name resolution behind linksys router

armstrtw · n00b Joined: 09 Oct 2003 Posts: 18

I have two computers (cat and dog for instance) behind a linksys router.

both obtain ip addresses via dhcp

however, when I try (from cat) ping dog, I get a host unknown error.

Same thing when I try (from dog) ping cat

I'd like to be able to use these simple hostnames for my local network (the few computers hooked up to my linksys).

Is bind the way to do this? I'm looking for as simple a solution as possible.

Thanks,
Whit

/dev/random · Posted: Thu Feb 17, 2005 3:46 am Post subject:

Just add them to /etc/hosts for example let's say cat's IP is 192.168.1.100 add this to /etc/hosts:

RSay · Posted: Thu Feb 17, 2005 4:40 am Post subject:

If Cat and Dog are always the same I think it is most convenient to just assign them fixed IP addresses. It can also make it easier to write firewall policy.

d0nju4n · Posted: Thu Feb 17, 2005 5:24 am Post subject:

Also, if you add them to /etc/hosts and their IPs change (due to dhcp) then you may run into some problems
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armstrtw · n00b Joined: 09 Oct 2003 Posts: 18

adding the IP addresses to the /etc/hosts file is exactly the quick and dirty fix I'm using now.

However, if the IP addresses change, then I'm out of luck, and that's the exact reason I don't want to use this method in the future.

Thanks for the suggestion.

DNS works for the internet, but not within my local network.

I can resovle the addresses for www.google.com, etc., but not for my other computers on my LAN...

What I'm really asking is whether bind is the tool that people use for local DNS. I've also seen some posts about masq, but I'm unfamiliar with both of those.

Thanks,
Whit

padawan · Posted: Thu Feb 17, 2005 10:37 pm Post subject:

bind is a complete dns server. If you set it up, your cat and dog can use it as their dns server, instead of your ISP's server, but it's not the easiest program to set up. But that doesn't solve your problem. What you want is your clients, cat and dog, to automatically register their IP address with the dns server after they've been asigned by dhcp.

I've managed to get bind going in the past for a small network with all static IPs, but I don't know how to do the auto-register part. Should be possible though. You would need to set up bind to allow the registration, and set up your clients to send the registration.