old-www/HOWTO/VPN-HOWTO/x245.html

206 lines
2.9 KiB
HTML

<HTML
><HEAD
><TITLE
>User Access - letting people in</TITLE
><META
NAME="GENERATOR"
CONTENT="Modular DocBook HTML Stylesheet Version 1.76b+
"><LINK
REL="HOME"
TITLE="VPN HOWTO"
HREF="index.html"><LINK
REL="UP"
TITLE="Server"
HREF="c224.html"><LINK
REL="PREVIOUS"
TITLE="Security - keeping people out"
HREF="x227.html"><LINK
REL="NEXT"
TITLE="Restricting Users"
HREF="x256.html"></HEAD
><BODY
CLASS="sect1"
BGCOLOR="#FFFFFF"
TEXT="#000000"
LINK="#0000FF"
VLINK="#840084"
ALINK="#0000FF"
><DIV
CLASS="NAVHEADER"
><TABLE
SUMMARY="Header navigation table"
WIDTH="100%"
BORDER="0"
CELLPADDING="0"
CELLSPACING="0"
><TR
><TH
COLSPAN="3"
ALIGN="center"
>VPN HOWTO</TH
></TR
><TR
><TD
WIDTH="10%"
ALIGN="left"
VALIGN="bottom"
><A
HREF="x227.html"
ACCESSKEY="P"
>Prev</A
></TD
><TD
WIDTH="80%"
ALIGN="center"
VALIGN="bottom"
>Chapter 3. Server</TD
><TD
WIDTH="10%"
ALIGN="right"
VALIGN="bottom"
><A
HREF="x256.html"
ACCESSKEY="N"
>Next</A
></TD
></TR
></TABLE
><HR
ALIGN="LEFT"
WIDTH="100%"></DIV
><DIV
CLASS="sect1"
><H1
CLASS="sect1"
><A
NAME="AEN245">3.2. User Access - letting people in</H1
><P
>&#13;User access is done via ssh's authentication scheme. As stated
above, this is how users get access to the system, while maintaining a
high level of security. If you're not familiar with ssh, check out
<A
HREF="http://www.ssh.org/"
TARGET="_top"
>http://www.ssh.org/</A
>. Note that I am
using ssh version 1, not version 2. There is a big difference, notably
that version 1 is free, and 2 isn't.
</P
><DIV
CLASS="sect2"
><H2
CLASS="sect2"
><A
NAME="AEN249">3.2.1. Configuring <B
CLASS="command"
>sshd</B
></H2
><P
>&#13;You'll need to configure <B
CLASS="command"
>sshd</B
>.
The idea is to disable password authentication and rhosts
authentication. The following options should be present in your
<TT
CLASS="filename"
>/etc/sshd_config</TT
> file.
</P
><TABLE
BORDER="0"
BGCOLOR="#E0E0E0"
WIDTH="100%"
><TR
><TD
><FONT
COLOR="#000000"
><PRE
CLASS="screen"
>&#13;PermitRootLogin yes
IgnoreRhosts yes
StrictModes yes
QuietMode no
CheckMail no
IdleTimeout 3d
X11Forwarding no
PrintMotd no
KeepAlive yes
RhostsAuthentication no
RhostsRSAAuthentication no
RSAAuthentication yes
PasswordAuthentication no
PermitEmptyPasswords no
UseLogin no
</PRE
></FONT
></TD
></TR
></TABLE
></DIV
></DIV
><DIV
CLASS="NAVFOOTER"
><HR
ALIGN="LEFT"
WIDTH="100%"><TABLE
SUMMARY="Footer navigation table"
WIDTH="100%"
BORDER="0"
CELLPADDING="0"
CELLSPACING="0"
><TR
><TD
WIDTH="33%"
ALIGN="left"
VALIGN="top"
><A
HREF="x227.html"
ACCESSKEY="P"
>Prev</A
></TD
><TD
WIDTH="34%"
ALIGN="center"
VALIGN="top"
><A
HREF="index.html"
ACCESSKEY="H"
>Home</A
></TD
><TD
WIDTH="33%"
ALIGN="right"
VALIGN="top"
><A
HREF="x256.html"
ACCESSKEY="N"
>Next</A
></TD
></TR
><TR
><TD
WIDTH="33%"
ALIGN="left"
VALIGN="top"
>Security - keeping people out</TD
><TD
WIDTH="34%"
ALIGN="center"
VALIGN="top"
><A
HREF="c224.html"
ACCESSKEY="U"
>Up</A
></TD
><TD
WIDTH="33%"
ALIGN="right"
VALIGN="top"
>Restricting Users</TD
></TR
></TABLE
></DIV
></BODY
></HTML
>