2019 - Page 245 of 527

Common Problems 118034

Ubuntu 18.04 failed to fetch updates from repositories

🟡 Medium   ⏱ 5–30 min  Last verified: 31 August 2019 📖 ~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 […]

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How to Configure LDAP Security on Windows Server 2019 — step-by-step Windows Server 2019 tutorial on Progressive Robot

How to Configure LDAP Security on Windows Server 2019

Introduction to LDAP Security LDAP (Lightweight Directory Access Protocol) is the protocol that applications use to query and modify Active Directory. By default, Windows Server 2019 domain controllers accept LDAP connections on port 389 without requiring signing or channel binding, making them vulnerable to man-in-the-middle attacks where an attacker can intercept and relay LDAP authentication. […]

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FreeBSD 12 — go-devel — vulnerability — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — go-devel — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 31 August 2019 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: go — invalid headers are normalized, allowing request smuggling Related CVEs: CVE-2019-16276 Upstream summary: The Go project reports: net/http (through net/textproto) used to accept and normalize invalid HTTP/1.1 headers with […]

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Java Queue – Queue in Java — step-by-step Programming tutorial on Progressive Robot

Java Queue – Queue in Java

URL: https://www.progressiverobot.com/java-queue/ Java Queue is an interface available in java.util package and extends java.util.Collection interface. Just like Java List, Java Queue is a collection of ordered elements (Or objects) but it performs insert and remove operations differently. We can use Queue to store elements before processing those elements. ![](images/java-queue-section-1.png) Java Queue In this section, we […]

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FreeBSD 12 — php5-imap — multiple vulnerabilities (9 CVEs) — patch and remediation guide — diagnosis and fix on FreeBSD 12

FreeBSD 12 — php5-imap — multiple vulnerabilities (9 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 31 August 2019 Affected versions: FreeBSD 12 📖 ~4 min read  •  Source: FreeBSD VuXML VuXML topic: php-imap — Denial of Service Related CVEs: CVE-2007-0905 CVE-2007-0906 CVE-2007-0907 CVE-2007-0908 CVE-2007-0909 CVE-2007-0910 CVE-2007-0988 CVE-2007-1001  +1 more Upstream summary: The following DoS condition in IMAP extension was fixed in PHP […]

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Arch Linux — freeradius — multiple vulnerabilities (7 CVEs) — patch and remediation guide — diagnosis and fix on Arch Linux

Arch Linux — freeradius — multiple vulnerabilities (7 CVEs) — patch and remediation guide

🔴 Critical   ⏱ 15–90 min  Last verified: 25 May 2026 Affected versions: Arch Linux (rolling release) 📖 ~4 min read  •  Source: Arch ASA ASA-201707-23 Related CVEs: CVE-2017-10987 CVE-2017-10986 CVE-2017-10985 CVE-2017-10984 CVE-2017-10983 CVE-2017-10978 CVE-2017-9148 Upstream summary: Type: multiple issues. Status: Fixed. Affected: 3.0.14-4. Fixed in: 3.0.15-1. Group: AVG-357. Table of contents Symptom & Impact […]

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How To Monitor Server Health with Checkmk on Ubuntu 18.04 — step-by-step Linux tutorial on Progressive Robot

How To Monitor Server Health with Checkmk on Ubuntu 18.04

Checkmk is a monitoring solution that is both robust and simpler to install than many of its competitors. It is a self-contained software bundle that combines Nagios (a popular and open-source alerting service) with add-ons for gathering, monitoring, and graphing data. It also comes with Checkmk’s web interface — a comprehensive tool that addresses many of Nagios’s shortcomings. In this guide we will set up Checkmk and monitor two separate hosts: an Ubuntu 18.04 server and a CentOS 7 server.

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How to Install Rust and Cargo on RHEL 8 — step-by-step RHEL 8 tutorial on Progressive Robot

How to Install Rust and Cargo on RHEL 8

Rust is a systems programming language focused on safety, speed, and concurrency. On RHEL 8, the recommended way to install Rust is through rustup, the official Rust toolchain installer, which lets you manage multiple Rust versions and cross-compilation targets from a single tool. This approach keeps your Rust installation self-contained under your home directory and […]

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