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Update Question 10.18:

Browse source 
- Rewrite "lots of" as "lot of" (suggested by trhodes)
- Mark up telnet, ssh, screen with <command>
- Fix broken paragraphs (suggested by gabor)
- Remove MAKEDEV(8) method
- Update "pseudo-device" kernel option to "device"
- Generalize answer
- Note users have 256 ptys beginning from FreeBSD 6.3 and they
  can create 256 more

Reviewed by:  trhodes, danger
Approved by:  gabor
This commit is contained in:
Gabor Pali 2008-06-21 07:37:52 +00:00
parent c6e8387505
commit bb3746e44a
Notes: svn2git 2020-12-08 03:00:23 +00:00 
svn path=/head/; revision=32334
1 changed files with 16 additions and 19 deletions
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35
en_US.ISO8859-1/books/faq/book.sgml
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@ -6234,39 +6234,31 @@ options SYSVMSG # enable for messaging</programlisting>
<answer>
<para>If you have lots of telnet, ssh, X, or screen users,
<para>If you have lot of <command>telnet</command>, <command>ssh</command>, X, or <command>screen</command> users,
you will probably run out of pseudoterminals. Here is how to
add more:</para>
<procedure>
<step>
<para>Build and install a new kernel with the line</para>
<para>Build and install a new kernel with the line in
the configuration file:</para>
<programlisting>pseudo-device pty 256</programlisting>
<para>in the configuration file.</para>
</step>
<step>
<para>Run the commands</para>
<screen>&prompt.root; <userinput>cd /dev</userinput>
&prompt.root; <userinput>sh MAKEDEV pty{1,2,3,4,5,6,7}</userinput></screen>
<para>to make 256 device nodes for the new terminals.</para>
<programlisting>device pty <replaceable>N</replaceable></programlisting>
<para>where <replaceable>N</replaceable> is the number
of requested pseudoterminals.</para>
</step>
<step>
<para>Edit <filename>/etc/ttys</filename> and add lines
for each of the 256 terminals. They should match the form
of the existing entries, i.e. they look like</para>
for each of the <replaceable>N</replaceable> terminals. They should match the form
of the existing entries, i.e. they look like this:</para>
<programlisting>ttyqc none network</programlisting>
<para>The order of the letter designations is
<literal>tty[pqrsPQRS][0-9a-v]</literal>, using a
regular expression. </para>
<literal>tty[pqrsPQRSlmnoLMNO][0123456789abcdefghijklmnopqrstuv]</literal>, using a
regular expression.</para>
</step>
<step>
@ -6274,7 +6266,12 @@ options SYSVMSG # enable for messaging</programlisting>
ready to go.</para>
</step>
</procedure>
</answer>
<note>
<para>Using more than 256 (up to 512) &man.pty.4; devices requires
&os;&nbsp;6.3 or later.</para>
</note>
</answer>
</qandaentry>
<qandaentry>