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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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Let the editor wars begin!

11.10.2016

Home » Archive » 2016 » Issue 35: Persi... »

. For example, you can run the command: : s/XXX/YYY/g This commands substitutes the string XXX for the string YYY, normally for the current line. However, in this case, it does it for the entire file because

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OpenVPN with e-tokens in large-scale environments

30.11.2025

Home » Archive » 2011 » Issue 5: Pen Te... »

depends on the liblzo2-2, libpkcs11-helper1, openssl-blacklist, and openvpn-blacklist packages. The next step is to set up your own Public Key Infrastructure (PKI). OpenVPN provides a software tool

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Web applications with Julia

26.01.2025

Home » Archive » 2025 » Issue 85: Monit... »

examples created a slider in the Pluto notebook (Figure 3) with @bind x Slider(1:10) In HTML, the closest equivalent is: However, the two examples

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Speed up Your Name Server with a MySQL Back End

23.07.2013

Home » Articles »

be IP addresses to much more humanly digestible addresses. Thankfully, we no longer live in the early days of the Arpanet (precursor to today’s Internet), where we had to transfer large host files from

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OpenACC – Porting Code

07.03.2019

Home » HPC » Articles »

relative to the data values. For example, if the difference between two numbers is 100.0, but you are working with values of 10^8, then the difference (0.001%) might not be important. It’s really up

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Creating KVM machines with BoxGrinder and VMBuilder

31.10.2025

Home » Archive » 2012 » Issue 12: NAS S... »

Service (Amazon S3) 19 - ami plugin for Amazon Simple Storage Service (Amazon S3) 20 - sftp plugin for SSH File Transfer Protocol 21 - ebs plugin for Elastic Block Storage 22 - local plugin

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Configuration management with Chef

30.11.2025

Home » Archive » 2010 » Issue 1: System... »

18 validation_client_name "validator" 19 validation_key "/etc/chef/validation.pem" 20 client_key "/etc/chef/client.pem" 21 web_ui_client_name "chef-webui" 22 web

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HPCCM with Docker and Podman

09.09.2024

Home » HPC » Articles »

to maintain than a long specification file, and because it’s Python, you can use any Python code or tools as part of the recipe. The recipe uses “building blocks” for capabilities such as compilers, libraries

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Zuul 3, a modern solution for CI/CD

05.12.2019

Home » Archive » 2019 » Issue 54: NVMe... »

and supports a number of development platforms, like GitHub and Gerrit Code Review [6]. Zuul originated as OpenStack CI testing. For years, OpenStack, the Infrastructure-as-a-Service (IaaS) cloud [7], got all

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