Linux

Common Problems 121699

Debian 9 Cron Job Not Running at Scheduled Time

🟡 Medium   ⏱ 5–30 min  Last verified: 28 September 2019 Affected versions: Debian 9 📖 ~1 min read Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance Criteria Rollback Plan Prevention & Hardening Related Errors & […]

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Common Problems 118072

Ubuntu 18.04 LTS rsyslog stops writing logs after disk pressure

🟡 Medium   ⏱ 5–30 min  Last verified: 28 September 2019 📖 ~1 min read Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance Criteria Rollback Plan Prevention & Hardening Related Errors & Cross-Refs References & Further […]

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How to Install Podman as a Rootless Docker Alternative on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Install Podman as a Rootless Docker Alternative on RHEL 7

How to Install Podman as a Rootless Docker Alternative on RHEL 7 Podman is a daemonless, rootless container engine developed by Red Hat that is fully compatible with the OCI (Open Container Initiative) standard and largely compatible with the Docker CLI. Unlike Docker, Podman does not require a long-running background daemon running as root, which […]

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How To Install and Manage System Packages in Ansible Playbooks — step-by-step Linux tutorial on Progressive Robot

How To Install and Manage System Packages in Ansible Playbooks

Automating the installation of required system packages is a common operational task in Ansible playbooks, since a typical application stack requires software from different sources. In this guide, learn more about how to use the apt module to manage system packages on Debian-based operating systems such as Ubuntu.

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Arrays in Shell Scripts — step-by-step Linux tutorial on Progressive Robot

Arrays in Shell Scripts

Mastering arrays in shell scripts can significantly enhance your ability to handle large datasets efficiently. In this tutorial, you’ll learn the basics of arrays, how to create and work with both indexed and associative arrays and perform essential operations like accessing, looping and deleting array elements.

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Common Problems 117979

Ubuntu 18.04 LTS Cloud-Init Rewrites Network Settings

🟡 Medium   ⏱ 5–30 min  Last verified: 27 September 2019 Affected versions: 18.04 LTS 📖 ~1 min read Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance Criteria Rollback Plan Prevention & Hardening Related Errors & […]

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