Daytime Protocol
The Daytime Protocol is a service in the Internet Protocol Suite, defined in 1983 in RFC 867. It is intended for testing and measurement purposes in computer networks.
| Internet protocol suite |
|---|
| Application layer |
| Transport layer |
| Internet layer |
| Link layer |
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A host may connect to a server that supports the Daytime Protocol on either Transmission Control Protocol (TCP) or User Datagram Protocol (UDP) port 13. The server returns an ASCII character string of the current date and time in an unspecified format.
Inetd implementation
On UNIX-like operating systems a daytime server is usually built into the inetd (or xinetd) daemon. The service is usually not enabled by default. It may be enabled by adding the following lines to the file /etc/inetd.conf and telling inetd to reload its configuration:
daytime stream tcp nowait root internal daytime dgram udp wait root internal
An example output may be:
Monday, February 22, 1982 18:45:59-PST
gollark: Yeeeeees, but just fix the fancy URLs mode.
gollark: It explicitly says so.
gollark: You need to configure your webserver too.
gollark: Just do it correctly.
gollark: You probably enabled them wrong.
See also
- List of well-known ports
- Echo Protocol
- QOTD
- Time Protocol
- Network Time Protocol
External links
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