I'm pretty much a n00b at Linux and I'm wndering if anyone can help.

I try installing but it does nothing. When I try to install from the console it gives me this.

[root@localhost root]# rpm -ivh dosbox.rpm
warning: dosbox.rpm: V3 DSA signature: NOKEY, key ID 6b8d79e6
error: Failed dependencies:
libSDL_net-1.2.so.0 is needed by dosbox-0.60-0.rh90.dag

I have no clue whats wrong. Especially since I just installed the SDL package.