<para>If you have lot of <command>telnet</command>, <command>ssh</command>, X, or <command>screen</command> users,

	  <para>If you have lot of <command>telnet</command>,

            you will probably run out of pseudoterminals.  Here is how to

	    <command>ssh</command>, X, or <command>screen</command>

            add more:</para>

	    users, you will probably run out of pseudoterminals.  There

	    is lot of them available in the recent base installations by

            <procedure>

	    default, so the chances are low that you will have to

              <step>

	    increase their number indeed.</para>

                <para>Build and install a new kernel with the line in

                  the configuration file:</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 <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[pqrsPQRSlmnoLMNO][0123456789abcdefghijklmnopqrstuv]</literal>, using a

                  regular expression.</para>

              </step>

              <step>

                <para>Reboot the system with the new kernel and you are

                  ready to go.</para>

              </step>

            </procedure>

	    <para>Using more than 256 (up to 512) &man.pty.4; devices requires

	    <para>If you want to use more than 256 (up to 512)

	      &os;&nbsp;6.3 or later.</para>

	      &man.pty.4; devices that will require &os; 6.3 and

	      &os;&nbsp;7.0 or later.</para>