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MPI Apps with Singularity and Docker

18.03.2020

Home » HPC » Articles »

2 hours ago 9.83GB 49cbd14ae32f 3 hours ago 269MB ubuntu 18.04 72300a873c2c 3 weeks ago 64.2MB

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Profiling Python Code

09.12.2019

Home » HPC » Articles »

to check follows a, b = 1,2 c = a + b # Code to check ends end_time = time.time() time_taken = (end_time- start_time) print(" Time taken in seconds: {0} s").format(time_taken_in_micro) If a section of code

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Manage logical volumes with GUI tools

09.10.2017

Home » Archive » 2017 » Issue 41: Kuber... »

of physical and logical volumes that can join the group – 256 is the default. Also specify the size of the individual memory cells here; this defaults to 4MB per unit (Figure 3). The new group, which you can

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Migrating CentOS to Rocky Linux with migrate2rocky

06.10.2022

Home » Archive » 2022 » Issue 71: Kuber... »

in this article [4] supports upgrades from CentOS 8, and another script called migrate2rocky9.sh supports RHEL 9-based distributions. If you are still using CentOS 7, the recommended solution is to set up a new

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Infrastructure as Code with Terraform

18.02.2018

Home » Archive » 2018 » Issue 43: Real... »

public_key = "${file("${var.ssh_pub_key}")}" 07 } 08 resource "digitalocean_droplet" "mywebapp" { 09 image = "docker-16-04" 10 name: guest 11 region = "fra1" 12 size = "512mb" 13 ssh

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Setting up SSL connections on Apache 2

18.07.2013

Home » Archive » 2013 » Issue 15: What’... »

; Apache has supported the method since version 2.2.12 – provided you have OpenSSL version 0.9.8i or newer in use. If this is true of your own Apache installation, you can provide your own certificate in any

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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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Acquiring a Memory Image

20.05.2014

Home » Archive » 2014 » Issue 20: IPv6... »

a hash of the input and also of any outputs (specified using hof=, hofs=, phod=, or fhod=. ALGORITHM options include md5, sha1, sha256, or sha512. hashlog=FILE – Log total hashes and piecewise hashes

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Kubernetes k3s lightweight distro

25.03.2020

Home » Archive » 2020 » Issue 56: Secur... »

Lead Image Photo by Josh Rakower on Unsplash

, according to the README file, requires "half the memory, all in a binary less than 40MB" to run. By design, it is authored with a healthy degree of foresight by the people at Rancher [3]. The GitHub page [4

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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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