My command prompt looks like the following:

[myname@localhost myname]


I thought localhost was set from the DHCP hostname set in network config. However changing that doesn't change the prompt. Where is that value set and how do I change it? Thanks!

You can use the system-config-network utility to set the hostname. Click the DNS tab once the config-network utility is started and you'll see the box to set hostname. That will set the hostname in the /etc/sysconfig/network file by adding the line

HOSTNAME=yourhostname

Here is one "gotcha" when using the system-config-network gui. I used it to simply change the hostname of my machine. I changed nothing else but the hostname. When I saved the information the following was added to the configuration file for all network devices on my system:

PEERDNS=no

What that does is prevent your /etc/resolv.conf file from being overwritten. That prevents name resolution from working!!! So if you have your devices setup to use DHCP and you are expecting your dns servers to be updated make sure you either remove that PEERDNS line or change it to

PEERDNS=yes

hmm ok..now i know...by the way where is it in the command shell....