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 == […]
🟢 Low ⏱ 5–15 min Last verified: 25 May 2026 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 […]
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.
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 […]
🟢 Low ⏱ 5–15 min Last verified: 25 May 2026 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 […]
This tutorial will walk you through the steps to set up a continuous deployment pipeline with GitLab on an Ubuntu machine.
🟠 High ⏱ 15–60 min Last verified: 25 May 2026 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 […]
Eine frühere Version dieses Tutorials wurde von Justin Ellingwood verfasst Postfix ist ein beliebter Open-Source [*Mail Transfer…
🟠 High ⏱ 30–90 min Last verified: 25 May 2026 Affected versions: IBM AIX 7.2 Affected: 7.1 📖 ~4 min read • Source: NVD CVE-2021-29706, IBM Support Bulletin CVE: CVE-2021-29706 NVD summary: IBM AIX 7.1 could allow a non-privileged local user to exploit a vulnerability in the trace facility to expose sensitive information or […]
Laravel is an open source PHP framework that provides a set of tools and resources to build modern PHP applications. In this guide, you’ll install and configure a new Laravel application on an Ubuntu 18.04 server, using Composer to download and manage the framework dependencies. When you’re finished, you’ll have a functional Laravel demo application pulling content from a MySQL database.
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