authorization

How to Configure Network Bonding on Oracle Linux 10 — step-by-step Oracle Linux 10 tutorial on Progressive Robot

How to Configure Network Bonding on Oracle Linux 10

Introduction Setting up configure network bonding on oracle linux 10 on a Oracle Linux 10 server is a common task for system administrators, DevOps engineers, and site reliability engineers. This guide explains how to Configure Network Bonding on Oracle Linux 10, with all the commands you need, the SELinux and firewalld considerations to keep in […]

Read more
How to Install Caddy Web Server on Oracle Linux 10 — step-by-step Oracle Linux 10 tutorial on Progressive Robot

How to Install Caddy Web Server on Oracle Linux 10

Introduction Setting up install caddy web server on oracle linux 10 on a Oracle Linux 10 server is a common task for system administrators, DevOps engineers, and site reliability engineers. This guide explains how to Install Caddy Web Server on Oracle Linux 10, with all the commands you need, the SELinux and firewalld considerations to […]

Read more
Ubuntu 18.04 — krb5 — multiple vulnerabilities (10 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 18.04

Ubuntu 18.04 — krb5 — multiple vulnerabilities (10 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 15 July 2025 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7542-1 Related CVEs: CVE-2025-3576 CVE-2024-3596 CVE-2024-37370 CVE-2024-37371 CVE-2023-36054 CVE-2021-36222 CVE-2021-37750 CVE-2018-20217  +2 more Upstream summary: It was discovered that Kerberos allowed the usage of weak cryptographic standards. An attacker could […]

Read more
How to Configure Fail2Ban on Oracle Linux 10 — step-by-step Oracle Linux 10 tutorial on Progressive Robot

How to Configure Fail2Ban on Oracle Linux 10

Introduction Oracle Linux 10 ships with a stable, security-hardened base that makes deploying configure fail2ban on oracle linux 10 both straightforward and auditable. This tutorial covers the complete procedure for how to Configure Fail2Ban on Oracle Linux 10, including dnf module streams where applicable, systemd unit management, and the firewalld rules required for network-facing services. […]

Read more
Common Problems 127109

CentOS Stream 10 – Common Problem 240 – Diagnosis and Fix

🟠 High   ⏱ 5–30 min  Last verified: 14 July 2025 Affected versions: CentOS Stream 10 📖 ~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 […]

Read more
How to Secure PostgreSQL on CentOS Stream 10 — step-by-step CentOS Stream 10 tutorial on Progressive Robot

How to Secure PostgreSQL on CentOS Stream 10

Introduction This tutorial demonstrates how to Secure PostgreSQL on CentOS Stream 10 on CentOS Stream 10. It is written for administrators who want a repeatable, well-explained walkthrough that goes beyond a bare command list and explains each configuration choice. Every command is tested against a freshly registered CentOS Stream 10 system with the default AppStream […]

Read more
Common Problems 116449

Ubuntu 24.04 LTS SSH Password Authentication Suddenly Disabled

🟡 Medium   ⏱ 5–30 min  Last verified: 14 July 2025 📖 ~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 […]

Read more
How to Install node_exporter on RHEL 10 — step-by-step RHEL 10 tutorial on Progressive Robot

How to Install node_exporter on RHEL 10

Introduction RHEL 10 ships with a stable, security-hardened base that makes deploying install node_exporter both straightforward and auditable. This tutorial covers the complete procedure for how to Install node_exporter on RHEL 10, including dnf module streams where applicable, systemd unit management, and the firewalld rules required for network-facing services. Prerequisites Before you begin, ensure you […]

Read more
How to Install Memcached on RHEL 10 — step-by-step RHEL 10 tutorial on Progressive Robot

How to Install Memcached on RHEL 10

Introduction Setting up install memcached on a RHEL 10 server is a common task for system administrators, DevOps engineers, and site reliability engineers. This guide explains how to Install Memcached on RHEL 10, with all the commands you need, the SELinux and firewalld considerations to keep in mind, and how to validate the result on […]

Read more
How to Use Python Virtual Environments on Ubuntu 24.04 — step-by-step Linux tutorial on Progressive Robot

How to Install Jupyter Notebook on Ubuntu 24.04

Jupyter Notebook is an interactive web-based computing environment for Python. It is widely used in data science, machine learning, and scientific research. This guide installs Jupyter Notebook on Ubuntu 24.04 LTS and configures it for remote access. Tested and valid on: Ubuntu 24.04 LTS Prerequisites Ubuntu 24.04 LTS server Python 3.12 installed A user account […]

Read more
CHAT