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In computer security, an access-control list (ACL) is a list of permissions [a] associated with a system resource (object or facility). An ACL specifies which users or system processes are granted access to resources, as well as what operations are allowed on given resources. [1] Each entry in a typical ACL specifies a subject and an operation.
This enables the server to select the correct virtual domain early and present the browser with the certificate containing the correct name. Therefore, with clients and servers that implement SNI, a server with a single IP address can serve a group of domain names for which it is impractical to get a common certificate.
When network access is granted to the user by the NAS, an Accounting Start (a RADIUS Accounting Request packet containing an Acct-Status-Type attribute with the value "start") is sent by the NAS to the RADIUS server to signal the start of the user's network access. "Start" records typically contain the user's identification, network address ...
It makes it more convenient to refer to a machine by name than by its IP address. Network naming can be hierarchical in nature, such as the Internet's Domain Name System. Indeed, the Internet employs several universally applicable naming methods: uniform resource name (URN), uniform resource locator (URL), and uniform resource identifier (URI).
This article lists common URI schemes.A Uniform Resource Identifier helps identify a source without ambiguity. Many URI schemes are registered with the IANA; however, there exist many unofficial URI schemes as well.
On the other hand, non-schema objects may include: [6] users; roles; contexts; directory objects; Schema objects do not have a one-to-one correspondence to physical files on disk that store their information. However, Oracle databases store schema objects logically within a tablespace of the database. The data of each object is physically ...
IP restrictions: The server may also restrict access to specific IP addresses or IP ranges. If the user's IP address is not included in the list of permitted addresses, a 403 status code is returned. Server configuration: The server's configuration can be set to prohibit access to certain files, directories, or areas of the website. This can be ...
A quarantine network is a restricted IP network that provides users with routed access only to certain hosts and applications. Quarantine is often implemented in terms of VLAN assignment; when a NAC product determines that an end-user is out-of-date, their switch port is assigned to a VLAN that is routed only to patch and update servers, not to ...