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25%
Understanding the Spanning Tree protocol family
17.06.2017
Home »  Archive  »  2017  »  Issue 39: Conta...  » 
Lead Image © Joellen Armstrong, Fotolia.com
10 root primary SW2(config)#spanning-tree vlan 20 root primary SW3(config)#interface fastEthernet 0/1 SW3(config-if)#spanning-tree vlan 20 cost 999 SW3(config-if)#interface fastEthernet 0/2 SW3(config
25%
Creating load for fun and profit
22.05.2023
Home »  Archive  »  2023  »  Issue 75: Teamwork  » 
Lead Image © Lucy Baldwin, 123RF.com
to maxing out a core with 100 percent load. For example, stress-ng -t 1m -c 0 -l 40 will burden all cores in the system (-c 0) with a 40 percent load (Figure 4). Loading all cores to 40 percent is something
25%
System temperature as a dimension  of  performance
28.11.2022
Home »  Archive  »  2022  »  Issue 72: OpenS...  » 
Lead Image © Lucy Baldwin, 123RF.com
of alternative sources. Listing 1 sensors Output federico@ferenginar:~$ sensors k10temp-pci-00c3 Adapter: PCI adapter temp1: +42.5¡C (high = +70.0¡C) (crit = +100.0¡C
25%
Scalable mail storage with Dovecot and Amazon S3
10.04.2015
Home »  Archive  »  2015  »  Issue 26: OpenS...  » 
Lead Image © Vlad Kochelaevskiy, Fotolia.com
to send their 20MB PowerPoint presentations by email. Moreover, the number of email users is still growing steadily, and the amount of data stored by all of a provider's users is growing proportionally
25%
HTTP/1.1 versus HTTP/2 and HTTP/3
30.05.2021
Home »  Archive  »  2021  »  Issue 63: Autom...  » 
Lead Image © alphaspirit, 123RF.com
by the image with the previously announced size of 32,768 bytes. Listing 1 Opening a Page GET /trainings HTTP/1.1 Host: www.it-administrator.de User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64
25%
Verifying your configuration
05.02.2023
Home »  Archive  »  2023  »  Issue 73: Datab...  » 
Lead Image © Kritiya Sumpun, 123RF.com
: consist-of: ["127.0.0.1","::1"] timeout: 500 # in milliseconds EOF } main() { preReq instlGoss cnfgrGoss } main 2>&1 Now you have a base image with the goss binary and its test configuration
25%
From debugging to exploiting
17.02.2015
Home »  Archive  »  2015  »  Issue 25: Safe...  » 
Lead Image © Maksim Kabou, 123RF.com
can refer to the entire process environment by means of the **environ variable; therefore: (gdb) p &environ $4 = ( *) 0xf7f83d64 (gdb) x/100s *environ 0xffffc815
25%
File Integrity Checks with AIDE
04.12.2024
Home »  Archive  »  2024  »  Issue 84: Non-R...  » 
Lead Image © rudall30, 123RF.com
. Further details for each change follow this summary. If you automate the use of AIDE, you will definitely need to evaluate the program's return values. Like (virtually) any application, a return value of 0
25%
Programming with OpenMP
07.11.2011
Home »  HPC  »  Articles  » 
. Figure 1: By default, top shows the total load for all CPUs … The program seems to be using 100 percent of the CPU. But appearances can be deceptive: The computer’s actual load is just 60 percent
25%
Link Encryption with MACsec
28.11.2023
Home »  Archive  »  2023  »  Issue 78: Domai...  » 
Lead Image © Oleksandr Omelchenko, 123RF.com
with an Ethertype of 0x88e5 on the provider's network. Because MACsec works on Layer 2, it must be individually enabled for each interface. Encryption Method MACsec uses AES-GCM as the encryption algorithm

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