QOTD
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| Internet protocol suite |
| 5. Application layer |
|
DHCP • DNS • FTP • HTTP • IMAP4 • IRC • MIME • POP3 • SIP • SMTP • SNMP • SSH • TELNET • TLS/SSL • RPC • RTP • SDP • SOAP • … |
| 4. Transport layer |
| 3. Network layer |
| 2. Data link layer |
|
ATM • Bluetooth (PAN-Profile) • DTM • Ethernet • FDDI • Frame Relay • GPRS • Modems • PPP • Wi-Fi • … |
| 1. Physical layer |
|
Bluetooth RF • Ethernet physical layer • ISDN • Modems • RS232 • SONET/SDH • USB • Wi-Fi • … |
The Quote Of The Day (QOTD) service is an Internet protocol defined in RFC 865. It is intended for testing and measurement purposes.
A host may connect to a server that supports the QOTD protocol, on either TCP or UDP port 17. The server then returns a short arbitrary message. This was traditionally a random selection from a list of notable quotes.
The QOTD service is rarely enabled, and is in any case often firewalled. Current testing and measurement of IP networks is more commonly done with ping and traceroute.
[edit] Additional Info
Agendus, a PIM for the Palm OS, has a 'Today' screen that includes a 'Quote Of The Day'. Their server is located at ota.iambic.com
You can test/learn about the server by opening a command prompt and typing telnet ota.iambic.com 17
Using Internet Explorer, try http://ota.iambic.com:17 Firefox displays 'This address is restricted'
A random quote will appear and the connection will close.
Interesting ideas include setting-up your own company QOTD server and providing your users with some useful information.
