37 lines
2.2 KiB
HTML
37 lines
2.2 KiB
HTML
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<TITLE>Root over NFS - Another Approach: The magic time</TITLE>
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<LINK HREF="Diskless-root-NFS-other-HOWTO-6.html" REL=next>
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<LINK HREF="Diskless-root-NFS-other-HOWTO-4.html" REL=previous>
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<A HREF="Diskless-root-NFS-other-HOWTO.html#toc5">Contents</A>
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<H2><A NAME="s5">5. The magic time</A></H2>
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<P>In this section will be discused all the problems that you have and the changes that you propose to the installation.
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Please feel free to email me and ask about any difficult or not mentioned points in this document.
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My email is cs98011@icsd.aegean.gr
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<P><B>Q: A DHCP is already running. How do I configure BOOTP, so as no interaction is made with the DHCP?</B>
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<P><B>A:</B> This was the main problem I faced when I installed the system on a running network. DHCP and BOOTP use the same port.
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When a windows client boots, it issues a DHCP/BOOTP request to locate its IP (of course in case of dynamic IP). When the
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DHCP server responds, it also returns the IP's of DNS servers, print servers and Domain Controlers. My BOOTP server was
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responding faster than the Microsoft DHCP server, an so Windows clients were unable to locate their Domain controler. This
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resulted to users not being able to login! The solution described here was donated by D. Spinellis.
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<P>Open the <CODE>/usr/src/linux/net/ipv4</CODE> file. This is were all BOOTP autoconfiguration is done.
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Search for <CODE>udph.source</CODE>,<CODE>udph.dest</CODE> variables. You will see that they are set to the standard 67/68
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request/responce ports. Change BOTH values so they use an unused UDP port in your network. A good port pair that no
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application uses it is 967/968. Now, start your DHCPd with the -p 967 option. Everything must be working OK!
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<P>
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<A HREF="Diskless-root-NFS-other-HOWTO.html#toc5">Contents</A>
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