484 lines
22 KiB
Plaintext
484 lines
22 KiB
Plaintext
Reliance LG LSP 340 Series WLL Modem Setup HOWTO
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Dhiraj Gaur
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dhiraj dot gaur _at_ gmail dot com
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dhiraj _at_ mail dot nplindia dot ernet dot in
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Revision History
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Revision 1.0 2005-06-21
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Revised by Machtelt Garrels for inclusion in TLDP.
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This document explains how to set up and configure Reliance or TATA Indicomm
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WLL phones on Linux, using a serial cable instead of the (default) USB cable.
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It also has instructions on how to build the cable yourself.
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-----------------------------------------------------------------------------
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Table of Contents
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1. Introduction
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2. System Requirements
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3. Activating Internet Services on your Handset
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4. Checking for PPP Support
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5. Configuring your Phone
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6. PPP Configuration
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7. Let's Get Started
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8. References
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9. Feedback
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10. Licensing information and liability
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1. Introduction
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This HOWTO is for people who have Reliance or TATA Indicomm WLL phones and
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wish to access Internet on their desktops/laptops running GNU/Linux using
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serial cable (NOT a USB CABLE).
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No software provided by Reliance was used, but I did search the Internet for
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the modem query strings which are required during PPP setup.
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I have tried this setup on Slackware Linux 10.1 with a 2.4.29 kernel and I am
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pretty confident that this trick will work on other Linux distributions as
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well.
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The HOWTO assumes that you have a fair knowledge about your Linux
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distribution (BSD or System V style) and that PPP support is pre-compiled in
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your Linux kernel.
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In this HOWTO we are talking about the serial cable for the following
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reasons:
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1. The cable provided by Reliance or TATA is very expensive (about 1400
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rupees) and the software provided supports only MS Windows.The cable
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typically has a USB interface on one end and an RJ-45 interface on the
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other. However, for these phones phones a cheaper cable is available on
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the market (only 100 rupees). This cable has a serial interface on one
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end and an RJ-45 on the other. You can make this cable yourself. The
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procedure is discussed later in this HOWTO. Why waste money when you can
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assemble your own cable or purchase the cheaper one?
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2. USB cables have some glitches for the WLL handsets, especially the LG
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ones. I have no idea about other handsets, your input is welcome if you
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know about other sets. The advantage in using a USB cable is that you can
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connect at 153.6 kbps as the handsets have an inbuilt modem which is
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capable for speeds upto 170kbps.
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3. On the numerous forums I searched on the net I found that all talked only
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about the USB cable and not about the serial one. I thought it was high
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time to write this HOWTO to help fellow Linux users.
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Note But I have a USB cable!
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If you have the USB cable after all, visit [http://www.hackgnu.org/
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ril-howto.html] http://www.hackgnu.org/ril-howto.html for information
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about setting up Internet access using LG/SAMSUNG CDMA sets.
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This link is also helpful: [http://www.linuxsolved.com/forums/
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ftopic1178.html] http://www.linuxsolved.com/forums/ftopic1178.html
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Unfortunately the LG/SAMSUNG CDMA mobile uses USB cables only, but the
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good news is that these USB cables are also available on the market.
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Purchase them at your local computer vendor's. As per my last
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information such cables cost only 200 rupees.
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-----------------------------------------------------------------------------
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2. System Requirements
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You will need a GNU/Linux system with a kernel having PPP support
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pre-compiled. I have tested that both the 2.4.29 kernel and the 2.6.x series
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kernel work fine. Performance seems to be better using a 2.6.x kernel. If you
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see that some kernel modules are missing then configure and recompile the
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kernel with PPP support.
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Check with Section 4 for the configuration of PPP.
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A connecting serial cable which has on one end an RJ-45 connector which plugs
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into the phone and on the other end has an RS-232 serial connector which is
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plugged into the serial port of the PC.
