How to Audit Linux Security with Lynis on RHEL 7 Maintaining a secure Linux server requires more than installing updates and setting strong passwords. A comprehensive security audit reveals configuration weaknesses, missing hardening measures, and potential vulnerabilities before attackers can exploit them. Lynis is an open-source security auditing tool that performs an in-depth scan of […]
Introduction This guide explains how to Install Elasticsearch on FreeBSD 15 on FreeBSD 15. FreeBSD uses the pkg(8) binary package manager, rc.conf(5) for service startup configuration, and pf(4) as its primary packet filter. There is no SELinux or AppArmor — instead, FreeBSD provides the MAC (Mandatory Access Control) framework and Capsicum for fine-grained privilege separation. […]
How to Configure SELinux on RHEL 7 SELinux (Security-Enhanced Linux) is a mandatory access control (MAC) system built into the Linux kernel and enabled by default on every RHEL 7 installation. Unlike traditional Unix discretionary access control (DAC), which lets file owners decide who can access their files, SELinux enforces a policy defined by the […]
Introduction This guide explains how to Configure PostgreSQL Point-in-Time Recovery on FreeBSD 15 on FreeBSD 15. FreeBSD uses the pkg(8) binary package manager, rc.conf(5) for service startup configuration, and pf(4) as its primary packet filter. There is no SELinux or AppArmor — instead, FreeBSD provides the MAC (Mandatory Access Control) framework and Capsicum for fine-grained […]
Introduction Deploying set up mariadb galera cluster on a FreeBSD 15 machine differs from Linux in several important ways: packages come from the FreeBSD Ports Collection or the binary pkg repository, services are registered in /etc/rc.conf via sysrc(8), and firewall rules are written in pf.conf(5) syntax. This tutorial stays entirely within the standard base + […]
How to Install ClamAV Antivirus on RHEL 7 ClamAV is the leading open-source antivirus engine used on Linux servers, primarily for scanning files shared with Windows clients, email attachments passing through mail gateways, and uploaded content on web servers. While RHEL 7 itself is rarely the target of self-propagating malware, compliance frameworks such as PCI-DSS, […]
Introduction This guide explains how to Configure MySQL Binary Log on FreeBSD 15 on FreeBSD 15. FreeBSD uses the pkg(8) binary package manager, rc.conf(5) for service startup configuration, and pf(4) as its primary packet filter. There is no SELinux or AppArmor — instead, FreeBSD provides the MAC (Mandatory Access Control) framework and Capsicum for fine-grained […]
How to Install and Configure OpenVPN on RHEL 7 OpenVPN is one of the most widely deployed VPN solutions in the enterprise, valued for its flexibility, strong encryption, and compatibility across nearly every operating system. On RHEL 7, OpenVPN is not included in the base repositories but is available from EPEL. Building a proper PKI […]
Introduction FreeBSD 15 is a UNIX-derived operating system renowned for its network stack performance, ZFS integration, and Jail isolation primitives. Setting up set up proxysql for mysql load balancing on FreeBSD 15 follows the rc.conf/service(8) paradigm rather than systemd, which means enabling a service and configuring its startup options are done differently from any Linux […]
How to Set Up WireGuard VPN on RHEL 7 WireGuard is a modern, high-performance VPN protocol built directly into the Linux kernel (from 5.6 onward) and available as a DKMS module on older kernels like those shipped with RHEL 7. Compared to OpenVPN and IPsec, WireGuard has a dramatically smaller codebase, faster handshake times, and […]
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