How to Install Docker Compose on Ubuntu (Step-by-Step Guide)
Learn how to install Docker Compose on Ubuntu using the official binary. Step-by-step installation guide with troubleshooting tips and practical examples.
How To Configure a Mail Server Using Postfix, Dovecot, MySQL, and SpamAssassin
In this tutorial we are going to configure a mail server using Postfix, Dovecot, MySQL, and SpamAssassin on Ubuntu 12.04.
fgets() and gets() in C Programming
Introduction We all are familiar with the scanf() function. It is the main function applicable to take basic user inputs. Even though scanf() works great while taking inputs such as integer, character, float etc. It certainly falls behind while taking string inputs containing whitespaces. Let's take a look at an example, #include<stdio.h> int main() { […]
Como configurar Apache Virtual Hosts no Ubuntu 16.04
O servidor web Apache é a forma mais popular de servir conteúdo web na Internet. Ele representa mais da metade de todos os websites ativos na Internet e é extremamente poderoso e flexível. O Apache divide suas funcionalidades e componentes em unidades individuais que podem…
Angular: Error Tracking Using Sentry
Learn how to setup Sentry in your Angular 2+ apps for error tracking in production.
How to Configure Windows Server 2019 Active Directory Reporting
How to Configure Windows Server 2019 Active Directory Reporting Active Directory reporting provides visibility into the state of your directory — user account status, group memberships, password policy compliance, inactive accounts, privileged access, and more. Regular AD reports are essential for security auditing, compliance requirements (SOX, HIPAA, PCI-DSS), and operational hygiene. Windows Server 2019 includes […]
Oracle Linux 8 — rsync security and — enhancement update — new behaviour and fixes (ELSA-2022-7793)
🟡 Medium ⏱ 10–30 min Last verified: 25 May 2026 Affected versions: Oracle Linux 8 📖 ~4 min read • Source: ELSA advisory ELSA-2022-7793 Related CVEs: CVE-2022-37434 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]
Ubuntu 14.04 LTS NFS mounts return stale file handle
🟡 Medium ⏱ 5–30 min Last verified: 20 May 2026 Affected versions: 14.04 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 & […]
Gentoo Linux — sys-fs/f2fs-tools — multiple vulnerabilities (5 CVEs) — patch and remediation guide
🟡 Medium ⏱ 10–30 min Last verified: 25 May 2026 Affected versions: Gentoo Linux 📖 ~4 min read • Source: Gentoo GLSA GLSA-202101-26 Related CVEs: CVE-2020-6104 CVE-2020-6105 CVE-2020-6106 CVE-2020-6107 CVE-2020-6108 Upstream summary: Multiple vulnerabilities have been discovered in f2fs-tools. Please review the CVE identifiers referenced below for details. Table of contents Symptom & Impact […]
Ubuntu 20.04 Slow APT Downloads
🟡 Medium ⏱ 5–30 min Last verified: 19 May 2026 📖 ~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 […]
