Thank you very much

Here is the content of that file:

# Do not remove the following line, or various programs
# that require network functionality will fail.
127.0.0.1 localhost.localdomain localhost

I think it´s ok

>
> Open the file /etc/hosts in a text editor and check that there is

an entry

> there. You might find you need to use localhost.localdomain, e.g.
>
> 127.0.0.1 localhost
>
> If the entry isn't there add it; if it is there, close hosts and

open

> hosts.allow in the same dir. Make an entry for it there as well.
>
> ./hb