[SOLVED] dhcp host names

Question

I'm trying to set a host name for myself when using dhcpcd. I have tried both hostnamectl and the hostname variable in dhcpcd.conf. Still, when I try to open an ssh session from another computer, it does not recognize the hostname that I've designated. It looks like DDNS is required for dhcp host names if I'm not mistaken. Would setting DDNS up for my public IP address allow dhcp host names for the router connected to it?
Last edited by boblitz13 (2013-01-16 22:10:51)

Answer 1

Oh I see. Well, is not exactly what I though, but sill can be solved by using dnsmasq.
If your router has DNS, then you only need it to resolve your hostname by the ip. Normally, in my experience, just because the router can detect your hostname, does not pass it to the machines on the lan, You need to specify it using a DNS.
Again, if your router has DNS, just add your laptops ip and its hostname there. (using the router is the easiest way)
If your router does not have DNS, you can configure a DNS server. And thats what dnsmasq is. install dnsmasq on a machine on your lan, and that machine will become your dns server, and add your laptop ip and hostname on the /etc/hosts there.
Now, you'll need that the other machines use your DNS server.
If they run linux, add the ip of the server to /etc/resolv.conf.head of each machine, or, if your router allows it, change the parameters of dhcp, so it assigns the ip of your server as default DNS.
Read the wiki article Dnsmasq, for more information. And, read your router manual to see if it has DNS service.
(A less perfect, but more simple aproach is to add the ip and hostname of your laptop on the /etc/hosts of the  machine where you are trying to use ssh; it will work only on that machine, but is faster and easier)