{"id":3353,"date":"2025-10-06T16:11:06","date_gmt":"2025-10-06T14:11:06","guid":{"rendered":"https:\/\/tecnologia.euroinnova.com\/cifs-que-es-y-como-funciona-el-common-internet-file-system\/"},"modified":"2026-08-05T11:07:19","modified_gmt":"2026-08-05T09:07:19","slug":"cifs","status":"publish","type":"post","link":"https:\/\/tecnologia.euroinnova.com\/en\/cifs","title":{"rendered":"CIFS: What is the Common Internet File System and how does it work?"},"content":{"rendered":"

File sharing over a network is a basic necessity in corporate, academic and domestic environments. For decades, various protocols have sought to facilitate this process, with varying degrees of success. Against this backdrop, the Common Internet File System (CIFS)<\/strong> It has played a prominent role as a widely adopted solution for sharing files between computers running different operating systems.<\/p>\n

Although it has gradually been replaced by more modern implementations of the protocol SMB (Server Message Block)<\/strong>, CIFS remains a key component of many architectures, particularly in hybrid environments and those involving legacy systems. This guide explores in depth what CIFS is, how it works, and what sets it apart from alternatives such as NFS<\/strong>, and how to implement it in current systems (including Windows and Linux platforms and mixed environments).<\/p>\n

What is CIFS and how does it work?<\/strong><\/h2>\n

CIFS (Common Internet File System)<\/strong> It is a network protocol that allows users to access and manipulate remote files as if they were local. It operates on a client-server architecture, in which the client sends requests to access shared resources (files, printers, directories) and the CIFS server responds by providing those resources, provided that the necessary permissions have been configured.<\/p>\n

This protocol is a specific and older implementation of SMB (Server Message Block)<\/strong>, originally developed by Microsoft. CIFS operates at the application layer of the OSI model and relies on TCP\/IP as its transport protocol, generally on port TCP 445<\/strong>.<\/p>\n

From a technical perspective, CIFS enables operations such as:<\/p>\n