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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.
When applied to a fully qualified domain name (FQDN) the host command will return information associated with that name such as its IP address and mail handling host. It can also be used to list all members of a domain. [2] The host command is also able to perform reverse IP lookups to find the FQDN associated with an IP address. [3]
This is a list of commands from the GNU Core Utilities for Unix environments. These commands can be found on Unix operating systems and most Unix-like operating systems. GNU Core Utilities include basic file, shell and text manipulation utilities. Coreutils includes all of the basic command-line tools that are expected in a POSIX system.
resolv.conf is a computer file used in various operating systems to configure the system's Domain Name System (DNS) resolver.The file is a plain-text file usually created by the network administrator or by applications that manage the configuration tasks of the system.
It includes all commands that are standardized by the Internet Engineering Task Force (IETF) in RFC 959, plus extensions. Note that most command-line FTP clients present their own non-standard set of commands to users. For example, GET is the common user command to download a file instead of the raw command RETR.
If you name them then you get unknown:hpdj930c, and unknown1:pagepro13502 for example. Without those names in the hosts file you would instead get unknown:192.168.1.121 and unknown1:192.168.1.123 for example. So making hosts file entries is the only way those printers will get a name. The name may look goofy, but that is the best you will ever get.
These may include insert positions for automatic header file inclusion, commands to set the file's syntax highlighting mode, [15] or the file's revision number. [16] These functional control comments are also commonly referred to as annotations. Keeping documentation within source code comments is considered as one way to simplify the ...
It loads the contents of /etc/hosts, so that local host names which do not appear in the global DNS can be resolved. This also means that records added to your local /etc/hosts file with the format "0.0.0.0 annoyingsite.com" can be used to prevent references to "annoyingsite.com" from being resolved by your browser.