Download Canvas API-Generated Images Using toBlob
How to draw an inline SVG onto a Canvas context and then how to generate a downloadable Jpeg or PNG file from what’s drawn on the canvas using toBlob.
Ubuntu 18.04 — cairo — multiple vulnerabilities (4 CVEs) — patch and remediation guide
🟡 Medium ⏱ 10–30 min Last verified: 21 April 2020 Affected versions: Ubuntu 18.04 (bionic) 📖 ~4 min read • Source: Ubuntu Security Notice USN-8140-1 Related CVEs: CVE-2020-35492 CVE-2017-9814 CVE-2019-6462 CVE-2019-6461 Upstream summary: Alberto Garcia, Francisco Oca and Suleman Ali discovered that Cairo did not properly manage memory. An attacker could possibly use this […]
How to Add Software Repositories in SLES 15
Introduction This tutorial covers How to Add Software Repositories in SLES 15 on SLES 15. SLES 15 (SUSE Linux Enterprise Server 16) is SUSE’s enterprise-grade Linux distribution. It uses the zypper package manager, AppArmor for mandatory access control, and systemctl for service management. Prerequisites Ensure your SLES 15 system is up to date: zypper refresh […]
How To Run Multiple PHP Versions on One Server Using Apache and PHP-FPM on Ubuntu 18.04
The Apache web server uses virtual hosts to manage multiple domains on a single instance. Similarly, PHP-FPM uses a daemon to manage multiple PHP versions on a single instance. Together, you can use Apache and PHP-FPM to host multiple PHP web-applications, each using a different version of PHP, all on the same server, and all at the same time.
SLES 15 — python2-urllib3 — multiple vulnerabilities (5 CVEs) — patch and remediation guide
🟡 Medium ⏱ 10–30 min Last verified: 21 April 2020 Affected versions: SLES 15 📖 ~4 min read • Source: SUSE advisory SUSE-FU-2022:0444-1 (see also SUSE bugzilla) Related CVEs: CVE-2018-20060 CVE-2019-9740 CVE-2016-9015 CVE-2019-11236 CVE-2019-11324 Upstream summary: urllib3 before version 1.23 does not remove the Authorization HTTP header when following a cross-origin redirect (i.e., a […]
How To Install Webmin on Debian 10
Webmin is a modern, web control panel for any Linux machine. It allows you to administer your server through an simple interface. In this tutorial, you’ll install and configure Webmin on a Debian 10 server and secure access to the interface with a valid certificate using Let’s Encrypt.
How To Encrypt Traffic to Redis with PeerVPN on Ubuntu 16.04
Redis is an open-source key-value data store, using an in-memory storage model with optional disk writes for persistence. It features transactions, a pub/sub messaging pattern, and automatic failover among other functionality. Redis has clients written in most languages with…
How to Install Zabbix Server on Debian 10
Introduction This guide explains how to Install Zabbix Server on Debian 10 on Debian 10 Buster. Debian Buster uses systemd for service management, nftables as the underlying packet filter (with ufw or iptables front-ends still available), and AppArmor for mandatory access control. Every command is designed for a minimal Debian 10 install with the standard […]
Oracle Linux 8 — postgresql-jdbc — vulnerability — patch and remediation guide (ELSA-2020-3176)
🟠 High ⏱ 15–60 min Last verified: 21 April 2020 Affected versions: Oracle Linux 8 📖 ~4 min read • Source: ELSA advisory ELSA-2020-3176 Related CVEs: CVE-2020-13692 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]
How To Extend Classes with Angular Component Inheritance
Learn how to use the power of inheritance to extend your Angular components with common functionality.