Boot Startup

How to Configure Trusted Execution on IBM AIX 7.1 — step-by-step IBM AIX 7.1 tutorial on Progressive Robot

How to Configure Trusted Execution on IBM AIX 7.1

Introduction IBM AIX 7.1 is the latest release of IBM’s enterprise-grade UNIX operating system, running on IBM Power Systems hardware. Known for its reliability, security, and performance in mission-critical environments, AIX 7.1 introduces enhanced virtualization, security hardening, and cloud integration features. This guide covers how to configure trusted execution on ibm aix 7.1 on IBM […]

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How to Set Up Nexus Repository Manager on FreeBSD 12 — step-by-step FreeBSD 12 tutorial on Progressive Robot

How to Set Up Nexus Repository Manager on FreeBSD 12

Introduction Deploying set up nexus repository manager on freebsd 12 on a FreeBSD 12 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 […]

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How to Configure OpenDKIM with Postfix on Debian 10 — step-by-step Debian 10 tutorial on Progressive Robot

How to Configure OpenDKIM with Postfix on Debian 10

Introduction Deploying configure opendkim with postfix on debian 10 on a Debian 10 Buster machine is straightforward thanks to Debian’s policy-compliant packaging. Unlike rpm-based distributions, Debian stores configuration helpers in /etc/default/, uses update-rc.d for older init scripts, and provides dpkg-reconfigure for interactive package configuration. This tutorial stays on the systemd path throughout. Prerequisites You will […]

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How to Detect Rootkits with rkhunter on FreeBSD 12 — step-by-step FreeBSD 12 tutorial on Progressive Robot

How to Detect Rootkits with rkhunter on FreeBSD 12

Introduction This guide explains how to Detect Rootkits with rkhunter on FreeBSD 12 on FreeBSD 12. 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 […]

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How to Set Up HAProxy Load Balancer on Debian 9 — step-by-step Debian 9 tutorial on Progressive Robot

How to Set Up HAProxy Load Balancer on Debian 9

Introduction How to Set Up HAProxy Load Balancer on Debian 9 is a fundamental operation for any administrator maintaining a Debian 9 Stretch server. Debian 9 Stretch ships with the Linux 6.12 kernel, updated toolchains, and a fully refreshed package archive — meaning version numbers, configuration file paths, and some dependency chains differ from Debian […]

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How to Set the Hostname and FQDN on Debian 10 — step-by-step Debian 10 tutorial on Progressive Robot

How to Set the Hostname and FQDN on Debian 10

Introduction Deploying set the hostname and fqdn on debian 10 on a Debian 10 Buster machine is straightforward thanks to Debian’s policy-compliant packaging. Unlike rpm-based distributions, Debian stores configuration helpers in /etc/default/, uses update-rc.d for older init scripts, and provides dpkg-reconfigure for interactive package configuration. This tutorial stays on the systemd path throughout. Prerequisites Ensure […]

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How to Tune Kernel Parameters with sysctl on Debian 10 — step-by-step Debian 10 tutorial on Progressive Robot

How to Tune Kernel Parameters with sysctl on Debian 10

Introduction Deploying tune kernel parameters with sysctl on debian 10 on a Debian 10 Buster machine is straightforward thanks to Debian’s policy-compliant packaging. Unlike rpm-based distributions, Debian stores configuration helpers in /etc/default/, uses update-rc.d for older init scripts, and provides dpkg-reconfigure for interactive package configuration. This tutorial stays on the systemd path throughout. Prerequisites Before […]

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How to Set Up iocage Jail Storage on FreeBSD 12 — step-by-step FreeBSD 12 tutorial on Progressive Robot

How to Set Up iocage Jail Storage on FreeBSD 12

Introduction How to Set Up iocage Jail Storage on FreeBSD 12 is a core administration task for any FreeBSD 12 server operator. FreeBSD 12 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 Install and Configure ISC DHCP Server on Debian 10 — step-by-step Debian 10 tutorial on Progressive Robot

How to Install and Configure ISC DHCP Server on Debian 10

Introduction Deploying install and configure isc dhcp server on debian 10 on a Debian 10 Buster machine is straightforward thanks to Debian’s policy-compliant packaging. Unlike rpm-based distributions, Debian stores configuration helpers in /etc/default/, uses update-rc.d for older init scripts, and provides dpkg-reconfigure for interactive package configuration. This tutorial stays on the systemd path throughout. Prerequisites […]

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How to Set Up Link Aggregation (EtherChannel) on IBM AIX 7.2 — step-by-step IBM AIX 7.2 tutorial on Progressive Robot

How to Set Up Link Aggregation (EtherChannel) on IBM AIX 7.2

Introduction IBM AIX 7.2 is the latest release of IBM’s enterprise-grade UNIX operating system, running on IBM Power Systems hardware. Known for its reliability, security, and performance in mission-critical environments, AIX 7.2 introduces enhanced virtualization, security hardening, and cloud integration features. This guide covers how to set up link aggregation (etherchannel) on ibm aix 7.2 […]

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