Package Management

How to Install Symfony on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Install Symfony on RHEL 7

How to Install Symfony on RHEL 7 Symfony is a mature, enterprise-grade PHP framework built around reusable components that power projects ranging from small APIs to large-scale e-commerce platforms. Many PHP projects, including Drupal, Laravel, and Magento, depend directly on Symfony components. Installing Symfony on RHEL 7 follows a similar pattern to other PHP frameworks: […]

Read more
How to Configure OpenTelemetry Collector on SLES 15 — step-by-step SUSE Linux Enterprise 15 tutorial on Progressive Robot

How to Configure OpenTelemetry Collector on SLES 15

Introduction This tutorial covers How to Configure OpenTelemetry Collector on SLES 15 on SLES 15. SLES 15 (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 15 system is up to date: zypper refresh […]

Read more
Common Problems 115556

RHEL 7 service httpd Starts but Health Check Still Fails

🟠 High   ⏱ 5–30 min  Last verified: 24 March 2020 Affected versions: RHEL 7 📖 ~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
FreeBSD 12 — postgresql96-client — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — postgresql96-client — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 24 March 2020 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: PostgreSQL vulnerabilities Related CVEs: CVE-2016-5423 CVE-2016-5424 Upstream summary: The PostgreSQL project reports: Security Fixes nested CASE expressions + database and role names with embedded special characters CVE-2017-7484: selectivity estimators bypass […]

Read more
Amazon Linux 2 — mercurial — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on Amazon Linux 2

Amazon Linux 2 — mercurial — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: Amazon Linux 2 📖 ~4 min read  •  Source: Amazon Linux advisory ALAS2-2019-1328 Related CVEs: CVE-2019-8379 CVE-2019-8383 Upstream summary: An issue was discovered in AdvanceCOMP through 2.1. A NULL pointer dereference exists in the function be_uint32_read() located in endianrw.h. It can be […]

Read more
How to Install OpenShift CLI on SLES 15 — step-by-step SUSE Linux Enterprise 15 tutorial on Progressive Robot

How to Install OpenShift CLI on SLES 15

Introduction This tutorial covers How to Install OpenShift CLI on SLES 15 on SLES 15. SLES 15 (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 15 system is up to date: zypper refresh […]

Read more
FreeBSD 12 — raptor — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — raptor — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 24 March 2020 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: raptor2 — malformed input file can lead to a segfault Related CVEs: CVE-2012-0037 CVE-2017-18926 Upstream summary: Redland Issue Tracker reports: due to an out of bounds array access in raptor_xml_writer_start_element_common. […]

Read more
FreeBSD 12 — ko-helvis — multiple vulnerabilities (3 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — ko-helvis — multiple vulnerabilities (3 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 24 March 2020 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: helvis — arbitrary file deletion problem Related CVEs: CVE-2005-0118 CVE-2005-0119 CVE-2005-0120 Upstream summary: The setuid root elvprsv utility, used to preserve recovery helvis files, can be abused by local users […]

Read more
CHAT