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I built my cable myself. I used a CAT 5 cable which has four pairs of UTP
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copper. CAT 5 cable is the same cable which is used for networking your
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system to a LAN. While you can use any type of cable, CAT 5 will assure a
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good quality of the signal that is sent over the wire. A typical
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configuration looks like this:
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RS-232C Serial Female connector, which is plugged into the PC:
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___________________
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\ /
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\ 5 4 3 2 1 /
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\ 9 8 7 6 /
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\___________/
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Now let's start with the PIN Configuration
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* PIN 1 - White Brown cable
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* PIN 2 - Blue cable
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* PIN 3 - White Green cable
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* PIN 4 - Green cable
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* PIN 5 - White Blue cable
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* PIN 6 - Brown cable
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* PIN 7 - White Orange cable
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* PIN 8 - Orange cable
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* PIN 9 - Leave empty (we are only using 8 pins)
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Note Serial connection details
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Three strings would be enough for a serial connection, but it turned out
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that the signal is better when you use 5. The other strings are used for
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extra rigidness and support of the cable.
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Now on to the RJ-45 connector, which is plugged into the WLL Phone RJ-45
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jack:
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[8 7 6 5 4 3 2 1]
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----
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-
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* 1 - White Orange
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* 2 - Orange
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* 3 - White Green
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* 4 - Blue
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* 5 - White Blue
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* 6 - Green
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* 7 - White Brown
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* 8 - Brown
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Tip How to hold the connector
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If you are confused as to which way to hold the connector, make sure that
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you are holding the connector in such a way that its notch pin is facing
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towards the floor and that the open portion (portion from where the wires
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enter) is facing away from you.
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-----------------------------------------------------------------------------
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3. Activating Internet Services on your Handset
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To get Internet services activated on your handset you may contact the
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customer care center of your service provider. In the case of the Reliance
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the service is pre-activated.
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For establishing the connection on a Reliance, the user name is the phone
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number without the prefix 0 in the STD code. For instance, if your STD code
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is 0124 and telephone number is 3456789 then your user name is 1243456789.
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Your password is the same as your user name. When using the TATA Indicomm
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user name and password are "internet" (without quotes).
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-----------------------------------------------------------------------------
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4. Checking for PPP Support
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Although PPP support is provided in almost all Linux distributions but it is
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still better to check whether it is present on your system. You can use
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checkconfig or, better still, look into the /usr/sbin directory and locate
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PPP binaries with the command
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ls -al ppp*
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If you get a listing like this:
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-rwxr-xr-x 1 root root 3438 2005-05-28 14:56 ppp-go*
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-rwxr-xr-x 1 root bin 1787 2004-02-26 21:36 ppp-off*
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lrwxrwxrwx 1 root root 6 2005-05-28 14:17 ppp-on -> ppp-go*
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lrwxrwxrwx 1 root root 7 2005-05-28 14:17 ppp-stop -> ppp-off*
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-rwxr-xr-x 1 root bin 346812 2004-02-26 21:36 pppd*
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-rwxr-xr-x 1 root bin 37916 2004-02-26 21:36 pppdump*
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-rwxr-xr-x 1 root bin 25936 2003-03-02 22:05 pppoe*
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-rwxr-xr-x 1 root bin 22308 2003-03-02 22:05 pppoe-relay*
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-rwxr-xr-x 1 root bin 35084 2003-03-02 22:05 pppoe-server*
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-rwxr-xr-x 1 root bin 12028 2003-03-02 22:05 pppoe-sniff*
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-rwxr-xr-x 1 root bin 58527 2004-02-26 21:36 pppsetup*
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-rwxr-xr-x 1 root bin 9192 2004-02-26 21:36 pppstats*
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then PPP support is definitely present.
