FreeBSD Bugzilla – Attachment 19806 Details for
Bug 35105
[PATCH] handbook User-ppp chapter
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[patch]
file.diff
file.diff (text/plain), 19.39 KB, created by
darklogik
on 2002-02-19 06:30:01 UTC
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file.diff
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darklogik
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2002-02-19 06:30:01 UTC
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>diff -ru handbook.old/ppp-and-slip/chapter.sgml handbook/ppp-and-slip/chapter.sgml >--- handbook.old/ppp-and-slip/chapter.sgml Mon Feb 18 23:57:54 2002 >+++ handbook/ppp-and-slip/chapter.sgml Tue Feb 19 01:11:17 2002 >@@ -73,10 +73,10 @@ > > <itemizedlist> > <listitem> >- <para>be familiar with basic network terminology.</para> >+ <para>Be familiar with basic network terminology.</para> > </listitem> > <listitem> >- <para>understand the basics and purpose of a dialup connection >+ <para>Understand the basics and purpose of a dialup connection > and PPP and/or SLIP.</para> > </listitem> > </itemizedlist> >@@ -103,6 +103,13 @@ > <sect1info> > <authorgroup> > <author> >+ <firstname>Tom</firstname> >+ <surname>Rhodes</surname> >+ <contrib>Updated and enhanced by </contrib> >+ </author> >+ </authorgroup> >+ <authorgroup> >+ <author> > <firstname>Brian</firstname> > <surname>Somers</surname> > <contrib>Originally contributed by </contrib> >@@ -186,8 +193,8 @@ > Normally, you will be given two IP addresses by your ISP to > use for this. If they have not given you at least one, then > you can use the <command>enable dns</command> command in >- your <filename>ppp.conf</filename> file to tell >- <application>ppp</application> to set the name servers for >+ your <filename>ppp.conf</filename> file to have >+ <application>ppp</application> set the name servers for > you. This feature depends on your ISPs PPP implementation > supporting DNS negotiation.</para> > </listitem> >@@ -228,7 +235,6 @@ > <para>If you do not have any of the required information, contact > your ISP.</para> > >- > <note> > <para>Throughout this section, many of the examples showing > the contents of configuration files are numbered by line. >@@ -271,7 +277,7 @@ > the existence of the <devicename>tun0</devicename> device should > be verified (this is not necessary if DEVFS is enabled as device > nodes will be created on demand).</para> >- >+ > <para>The easiest way to make sure that the > <devicename>tun0</devicename> device is configured correctly > is to remake the device. To remake the device, do the >@@ -286,137 +292,232 @@ > > <screen>&prompt.root; <userinput>cd /dev</userinput> > &prompt.root; <userinput>sh MAKEDEV tun15</userinput></screen> >- </sect3> > >- <sect3> >- <title>Name Resolution Configuration</title> >+ <sect4> >+ <title>Check the Modem</title> >+ <para>If you reconfigured your <filename>kernel</filename> >+ then you should recall the <devicename>sio</devicename> >+ device. If your modem acts like a standard serial port >+ then you most likely only need to make the serial device. >+ You can do this by changing your directory to >+ <filename>/dev</filename> and running the <filename>MAKEDEV</filename> >+ script like above. Now make the serial device with >+<screen>&prompt.root; <userinput>sh MAKEDEV cuaa</userinput></screen> >+ which will create the serial devices for your system. >+ If your modem is on <devicename>sio1</devicename> or >+ <acronym>COM2</acronym> if you are in dos, then your >+ modem device would be <devicename>/dev/cuaa1</devicename>. >+ </para> >+ </sect4> >+ </sect3> > >- <indexterm id="ppp-resolver"> >- <primary>resolver</primary> >- </indexterm> >- <indexterm id="ppp-hostname"> >- <primary><command>hostname</command></primary> >- </indexterm> >- <indexterm id="ppp-hosts"> >- <primary><filename>hosts</filename></primary> >- </indexterm> >- <para>The resolver is the part of the system that looks up IP >- addresses into hostnames and vice versa. It can be configured >- to look for maps that describe IP to hostname mappings in one of >- two places. The first is a file called >- <filename>/etc/hosts</filename>. Read &man.hosts.5; for more >- information. The second is the Internet Domain Name Service >- (DNS), a distributed data base. For more information on DNS >- and DNS services, refer to <xref linkend="dns">.</para> >- >- <para>The resolver is a set of system calls that perform the name >- mappings, but you have to tell it where to find the >- information. For versions of FreeBSD prior to 5.0. This is done by >- editing the file <filename>/etc/host.conf</filename>. >- FreeBSD 5.0 uses the <filename>/etc/nsswitch.conf</filename> file.