authorization

How to Install Gradle Build Tool on FreeBSD 15 — step-by-step FreeBSD 15 tutorial on Progressive Robot

How to Install Gradle Build Tool on FreeBSD 15

Introduction Deploying install gradle build tool on a FreeBSD 15 machine differs from Linux in several important ways: packages come from the FreeBSD Ports Collection or the binary pkg repository, services are registered in /etc/rc.conf via sysrc(8), and firewall rules are written in pf.conf(5) syntax. This tutorial stays entirely within the standard base + ports […]

Read more
How to Configure Nginx Caching on FreeBSD 15 — step-by-step FreeBSD 15 tutorial on Progressive Robot

How to Configure Nginx Caching on FreeBSD 15

Introduction Deploying configure nginx caching on a FreeBSD 15 machine differs from Linux in several important ways: packages come from the FreeBSD Ports Collection or the binary pkg repository, services are registered in /etc/rc.conf via sysrc(8), and firewall rules are written in pf.conf(5) syntax. This tutorial stays entirely within the standard base + ports approach […]

Read more
How to Configure Nginx Server Blocks on FreeBSD 15 — step-by-step FreeBSD 15 tutorial on Progressive Robot

How to Configure Nginx Server Blocks on FreeBSD 15

Introduction Deploying configure nginx server blocks on a FreeBSD 15 machine differs from Linux in several important ways: packages come from the FreeBSD Ports Collection or the binary pkg repository, services are registered in /etc/rc.conf via sysrc(8), and firewall rules are written in pf.conf(5) syntax. This tutorial stays entirely within the standard base + ports […]

Read more
How to Take a System Snapshot Before Upgrades on RHEL 10 — step-by-step RHEL 10 tutorial on Progressive Robot

How to Take a System Snapshot Before Upgrades on RHEL 10

Introduction Setting up take a system snapshot before upgrades on a RHEL 10 server is a common task for system administrators, DevOps engineers, and site reliability engineers. This guide explains how to Take a System Snapshot Before Upgrades on RHEL 10, with all the commands you need, the SELinux and firewalld considerations to keep in […]

Read more
How to Tune Kernel Parameters with sysctl on FreeBSD 15 — step-by-step FreeBSD 15 tutorial on Progressive Robot

How to Tune Kernel Parameters with sysctl on FreeBSD 15

Introduction This guide explains how to Tune Kernel Parameters with sysctl on FreeBSD 15 on FreeBSD 15. FreeBSD uses the pkg(8) binary package manager, rc.conf(5) for service startup configuration, and pf(4) as its primary packet filter. There is no SELinux or AppArmor — instead, FreeBSD provides the MAC (Mandatory Access Control) framework and Capsicum for […]

Read more
Common Problems 115982

Ubuntu 26.04 LTS – Wi-Fi adapter not detected after install – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 4 June 2026 Affected versions: Ubuntu 26.04 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 […]

Read more
Common Problems 113987

RHEL 10 – New kernel installed but old kernel still boots by default – Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 4 June 2026 Affected versions: RHEL 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
Common Problems 116072

Ubuntu 26.04 LTS – cloud-init hangs and instance provisioning never completes – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 4 June 2026 Affected versions: Ubuntu 26.04 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 […]

Read more
Common Problems 122053

System Logs Not Rotating and /var Grows Rapidly

🟡 Medium   ⏱ 5–30 min  Last verified: 4 June 2026 Affected versions: FreeBSD 15 📖 ~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
Ubuntu 22.04 — krb5 — multiple vulnerabilities (11 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 22.04

Ubuntu 22.04 — krb5 — multiple vulnerabilities (11 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 4 June 2026 Affected versions: Ubuntu 22.04 (jammy) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7542-1 Related CVEs: CVE-2025-3576 CVE-2024-26458 CVE-2024-26461 CVE-2024-26462 CVE-2025-24528 CVE-2024-3596 CVE-2024-37370 CVE-2024-37371  +3 more Upstream summary: It was discovered that Kerberos allowed the usage of weak cryptographic standards. An attacker could […]

Read more
CHAT