IT, Cloud & DevOps Blog

How to Configure the System Timezone on FreeBSD 15 — step-by-step FreeBSD 15 tutorial on Progressive Robot

How to Configure the System Timezone on FreeBSD 15

Introduction Deploying configure the system timezone 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 […]

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SLES 16 — squid — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on SLES 16

SLES 16 — squid — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🔴 Critical   ⏱ 15–90 min  Last verified: 29 July 2026 Affected versions: SLES 16 📖 ~4 min read  •  Source: SUSE advisory SUSE-SU-2019:2975-1 (see also SUSE bugzilla) Related CVEs: CVE-2019-12527 CVE-2020-15810 CVE-2020-15811 CVE-2025-59362 CVE-2025-62168 CVE-2016-3948 CVE-2016-4053 CVE-2018-1172  +12 more Upstream summary: An issue was discovered in Squid 4.0.23 through 4.7. When checking Basic Authentication […]

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Oracle Linux 10 — git-lfs — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 10

Oracle Linux 10 — git-lfs — vulnerability — patch and remediation guide (ELSA-2026-4164)

🟠 High   ⏱ 15–60 min  Last verified: 29 July 2026 Affected versions: Oracle Linux 10 📖 ~4 min read  •  Source: ELSA advisory ELSA-2026-4164 Related CVEs: CVE-2025-61726 CVE-2025-61729 CVE-2025-68121 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification […]

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How to Install rkhunter on Debian 13 — step-by-step Debian 13 tutorial on Progressive Robot

How to Install rkhunter on Debian 13

Introduction This guide explains how to Install rkhunter on Debian 13 on Debian 13 Trixie. Debian Trixie uses systemd for service management, nftables as the underlying packet filter (with ufw or iptables front-ends still available), and AppArmor for mandatory access control. Every command is designed for a minimal Debian 13 install with the standard repositories […]

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How to Set Up Nginx Ingress in Kubernetes on Debian 13 — step-by-step Debian 13 tutorial on Progressive Robot

How to Set Up Nginx Ingress in Kubernetes on Debian 13

Introduction Debian 13 Trixie is built around the ethos of stability and free software. Setting up set up nginx ingress in kubernetes on Trixie leverages the same proven Debian packaging system that powers millions of servers worldwide, while benefiting from the latest upstream releases included in the Trixie freeze. Follow each step carefully and the […]

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Common Problems 121963

Fix pkg Repository Signature Mismatch on FreeBSD 15

🟡 Medium   ⏱ 5–30 min  Last verified: 29 July 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 & […]

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How to Set Up the ELK Stack on SLES 16 — step-by-step SUSE Linux Enterprise 16 tutorial on Progressive Robot

How to Set Up the ELK Stack on SLES 16

Introduction This tutorial covers How to Set Up the ELK Stack on SLES 16 on SLES 16. SLES 16 (SUSE Linux Enterprise Server 16) is SUSE’s enterprise-grade Linux distribution. It uses the zypper package manager, AppArmor for mandatory access control, and systemctl for service management. Prerequisites Ensure your SLES 16 system is up to date: […]

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How to Set Up Two-Factor Authentication with Google Authenticator on SLES 16 — step-by-step SUSE Linux Enterprise 16 tutorial on Progressive Robot

How to Set Up Two-Factor Authentication with Google Authenticator on SLES 16

Introduction This tutorial covers How to Set Up Two-Factor Authentication with Google Authenticator on SLES 16 on SLES 16. SLES 16 (SUSE Linux Enterprise Server 16) is SUSE’s enterprise-grade Linux distribution. It uses the zypper package manager, AppArmor for mandatory access control, and systemctl for service management. Prerequisites Ensure your SLES 16 system is up […]

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FreeBSD 15 — lcms — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 15

FreeBSD 15 — lcms — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 28 July 2026 Affected versions: FreeBSD 15 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: lcms2 — Integer overflow Related CVEs: CVE-2013-4160 CVE-2026-41254 Upstream summary: https://github.com/mm2/Little-CMS/commit/da6110b1d14abc394633a388209abd5ebedd7ab0 reports: Little CMS (lcms2) through 2.18 has an integer overflow in CubeSize in cmslut.c because the overflow check is […]

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AlmaLinux 10 — vsftpd — vulnerability — patch and remediation guide — diagnosis and fix on AlmaLinux 10

AlmaLinux 10 — vsftpd — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 10 📖 ~4 min read  •  Source: AlmaLinux ALSA ALSA-2026:0606 Related CVEs: CVE-2025-14242 Upstream summary: The vsftpd packages include a Very Secure File Transfer Protocol (FTP) daemon, which is used to serve files over a network. Security Fix(es): * vsftpd: vsftpd: […]

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