¦ƒ¦ƒ¦ƒ¦ƒ¦ƒ¦ƒ¦ƒ¦ƒ¦ƒ¦ƒ¦ƒ¦ƒ¦ƒ¦ƒ¦ƒ¦ƒ¦ƒƒ¦ƒ¦ƒ¦ƒ¦ƒ¦ƒ¦ƒ¦ƒ¦ƒ¦ƒ¦ƒ¦ƒ¦ƒ¦ƒ¦ƒ¦ƒ¦ƒ¦ƒƒ¦ƒ¦ƒ¦ƒ¦ƒ¦ ƒ cOmIN at ya with the DOPE tip ta Filter that dOme on yer |ξxcerpt # o1 ƒ .-=ω. THE shoulders`--------. 2 ƒ / / //|| //|| γΝΝΝΝ // γΝΝΝΝ //|| _..._ _ .. . . ` 3 ƒ/ / //_||_ || \\___ // \\___ || / _ \ (_all 4 ƒ³ \_ . ``-||- || ____/\ // ____/\ || ( (_) ) -³-Glε-nut!¨ 5 ƒ \ \__/³ "" "" -----' // -----' "" `-----' \ mmmm... 6 ƒ \_____/ Sc‘nClub TheΓΕollow's ’lliance' 7 ƒ Sup SDBP... presents... @ 415-236-2371 thpt! 8 ƒ An ξxcerpt from the Book of Crescent... snkt! 9 ƒ tHe 1st of buku articles commin at you, so remember "Kο•WœŠDGδ ‹ Pψ(/\)R" 0 ¦ƒ¦ƒ¦ƒ¦ƒ¦ƒ¦ƒ¦ƒ¦ƒ¦ƒ¦ƒ¦ƒ¦ƒ¦ƒ¦ƒ¦ƒ¦ƒ¦ƒ¦ƒ¦ƒ¦ƒ¦ƒ¦ƒ¦ƒ¦ƒ¦ƒ¦ƒ¦ƒ¦ƒ¦ƒ¦ƒ¦ƒ¦ƒ¦ƒ¦ƒ¦ƒ¦ƒ¦ƒ¦ƒ¦ƒ¦ Network Working Group B. Miller Request for Comments: 1097 CMU-NetDev 1 April 1989 TELNET SUBLIMINAL-MESSAGE Option Status of this Memo This RFC specifies a standard for the Internet community. Hosts on the Internet that display subliminal messages within the Telnet protocol are expected to adopt and implement this standamd. Distribution of this memo is unlimited. 1. Command name and code. SUBLIMINAL-MESSAGE 257 2. Command meanings. IAC WILL SUBLIMINAL-MESSAGE The sender of this command REQUESTS permission to, or confirms that it will, display subliminal messages. IAC WONT SUBLIMINAL-MESSAGE The sender of this command REFUSES to display subliminal messages. IAC DO SUBLIMINAL-MESSAGE The sender of this command REQUESTS that the receiver, or grants the receiver permission to, display subliminal messages. IAC DONT SUBLIMINAL-MESSAGE The sender of this command DEMANDS that the receiver not display subliminal messages. IAC SB SUBLIMINAL-MESSAGE <16-bit value> <16-bit value> IAC SE The sender specifies a message to be subliminaly displayed by the remote host. If the client has agreed (via the standard WILL WONT DO DONT mechanism) to display subliminal messages, it must accept this subnegotiation and attempt to display the message string on the users console for the specified duration and continue to do so at fixed intervals until another SUBLIMINAL-MESSAGE subnegotiation is received. The position and rendering of the message of Miller [Page 1] - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - implementation dependent. The first 16-bit value specifies the duration of the message in milliseconds. It is sent MSB first. The second 16-bit value specifies the frequency with which the message is displayed. It represents the number of seconds between displays and is also sent MSB first. The final parameter is the message itself. The syntax for this subnegotiation is: IAC SB SUBLIMINAL-MESSAGE DURATION[1] DURATION[0] FREQUENCY[1] FREQUENCY[0] MESSAGE_STRING IAC SE As required by the Telnet protocol, any occurence of 255 in the subnegotiation must be doubled to destinguish it from the IAC character (which has a value of 255). 3. Default. WONT SUBLIMINAL-MESSAGE DONT SUBLIMINAL-MESSAGE i.e., subliminal messages will not be displayed. 4. Motivation for the option Frequently the use of "Message of the day" banners and newsletters is insufficient to convince stubborn users to upgrade to the latest version of telnet. Some users will use the same outdated version for years. I ran across this problem trying to convince people to use the REMOTE-FLOW-CONTROL Telnet option. These users need to be gently "persuaded". 