[Koha] Error installing koha 3

[Adnier Rosello Carrazana]

Hello for every one,

I have installed Debian Lenny 5.0 stable, and I want install koha 3, but at the course
of the installation it break and show this error:

Could not get the IP address of lenny_machine, DNS fault? at rewrite-config.PL line 68.
make: *** [blib/KOHA_CONF_DIR/koha-conf.xml] Error 110


if you can help me with this I will be very grateful.

Thanks!