</para> >- >- <sect4> >- <title>Edit <filename>/etc/host.conf</filename></title> >- >- <para>For versions of FreeBSD prior to 5.0, this file should >- contain the following two lines (in this order):</para> >- >- <programlisting>hosts >-bind</programlisting> >- >- <para>This instructs the resolver to first look in the file >- <filename>/etc/hosts</filename>, and to then consult the DNS >- if the name was not found.</para> >- </sect4> >- >- <sect4> >- <title>Edit <filename>/etc/nsswitch.conf</filename></title> >- >- <para>For FreeBSD version 5.0 or above, this file should >- contain at least the following line:</para> >- >- <programlisting>hosts: files, dns</programlisting> >- >- <para>This instructs the resolver to first look in the file >- <filename>/etc/hosts</filename>, and to then consult DNS >- if the name was not found.</para> >- </sect4> >- >- <sect4> >- <title>Edit <filename>/etc/hosts</filename></title> >- >- <para>This file may contain the IP addresses and names of >- machines on your local network. At a bare minimum it should >- contain >- entries for the machine which will be running ppp. Assuming >- that your machine is called <hostid >- role="fqdn">foo.example.com</hostid> with the IP address <hostid >- role="ipaddr">10.0.0.1</hostid>, >- <filename>/etc/hosts</filename> should contain:</para> >- >- <programlisting>127.0.0.1 localhost.example.com localhost >-::1 localhost.example.com localhost >-10.0.0.1 foo.example.com foo</programlisting> >- >- <para>The first two lines define the alias >- <hostid>localhost</hostid> as a synonym for the current >- machine. Regardless of your own IP address, the IP addresses >- for these lines should always be <hostid >- role="ipaddr">127.0.0.1</hostid> and <hostid >- role="ipaddr">::1</hostid>. The last line maps >- the name <hostid role="fqdn">foo.example.com</hostid> (and the >- shorthand <hostid>foo</hostid>) to the IP address <hostid >- role="ipaddr">10.0.0.1</hostid>.</para> >- >- <note> >- <para><hostid role="ipaddr">127.0.0.1</hostid> and >- <hostid>localhost</hostid> are known as loopback >- addresses, which loopback to the local machine.</para> >- </note> >- >- <para>If your provider allocates you a static IP address and >- name, and you are not using that as your host name, add this >- to the <filename>/etc/hosts</filename> too.</para> >- </sect4> >- >- <sect4> >- <title>Edit <filename>/etc/resolv.conf</filename></title> >- >- <para>The <filename>/etc/resolv.conf</filename> file tells the >- resolver how to behave. Normally, you will need to enter >- the following line(s):</para> >+ <sect3> >+ <title>Manual Connections</title> >+ <para>Connecting to the internet by manually controlling >+ <command>ppp</command> is quick, easy, and a great way >+ to debug a connection or just get information on how your >+ <acronym>ISP</acronym> handles connections. Lets start >+ <application>PPP</application> from the command line, >+ note that, in all of our examples we will use <emphasis>localhost</emphasis> >+ as the hostname of the machine running <application>PPP</application>. >+ You start <command>ppp</command> by just typing <command>ppp</command>: >+ >+<screen>&prompt.root; <userinput>ppp</userinput></screen> >+ >+ <para>We have now started <command>ppp</command></para> >+ >+<screen>ppp ON example> set device <devicename>/dev/cuaa1</devicename></screen> >+ >+ <para>We set our modem device, in this case it is >+ <devicename>cuaa1</devicename></para> >+ >+<screen>ppp ON example> set speed 115200</screen> >+ >+ <para>Set the connection speed, in this case we >+ are using 115,200 <acronym>kbps</acronym></para> >+ >+<screen>ppp ON example> enable dns</screen> >+ >+ <para>Tell <command>ppp</command> to configure our >+ resolver and add the nameserver lines to >+ <filename>/etc/resolv.conf</filename>. If we <command>ppp</command> >+ cannot determine our hostname, we can set one manually later >+ </para> >+ >+<screen>ppp ON example> term</screen> >+ >+ <para>Switch to "terminal" mode so that we can manually >+ control the modem</para> >+ >+<programlisting> >+deflink: Entering terminal mode on <devicename>/dev/cuaa1</devicename> >+type '~h' for help</programlisting> >+ >+<screen><userinput>at</userinput> >+OK >+<userinput>atdt<replaceable>123456789</replaceable></userinput></screen> >+ >+ <para>Use <command>at</command> to initialize the modem, >+ then use <command>atdt</command> and the number for your >+ <acronym>ISP</acronym> to begin the dial in process</para> >+ >+<screen>CONNECT</screen> >+ >+ <para>Confirmation of the connection, if we are going to have >+ any connection problems, unrelated to hardware, here is where >+ we will attempt to resolve them.