How To Set Up MySQL Master-Master Replication
This second installment of “Scaling Web Applications” will list out the steps necessary for scaling a mysql deployment over two VPS.
openSUSE Tumbleweed — kauth-devel — multiple vulnerabilities (2 CVEs) — patch and remediation guide
🟠 High ⏱ 15–60 min Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read • Source: SUSE advisory openSUSE-SU-2017:1254-1 (see also SUSE bugzilla) Related CVEs: CVE-2017-8422 CVE-2019-7443 Upstream summary: KDE kdelibs before 4.14.32 and KAuth before 5.34 allow local users to gain root privileges by spoofing a callerID and leveraging […]
SLES 15 — autoyast2 — vulnerability — patch and remediation guide
🟡 Medium ⏱ 10–30 min Last verified: 2 August 2019 Affected versions: SLES 15 📖 ~4 min read • Source: SUSE advisory SUSE-SU-2020:1296-1 (see also SUSE bugzilla) Related CVEs: CVE-2019-18905 Upstream summary: A Insufficient Verification of Data Authenticity vulnerability in autoyast2 of SUSE Linux Enterprise Server 12, SUSE Linux Enterprise Server 15 allows remote […]
How To Add Bootstrap to a Ruby on Rails Application
If you are developing a Ruby on Rails application, you may be interested in adding styles to your project to facilitate user engagement. Bootstrap is an HTML, CSS, and JavaScript framework designed to simplify the process of making web projects responsive and mobile ready. By implementing Bootstrap in a Rails project, you can integrate its layout conventions and components into your application to make user interactions with your site more engaging.
FreeBSD 12 — peercast — multiple vulnerabilities (2 CVEs) — patch and remediation guide
🟢 Low ⏱ 5–15 min Last verified: 1 August 2019 Affected versions: FreeBSD 12 📖 ~4 min read • Source: FreeBSD VuXML VuXML topic: peercast — arbitrary code execution Related CVEs: CVE-2007-6454 CVE-2008-2040 Upstream summary: Nico Golde discovered that PeerCast, a P2P audio and video streaming server, is vulnerable to a buffer overflow in […]
How to Install and Configure RRAS on Windows Server 2012 R2
How to Install and Configure RRAS on Windows Server 2012 R2 Routing and Remote Access Service (RRAS) is a comprehensive Windows Server feature that provides a wide range of network services including VPN server, dial-up remote access, network address translation (NAT), demand-dial routing, and multi-protocol LAN-to-LAN and LAN-to-WAN routing. On Windows Server 2012 R2, RRAS […]
FreeBSD 12 — php56-snmp — multiple vulnerabilities (12 CVEs) — patch and remediation guide
🟠 High ⏱ 15–60 min Last verified: 1 August 2019 Affected versions: FreeBSD 12 📖 ~4 min read • Source: FreeBSD VuXML VuXML topic: php — multiple vulnerabilities Related CVEs: CVE-2015-8879 CVE-2016-5385 CVE-2016-5399 CVE-2016-6288 CVE-2016-6289 CVE-2016-6290 CVE-2016-6291 CVE-2016-6292 +4 more Upstream summary: PHP reports: Fixed bug #69975 (PHP segfaults when accessing nvarchar(max) defined columns) […]
Arch Linux — neovim — vulnerability — patch and remediation guide
🟠 High ⏱ 15–60 min Last verified: 25 May 2026 Affected versions: Arch Linux (rolling release) 📖 ~4 min read • Source: Arch ASA ASA-201611-29 Related CVEs: CVE-2016-1248 Upstream summary: Type: arbitrary command execution. Status: Fixed. Affected: 0.1.6-1. Fixed in: 0.1.7-1. Group: AVG-82. Table of contents Symptom & Impact Environment & Reproduction Root Cause […]
sshd Starts but Remote Access Still Fails
🟡 Medium ⏱ 5–30 min Last verified: 1 August 2019 📖 ~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 […]
What is MongoDB?
MongoDB, also known as Mongo, is an open-source document database used in many modern web applications. It is classified as a NoSQL database because it does not rely on a traditional table-based relational database structure.
