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  • June 22, 2000 at 2:53 am #2075568

    Workstations interoperating w/NT & Linux

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    by pinoy · about 24 years, 10 months ago

    Linux is my DNS, NT is my PDC, Proxy. I recently have installed NIC in Linux for local IP, NT has 1 NIC for local & valid. Linux (valid IP) & NT (valid IP) share common gateway. THEY CAN PING EACH OTHER.

    Problem. workstations can ping & log to NT but not w/ Linux using local IP. Linux also cannot ping local IPs, request timeout error. All WS uses Linux as it’s DNS & gateway.

    Requirement. Provide troubleshooting procedures or analysis, most importantly, solution.

    Topic is locked This conversation is currently closed to new comments.
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    • June 22, 2000 at 3:02 am #3784404

      Workstations interoperating w/NT & Linux

      by mcessna · about 24 years, 10 months ago

      In reply to Workstations interoperating w/NT & Linux

      I’m trying to figure out yout topology, is the linux box behind the NT proxy? Does the Linux have two NIC one public, one private? I think your problem has to do with your gateway and routing but I need to know exactly how the boxes are interconnected

      • June 23, 2000 at 5:47 am #3783615

        Workstations interoperating w/NT & Linux

        by pinoy · about 24 years, 10 months ago

        In reply to Workstations interoperating w/NT & Linux

        Linux is DNS, so it must be outside of proxy. 2 NIC?….i said so. Problem w/ gateway…i don’t think so coz NT & Linux can communicate well.

    • June 22, 2000 at 3:17 am #3784396

      Workstations interoperating w/NT & Linux

      by timgray · about 24 years, 10 months ago

      In reply to Workstations interoperating w/NT & Linux

      First off, you need to have samba running. Configure samba on the Linux box to a netbios name, create that machine account on your PDC and then set the linux box to authenticate to the domain. now, you have to do some really really tricky changes inthe linux-samba to get the samba box to authinticate the domain users on it’sself.
      Email me ([email protected]) and I’ll send you my config files.

      if you dont know linux and samba backwards and in your sleep, you will not get this working.

    • June 22, 2000 at 11:34 am #3783826

      Workstations interoperating w/NT & Linux

      by mckaytech · about 24 years, 10 months ago

      In reply to Workstations interoperating w/NT & Linux

      It sounds like you have a gateway issue. I’m going to assume the IP addresses are fine. Here’s how the gateway addresses should work:
      Linux box – gateway should be the internal IP on the Proxy server
      NT box – gateway on the internal IP should beset to the external IP and the external set to the ISP gateway
      Workstations – gateway should be set to the internal IP on the Proxy server; DNS should be set to the internal address of the Linux box.
      You do NOT need Samba for this situation – it is for printer and file sharing, not routing of IP packets.

      paul

    • June 22, 2000 at 9:46 pm #3783747

      Workstations interoperating w/NT & Linux

      by hugevlad · about 24 years, 10 months ago

      In reply to Workstations interoperating w/NT & Linux

      There is not enough information, but I try to help.
      1. All WS uses Linux as DNS & gateway, but can`t log into & ping using local IP. Thus, DNS & GW assigned to external (valid) IP of Linux mashine. I am right ?
      2. It is possible to log into linux-box using external (valid) IP ? I think, yes, because DNS works.
      3. Look like, that internal (local) IP on linux-box not configured properly.
      ———–
      Try step-by-step:
      1. Issue ‘ifconfig’ on linux-box and be sure, that either interfaces are up, have correct IP and netmask.
      2. Issue ‘route’ on linux-box. Check, that route table has entry for external network (with valid IP) and local network. For linux kernel before 2.2.x you need add this route manualy. 2.2.x make this automaticaly.
      3.Use ‘traceroute ‘ on linux box to find out where ICMP packets lost. Then try from other side: use tracert on Win-station to check this problem.

      WIth best regards,
      Vlad
      mailto:[email protected]

      • June 23, 2000 at 5:47 am #3783618

        Workstations interoperating w/NT & Linux

        by pinoy · about 24 years, 10 months ago

        In reply to Workstations interoperating w/NT & Linux

        I think you’re right in almost all, except that i don’t know where you’re heading me. I need a solution.

    • June 23, 2000 at 5:23 am #3783629

      Workstations interoperating w/NT & Linux

      by nold · about 24 years, 10 months ago

      In reply to Workstations interoperating w/NT & Linux

      I supposed your problem started w/Linux when you installed the LAN NICard. I have done a couple of installation in Linux that
      point out to thesame mistake. Especially if you have same make & model NIC, in Linux. for valid and local IP.

      Traceroute each card to see where packets are going. I think you’re connected in a switch, both LAN & valid, since you can ping NT & Linux wether it be local or valid.

      Procedure:
      In Linux
      1. Traceroute each NIC, there’s a possibility that the local NIC sends packets to a valid IP, that’s why you have the error REQUEST TIMEOUT. If that happens you have a misconfigured NIC.
      2. Look at your NIC’s config–ifconfig. Make sure that eth0 is used for the LAN.
      3. Make sure your eth1 that uses your valid IP.
      5. Now traceroute each NIC, your local NIC should not use the gateway of the valid IP.
      6. Then finally ping. there should be no error.

      Good Luck!

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