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Similarly, look into /etc/ppp directory, which contains the PPP options file
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and some other files configuring PPP:
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-rw------- 1 root root 78 2004-02-26 21:36 chap-secrets
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-rw------- 1 root root 1625 2005-05-28 14:35 connect-errors
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-rw-r--r-- 1 root root 938 2003-03-02 22:04 firewall-masq
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-rw-r--r-- 1 root root 836 2003-03-02 22:04 firewall-standalone
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-rwxr-xr-x 1 root root 1208 2005-05-28 14:56 ip-down*
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-rwxr-xr-x 1 root root 1208 2005-05-28 14:29 ip-down.OLD*
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-rwxr-xr-x 1 root root 1945 2005-05-28 14:56 ip-up*
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-rwxr-xr-x 1 root root 1945 2005-05-28 14:29 ip-up.OLD*
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-rw------- 1 root root 541 2005-05-28 14:58 options
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-rw------- 1 root root 656 2005-05-28 14:56 options.demand
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-rw-r--r-- 1 root root 9975 2005-05-28 11:21 options.old
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-rw------- 1 root root 216 2005-05-28 14:56 pap-secrets
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drwxr-xr-x 2 root root 4096 2003-03-02 22:05 plugins/
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-rw-r--r-- 1 root root 104 2003-03-02 22:04 pppoe-server-options
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-rw-r--r-- 1 root root 4562 2003-03-02 22:04 pppoe.conf
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-rw------- 1 root root 129 2005-05-28 15:12 pppscript
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-rw------- 1 root root 8941 2005-05-28 14:56 pppsetup.txt
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For the sake of safety do copy your original options file to a file
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options.old so that you can revert back to your original setup should you
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have troubles.
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See [http://www.tldp.org/HOWTO/PPP-HOWTO/kernel-configuration.html] the PPP
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HOWTO Chapter 10 for more information on PPP support in the Linux kernel.
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-----------------------------------------------------------------------------
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5. Configuring your Phone
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Currently Reliance comes with one of two brands of handsets: LG and Samsung.
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TATA Indicom also provides two handsets: LG and AXESSTEL.
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Plug the cable to the phone and also to the system.
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It is important to note that all these phones act as a serial modem so they
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do not require a driver or anything. After you have connected your phone to
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the cable, the cable is plugged in either COM1 or COM2 (and not COM3 or COM4,
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as these are virtual ports).
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Remember:
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* COM1 in LINUX is /dev/ttyS0
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* COM2 is LINUX is /dev/ttyS1
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Your phone modem works on either of the two ports, but I suggest that first
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try /dev/ttyS1, so as not to disturb other peripherics on your system that
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are also using a serial port, which would then usually be on /dev/ttyS0.
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First check if your COM port is fine using the command
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setserial /dev/ttyS1 -a
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If it displays something like this:
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dev/ttyS1, Line 1, UART: 16550A, Port: 0x02f8, IRQ: 3
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Baud_base: 115200, close_delay: 50, divisor: 0
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closing_wait: 3000
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Flags: spd_normal skip_test
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then your COM port is fine. If this does not work, it is possible that PPP
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support is not configured after all. Return to Section 4 to check. If you are
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sure that PPP support is configured on your system, maybe the problem is with
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the COM port. You could try the other port in that case.
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Now go to the shell and type
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cat /dev/ttyS1
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If this prints nothing, your phone is configured. Type CTRL+C to exit.
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If your modem is not configured, the cat command would give an error message
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like this:
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cat: /dev/ttyS1: No such device
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Alternately, in case you use KDE, start the KPPP program: go to the desktop
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and press Alt+F2 and type "kppp" in the box which appears. This will start
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KPPP.
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Testing using KPPP:
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Click on the Configure button. Go to the Modem tab.
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There add a new modem on /dev/ttyS1and click OK. Now select the newly created
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modem and click the EDITbutton. In the new box which appears, select Modemand
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then click Query modem. If the modem is properly set then you will get the
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proper status of the modem. It will first say something like "Finding Modem",
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then some more messages.
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Warning Lock file
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BE SURE TO UNCHECK THE USE LOCK FILE CHECKBOX in the modem
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properties, else it may give some random errors.