5. Description and implementation notes. The quality of the client implementation will depend on it's ability to display and erase text strings in a small amount of time. The current implementation at CMU takes into acount terminal line speed, advanced video capabilities, and screen phospher persistance when calculating how long to wait before erasing a message. While it is permitted for the client to display the message text "in-line", best results at obtained by printing the message at the top or side of console screen where it will just catch the corner of Miller [Page 2] - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - the user's visual field. A version is currently under development at CMU to display the message using morse-code over the keyboard caps-lock LED. 6. Examples In the following example all numbers are in decimal notation. 1. Server suggests and client agrees to use SUBLIMINAL-MESSAGE. (Server sends) IAC DO SUBLIMINAL-MESSAGE (Client sends) IAC WILL SUBLIMINAL-MESSAGE (Server sends) IAC SB SUBLIMINAL-MESSAGE 0 5 0 20 "Use VMS" IAC SE [The server is "suggesting" that the user employ a stable operating system, not an unreasonable request...] The client should immediately begin displaying the message and should continue to do so at regular intervals. 2. Server preempts previous subliminal message. (Server sends) IAC SB SUBLIMINAL-MESSAGE 0 5 0 20 "Go home" IAC SE The client should now no longer display the previous message and should immediately begin displaying the new one. 3. Server has messed with user enough for one day. (Server sends) IAC SB SUBLIMINAL-MESSAGE 0 0 0 0 "" IAC SE The client must cease display of any subliminal messages. 7. Acknowledgements. We do things just a little sneakier here at CMU. Miller [Page 3] ¦ƒ¦ƒ¦ƒ¦ƒ¦ƒ¦ƒ¦ƒ¦ƒ¦ƒ¦ƒ¦ƒ¦ƒ¦ƒ¦ƒ¦¦ƒ¦ƒ¦ƒ¦ƒ¦ƒ¦ƒ¦ƒ¦ƒ¦ƒ¦ƒ¦ƒ¦ƒ¦ƒ¦ƒ¦¦ƒ¦ƒ¦ƒ¦ƒ¦ƒ¦ƒ¦ƒ¦ƒ¦ƒ¦ƒ Now wouldn't it be fun to implement that on a system. Have it flash "HOT SEX" every few milliseconds. Maybe you could catch the system manager on the system and show him "SET UP UNPASSWORDED ACCOUNTS" or "COOPERATE WITH A HACK" .. anyways.. . . This only works on systems specially setup for the Subliminal Message protocol on the Internet or similar networks. Try it out if you hack one, I haven't had the chance. You may not find it setup though, most would probably think it isn't practical. Except maybe CMU, and that cocky ass Miller only gives you another reason to hack their systems heh ... Await the the next coming MoonChildren.. . . . 415/510 ScanClub (c) 2001 X-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-X Another file downloaded from: NIRVANAnet(tm) &TOTSE 510/935-5845 Walnut Creek, CA Taipan Enigma Burn This Flag 408/363-9766 San Jose, CA Zardoz realitycheck 415/666-0339 San Francisco, CA Poindexter Fortran Governed Anarchy 510/226-6656 Fremont, CA Eightball New Dork Sublime 805/823-1346 Tehachapi, CA Biffnix Lies Unlimited 801/278-2699 Salt Lake City, UT Mick Freen Atomic Books 410/669-4179 Baltimore, MD Baywolf Sea of Noise 203/886-1441 Norwich, CT Mr. Noise The Dojo 713/997-6351 Pearland, TX Yojimbo Frayed Ends of Sanity 503/965-6747 Cloverdale, OR Flatline The Ether Room 510/228-1146 Martinez, CA Tiny Little Super Guy Hacker Heaven 860/456-9266 Lebanon, CT The Visionary The Shaven Yak 510/672-6570 Clayton, CA Magic Man El Observador 408/372-9054 Salinas, CA El Observador Cool Beans! 415/648-7865 San Francisco, CA G.A. Ellsworth DUSK Til Dawn 604/746-5383 Cowichan Bay, BC Cyber Trollis The Great Abyss 510/482-5813 Oakland, CA Keymaster "Raw Data for Raw Nerves" X-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-X