The Hadoop Distributed File System (HDFS) is a distributed file system that runs on standard or low-end hardware. Developed by Apache Hadoop, HDFS works like a standard distributed file system but provides better data throughput and access through the MapReduce algorithm, high fault tolerance and native support of large data sets.
Single sign-on (SSO) is an authentication process that allows a user to access multiple applications with one set of login credentials. SSO is a common procedure in enterprises, where a client accesses multiple resources connected to a local area network (LAN).
SSO advantages include:
With SSO, a user logs in once and gains access to different applications, without the need to re-enter log-in credentials at each application. SSO authentication facilitates seamless network resource usage. SSO mechanisms vary, depending on application type.
SSO is not suited for systems requiring guaranteed access, as the loss of log-in credentials results into denial of access to all systems. Ideally, SSO is used with other authentication techniques, such as smart cards and one-time password tokens.
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