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<TITLE>Administration Reference</TITLE>
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<A NAME="Top_Of_Page"></A>
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<H1>Administration Reference</H1>
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<HR><P ALIGN="center"> <A HREF="../index.htm"><IMG SRC="../books.gif" BORDER="0" ALT="[Return to Library]"></A> <A HREF="auarf002.htm#ToC"><IMG SRC="../toc.gif" BORDER="0" ALT="[Contents]"></A> <A HREF="auarf178.htm"><IMG SRC="../prev.gif" BORDER="0" ALT="[Previous Topic]"></A> <A HREF="#Bot_Of_Page"><IMG SRC="../bot.gif" BORDER="0" ALT="[Bottom of Topic]"></A> <A HREF="auarf180.htm"><IMG SRC="../next.gif" BORDER="0" ALT="[Next Topic]"></A> <A HREF="auarf284.htm#HDRINDEX"><IMG SRC="../index.gif" BORDER="0" ALT="[Index]"></A> <P>
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<P>
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<H2><A NAME="HDRINETD" HREF="auarf002.htm#ToC_193">inetd (AFS version)</A></H2>
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<A NAME="IDX5049"></A>
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<A NAME="IDX5050"></A>
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<A NAME="IDX5051"></A>
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<A NAME="IDX5052"></A>
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<A NAME="IDX5053"></A>
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<P><STRONG>Purpose</STRONG>
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<P>Initializes the Internet service daemon
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<P><STRONG>Synopsis</STRONG>
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<PRE><B>inetd</B> [<B>-d</B>] [<<VAR>configfile</VAR>>]
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</PRE>
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<P><STRONG>Description</STRONG>
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<P>The AFS-modified <B>inetd</B> program functions like the standard UNIX
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<B>inetd</B> program, but also enables users of the remote services it
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supports to access them as authenticated AFS users, provided that the
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supported services are also AFS-modified versions that pass AFS tokens
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(authentication information). Examples of supported services are the
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<B>rcp</B> and <B>rsh</B> programs.
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<P>The AFS <B>inetd</B> program can service the standard UNIX versions of
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the remote services, but it is instead recommended that the standard UNIX
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version of the <B>inetd</B> program be run in parallel with the AFS
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version. Name the AFS version something like
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<B>inetd.afs</B> and use it to service requests from AFS-modified
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programs; use the standard <B>inetd</B> program to service requests
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from standard UNIX programs. This separation requires using two
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different <B>inetd.conf</B> files, as described in the following
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section.
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<P><STRONG>Cautions</STRONG>
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<P>Several configuration changes are necessary for token passing to work
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correctly with the AFS version of the <B>inetd</B> program. There
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are possibly other UNIX-based requirements or restrictions not mentioned
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here; consult the UNIX manual page. (One important restriction is
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that there can be no blank lines in the configuration file other than at the
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end.)
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<P>The requirements and restrictions include the following. They assume
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that the <B>inetd.afs</B> process is running in parallel with the
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standard <B>inetd</B> process.
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<UL>
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<P><LI>For token passing to work, the request must come from the AFS version of
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the remote service (such as the AFS <B>rcp</B> or AFS <B>rsh</B>
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command). If the remote service is the standard UNIX version, it cannot
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pass a token. The issuer of the remote command is authenticated only in
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the local file system, not with AFS.
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<P><LI>The machine's initialization files (<B>/etc/rc</B> file or
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equivalent) must invoke both the standard <B>inetd</B> and
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<B>inetd.afs</B> programs.
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<P><LI>An AFS-specific <B>inetd.conf</B> file, perhaps called
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<B>inetd.conf.afs</B>, must exist alongside the standard
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one. When initializing the <B>inetd.afs</B> program, specify
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this configuration file rather than the standard one. Each line in the
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<B>inetd.conf.afs</B> file must include an additional field,
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fifth from the left, to specify the identity under which the program is to
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run. The normal choice is the local superuser <B>root</B>.
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The following sample shows the only lines that need to appear in this
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file:
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<PRE> ta-rauth stream tcp nowait root internal ta-rauth
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shell stream tcp nowait root /usr/etc/rshd rshd
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login stream tcp nowait root /usr/etc/rlogind rlogind
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</PRE>
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<P>Substitute appropriate values for the binary locations and names in the
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instructions, particularly for the <TT>shell</TT> and <TT>login</TT>
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processes. Include the <TT>login</TT> instruction only if the
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AFS-modified versions of login utilities are also in use in the cell;
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otherwise, refer to <TT>login</TT> in the standard
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<B>inetd.conf</B> instead.