</para> >+ >+<screen>ISP Login:<userinput>myusername</userinput></screen> >+ >+ <para>Here you are prompted for a username, return the >+ prompt with the username that was provided by the >+ <acronym>ISP</acronym></para> >+ >+<screen>ISP Pass:<userinput>mypassword</userinput></screen> >+ >+ <para>This time we are prompted for a password, just >+ reply with the password that was provided by the >+ <acronym>ISP</acronym>. Just like when logging into >+ FreeBSD, the password will not echo.</para> >+ >+<screen>Shell or PPP:<userinput>ppp</userinput></screen> >+ >+ <para>Depending on your <acronym>ISP</acronym> this prompt >+ may never appear. Here we are being asked if we wish to >+ use a shell on the provider, or to start >+ <command>ppp</command>. In this example, we have chosen >+ to use <command>ppp</command> as we want an internet >+ connection.</para> >+ >+<screen>Ppp ON example></screen> >+ >+ <para>Notice that in this example the first <option>p</option> >+ has been capitalized. This shows that we have successfully >+ connected to the <acronym>ISP</acronym>.</para> >+ >+<screen>PPp ON example></screen> >+ >+ <para>We have successfully authenticated with our >+ <acronym>ISP</acronym> and are waiting for the >+ assigned <acronym>IP</acronym> address.</para> >+ >+<screen>PPP ON example></screen> >+ >+ <para>We have made an agreement on an <acronym>IP</acronym> >+ address and successfully completed our connection</para> >+ >+<screen>PPP ON example>add default HISADDR</screen> >+ >+ <para>Here we add our default route, we need to do this >+ before we can talk to the outside world as currently the >+ only established connection is with the peer. If this >+ fails due to existing routes you can put a bang character >+ <emphasis>!</emphasis> in front of the <option>add</option>. >+ Alternatively, you can set this before making the actual connection >+ and it will negotiate a new route accordingly.</para> >+ >+ <para>If everything went good we should now have an active >+ connection to the internet, which could be thrown into >+ the background using >+ <keycombo action="simul"><keycap>CTRL</keycap> <keycap>z</keycap></keycombo> >+ If you notice the <command>PPP</command> return to >+ <command>ppp</command> then we have lost our connection. >+ This is good to know because it shows our connection status. >+ Capital P's show that we have a connection to the >+ <acronym>ISP</acronym> and lowercase p's show that the >+ connection has been lost for whatever reason. >+ <command>ppp</command> only has these 2 states. >+ </para> >+ >+ <sect4> >+ <title>Troubleshooting Manual Connections</title> >+ <para>Like everything else, once in awhile a problem or >+ may occur. <application>PPP</application> is no >+ exemption to this theory. If <command>ppp</command> >+ would happen to stop responding there are some things >+ we can try.</para> >+ >+ <para>If you have a direct line and cannot seem to make a >+ connection, then turn hardware flow <acronym>CTS/RTS</acronym> >+ to off with the <option>set ctsrts off</option>. This is >+ mainly the case if you are connected to some >+ <application>PPP</application> capable terminal servers, >+ where <application>PPP</application> hangs when it tries >+ to write data to your communication link, so it would >+ would be waiting for a <acronym>CTS</acronym>, or Clear >+ To Send signal which may never come. If you use this >+ option however, you should also use the <option>set accmap</option> >+ option, which may be required to defeat hardware dependent on >+ passing certain characters from end to end, most of the time >+ XON/XOFF. See the &man.ppp.8; man page for more information >+ on this option, and how it is used.</para> >+ >+ <para>If you have an older modem, you may need to use the >+ <option>set parity even</option>. Parity is set at none >+ be default, but is used for error checking (with a large >+ increase in traffic) on older modems and some >+ <acronym>ISP</acronym>s. You may need this option for >+ the Compuserve ISP.</para> >+ >+ <para><application>PPP</application> may not return to the >+ command mode, which is usually a negotiation error where >+ the <acronym>ISP</acronym> is waiting for your side to start >+ negotiating. At this point, using the <command>~p</command> >+ command will force ppp to start sending the configuration >+ information.