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Monitoring network computers with the Icinga Nagios fork
17.06.2011
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_notification_commands notify-host-by-email service_notification_commands notify-service-by-email email root@localhost } Icinga can use macros
15%
Test your containers with the Docker Desktop one-node cluster
25.09.2023
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Photo by Alex Kondratiev on Unsplash
application stack consisting of an Nginx reverse proxy, a Python Flask web application, and a Redis database. In the root directory of your project (let's call it my-app), create two folders: nginx and webapp
15%
Production-ready mini-Kubernetes installations
27.09.2024
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Lead Image © Goran Bogicevic, Fotolia.com
of installation, both K3s and k0s deserve an admonishment. The principle of loading a shell script from the network with curl and using sudo to execute it directly as root on the target host naturally causes any
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Kick-start your AI projects with Kubeflow
26.01.2025
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Lead Image © austler, 123RF.com
.yaml, although it is largely empty by default. You need to modify several values in this file: hostedZoneId and name below the route53.rootDomain element and cluster.name, cluster.region, and name below
15%
Compressed Archives for User Projects
11.08.2025
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control this project. The cool thing is that I can do everything as a user and don’t need any intervention by root, which is the point of this article. I’ll begin by reviewing both FUSE and
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Using Expect scripts to automate tasks
31.10.2025
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© Kheng Ho Toh, 123RF.com
/sbin/apache2 -k start\r 81 khess 21504 21433 0 15:55 pts/1 00:00:00 grep apache\r 82 root 23171 1 0 Sep27 ? 00:00:28 /usr/sbin/apache2 -k start\r 83 ]0;khess@aspen: ~khess@aspen:~\$ " 84
15%
Open source ticket system
26.03.2025
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Photo by Toa Heftiba on Unsplash
-compose.yml and ENV files reside, change the password setting, and start the OTOBO containers with Docker Compose: OTOBO_DB_ROOT_PASSWORD= nano .env docker-compose up -d The command downloads the images you
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The fail2ban intrusion prevention framework
30.11.2025
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© Flavijus Piliponis, 123RF.com
not known to the underlying authentication module for .* from\s*$ 03 ^%(__prefix_line)sFailed (?:password|publickey) for .* from (?: port \d*)?(?: ssh\d*)?$ 04 ^%(__prefix_line)sROOT
15%
Network backup with Burp, Obnam, and Backshift
30.11.2025
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© Sergey Peterman, 123RF.com
of data to be backed up, Backshift needs an external program such as find. Calling Backshift, for example, to back up the complete root filesystem, looks like this: find / -xdev -print0 | backshift --save
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Managing SSH and other remote connections with PAC
30.11.2025
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© Ivan Datskov, 123RF.com
of the administrator and immediately executes the command (because you checked Return ). The remote computer now outputs the [sudo] password for root: to ask for the administrative password. The term "password" occurs

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