (Figure 6). Figure 6: The service is good to go. Scaling Your Service At the moment

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