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If all is fine you will be presented with a window with some blank textboxes
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and you can go ahead.
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-----------------------------------------------------------------------------
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6. PPP Configuration
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Make an easy link to your modem device:
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ln -s /dev/ttyS1 /dev/modem
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Now change to the /usr/sbin directory and look for ppp files. Look for either
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a pppsetup or a pppconfig script. You may directly start this script to set
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up PPP on your system. On my Slackware system I typed pppsetup and started
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the script. This script asks for various parameters for connecting via the
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ISP.
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* It first asks for the phone number to dial -- enter "atdt#777", where 777
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is replaced by the number that you need to dial.
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* It then asks for the modem -- select /dev/ttyS1
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* Baud Rate -- select "115200"
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* Callback -- Answer "NO"
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* Modem INIT String -- "ATZ OK "at+crm=1" OK"
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* ISP Domain Name -- Leave blank
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* DNS Server Address -- Enter a valid DNS Server IP, for instance
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"202.41.97.3" or "202.41.97.132", or leave blank
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* Authentication -- "PAP"
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* Username
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* Password
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Refer to Section 3 for Username and Password.
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Finally it shows you your configuration.
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Some more work needs to be done. We need to edit the options file present in
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the /etc/ppp folder. We need to check if the following entries are present in
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the file:
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lock
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defaultroute
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noipdefault
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modem
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/dev/ttyS1
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115200
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crtscts
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noauth
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passive
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asyncmap 0
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Note The noauth option
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Remember that noauth is by default commented; you need to uncomment it.
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You can use egrep -v '#|^ *$' /etc/ppp/options to list only the options
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present in this file so as to quickly judge which ones are missing or
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incorrect.
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-----------------------------------------------------------------------------
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7. Let's Get Started
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For testing purposes log in as root and open two different shells.
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In one shell issue the command
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tail -f /var/log/messages
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Start the PPP connection in the other shell using the command
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ppp-on
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In the first shell you will see various messages indicating that the modem is
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initialized and that the connection is being established. My /var/log/
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messages looks like this:
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May 29 06:14:06 dhiraj pppd[2341]: pppd 2.4.2 started by root, uid 0
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May 29 06:14:07 dhiraj chat[2343]: timeout set to 60 seconds
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May 29 06:14:07 dhiraj chat[2343]: abort on (ERROR)
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May 29 06:14:07 dhiraj chat[2343]: abort on (BUSY)
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May 29 06:14:07 dhiraj chat[2343]: abort on (NO CARRIER)
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May 29 06:14:07 dhiraj chat[2343]: abort on (NO DIALTONE)
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May 29 06:14:07 dhiraj chat[2343]: send (ATZ^M)
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May 29 06:14:07 dhiraj chat[2343]: expect (OK)
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May 29 06:14:07 dhiraj chat[2343]: ATZ^M^M
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May 29 06:14:07 dhiraj chat[2343]: OK
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May 29 06:14:07 dhiraj chat[2343]: -- got it
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May 29 06:14:07 dhiraj chat[2343]: send (at+crm=1^M)
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May 29 06:14:07 dhiraj chat[2343]: expect (OK)
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May 29 06:14:07 dhiraj chat[2343]: ^M
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May 29 06:14:07 dhiraj chat[2343]: at+crm=1^M^M
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May 29 06:14:07 dhiraj chat[2343]: OK
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May 29 06:14:07 dhiraj chat[2343]: -- got it
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May 29 06:14:07 dhiraj chat[2343]: send (atdt#777^M)
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May 29 06:14:07 dhiraj chat[2343]: timeout set to 75 seconds
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May 29 06:14:07 dhiraj chat[2343]: expect (CONNECT)
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May 29 06:14:07 dhiraj chat[2343]: ^M
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May 29 06:14:07 dhiraj chat[2343]: atdt#777^M^M
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May 29 06:14:07 dhiraj chat[2343]: CONNECT
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May 29 06:14:07 dhiraj chat[2343]: -- got it
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May 29 06:14:07 dhiraj pppd[2341]: Serial connection established.
