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The hosts file is one of several system facilities that assists in addressing network nodes in a computer network. It is a common part of an operating system's Internet Protocol (IP) implementation, and serves the function of translating human-friendly hostnames into numeric protocol addresses, called IP addresses, that identify and locate a host in an IP network.
COMMAND: The command to run (add, delete, change, get, monitor, flush)-net: <dest> is a network address-host: <dest> is host name or address (default)-netmask: the mask of the route <dest>: IP address or host name of the destination <gateway>: IP address or host name of the next-hop router
The local host administrators can create and install manual pages associated with the specific host. A manual end user may invoke a documentation page by issuing the man command followed by the specific detail they require. These manual pages are typically requested by end users, programmers and administrators doing real time work but can also ...
The termcap (for "terminal capabilities") library was developed for BSD systems. It uses a database stored in the file /etc/termcap.This database consists of a series of records (each of which consists of one or more lines in the file, joined by backslash characters at the ends of each line that continues onto a following one) each of which represents the capabilities of a particular terminal.
The default content of the root user's files may also have issues, as well as the skeleton files the system provides to new user accounts upon setup. The startup scripts that launch the X window system may also do surprising things with the user's Bash startup scripts in an attempt to set up user-environment variables before launching the ...
All of this needs to be hid from the outside world. Relevant entries added to all of the hosts file on the LAN is a fast, easy way to do that. Trying to create inner / outer DNS servers is usually well beyond the technical expertise of most people. Adding these hosts to a hosts file is a much easier way to do this.
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getent is a Unix command that helps a user get entries in a number of important text files called databases. This includes the passwd and group databases which store user information – hence getent is a common way to look up user details on Unix.