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Re: DNS Servers for IRLP?

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  • Mike, KC7VE
    Thanks dave. Didn t want to send you too many questions, on stuff I should have already know. Mike
    Message 1 of 6 , Mar 20, 2013
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      Thanks dave. Didn't want to send you too many questions, on stuff I should have already know.

      Mike

      --- In irlp-embedded@yahoogroups.com, "David Cameron (IRLP)" <dcameron@...> wrote:
      >
      > The standard way to set a static IP on an IRLP node consists of the node
      > getting an automatic IP (and netmask, gateway, and DNS server list) from
      > a DHCP server (your router). We then guess and test another IP address
      > within the network, and assign that.
      >
      > Therefore, you never have to type in the gateway, netmask, or DNS servers.
      >
      > But if someone from the "outside" is setting up the node for you, they
      > need to know parameters about your network, or the node will not work
      > when it arrives,
      >
      > The netmask is likely 255.255.255.0, and can be seen in the same
      > ifconfig eth0
      > command as you run to see the IP address.
      >
      > The gateway is the IP of your router. You can see it in the
      > route
      > command
      >
      > The DNS servers are the addresses your node uses to change thinks like
      > www.google.com into an IP address. They are stored in the
      > /etc/resolv.conf file.
      >
      > Dave Cameron
      > VE7LTD
      >
      > On 3/20/2013 9:29 AM, Mike, KC7VE wrote:
      > > I'm having another node set up and I'm supposed to provide DNS servers, netmask and gateway. But I don't know what these should be.
      > >
      > > Let me say a couple things first.
      > >
      > > 1) I currently have 2 nodes and have NEVER set, specified nor do I know what the DNS servers are, for them, if they even exist for my IRLP nodes. Both nodes work perfectly.
      > >
      > > 2) I know very well what a DNS server is and what it does, so that is not my problem. Please don't try to educate me on what DNS servers are. :-)
      > >
      > > 3) I've used one of my nodes alternately on a cell connection and a fixed cable connection, which are on completely different networks, so I'm confused on why the gateway is even necessary, since it's different for the two different networks.
      > >
      > > Can someone explain:
      > > 1) Why the DNS servers are needed, considering I have never specified one for either of my two existing nodes? Perhaps they were configured with them, when they were delivered, without my knowledge.
      > >
      > > stn4581.ip.irlp.net uses a DNS but that one was setup by Dave. That's the only network domain name that I use.
      > >
      > > 2) If a DNS is needed what is it that is resolved to my IP? Is it my node number, some network address that I'm not aware of, what?
      > >
      > > 3) If the gateway and netmask is important, why is it that I can swap my node between a cell connection and a cable connection, with different gateways and it still works? And how would it work on a cell connection which might change as I drive around the country?
      > >
      > > 4) On my two nodes, I have never had to specify, nor do I know what the DNS servers are. Why do they work if I've never specified one?
      > >
      > > Anyone want to take a stab at clearing this up. I hate to bother Dave about something that apparently I should have already known. :-)
      > >
      > > Thanks,
      > > Mike
      > > KC7VE
      > >
      > >
      >
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