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15.12.2016

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are over i = 2,n − 1 and j = 2,n −1. Here is how you can write the iteration over the domain using array notation: a(2:n-1,2:n-1) = 0.25 * & (a(1:n-2,2:n) + a(3:n,2:n) + a(2:n,1:n-2) + a(2:n,3:n

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CRI-O and Kubernetes Security

30.11.2020

Home » Archive » 2020 » Issue 60: Secur... »

cri-o-${CRIO_VERSION} The following NEW packages will be installed cri-o-1.17 0 to upgrade, 1 to newly install, 0 to remove and 0 not to upgrade. Need to get 17.3 MB of archives. After this operation

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Exploring Kubernetes with Minikube

11.09.2018

Home » Archive » 2018 » Issue 47: Findi... »

. Figure 6: Good old ``get pods'' but with width: ``kubectl get pod nginx-dep-54b9c79874-b9dzh -o wide'' showing an internal pod IP Address in the 172.17.0.0 range. Use the -n option to specify

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Automation Scripting with PHP

16.10.2012

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6), and start stream blocking (line 7), which executes the command and waits for the response. Now, write the output to a variable (lines 9-12), close the stream (line 14), and send the response

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Installing and operating the Graylog SIEM solution

13.12.2018

Home » Archive » 2018 » Issue 48: Secur... »

. The pwgen command generates a password and encrypts with sh256sum: pwgen -N 1 -s 100 echo -n | sha256sum The encrypted password is then assigned to the parameter root_password_sha2. Table 1 gives

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Guarding against social engineering attacks

01.08.2019

Home » Archive » 2019 » Issue 52: Stop... »

will be 2.2GB lighter. Figure 1: The download options with the SHA256 checksum to make sure it matches the reported checksum on the site. Be sure

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Network monitoring with Icinga and Raspberry Pi

17.02.2015

Home » Archive » 2015 » Issue 25: Safe... »

use generic-service 21 host_name w2k12srv 22 service_description Memory Usage 23 check_command check_nt!MEMUSE!-w 80 -c 90 24 } 25 define service{ 26

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OpenACC – Porting Code

07.03.2019

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Loops Fortran C !$acc parallel loop do i=1,n A(i) = B(i) + C(i) enddo !$acc parallel loop do j=1,m B(i) = B(i) * D(i) enddo #pragma

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Security first with the Hiawatha web server

11.04.2016

Home » Archive » 2016 » Issue 32: Measu... »

toolkit for joomla UrlToolkit { ToolkitID = joomla Match base64_encode[^(]*$[^)]*$ DenyAccess Match (<|%3C)([^s]*s)+cript.*(>|%3E) DenyAccess Match GLOBALS(=|\[|\%[0-9A-Z]{0,2}) Deny

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Sharing Linux Terminals

13.07.2022

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. Figure 5: Terminal after creating a new tmux window. To cycle through windows, press Ctrl+B-n (next), Ctrl+B-p (previous), or Ctrl+B-x (where x =0-9) to go to a specific window. If you type Ctrl

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