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May 29 06:14:07 dhiraj pppd[2341]: Using interface ppp0
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May 29 06:14:07 dhiraj pppd[2341]: Connect: ppp0 <--> /dev/ttyS1
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May 29 06:14:13 dhiraj pppd[2341]: PAP authentication succeeded
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May 29 06:14:13 dhiraj kernel: PPP BSD Compression module registered
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May 29 06:14:13 dhiraj kernel: PPP Deflate Compression module registered
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May 29 06:14:14 dhiraj pppd[2341]: local IP address 220.224.45.140
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May 29 06:14:14 dhiraj pppd[2341]: remote IP address 97.235.2.5
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Now open your browser and get started.
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In case the browser gives the error that the server name is not being
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resolved, open the file /etc/resolve.conf and add the entry
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namesserver 202.41.97.9
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nameserver 202.41.97.132
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These are two valid DNS servers of Ernet India Labs, located in New Delhi.
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Your Internet Service Provider probably provides its own name service, use
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the IP addresses of the servers they recommend.
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When you are finished surfing the net you may stop the connection using
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ppp-off
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in the second shell. In the other shell window you will get something like
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this :
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May 29 06:16:15 dhiraj pppd[2341]: Terminating on signal 2.
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May 29 06:16:15 dhiraj pppd[2341]: Connection terminated.
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May 29 06:16:15 dhiraj pppd[2341]: Connect time 2.2 minutes.
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May 29 06:16:15 dhiraj pppd[2341]: Sent 3401 bytes, received 1563 bytes.
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May 29 06:16:16 dhiraj pppd[2341]: Connect time 2.2 minutes.
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May 29 06:16:16 dhiraj pppd[2341]: Sent 3401 bytes, received 1563 bytes.
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May 29 06:16:16 dhiraj pppd[2341]: Exit.
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Stop the messages output using Ctrl+C.
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-----------------------------------------------------------------------------
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8. References
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For info about accessing Internet using LG/SAMSUNG CDMA sets via USB cable go
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to [http://www.hackgnu.org/ril-howto.html] http://www.hackgnu.org/
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ril-howto.html.
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This link is also helpful: [http://www.linuxsolved.com/forums/
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ftopic1178.html] http://www.linuxsolved.com/forums/ftopic1178.html.
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All the information in this HOWTO comes partly from these two links, the
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[http://tldp.org/HOWTO/PPP-HOWTO/index.html] PPP-HOWTO and partly from my
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research and development in the Linux world.
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-----------------------------------------------------------------------------
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9. Feedback
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Mail your suggestions, requests and queries to the author.
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-----------------------------------------------------------------------------
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10. Licensing information and liability
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This document is copyrighted 2005 by Dhiraj Gaur. Permission is granted to
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copy, distribute and/or modify this document under the terms of the GNU Free
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Documentation License, Version 1.1 or any later version published by the Free
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Software Foundation; with no Invariant Sections, with no Front-Cover Texts,
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and with no Back-Cover Texts. A copy of the license is available at [http://
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www.gnu.org/copyleft/fdl.html] http://www.gnu.org/copyleft/fdl.html.
|
||
|
||
Linux is a registered trademark of Linus Torvalds.
|
||
|
||
No liability for the contents of this document can be accepted. Use the
|
||
concepts, examples and information at your own risk. There may be errors and
|
||
inaccuracies, that could be damaging to your system. Proceed with caution,
|
||
and although this is highly unlikely, the author(s) do not take any
|
||
responsibility.
|
||
|
||
All copyrights are held by their by their respective owners, unless
|
||
specifically noted otherwise. Use of a term in this document should not be
|
||
regarded as affecting the validity of any trademark or service mark. Naming
|
||
of particular products or brands should not be seen as endorsements.
|