How to Configure strongSwan IPsec VPN on RHEL 10
Introduction This tutorial demonstrates how to Configure strongSwan IPsec VPN on RHEL 10 on RHEL 10. It is written for administrators who want a repeatable, well-explained walkthrough that goes beyond a bare command list and explains each configuration choice. Every command is tested against a freshly registered RHEL 10 system with the default AppStream repositories […]
How To Import Existing the cloud provider Assets into Terraform
Terraform is an infrastructure as code tool created by HashiCorp that helps developers with deploying, updating, and removing different assets of their infrastructure in an efficient and more scalable way. In this tutorial you’ll import existing the cloud provider infrastructure into Terraform. By the end of this tutorial you’ll be able to use Terraform for all of your existing infrastructure in addition to creating new assets.
How to Find Standard Deviation in R?
Learn how to find standard deviation in R with sd(). Covers sample vs population SD, dplyr group stats, and examples. Try the code now.
SLES 15 — bash — multiple vulnerabilities (8 CVEs) — patch and remediation guide
🟠 High ⏱ 15–60 min Last verified: 25 May 2026 Affected versions: SLES 15 📖 ~4 min read • Source: SUSE advisory SUSE-SU-2014:1212-1 (see also SUSE bugzilla) Related CVEs: CVE-2014-6271 CVE-2014-6277 CVE-2014-6278 CVE-2014-7169 CVE-2014-7186 CVE-2014-7187 CVE-2016-9401 CVE-2014-2524 Upstream summary: GNU Bash through 4.3 processes trailing strings after function definitions in the values of environment […]
Command Design Pattern
Command Pattern is one of the Behavioral Design Pattern. Command design pattern is used to implement loose coupling in a request-response model. Command Pattern  In command pattern, the request is send to the invoker and invoker pass it to the encapsulated command object. Command object passes the request to the […]
How To Build Maps in Angular with Leaflet, Part 1: Generating Maps
Learn how to build dynamic and stylish maps in Angular using Leaflet.
How to Set Up Apache Tomcat 10 on RHEL 10
Introduction Setting up set up apache tomcat 10 on a RHEL 10 server is a common task for system administrators, DevOps engineers, and site reliability engineers. This guide explains how to Set Up Apache Tomcat 10 on RHEL 10, with all the commands you need, the SELinux and firewalld considerations to keep in mind, and […]
openSUSE Tumbleweed — netdata — multiple vulnerabilities (4 CVEs) — patch and remediation guide
🟡 Medium ⏱ 10–30 min Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read • Source: SUSE advisory openSUSE-SU-2021:0647-1 (see also SUSE bugzilla) Related CVEs: CVE-2018-18836 CVE-2018-18837 CVE-2018-18838 CVE-2018-18839 Upstream summary: An issue was discovered in Netdata 1.10.0. JSON injection exists via the api/v1/data tqx parameter because of web_client_api_request_v1_data in […]
Ubuntu 18.04 Time Sync Drift Causes TLS and Login Issues
🟡 Medium ⏱ 5–30 min Last verified: 19 May 2026 📖 ~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 […]
