Proxmox VE
Proxmox VE 8 is built on top of this popular, highly stable Linux distribution.
What is Debian?
This Microsoft directory service acts as the central authority for authenticating users and computers on a Windows network.
What is Active Directory?
You type this two-letter command to list the files and folders inside your current directory.
What is ls?
CEPH is a distributed storage system designed to eliminate this, meaning no single hardware failure will bring down the whole system.
What is a Single Point of Failure (SPOF)?
A primary benefit of a cluster is this two-word term, which refers to a system's ability to remain accessible even if a single server crashes.
What is High Availability (HA)?
Proxmox supports two main types of virtualization: KVM for virtual machines, and this technology for lightweight, OS-level virtualization.
What are LXC (Linux Containers)?
These are the sub-containers within an AD domain used to organize users and computers, and to apply specific Group Policies.
What are Organizational Units (OUs?)
If you get lost navigating your server, this command will print your current working directory path to the screen.
What is pwd?
In a CEPH cluster, these daemons store the actual data. You typically have one of these running for every physical hard drive or SSD.
What is an OSD (Object Storage Daemon)?
This feature allows you to move a running virtual machine from one physical Proxmox node to another without dropping network connections.
What is Live Migration?
By default, you access the Proxmox web-based management interface via HTTPS on this specific port number.
What is port 8006?
This powerful Active Directory feature allows administrators to push configurations, enforce security rules, and map network drives across the domain.
What is Group Policy (or GPOs)?
This command allows a standard user to execute a command with root or administrative privileges.
What is sudo?
This CEPH daemon maintains maps of the cluster state, which is essential for all components to coordinate and function.
What is a Monitor (MON)?
To prevent a "split-brain" scenario, a cluster needs a strict voting majority of nodes to stay online. This majority is referred to by this term.
What is a Quorum?
This built-in Proxmox feature allows you to take a point-in-time, restorable copy of a Virtual Machine's state and data.
What is a snapshot?
To create a new Active Directory domain, a standard Windows Server must be promoted to this specific role.
What is a Domain Controller (DC)?
To change the read, write, and execute permissions on a file or directory in Linux, you use this command.
What is chmod?
CEPH provides distributed block storage that integrates perfectly with Proxmox for VM disks, commonly referred to by this three-letter acronym.
What is RBD (RADOS Block Device)?
Because clustering requires fast and reliable communication for state syncs and storage, it is best practice to put cluster traffic on its own dedicated one of these.
What is a network (or VLAN/subnet)?
In Proxmox storage terminology, this is a network file system protocol commonly used to attach shared storage for ISOs and backups over a local network.
What is NFS (Network File System)?
Active Directory is entirely dependent on this network protocol to resolve hostnames and locate domain services.
What is DNS (Domain Name System)?
This command is used to search for a specific text string or pattern within a file or stream of text.
What is grep?
This algorithm is the mathematical heart of CEPH. It calculates exactly where data should be stored and retrieved without needing a central lookup table.
What is CRUSH (Controlled Replication Under Scalable Hashing)?
In a High Availability cluster, this extreme, automated action forces an unresponsive node to physically power off or reboot so it doesn't corrupt shared storage.
What is Fencing (or STONITH)?