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- This directory contains a set of scripts which have been used on Linux
- systems to initiate or maintain a connection with PPP. The files in
- this directory were contributed by Al Longyear.
-
- ------------------------------------------------------------------------
-
- 1. README
-
- This file. You are reading it. It is just documentation.
-
- ------------------------------------------------------------------------
-
- 2. ppp-on
-
- This script will initiate a connection to the PPP system. It will run
- the chat program with the connection script as a parameter. This is a
- possible security hole. However, it is simple. It is meant to replace
- the previous version of ppp-on which was not very functional.
-
- The ppp-on script has entries for the account name, password, IP
- addresses, and telephone numbers. The parameters are passed to the
- pppd process and, then in turn, to the second part of the connect
- script, as a set of environment variables.
-
- Please make sure that you put the full path name to the ppp-on-dialer
- script in the reference to it in ppp-on.
-
- ------------------------------------------------------------------------
-
- 3. ppp-on-dialer
-
- This is the second part to the simple calling script, ppp-on. It
- executes the chat program to connect the user with a standard UNIX
- style getty/login connection sequence.
-
- ------------------------------------------------------------------------
-
- 4. callback
-
- This script may be used in lieu of the ppp-on-dialer to permit the
- common modem callback sequence. You may need to make changes to the
- expected prompt string for the modem.
-
- The script works by disabling the system's detection of the DCD
- condition and working on the modem status message "NO CARRIER" which
- is generated when the modem disconnects.
-
- It is crude. It does work for my modem connection. Use as you see fit.
-
- ------------------------------------------------------------------------
-
- 5. redialer
-
- The redialer script is a replacement for the ppp-on-dialer script. It
- will do 'attack dialing' or 'demon dialing' of one or more telephone
- numbers. The first number which responds will be used for a
- connection.
-
- There is a limit of ten attempts and a 15 second delay between dialing
- attempts. Both values are set in the script.
-
- ------------------------------------------------------------------------
-
- 6. ppp-off
-
- This is a script which will terminate the active ppp connection. Use
- as either "ppp-off" to terminate ppp0, or "ppp-off <device>" to
- terminate the connection on <device>. For example, "ppp-off ppp2" will
- terminate the ppp2 connection.
-
- ------------------------------------------------------------------------
-
- 7. keepalive
-
- The keepalive directory is not a connection script. It is a method of
- keeping the PPP connection alive. These scripts will be used when the
- PPP connection terminates. The purpose of these scripts is to
- automatically attempt to use the ppp-on (and one of the above scripts)
- to re-establish the connection to the remote system.
-
- Please use these scripts with caution. If you do use them, recognize
- that there is nothing which will normally terminate the
- connection. You may be required to rename the /etc/ppp/ip-down script
- and then manually kill the pppd process in order to deactivate the
- automatic reconnection. Don't use these scripts unless you really want
- to keep the connection alive at all times.
-