April 2021 - Page 6 of 66

How to Set Up Consul on Oracle Linux 8 — step-by-step Oracle Linux 8 tutorial on Progressive Robot

How to Set Up Consul on Oracle Linux 8

Introduction This tutorial demonstrates how to Set Up Consul on Oracle Linux 8 on Oracle Linux 8. 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 Oracle Linux 8 system with the default […]

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Gentoo Linux — app-admin/salt — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Gentoo Linux

Gentoo Linux — app-admin/salt — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 25 May 2026 Affected versions: Gentoo Linux 📖 ~4 min read  •  Source: Gentoo GLSA GLSA-202310-22 Related CVEs: CVE-2020-28243 CVE-2020-28972 CVE-2020-35662 CVE-2021-3144 CVE-2021-3148 CVE-2021-3197 CVE-2021-21996 CVE-2021-25281  +12 more Upstream summary: Multiple vulnerabilities have been discovered in Salt. Please review the CVE identifiers referenced below for details. Table […]

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Java 13 Features — step-by-step Programming tutorial on Progressive Robot

Java 13 Features

URL: https://www.progressiverobot.com/java-13-features/ Java 13 was released for production use on 17th September 2019. There are not a lot of developer-specific features in Java 13 because of the 6-month release cycle. Java 13 Features Some of the important Java 13 features are: Text Blocks – JEP 355 New Methods in String Class for Text Blocks Switch […]

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FreeBSD 13 — ja-acroread — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 13

FreeBSD 13 — ja-acroread — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: FreeBSD 13 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: acroread — XML External Entity vulnerability Related CVEs: CVE-2005-1306 Upstream summary: Sverre H. Huseby discovered a vulnerability in Adobe Acrobat and Adobe Reader. Under certain circumstances, using XML scripts it […]

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Использование сервера SMTP Google — step-by-step DevOps tutorial on Progressive Robot

Использование сервера SMTP Google

Портативный сервер Google SMTP входит в число малоизвестных функциональных компонентов Gmail и Google Apps. Вместо того чтобы управлять собственным сервером исходящей почты в the cloud provider VPS, вы можете просто настроить сервер SMTP Google для работы с любым скриптом или с любой программой, которые вы хотите использовать для отправки электронной почты.

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Debian 10 — spice — vulnerability — patch and remediation guide — diagnosis and fix on Debian 10

Debian 10 — spice — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Debian 10 (buster) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2020-14355 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]

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How To Troubleshoot Socket Errors in MySQL — step-by-step Linux tutorial on Progressive Robot

How To Troubleshoot Socket Errors in MySQL

MySQL manages connections to the database server through the use of a socket file, a special kind of file that facilitates communications between different processes. The MySQL server’s socket file is named mysqld.sock and on Ubuntu systems it’s usually stored in the /var/run/mysqld/…

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How to Install and Configure Dovecot IMAP Server on RHEL 9 — step-by-step RHEL 9 tutorial on Progressive Robot

How to Install and Configure Dovecot IMAP Server on RHEL 9

Dovecot is a fast, secure, and easy-to-configure IMAP and POP3 server that works seamlessly alongside Postfix on RHEL 9. Once Postfix is delivering incoming mail to a user’s Maildir, Dovecot allows mail clients such as Thunderbird or Outlook to retrieve those messages over IMAP or POP3 — with optional SSL/TLS encryption for both protocols. This […]

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Ubuntu 20.04 — gpsd — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — gpsd — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 25 May 2026 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-5035-1 Related CVEs: https://launchpad.net/bugs/1938730 Upstream summary: It was discovered that GPSd incorrectly handled certain leap second events which would result in the time jumping back 1024 weeks on 2021-10-31. Table […]

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