How to Install Jenkins on RHEL 7 Jenkins is the leading open-source automation server, used by development teams worldwide to build, test, and deploy software continuously. On Red Hat Enterprise Linux 7, getting Jenkins running requires a few deliberate steps: installing the correct version of Java, adding the official Jenkins repository, starting the service, and […]
š” Medium ā± 5ā30 min Last verified: 31 August 2019 š ~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 […]
Introduction to LDAP Security LDAP (Lightweight Directory Access Protocol) is the protocol that applications use to query and modify Active Directory. By default, Windows Server 2019 domain controllers accept LDAP connections on port 389 without requiring signing or channel binding, making them vulnerable to man-in-the-middle attacks where an attacker can intercept and relay LDAP authentication. […]
Rate limiting and connection throttling are essential defences against brute-force attacks, credential stuffing, and high-volume web scrapers. Nginx provides two built-in modules ā ngx_http_limit_req_module for request-rate limiting and ngx_http_limit_conn_module for connection limiting ā both compiled into the default binary. On RHEL 8 these capabilities are available immediately after installing Nginx from the AppStream module stream […]
š High ā± 5ā30 min Last verified: 30 August 2019 Affected versions: Ubuntu 16.04 LTS š ~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 […]
Introduction This guide explains how to Configure Database Backups with Automysqlbackup on Debian 9 on Debian 9 Stretch. Debian Stretch 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 9 install with […]
š High ā± 5ā30 min Last verified: 29 August 2019 Affected versions: Windows Server 2016 š ~1 min read Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution ā Primary Fix Solution ā Alternative Approaches Verification & Acceptance Criteria Rollback Plan Prevention & Hardening Related Errors […]
How to Configure DNSSEC on RHEL 7 DNS Security Extensions (DNSSEC) add a layer of cryptographic verification to the Domain Name System, protecting users from cache poisoning attacks, man-in-the-middle redirects, and forged DNS responses. By digitally signing DNS zone data, DNSSEC allows resolvers to confirm that the records they receive are authentic and unmodified. This […]
How to Set Up Windows Server 2016 Microsoft Passport Microsoft Passport, now formally named Windows Hello for Business in modern documentation, is a credential technology introduced with Windows 10 and Windows Server 2016 that replaces traditional passwords with strong two-factor authentication using public key cryptography. In the Windows Server 2016 timeframe, Microsoft Passport referred to […]
How to Set Up Windows Server 2016 Operations Manager System Center Operations Manager (SCOM) is Microsoft’s enterprise monitoring platform for Windows Server, Linux, network devices, and applications. SCOM uses management packs containing pre-built knowledge about specific technologies to automatically discover components, apply monitoring rules, generate alerts, and produce performance data. Deployed on Windows Server 2016, […]
