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The application must be able to regenerate or restore the data. The cached files can be deleted without loss of data. /var/lib: State information. Persistent data modified by programs as they run (e.g., databases, packaging system metadata, etc.). /var/lock: Lock files. Files keeping track of resources currently in use. /var/log: Log files ...
HackThisSite is also host to a series of "missions" aimed at simulating real world hacks. These range from ten basic missions where one attempts to exploit relatively simple server-side scripting errors, to difficult programming and application cracking missions.
The dbm library stores arbitrary data by use of a single key (a primary key) in fixed-size buckets and uses hashing techniques to enable fast retrieval of the data by key. The hashing scheme used is a form of extendible hashing, so that the hashing scheme expands as new buckets are added to the database, meaning that, when nearly empty, the ...
The key data structure is the "node". Similar to traditional file structures, F2FS has three types of nodes: inode, direct node, indirect node. F2FS assigns 4 KB to an inode block which contains 923 data block indices, two direct node pointers, two indirect node pointers, and one double indirect node pointer as described below.
Polyinstantiation in computer science is the concept of type (class, database row or otherwise) being instantiated into multiple independent instances (objects, copies). It may also indicate, such as in the case of database polyinstantiation, that two different instances have the same name (identifier, primary key).
A database system where an application developer directly uses an application programming interface to search indexes in order to locate records in data files. In contrast, a relational database uses a query optimizer which automatically selects indexes. [2] An indexing algorithm that allows both sequential and keyed access to data. [3]
In Linux, the file specified by interpreter can be executed if it has the execute rights and is one of the following: a native executable, such as an ELF binary; any kind of file for which an interpreter was registered via the binfmt_misc mechanism (such as for executing Microsoft .exe binaries using wine) another script starting with a shebang
It contains a list of lists of untyped key–value pairs. [5] Two files control system-wide settings: OS2.INI and OS2SYS.INI. Application developers can choose whether to use them or to create a specific file for their applications.