Use Roles and Permissions in PostgreSQL on a VPS
Learn how to create roles, manage privileges, and grant permissions in PostgreSQL on a VPS. Includes role management and VPS security.
How To Deploy and Manage Your DNS Using DNSControl on Debian 10
DNSControl is an infrastructure-as-code tool that allows you to deploy and manage your DNS zones using standard software development principles, including version control, testing, and automated deployment. In this tutorial, you’ll install and configure DNSControl, create a basic DNS configuration, and begin deploying DNS records to a live provider.
Ubuntu 16.04 — node-fstream — vulnerability — patch and remediation guide
🟢 Low ⏱ 5–15 min Last verified: 10 July 2020 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read • Source: Ubuntu Security Notice USN-4863-1 Related CVEs: CVE-2019-13173 Upstream summary: It was discovered that fstream incorrectly handled certain crafted tarballs. An attacker could use this vulnerability to write arbitrary files to the filesystem. Table […]
How To Use Gmail or Yahoo with PHP mail() Function
Read through this tutorial to learn how to use Gmail or Yahoo with PHP mail() function.
Python pip SSL Certificate Verify Failed
🟡 Medium ⏱ 5–30 min Last verified: 9 July 2020 📖 ~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 […]
FreeBSD 12 — py38-yaml — multiple vulnerabilities (2 CVEs) — patch and remediation guide
🟢 Low ⏱ 5–15 min Last verified: 9 July 2020 Affected versions: FreeBSD 12 📖 ~4 min read • Source: FreeBSD VuXML VuXML topic: PyYAML — arbitrary code execution Related CVEs: CVE-2020-14343 CVE-2020-1747 Upstream summary: A vulnerability was discovered in the PyYAML library in versions before 5.4, where it is susceptible to arbitrary code […]
Visitor Design Pattern in Java
URL: https://www.progressiverobot.com/visitor-design-pattern-java/ Visitor Design Pattern is one of the behavioral design pattern. Visitor Design Pattern Visitor pattern is used when we have to perform an operation on a group of similar kind of Objects. With the help of visitor pattern, we can move the operational logic from the objects to another class. For example, think […]
Python Modules
URL: https://www.progressiverobot.com/python-modules/ Python Module is essentially a python script file that can contain variables, functions, and classes. Python modules help us in organizing our code and then referencing them in other classes or python scripts. Python Modules A file containing Python definitions and statements is called a python module. So naturally, the file name is […]
How to Configure OpenVAS Vulnerability Scanner on Debian 10
Introduction This guide explains how to Configure OpenVAS Vulnerability Scanner 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 […]
Python Classes and Objects
URL: https://www.progressiverobot.com/python-classes-objects/ Python is an object-oriented programming language. Python Classes and Objects are the core building blocks of Python programming language. Python Class By this time, all of you should have already learned about [Python Data Types](/community/tutorials/python-data-types). If you remember, basic data types in python refer to only one kind of data at a time. […]
