Dhcp

How to Configure DHCP Server with dhcpd on RHEL 10 — step-by-step RHEL 10 tutorial on Progressive Robot

How to Configure DHCP Server with dhcpd on RHEL 10

Introduction This tutorial demonstrates how to Configure DHCP Server with dhcpd 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 […]

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How to Configure a Static IP Address with NetworkManager on RHEL 9 — step-by-step RHEL 9 tutorial on Progressive Robot

How to Configure a Static IP Address with NetworkManager on RHEL 9

NetworkManager is the default network management service on RHEL 9, and it provides a powerful command-line tool called nmcli for configuring network interfaces. Assigning a static IP address is a common requirement for servers that need a predictable, stable address on the network. This tutorial walks through every method available on RHEL 9 to configure […]

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How to Install and Configure OpenVPN on RHEL 9 — step-by-step RHEL 9 tutorial on Progressive Robot

How to Install and Configure OpenVPN on RHEL 9

OpenVPN is a mature, battle-tested VPN solution that supports TLS-based encryption and X.509 certificate authentication, making it well-suited for enterprise environments where certificate lifecycle management and strong mutual authentication are required. Unlike WireGuard, OpenVPN can traverse firewalls over TCP port 443, which is useful when UDP is blocked. On RHEL 9, OpenVPN 2.x is available […]

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How to Configure DirectAccess with IPv6 on Windows Server 2012 R2 — step-by-step Windows Server 2012 R2 tutorial on Progressive Robot

How to Configure DirectAccess with IPv6 on Windows Server 2012 R2

How to Configure Windows Server 2012 R2 as a VPN Server with SSTP Secure Socket Tunneling Protocol (SSTP) is a VPN protocol that encapsulates PPP traffic inside HTTPS, using port 443 for all VPN data. This makes SSTP the most firewall-friendly VPN protocol available — it works through virtually any firewall, NAT device, or web […]

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How to Configure DHCP Failover on Windows Server 2012 R2 — step-by-step Windows Server 2012 R2 tutorial on Progressive Robot

How to Configure DHCP Failover on Windows Server 2012 R2

How to Configure DHCP Failover on Windows Server 2012 R2 DHCP Failover is a new feature introduced in Windows Server 2012 R2 that allows two DHCP servers to share a pool of IP addresses for one or more subnets. Before this feature, providing redundant DHCP service required manual IP range splitting (the 80/20 rule) — […]

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How to Configure IPv6 on Windows Server 2012 R2 — step-by-step Windows Server 2012 R2 tutorial on Progressive Robot

How to Configure IPv6 on Windows Server 2012 R2

How to Configure IPv6 on Windows Server 2012 R2 IPv6 is the successor to IPv4, offering a vastly larger address space (128-bit addresses versus IPv4’s 32-bit), improved routing efficiency, mandatory IPsec support, and built-in autoconfiguration capabilities. Windows Server 2012 R2 has first-class support for IPv6 and is actually designed to prefer IPv6 over IPv4 by […]

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How to Install and Configure RRAS on Windows Server 2012 R2 — step-by-step Windows Server 2012 R2 tutorial on Progressive Robot

How to Install and Configure RRAS on Windows Server 2012 R2

How to Install and Configure RRAS on Windows Server 2012 R2 Routing and Remote Access Service (RRAS) is a comprehensive Windows Server feature that provides a wide range of network services including VPN server, dial-up remote access, network address translation (NAT), demand-dial routing, and multi-protocol LAN-to-LAN and LAN-to-WAN routing. On Windows Server 2012 R2, RRAS […]

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How to Set Up Network Access Protection (NAP) on Windows Server 2012 R2 — step-by-step Windows Server 2012 R2 tutorial on Progressive Robot

How to Set Up Network Access Protection (NAP) on Windows Server 2012 R2

How to Set Up Network Access Protection (NAP) on Windows Server 2012 R2 Network Access Protection (NAP) is a policy enforcement platform included in Windows Server 2012 R2 that evaluates the health state of client computers before granting them full network access. NAP can check whether clients have current OS patches, antivirus definitions, Windows Firewall […]

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How to Configure IPsec for Server-to-Server Encryption on Windows Server 2012 R2 — step-by-step Windows Server 2012 R2 tutorial on Progressive Robot

How to Configure IPsec for Server-to-Server Encryption on Windows Server 2012 R2

How to Configure IPsec for Server-to-Server Encryption on Windows Server 2012 R2 Internet Protocol Security (IPsec) provides authentication and encryption at the IP layer, ensuring that traffic between servers cannot be intercepted or tampered with even if an attacker has gained access to the network segment. On Windows Server 2012 R2, IPsec is configured through […]

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How to Configure Network Interface Settings with nmcli and ip on RHEL 9 — step-by-step RHEL 9 tutorial on Progressive Robot

How to Configure Network Interface Settings with nmcli and ip on RHEL 9

Network configuration on RHEL 9 is managed by NetworkManager, and the primary tools for working with it are nmcli (NetworkManager Command-Line Interface) and the traditional ip command from the iproute2 package. Understanding both is essential: nmcli creates persistent network profiles that survive reboots and are managed by NetworkManager, while the ip command makes temporary changes […]

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