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86%
High availability clustering on a budget with KVM
30.11.2025
Home »  Archive  »  2010  »  Issue 0: Active...  » 
Yulia Saponova, 123RF.com
Manager (CLVM) is used to mount the shared storage. Architecture The two physical cluster nodes in this article each have four network cards: eth0 through eth3 . The first (eth0 ), and third (eth2 ... 0
61%
Version 5.2 of the Ruby framework
16.08.2018
Home »  Archive  »  2018  »  Issue 46: CMS S...  » 
Lead Image © Author, 123RF.com
, but still a little too cumbersome to set up and use. At least for the latter group, Rails 5.2 (Figure 1) is a good thing: The developers abolished Secrets and replaced it with simpler credentials. Thus Ro ... Ruby on Rails 5.2 was released during RailsConf, which took place in Pittsburgh in mid-April 2018. Although not much has changed for old Rails applications, you'll find a few notable additions ... Version 5.2 of the Ruby framework
60%
Automating deployments on Proxmox with OpenTofu and cloud-init
04.12.2024
Home »  Articles  » 
Lead Image © lightwise, 123RF.com
Rubén Llorente ... [8] and, because of its popularity, is one of the options most people know. Unfortunately, the company developing it switched its licensing model away from the Mozilla Public License (MPL 2.0
60%
Discover the power of RouterBOARDS
25.09.2023
Home »  Archive  »  2023  »  Issue 77: Secur...  » 
Lead Image © andreysuslov, 123RF.com
Rubén Llorente ... is easy enough (superuser privileges are required): arp -s 192.168.90.55 00:0c:29:c1:91:b1 The last field of the command is the MAC address, which is the unique identifier of the network device to which
60%
Automating command execution across servers
01.06.2024
Home »  Archive  »  2024  »  Issue 81: Load...  » 
Photo by Adrian Hartanto on Unsplash
Rubén Llorente ... --refresh upgrade-minimal 32 elif [[ $S_TAGS = "openbsd" ]]; then 33 pkg_add -u 34 syspatch 35 MY_STATUS=${?} 36 if [[ $MY_STATUS -eq 0 || $MY
57%
Automated orchestration of a horizontally scalable build pipeline
15.02.2018
Home »  Archive  »  2018  »  Issue 44: Cloud...  » 
© Kittipong Jirasukhanont, 123RF
) Docker Swarm VirtualBox v5.2.6 r120293 (Qt5.6.1) Vagrant v2.0.1 Ansible v2.1.0.0 For readers who are unfamiliar with Jenkins, a tutorial is outside the scope ... 0 ... 0
57%
Tuning Ansible
09.05.2018
Home »  Archive  »  2018  »  Issue 45: Autom...  » 
in the main Ansible config file /etc/ansible/ansible.cfg . The line I changed (I am using Ansible version 2.0.0.2, so your defaults might be slightly different) went from #callback_whitelist = timer, mail ... 0 ... 0
57%
Infrastructure as Code with Terraform
20.06.2018
Home »  Archive  »  2018  »  Issue 46: CMS S...  » 
© fotolia.com
compatibility issues when it comes to different versions of Terraform, so for the sake of completeness, the versions I’m using are Terraform v0.11.7 and provider.aws v1.19.0. A very brief “Getting Started” run ... 0 ... 0
57%
A DIY HTML Engine
14.03.2018
Home »  Archive  »  2018  »  Issue 44: Cloud...  » 
© Luca Bertolli, 123RF.com
its journey with the first public release of 0.1 (Table 1). At that time, Jekyll lacked the charm of later iterations. Although major features were added in later point releases, the shot in the arm ... 0 ... 0
57%
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 ... 0 ... 0

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