mgetty(8) mgetty+sendfax manual mgetty(8) NNAAMMEE mgetty - smart modem getty SSYYNNOOPPSSIISS mmggeettttyy [ooppttiioonnss] ttydevice [_g_e_t_t_y_d_e_f_s] DDEESSCCRRIIPPTTIIOONN Mgetty is a ``smart'' getty replacement, designed to be used with hayes compatible data and data/fax modems. Mgetty knows about modem initialization, manual modem answering (so your modem doesn't answer if the machine isn't ready), UUCP locking (so you can use the same device for dial-in and dial-out). Mgetty provides very extensive logging facilities. This manpage doesn't try to detail mgetty setup in detail, it just lists the most important options. For detailed instructions, see the info file mgetty.info (mgetty.texi). OOPPTTIIOONNSS --kk <> Tells _m_g_e_t_t_y to leave kbytes free on disk when receiving a fax. --xx <> Use the given level of verbosity for logging - 0 means no logging, 9 is really noisy. The log file is usually /tmp/log_mg. --ss <> Set the port speed to use, e.g. "-s 19200". --rr Tells _m_g_e_t_t_y that it is running on a direct line. UUCP locking is done, but no modem initialization whatsoever. --pp <> Use the given string to prompt users for their login names. Various tokens are allowed in this string. These tokens are: @ for the system name, \n, \r, \g, \v, \f, \t for newline, carriage return, bell, vertical tab, form feed, and tab, respectively. \P and \L will expand to the tty name ("ttyS0"). \I will give the "CONNECT foobar" string returned by the modem, and \S will output the port speed. \N and \U give the number of users cur- rently logged in. \C will be changed into the result of ctime(), and \D and \T will output the date and time, respectively. Finally, \ will use digit as octal/decimal/hexadecimal representa- tion of the character to follow. The default prompt is specified at compile time. greenie 27 Oct 93 - 21 Jul 98 1 mgetty(8) mgetty+sendfax manual mgetty(8) --nn ## Tells _m_g_e_t_t_y to pick up the phone after the #th RING. Default is 1. --RR <> Tells _m_g_e_t_t_y to go into "ringback" (aka "ring- twice") mode. That means: the first call is never answered, instead the caller has to hang up after the phone RINGs, wait 30 seconds, and then call again in the next seconds for mgetty to pick up. If no call comes, mgetty will exit. I do not really recommend using this, better get a second phone line for the modem. --ii <> Output instead of /etc/issue before prompting for the user name. The same token substi- tutions as for the the login prompt are done in this file. --DD Tells _m_g_e_t_t_y that the modem is to be treated as a DATA modem, no fax initalization is attempted. --FF Tells _m_g_e_t_t_y that DATA calls are not allowed and the modem should be set to Fax-Only. --CC <> Tells _m_g_e_t_t_y how to treat the modem. Possible val- ues for are "auto" (default, try to find out whether the modem supports fax), "cls2" (use the class 2 fax command set, even if the modem sup- ports class 2.0), "c2.0" (use the class 2.0 fax command set), "data" (data only, exactly as the -D switch). --SS <> If a call comes in and requests fax polling, _m_g_e_t_t_y will send the named file. Note: not all fax modems support poll sending. --II <> Use the given fax station ID for fax identifica- tion. Not used for data modems. --bb Open the port in blocking mode. Best used in combi- nation with "-r". This is the default if _m_g_e_t_t_y is called as _g_e_t_t_y_. You may want to use this if you want to make use of the two-device / kernel-locking scheme of the Linux and SunOS operating systems (/dev/ttyS.. and /dev/cua..). I do not recommend it, it's just include for completeness, and to be able to use mgetty as a full-featured getty replacement. --aa Use autobauding. That is, after a connection is greenie 27 Oct 93 - 21 Jul 98 2 mgetty(8) mgetty+sendfax manual mgetty(8) made, _m_g_e_t_t_y parses the "CONNECT foo" response code of the modem and sets the port speed to the first integer found after the "CONNECT" string, "foo" in this example. You need this if your modem insist on changing its DTE speed to match the line speed. I recommend against using it, better leave the port speed locked at a fixed value. The feature is included because there exist old modems that cannot use a fixed (locked) port speed. --mm ''eexxppeecctt sseenndd ......'' Set the "chat sequence" that is used to initialize the modem. For an empty expect part, use empty dou- ble quotes (""). Since the sequence contains spaces, you have to enclose all of it in single quotes(''). Example: mgetty -m '"" ATH0 OK' FFIILLEESS //uussrr//llooccaall//eettcc//mmggeettttyy++sseennddffaaxx//mmggeettttyy..ccoonnffiigg Main configuration file. //uussrr//llooccaall//eettcc//mmggeettttyy++sseennddffaaxx//llooggiinn..ccoonnffiigg controls whether (and when) _m_g_e_t_t_y should call some other program for user login instead of /bin/login. How this is done is explained in this file. //uussrr//llooccaall//eettcc//mmggeettttyy++sseennddffaaxx//ddiiaalliinn..ccoonnffiigg controls acceptance/denial of incoming calls based on the caller's number. Available only if you have "caller ID" and your modem supports it. //eettcc//nnoollooggiinn..ttttyyxxxx controls whether mgetty should pick up the phone upon incoming calls. If the file exists, calls are completely ignored. You can use this, for example, to stop mgetty during day time, and let it pick up at night only, by creating and removing /etc/nolo- gin.ttyxx via the _c_r_o_n program at the appropriate time. //eettcc//iissssuuee will be printed after a connection is established, and before the with the '-i' option. //vvaarr//lloogg//mmggeettttyy..ttttyyxxxx Debug log file, see below. DDIIAAGGNNOOSSTTIICCSS If _m_g_e_t_t_y doesn't work the way it should, the main source of diagnostic data is the _l_o_g _f_i_l_e_. It can be found in greenie 27 Oct 93 - 21 Jul 98 3 mgetty(8) mgetty+sendfax manual mgetty(8) "/var/log/mgetty.ttyxx" (for the mgetty process handling "ttyxx"). If it doesn't contain enough details, enhance the log level with the '-x' option to mgetty, e.g. "-x 5". Many of the common problems and solutions are discussed in the mgetty manual and the FAQ. Please see the WWW page at http://alpha.greenie.net/mgetty/ for both. BBUUGGSS Not all of _m_g_e_t_t_y configuration can be done at run-time yet. Things like flow control and file paths (log file / lock file) have to be configured by changing the source and recompiling. Users never read manuals... SSEEEE AALLSSOO g32pbm(1), sendfax(8), getty(8), mgettydefs(4), mgetty.info AAUUTTHHOORR _m_g_e_t_t_y is Copyright (C) 1993 by Gert Doering, . greenie 27 Oct 93 - 21 Jul 98 4 .