JavaScript Interview Questions: Common Gotchas
Some tricky JavaScript gotchas you might see as interview questions and how to avoid them.
FreeBSD 12 — py310-ansible-base — vulnerability — patch and remediation guide
🟢 Low ⏱ 5–15 min Last verified: 31 January 2021 Affected versions: FreeBSD 12 📖 ~4 min read • Source: FreeBSD VuXML VuXML topic: Ansible — Ansible user credentials disclosure in ansible-connection module Related CVEs: CVE-2021-3620 Upstream summary: Red Hat reports: A flaw was found in Ansible Engine's ansible-connection module, where sensitive information such […]
Java equals() and hashCode()
URL: https://www.progressiverobot.com/java-equals-hashcode/ Java equals() and hashCode() methods are present in Object class. So every java class gets the default implementation of equals() and hashCode(). In this post we will look into java equals() and hashCode() methods in detail. Java equals() Object class defined equals() method like this: public boolean equals(Object obj) { return (this == […]
FreeBSD 12 — py310-markdown — multiple vulnerabilities (2 CVEs) — patch and remediation guide
🟢 Low ⏱ 5–15 min Last verified: 31 January 2021 Affected versions: FreeBSD 12 📖 ~4 min read • Source: FreeBSD VuXML VuXML topic: py-markdown2 — regular expression denial of service vulnerability Related CVEs: CVE-2020-11888 CVE-2021-26813 Upstream summary: Ben Caller reports: markdown2 >=1.0.1.18, fixed in 2.4.0, is affected by a regular expression denial of […]
How To Use fwknop to Enable Single Packet Authentication on Ubuntu 12.04
Single Packet Authentication is a method that grew out of earlier port knocking as a way of keeping services shielded until you request access through a predefined sequence of events. Single packet authentication does this by sending a single encrypted packet to the server in order, which can then validate the client and open the requested port. In this article, we will discuss how to use the fwknop suite to implement single packet authentication on an Ubuntu 12.04 VPS.
How to Configure High Availability for DHCP with DHCP Failover on Windows Server 2019
Introduction to DHCP Failover on Windows Server 2019 DHCP Failover in Windows Server 2019 enables two DHCP servers to share a scope’s IP address pool, providing continuous DHCP service even if one server fails. This is far superior to the older “split scope” approach where each server held half the addresses, because DHCP Failover allows […]
Ubuntu 16.04 — php-horde-css-parser — vulnerability — patch and remediation guide
🟢 Low ⏱ 5–15 min Last verified: 31 January 2021 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read • Source: Ubuntu Security Notice USN-7502-1 Related CVEs: CVE-2020-13756 Upstream summary: It was discovered that Horde Css Parser did not correctly handle parsing uncontrolled CSS data. An attacker could possibly use this issue to perform […]
How To Set Up a Continuous Deployment Pipeline with GitLab CI/CD on Ubuntu
This tutorial will walk you through the steps to set up a continuous deployment pipeline with GitLab on an Ubuntu machine.
SLES 15 — umoci — multiple vulnerabilities (2 CVEs) — patch and remediation guide
🟠 High ⏱ 15–60 min Last verified: 31 January 2021 Affected versions: SLES 15 📖 ~4 min read • Source: SUSE advisory SUSE-SU-2021:1116-1 (see also SUSE bugzilla) Related CVEs: CVE-2021-29136 CVE-2021-41190 Upstream summary: Open Container Initiative umoci before 0.4.7 allows attackers to overwrite arbitrary host paths via a crafted image that causes symlink traversal […]
Installieren und Konfigurieren von Postfix unter Ubuntu 20.04
Eine frühere Version dieses Tutorials wurde von Justin Ellingwood verfasst Postfix ist ein beliebter Open-Source [*Mail Transfer…