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<P>Note also that some system types use different process names. For
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example, on Sun system types change <TT>rshd</TT> to
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<TT>in.rshd</TT> and <TT>rlogind.afs</TT> to
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<TT>in.rlogind.afs</TT> in the <TT>shell</TT> and
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<TT>login</TT> instructions, respectively.
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<P><LI>Edit the standard <B>inetd.conf</B> file (referenced by the
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standard <B>inetd</B> process): comment out the <TT>shell</TT>
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instruction and, if AFS-modified versions of login utilities are in use in the
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cell, the <TT>login</TT> instruction. The
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<B>inetd.conf.afs</B> file references these processes
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instead. Retain the <TT>login</TT> instruction if AFS-modified
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versions of login utilities are not being used. Alter the
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<TT>ftp</TT> instruction to refer to the AFS version of the <B>ftpd</B>
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process, if it is substituted for the standard version. Do not insert
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the extra fifth column into instructions in the standard
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<B>inetd.conf</B> file if it does not already appear there.
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See the following <B>Examples</B> section for an illustration.
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</UL>
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<P><STRONG>Options</STRONG>
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<P>See the UNIX manual page for the <B>inetd</B> program.
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<P><STRONG>Examples</STRONG>
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<P>The following are sample <B>inetd.conf.afs</B> and
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<B>inetd.conf</B> files, appropriate for use when the
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<B>inetd.afs</B> program is running in parallel with the standard
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<B>inetd</B> and AFS-modified login utilities are being used in the
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cell. Changes to the standard <B>inetd.conf</B> file include
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referencing the AFS version of the <B>ftpd</B> binary and commenting out
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the <TT>shell</TT> and <TT>login</TT> lines. The example
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<B>inetd.conf</B> file does not include the extra fifth
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column. Do not use these examples without modifying them appropriately
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for the local machine type or cell.
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<PRE> # AFS version of Internet server configuration database
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#(EXAMPLE ONLY)
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#
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ta-rauth stream tcp nowait root internal ta-rauth
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shell stream tcp nowait root /usr/etc/rshd rshd
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login stream tcp nowait root /usr/etc/rlogind rlogind
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# Standard version of Internet server configuration database
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#(EXAMPLE ONLY)
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#
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ftp stream tcp nowait /etc/ftpd.afs ftpd.afs
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telnet stream tcp nowait /etc/telnetd telnetd
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#shell stream tcp nowait /etc/rshd rshd
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#login stream tcp nowait /etc/rlogind rlogind
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finger stream tcp nowait /usr/etc/fingd fingd
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uucp stream tcp nowait /etc/uucpd uucpd
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exec stream tcp nowait /etc/rexecd rexecd
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comsat dgram udp wait /etc/comsat comsat
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talk dgram udp wait /etc/talkd talkd
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ntalk dgram udp wait /usr/etc/ntalkd talkd
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time dgram udp wait /etc/miscd timed
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</PRE>
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<P><STRONG>Privilege Required</STRONG>
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<P>See the UNIX manual page for the <B>inetd</B> program.
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<P><STRONG>Related Information</STRONG>
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<P><A HREF="auarf228.htm#HDRRCP">rcp (AFS version)</A>
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<P><A HREF="auarf229.htm#HDRRSH">rsh (AFS version)</A>
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<P>UNIX manual page for <B>inetd</B>
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<P>
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<HR><P ALIGN="center"> <A HREF="../index.htm"><IMG SRC="../books.gif" BORDER="0" ALT="[Return to Library]"></A> <A HREF="auarf002.htm#ToC"><IMG SRC="../toc.gif" BORDER="0" ALT="[Contents]"></A> <A HREF="auarf178.htm"><IMG SRC="../prev.gif" BORDER="0" ALT="[Previous Topic]"></A> <A HREF="#Top_Of_Page"><IMG SRC="../top.gif" BORDER="0" ALT="[Top of Topic]"></A> <A HREF="auarf180.htm"><IMG SRC="../next.gif" BORDER="0" ALT="[Next Topic]"></A> <A HREF="auarf284.htm#HDRINDEX"><IMG SRC="../index.gif" BORDER="0" ALT="[Index]"></A> <P>
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