--- title: "NAS glossary" slug: "nas-glossary" updated: 2026-09-17T09:18:20Z published: 2026-09-17T09:18:20Z canonical: "guide.ncloud-docs.com/nas-glossary" stale: true --- > ## Documentation Index > Fetch the complete documentation index at: https://guide.ncloud-docs.com/llms.txt > Use this file to discover all available pages before exploring further. # NAS glossary Available in Classic and VPC There are a few terms you need to know to use NAS. The terms and their descriptions are as follows. ### Classic environment A platform that does not provide VPC (Virtual Private Cloud), a customer-only private network, on public cloud ### Common Internet File System (CIFS) The extended version of the SMB protocol to share files on the network, which is a standard internet file protocol that supports both the Windows and Unix environments. ### Network File System (NFS) A network distributed file system protocol that enables the Linux server to mount and use some of the file systems on another host. ### Sub Account A NAVER Cloud Platform service that creates sub accounts under a main account to enable permission management by job role ### User Created Policies arbitrarily created by account users on Sub Account of NAVER Cloud Platform ### VPC environment A platform that provides VPC (Virtual Private Cloud), a customer-only private network, on public cloud ### Network-Attached Storage (NAS) A NAVER Cloud Platform service that provides storage that can be used by multiple servers connected via network ### Mount Creating a path to access a storage device and registering the storage device in the directory system that can be used by the operating system. ### Snapshot Feature that can store storage data of a certain point as if taking a snapshot, and recover it in a new disk format when the stored data is required. Using storage snapshot, you can always recover data from when it was saved to a desired server. ### Access Control Group (ACG) A NAVER Cloud Platform service that manages network access to the server using filters based on IP address and port number ### Access Control List (ACL) ist of records of subjects with access to specific objects of buckets approved, as well as items of which the subjects gained access to ### Port Forwarding A function of forwarding the communication request toward a specific IP address and port number to another IP address and port, which is used when creating a service for the host residing in the internal network (mapping the destination IP address and port number to the internal host). Note To see a full list of terms and definitions, go to [Glossary](https://www.ncloud.com/guideCenter/glossary) from the NAVER Cloud Platform portal.