</para> >+ >+ <para>If you never obtain a login prompt, then most likely you >+ you need to use <acronym>PAP</acronym> or <acronym>CHAP</acronym> >+ authentication instead of the Unix-style in the example above. To >+ use <acronym>PAP</acronym> or <acronym>CHAP</acronym> just add the >+ following options to <application>PPP</application> before going >+ into terminal mode:</para> >+ >+<screen>ppp ON localhost> <userinput>set authname <replaceable>myusername</replaceable></userinput></screen> >+ >+ <para>Where <replaceable>myusername</replaceable> should be replaced with >+ the username that was assigned by the <acronym>ISP</acronym>.</para> >+ >+<screen>ppp ON localhost> <userinput>set authkey <replaceable>mypassword</replaceable></userinput></screen> >+ >+ <para>Where <replaceable>mypassword</replaceable> should be replaced with >+ the password that was assigned by the <acronym>ISP</acronym>.</para> >+ >+ <para>If you connect fine, but cannot seem to find any domain name, try to >+ use &man.ping.8; with an <acronym>IP</acronym> address and see if you >+ can get any return information. If you experience 100 percent (100%) >+ packet loss, then its most likely that you were not assigned a default >+ route. Double check that the option <option>add default HISADDR</option> >+ was set during the connection. If you can connect to a remote >+ <acronym>IP</acronym> address then it is possible that a resolver address >+ has not been added to the <filename>/etc/resolv.conf</filename>. This >+ file should look like:</para> > > <programlisting>domain <replaceable>example.com</replaceable> > nameserver <replaceable>x.x.x.x</replaceable> > nameserver <replaceable>y.y.y.y</replaceable></programlisting> > >- <para>The <hostid >- role="ipaddr"><replaceable>x.x.x.x</replaceable></hostid> and >- <hostid role="ipaddr"><replaceable>y.y.y.y</replaceable></hostid> >- addresses are those given to you by your ISP. Add as many >- <literal>nameserver</literal> lines as your ISP provides. The >- <literal>domain</literal> line is set to your hosts >- domain name. Refer to the &man.resolv.conf.5; manual page for >- details of other possible entries in this file.</para> >- >- <para>If you are running a local name server, replace the >- above nameserver lines with:</para> >- >- <programlisting>nameserver <replaceable>0.0.0.0</replaceable></programlisting> >- >- <indexterm><primary>PPP</primary></indexterm> >- <indexterm><primary>ISP</primary></indexterm> >- <para>The <command>enable dns</command> command (entered in the >- <filename>/etc/ppp/ppp.conf</filename> file - see below) will >- tell PPP to request that your ISP confirms the nameserver values. >- If your ISP supplies different addresses (or if there are no >- nameserver lines in <filename>/etc/resolv.conf</filename>), PPP >- will rewrite the file with the ISP-supplied values.</para> >- </sect4> >+ <para>Where <replaceable>x.x.x.x</replaceable> and >+ <replaceable>y.y.y.y</replaceable> should be replaced with the >+ <acronym>IP</acronym> address of your <acronym>ISP</acronym>'s DNS servers. >+ This information may or may not have been provided when you signed up, but >+ a quick call to your <acronym>ISP</acronym> should remedy that.</para> >+ >+ <para>You could also have &man.syslog.3; provide a logging function >+ for your <application>PPP</application> connection. Just add:</para> >+ >+ <programlisting> >+ !ppp >+ *.* /var/log/ppp.log</programlisting> >+ >+ <para>to <filename>/etc/syslog.conf</filename>. In most cases, this >+ functionality already exists.</para> >+ >+ </sect4> > </sect3> > > <sect3> >- <title><application>PPP</application> Configuration</title> >+ <title>Automatic <application>PPP</application> Configuration</title> > > <indexterm><primary>PPP</primary><secondary>configuration</secondary></indexterm> > <para>Both <command>ppp</command> and <command>pppd</command> >@@ -444,7 +545,8 @@ > <para>Lines that end in a <literal>:</literal> start in > the first column (beginning of the line)— all other > lines should be indented as shown using spaces or >- tabs.</para> >+ tabs. Most of the information you need to provide here >+ was shown to us by doing the manual dial above.</para> > </note> > > <programlisting>1 default: >@@ -574,7 +676,10 @@ > > <listitem> > <para>Identifies an entry for a provider called >- <quote>provider</quote>.</para> >+ <quote>provider</quote>. This could be changed >+ to the name of your <acronym>ISP</acronym> so >+ that later you can use the <option>load ISP</option> >+ to start the connection.</para> > </listitem> > </varlistentry>
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bug 35105
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