How To Create Nagios Plugins With Perl On CentOS 6
After completing this tutorial, you’ll have created Nagios Plugins with Perl on a CentOS 6 virtual server.
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How To Create a New Sudo-enabled User on CentOS 8 [Quickstart]
This guide will show you how to create a new user with sudo access on CentOS 8, without having to modify your server’s /etc/sudoers file.
How To Configure Varnish Cache 4.0 with SSL Termination on Ubuntu 14.04
Varnish Cache is a caching HTTP reverse proxy, or HTTP accelerator, which reduces the time it takes to serve content to a user. In this tutorial, we will cover how to use Varnish Cache 4.0 to improve the performance of your existing web server. We will also show you a way to add HTTPS support to Varnish, with Nginx performing the SSL termination.
Debian 11 — mariadb-10.5 — multiple vulnerabilities (20 CVEs) — patch and remediation guide
🟠 High ⏱ 15–60 min Last verified: 26 October 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read • Source: Debian Security Tracker Related CVEs: CVE-2020-14765 CVE-2020-14776 CVE-2020-14789 CVE-2020-14812 CVE-2020-15180 CVE-2021-2022 CVE-2021-2154 CVE-2021-2166 +12 more Upstream summary: Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: FTS). Supported versions that are […]
How to Set Up PostgreSQL Streaming Replication on Debian 11
Introduction Debian 11 Bullseye is built around the ethos of stability and free software. Setting up set up postgresql streaming replication on debian 11 on Bullseye leverages the same proven Debian packaging system that powers millions of servers worldwide, while benefiting from the latest upstream releases included in the Bullseye freeze. Follow each step carefully […]
Debian 11 — bibutils — multiple vulnerabilities (3 CVEs) — patch and remediation guide
🟡 Medium ⏱ 10–30 min Last verified: 25 October 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read • Source: Debian Security Tracker Related CVEs: CVE-2018-10773 CVE-2018-10774 CVE-2018-10775 Upstream summary: NULL pointer deference in the addsn function in serialno.c in libbibcore.a in bibutils through 6.2 allows remote attackers to cause a denial of […]
Ubuntu 22.04 LTS – UFW rules break Docker container connectivity – Fix & Prevention
🟠 High ⏱ 5–30 min Last verified: 25 October 2022 Affected versions: Ubuntu 22.04 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 […]
Debian 11 — php-sabredav — vulnerability — patch and remediation guide
🟢 Low ⏱ 5–15 min Last verified: 25 October 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read • Source: Debian Security Tracker Related CVEs: CVE-2014-2055 Upstream summary: SabreDAV before 1.7.11, as used in ownCloud Server before 5.0.15 and 6.0.x before 6.0.2, allows remote attackers to read arbitrary files, cause a denial of […]
Debian 11 — procmail — multiple vulnerabilities (2 CVEs) — patch and remediation guide
🟢 Low ⏱ 5–15 min Last verified: 25 October 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read • Source: Debian Security Tracker Related CVEs: CVE-2014-3618 CVE-2017-16844 Upstream summary: Heap-based buffer overflow in formisc.c in formail in procmail 3.22 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary […]
Debian 11 — exif — multiple vulnerabilities (2 CVEs) — patch and remediation guide
🟢 Low ⏱ 5–15 min Last verified: 25 October 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read • Source: Debian Security Tracker Related CVEs: CVE-2012-2845 CVE-2021-27815 Upstream summary: Integer overflow in the jpeg_data_load_data function in jpeg-data.c in libjpeg in exif 0.6.20 allows remote attackers to cause a denial of service (buffer over-read […]