.\" $FreeBSD$ .Dd June 26, 1997 .Os FreeBSD .Dt PPPCTL 8 .Sh NAME .Nm pppctl .Nd PPP control program .Sh SYNOPSIS .Nm .Op Fl v .Op Fl t Ar n .Op Fl p Ar passwd .Ar [host:]Port | LocalSocket .Op command[;command]... .Sh DESCRIPTION This program provides command line control of the .Xr ppp 8 daemon. Its primary use is to facilitate simple scripts that control a running daemon. .Pp .Nm Pppctl is passed at least one argument, specifying the socket on which .Nm ppp is listening. Refer to the .Sq set server command of .Nm ppp for details. If the socket contains a leading '/', it is taken as an .Dv AF_LOCAL socket. If it contains a colon, it is treated as a .Ar host:port pair, otherwise it is treated as a TCP port specification on the local machine (127.0.0.1). Both the .Ar host and .Ar port may be specified numerically if you wish to avoid a DNS lookup or don't have an entry for the given port in .Pa /etc/services . .Pp All remaining arguments are concatenated to form the .Ar command(s) that will be sent to the .Nm ppp daemon. If any semi-colon characters are found, they are treated as .Ar command delimiters, allowing more than one .Ar command in a given .Sq session . For example: .Bd -literal -offset indent pppctl 3000 set timeout 300\\; show timeout .Ed .Pp Don't forget to escape or quote the ';' as it is a special character for most shells. .Pp If no .Ar command arguments are given, .Nm enters interactive mode, where commands are read from standard input. When reading commands, the .Xr editline 3 library is used, allowing command-line editing (with .Xr editrc 5 defining editing behaviour). The history size defaults to .Em 20 lines . .Pp The following command line options are available: .Bl -tag -width Ds .It Fl v Display all data sent to and received from the .Nm ppp daemon. Normally, .Nm displays only non-prompt lines received. This option is ignored in interactive mode. .It Fl t Ar n Use a timeout of .Ar n instead of the default 2 seconds when connecting. This may be required if you wish to control a daemon over a slow (or even a dialup) link. .It Fl p Ar passwd Specify the password required by the .Nm ppp daemon. If this switch is not used, .Nm will prompt for a password once it has successfully connected to .Nm ppp . .El .Pp .Sh EXAMPLES If you run .Nm ppp in .Fl auto mode, .Nm can be used to automate many frequent tasks (you can actually control .Nm ppp in any mode except interactive mode). Use of the .Fl p option is discouraged (even in scripts that aren't readable by others) as a .Xr ps 1 listing may reveal your secret. .Pp The best way to allow easy, secure .Nm access is to create a local server socket in .Pa /etc/ppp/ppp.conf (in the correct section) like this: .Bd -literal -offset indent set server /var/run/internet "" 0177 .Ed .Pp This will instruct .Nm ppp to create a local domain socket, with srw------- permissions and no password, allowing access only to the user that invoked .Nm ppp . Refer to the .Xr ppp 8 man page for further details. .Pp You can now create some easy-access scripts. To connect to the internet: .Bd -literal -offset indent #! /bin/sh test $# -eq 0 && time=300 || time=$1 exec pppctl /var/run/internet set timeout $time\\; dial .Ed .Pp To disconnect: .Bd -literal -offset indent #! /bin/sh exec pppctl /var/run/internet set timeout 300\\; close .Ed .Pp To check if the line is up: .Bd -literal -offset indent #! /bin/sh pppctl -p '' -v /var/run/internet quit | grep ^PPP >/dev/null if [ $? -eq 0 ]; then echo Link is up else echo Link is down fi .Ed .Pp You can even make a generic script: .Bd -literal -offset indent #! /bin/sh exec pppctl /var/run/internet "$@" .Ed .Pp You could also use .Nm to control when dial-on-demand works. Suppose you want .Nm ppp to run all the time, but you want to prevent dial-out between 8pm and 8am each day. However, any connections active at 8pm should continue to remain active until they are closed or naturally time out. .Pp A .Xr cron 8 entry for 8pm which runs .Bd -literal -offset indent pppctl /var/run/internet set filter dial 0 deny 0 0 .Ed .Pp will block all further dial requests, and the corresponding 8am entry .Bd -literal -offset indent pppctl /var/run/internet set filter dial -1 .Ed .Pp will allow them again. .Sh ENVIRONMENT The following environment variables are understood by .Nm when in interactive mode: .Bl -tag -width XXXXXXXXXX .It Dv EL_SIZE The number of history lines. The default is 20. .It Dv EL_EDITOR The edit mode. Only values of "emacs" and "vi" are accepted. Other values are silently ignored. This environment variable will override the .Ar bind -v and .Ar bind -e commands in .Pa ~/.editrc . .El .Pp .Sh SEE ALSO .Xr ps 1 , .Xr editline 3 , .Xr editrc 5 , .Xr services 5 , .Xr ppp 8 .Sh HISTORY The .Nm command first appeared in .Fx 2.2.5 .