Debian Server OS Administration

• 🔐 Accessing a Debian Linux Host Using WinSCP

  This guide walks you through using **WinSCP**, a free SFTP and FTP client for Windows, to connect to your Debian Linux host. WinSCP allows for secure file transfers and basic file Few readers

• 🖥️ Accessing the Debian Control Panel

  For the smoothest setup experience—including copy-paste support and visual configuration—we recommend using the **Debian Control Panel**. Here’s how to access it from a web browserSome readers

• 🌐 [Advanced] PXE Boot Across Subnets

  ## 🧩 Overview This guide covers a more advanced ggRock PXE boot scenario involving clients located across multiple subnets, VLANs, or network segments. --- ## 🛠️ Problem In complexSome readers

• 📝 Enable Persistent Logging in Debian

  By default, **ggRock** does **not** configure your Debian server to keep logs between reboots. This means important logs may be lost after a restart—which can make troubleshooting Few readers

• 🔐 Enabling Remote Root SSH Access

  Sometimes, ggCircuit staff may request that you enable remote SSH access as the `root` user. This allows them to assist with system administration, image backups/restores, or troubFew readers

• 🔓 Enabling Root Login in Debian Control Panel (Debian 12 and 13)

  By default, Cockpit restricts root user logins via the `disallowed-users` list. To allow root access, you'll need to remove the `root` entry from this file. ### ✅ Steps to Enable RSome readers

• ggRock IPTABLES firewall Configuration

  ## This article is meant as a reference for how to configure the iptables firewall to permit ggRock functionality. Replace any placeholder values such as X.X.X.X/X and Y.Y.Y.Y/Y wiFew readers

• ⚕️ ggRock Remote Access (Static IP) Configuration

  Configuring a **static IP address** on your Debian-based ggRock server is essential for consistent network communication and remote access. Here's a streamlined guide to set it up:Few readers

• 🗄️ggRock Server NIC Teaming / Bonding / Link Aggregation

  This guide outlines recommended bonding configurations between a ggRock Server and network switches to ensure optimal performance and reliability. --- ## 📚 Table of Contents 1. [AbFew readers

• Guide to Installing a Custom SSL Certificate (Advanced)

  ## This unofficial guide to installing a custom SSL certificate on a ggRock server. ### Problem A custom SSL certificate may be desired based on company policy, or to enhance the sFew readers

• How to Access the Debian ggRock Server Console

  This article describes how to access the console of your Debian server running ggRock. You can access the server console via a direct connection to the server, SSH, or via Debian CSome readers

• How to Check ggRock Server NIC Speed

  This article describes steps necessary to check the NIC speed of your ggRock Server using the ifconfig command. Languag ### **Check ggRock Server NIC Speed** 1. Access the server cFew readers

• How to find your ggRock Server IP

  The intention of this article is to provide different ways to locate your ggRock server for admin tasks. Language 1. Open a Command Prompt window on a PC booted to your ggRock servFew readers

• Linux Kernel Local Privilege Escalation (LPE) Vulnerability Mitigations

  Linux Kernel Local Privilege Escalation - Fragnesia, Dirty Frag, Copy-Fail, ssh-keysign-pwn, nf_tables Typo, CIFSwitch, DirtyClone, SCTPhantom, ebtables SNAT Severity: Critical | Last Updated: 2026-08-14 | CVEs: CVE-2026-46300, CVE-2026-43284, CVE-2026-31431, CVE-2026-46333, CVE-2026-23111, CVE-2026-46243, CVE-2026-43503, CVE-2026-64564, CVE-2026-53266 CVE Codename Disclosed CVSS Patch Available CISA KEV CVE-2026-46300 Fragnesia 2026-05-13 7.8 HighSome readers

• Prevent Debian from Failing to Boot When a USB Backup Drive Is Missing

  Prevent Debian from Failing to Boot When a USB Backup Drive Is Missing When a removable drive (such as a USB backup disk) is listed in /etc/fstab, Debian will attempt to mount it during boot. If the device is missing, the system may pause while waiting for the device to appear. This article explains how to configure the mount so the system boots normally even if the USB drive is not connected. 🧩 Overview If a device listed in /etc/fstab cannot be mounted, systemd may: Delay bootFew readers

• 🔄 Replacing the Network Card in Your ggRock Server

  ### ❗ Problem You need to replace or upgrade the **network card** in your Debian-based ggRock server—either due to failure, hardware upgrade, or performance reasons. --- ### ✅ SoluFew readers

• 🔧 Resetting the Root Password on Debian

  If you've forgotten the root password on your Debian system, you can reset it by following these steps: ### 1. Reboot the System If your system is running, restart it. ### 2. AccesFew readers

• ⏰ Scheduling a Reboot in Advance on Debian Linux (Using shutdown)

  || To schedule a reboot for 5:30 PM today (based on the number of minutes from now), with a time check, follow these steps. 1. **Check Server Time:** * Open a terminal and log in. Few readers

• 🌐 Set System Language/Locale to en_US.UTF-8 (Required for ggRock)

  ### ❗ Problem The ggRock Server Application **requires the system locale to be set to** `en_US.UTF-8` to function properly. Using a different locale may cause: * Errors on the **ArFew readers

• Setting your ggrock server back to DHCP so that it may get a new IP address

  Grab a copy of these commands before proceeding ip a cat /etc/network/interfaces cat /etc/resolv.conf Once that is done, we need to make a backup of the interface file cp /etc/netwFew readers

Getting Started with ggRock

• Adding a New Machine Type to a ggRock Image using the ggRock Seamless Boot Procedure

  Adding a New Machine Type to a ggRock Image using the ggRock Seamless Boot Procedure This article details processes for adding a new PC/motherboard type to an existing ggRock systeSome readers

• Update Windows System Image using ggRock Image Creation Tool (Deprecated)

  This article details the process updating Windows System Image for ggRock, including Windows 2004 and Windows 20H2+ (2020+) To update ggRock from the currently recommended 1809 to Few readers

• Update Windows System Image using Seamless Boot

  This article describes necessary processes for installing the latest security updates or feature updates in a ggRock System Image. ### **Problem** Microsoft has released security aFew readers

• ggRock Web Admin Graphical Overview

  ![](https://ggcircuit.atlassian.net/wiki/download/attachments/15859883/57735fe3-0524-48cd-9524-1bb94b577cad-cvs150513.png?version=1&modificationDate=1755525906227&cacheVersion=1&apFew readers

• Network Driver Problems? No Problem!

  Practical, copy-ready step-by-step for techs: boot a VM to **Local Drives** (work on the image), run SDI to grab network driverpacks, use `pnputil` to add/install the `.inf` files,Few readers

• New Features

  Elevate your workflow and transform the way your centers work with our new features. Our latest release is here to enhance your productivity and center management. Exi L #### ReleaFew readers