How to Install R Packages using devtools on Ubuntu 16.04
R is a popular open source programming language that specializes in statistical computing and graphics. It is widely used for developing statistical software and performing data analysis.
Ubuntu 18.04 DNS Resolution Fails Intermittently with systemd-resolved
🟡 Medium ⏱ 5–30 min Last verified: 23 September 2021 📖 ~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 […]
Ubuntu 20.04 — libhibernate3-java — vulnerability — patch and remediation guide
🟢 Low ⏱ 5–15 min Last verified: 23 September 2021 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read • Source: Ubuntu Security Notice USN-6845-1 Related CVEs: CVE-2020-25638 Upstream summary: It was discovered that Hibernate incorrectly handled certain inputs with unsanitized literals. If a user or an automated system were tricked into opening a […]
Ubuntu 20.04 LTS Docker Permission Denied on /var/run/docker.sock
🟡 Medium ⏱ 5–30 min Last verified: 22 September 2021 📖 ~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 […]
How To Install Nagios 4 and Monitor Your Servers on Ubuntu 14.04
In this tutorial, we will cover the installation of Nagios 4, a very popular open source monitoring system, on Ubuntu 14.04. We will cover some basic configuration, so you will be able to monitor host resources via the web interface.
Ubuntu 16.04 — libpano13 — multiple vulnerabilities (2 CVEs) — patch and remediation guide
🟢 Low ⏱ 5–15 min Last verified: 22 September 2021 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read • Source: Ubuntu Security Notice USN-6163-1 Related CVEs: CVE-2021-20307 CVE-2021-33293 Upstream summary: It was discovered that pano13 did not properly validate the prefix provided for PTcrop's output. An attacker could use this issue to cause […]
How to Configure Consul KV Using Docker
Learn how to set up and configure Consul Key-Value (KV) store using Docker. This step-by-step guide covers Docker installation, Consul container deployment, and KV operations for efficient distributed configuration management.
Ubuntu 18.04 — linux-gke-5.3 — multiple vulnerabilities (20 CVEs) — patch and remediation guide
🟠 High ⏱ 15–60 min Last verified: 22 September 2021 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read • Source: Ubuntu Security Notice USN-5014-1 Related CVEs: CVE-2021-33909 CVE-2021-3609 https://launchpad.net/bugs/1924611 CVE-2021-29154 CVE-2021-3492 CVE-2021-3493 CVE-2020-27170 CVE-2020-27171 +12 more Upstream summary: It was discovered that the virtual file system implementation in the Linux kernel contained an […]
How To Set Up Time Synchronization on Ubuntu 20.04
Accurate timekeeping is integral to modern software deployments. Without it, you may encounter data corruption, errors, and other issues that are difficult to debug. In this article, you will practice some general time-related commands, verify that timesyncd is active, and install an alternate network time service.
Ubuntu 20.04 — pdfresurrect — multiple vulnerabilities (5 CVEs) — patch and remediation guide
🟡 Medium ⏱ 10–30 min Last verified: 20 September 2021 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read • Source: Ubuntu Security Notice USN-5282-1 Related CVEs: CVE-2019-14267 CVE-2019-14934 CVE-2020-20740 CVE-2020-9549 CVE-2021-3508 Upstream summary: It was discovered that PDFResurrect was incorrectly handling corrupted PDF files. An attacker could possibly use this issue to cause […]
