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The configuration for each service usually includes a switch to control whether xinetd should enable or disable the service. An example configuration file for the RFC 868 time server: # default: off # description: An RFC 868 time server. This protocol provides a # site-independent, machine readable date and time.
Below is a list of FTP commands that may be sent to a File Transfer Protocol (FTP) server. 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
The Name Service Switch (NSS) is a feature found in the standard C library of various Unix-like operating systems that connects a computer with a variety of sources of common configuration databases and name resolution mechanisms. [1]
Settings may be in a different location in each email client, though the AOL server and port settings will always be the same. For additional questions specific to the email client, check the manufacturer’s website. Manufacturers cannot answer questions about your AOL Mail settings, or your AOL username or password.
The remote shell (rsh) is a command-line computer program that can execute shell commands as another user, and on another computer across a computer network. The remote system to which rsh connects runs the rsh daemon (rshd). The daemon typically uses the well-known Transmission Control Protocol (TCP) port number 513.
The command runcon allows for the launching of a process into an explicitly specified context (user, role, and domain), but SELinux may deny the transition if it is not approved by the policy. Files, network ports, and other hardware also have an SELinux context, consisting of a name, role (seldom used), and type.
DNS-SD (DNS Service Discovery [16]) allows clients to discover a named list of service instances and to resolve those services to hostnames using standard DNS queries. The specification is compatible with existing unicast DNS server and client software, but works equally well with mDNS in a zero-configuration environment.
apticron, a service designed to be run via cron to email notices of pending updates to a system administrator (sysadmin). APT Daemon, a front end that runs as a service to allow users to install software through PolicyKit and is in turn the framework used by Ubuntu software center (along with the Linux Mint software manager).