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Diffstat (limited to 'static/unix-v10/man7/login.7')
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diff --git a/static/unix-v10/man7/login.7 b/static/unix-v10/man7/login.7 new file mode 100644 index 00000000..bb221e5c --- /dev/null +++ b/static/unix-v10/man7/login.7 @@ -0,0 +1,101 @@ +.pa 1 +.he '6/15/72''LOGIN, LOGOUT (VII)' +.ti 0 +NAME logging in and logging out +.sp +.ti 0 +SYNOPSIS -- +.sp +.ti 0 +DESCRIPTION UNIX +must be called from an appropriate terminal. +UNIX supports ASCII terminals typified by the Teletype M37, +the GE Terminet 300, the Memorex 1240, and various +graphical terminals on the one hand, and IBM 2741-type +terminals on the other. + +Not all installations support +all these terminals. +Often the M33/35 Teletype is supported instead +of the 2741. +Depending on the hardware installed, most +terminals operating at 110, 134.5, 150, or 300 baud can +be accommodated. + +To use UNIX, +it is also necessary to have +a valid UNIX user ID and (if desired) password. These +may be obtained, together with the telephone number, from the system administrators. + +The same telephone number +serves terminals operating at all the standard speeds. +The discussion below applies when the standard +speeds of 134.5 (2741's) +150 (TTY 37's) and 300 (Terminet 300's) +are available. + +When a connection is established via a 150-baud terminal +(e.g. TTY 37) UNIX types out "login:"; you respond with +your user name, and, if requested, with a password. +(The printer is turned off while you type the +password.) +If the login was successful, the "@" character +is typed by the Shell to indicate +login is complete and commands may be issued. +A message of the day may be typed if there are any announcements. +Also, if there is a file called "mailbox", you are notified +that someone has sent you mail. +(See the mail____ command.) + +From a 300-baud terminal, the procedure is slightly different. +Such terminals often have a full-duplex switch, which should +be turned on (or conversely, half-duplex should be turned off). +When a connection with UNIX is established, a few garbage +characters are typed (these are the "login:" message at the wrong speed). +You should depress the "break" key; +this is a speed-independent signal to UNIX that a 300-baud +terminal is in use. It will type "login:" (at the correct speed +this time) and from then on the procedure is the same as described +above. + +From a 2741, no message will appear. +After the telephone connection is established, +press the "ATTN" button. +UNIX should type "login:" as described above. +If the greeting does not appear after a few seconds, +hang up and try again; something has gone wrong. +If a password is required, +the printer cannot be turned off, so it will appear on the paper +when you type it. + +For more information, consult +getty(VII), which discusses the login sequence in more +detail, and tty0(IV), which discusses typewriter I/O. + +Logging out is simple by comparison (in fact, sometimes too simple). +Simply generate an end-of-file at Shell level by using +the EOT character; the "login:" message will appear again to +indicate that you may log in again. + +It is also possible to log out simply by hanging up the terminal; +this simulates an end-of-file on the typewriter. +.sp +.ti 0 +FILES /etc/motd +may contain a message-of-the-day. +.sp +.ti 0 +SEE ALSO init(VII), getty(VII), tty0(IV) +.sp +.ti 0 +DIAGNOSTICS -- +.sp +.ti 0 +BUGS Hanging up +on programs which never read +the typewriter or which ignore end-of-files +is very dangerous; in the worst cases, +the programs can only be halted by restarting the system. +.sp +.ti 0 +OWNER ken, dmr |