Operations

How to Install Go on FreeBSD 15 — step-by-step FreeBSD 15 tutorial on Progressive Robot

How to Install Go on FreeBSD 15

Introduction How to Install Go on FreeBSD 15 is a core administration task for any FreeBSD 15 server operator. FreeBSD 15 ships with the 15.0-RELEASE kernel, ZFS as the default root filesystem, Capsicum capability sandboxing improvements, and an updated ports tree. Unlike Linux distributions, FreeBSD uses rc(8) for service management, pf for packet filtering, and […]

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How to Detect Rootkits with rkhunter and chkrootkit on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Detect Rootkits with rkhunter and chkrootkit on RHEL 7

How to Detect Rootkits with rkhunter and chkrootkit on RHEL 7 A rootkit is a collection of malicious software designed to maintain persistent, hidden access to a compromised system while concealing its presence from the administrator and standard system tools. Once installed, rootkits can replace core binaries, hide processes and network connections, and exfiltrate data […]

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How to Manage Node.js Versions with nvm on FreeBSD 15 — step-by-step FreeBSD 15 tutorial on Progressive Robot

How to Manage Node.js Versions with nvm on FreeBSD 15

Introduction How to Manage Node.js Versions with nvm on FreeBSD 15 is a core administration task for any FreeBSD 15 server operator. FreeBSD 15 ships with the 15.0-RELEASE kernel, ZFS as the default root filesystem, Capsicum capability sandboxing improvements, and an updated ports tree. Unlike Linux distributions, FreeBSD uses rc(8) for service management, pf for […]

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How to Configure nftables Firewall on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Configure nftables Firewall on RHEL 7

How to Configure nftables Firewall on RHEL 7 nftables is the modern successor to iptables, combining the functionality of iptables, ip6tables, arptables, and ebtables into a single, unified framework with a cleaner syntax, better performance, and native support for atomic rule replacement. While firewalld is the default front end on RHEL 7, nftables is available […]

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How to Install Node.js 20 on FreeBSD 15 — step-by-step FreeBSD 15 tutorial on Progressive Robot

How to Install Node.js 20 on FreeBSD 15

Introduction How to Install Node.js 20 on FreeBSD 15 is a core administration task for any FreeBSD 15 server operator. FreeBSD 15 ships with the 15.0-RELEASE kernel, ZFS as the default root filesystem, Capsicum capability sandboxing improvements, and an updated ports tree. Unlike Linux distributions, FreeBSD uses rc(8) for service management, pf for packet filtering, […]

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How to Install pip and Manage Python Packages on FreeBSD 15 — step-by-step FreeBSD 15 tutorial on Progressive Robot

How to Install pip and Manage Python Packages on FreeBSD 15

Introduction How to Install pip and Manage Python Packages on FreeBSD 15 is a core administration task for any FreeBSD 15 server operator. FreeBSD 15 ships with the 15.0-RELEASE kernel, ZFS as the default root filesystem, Capsicum capability sandboxing improvements, and an updated ports tree. Unlike Linux distributions, FreeBSD uses rc(8) for service management, pf […]

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How to Configure iptables Firewall Rules on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Configure iptables Firewall Rules on RHEL 7

How to Configure iptables Firewall Rules on RHEL 7 RHEL 7 ships with firewalld as the default firewall management layer, but many system administrators prefer to work directly with iptables, the underlying Linux netfilter framework. iptables provides precise, stateful packet filtering through a chain-based rule system and is the right choice when you need fine-grained […]

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How to Create Python Virtual Environments on FreeBSD 15 — step-by-step FreeBSD 15 tutorial on Progressive Robot

How to Create Python Virtual Environments on FreeBSD 15

Introduction Deploying create python virtual environments 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 + ports […]

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How to Set Up Two-Factor Authentication for SSH with Google Authenticator on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Set Up Two-Factor Authentication for SSH with Google Authenticator on RHEL 7

How to Set Up Two-Factor Authentication for SSH with Google Authenticator on RHEL 7 Password-based SSH authentication is vulnerable to brute-force attacks, credential stuffing, and phishing. Adding a second authentication factor — a time-based one-time password (TOTP) generated by an app like Google Authenticator or Authy — dramatically reduces this risk. Even if an attacker […]

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How to Install Python 3.12 on FreeBSD 15 — step-by-step FreeBSD 15 tutorial on Progressive Robot

How to Install Python 3.12 on FreeBSD 15

Introduction Deploying install python 3.12 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 + ports approach […]

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