Network authentication

I am having trouble connecting to a database on a debian server from a
client system, also debian. Acccording to the documentation, this is
possible without a password and offers the following example,

host template1 all 192.168.93.0 255.255.255.0 \
ident sameuser

My pg_hba.conf file has a line,

host all all 192.168.1.0 255.255.255.0 \
ident sameuser

Also, the client system has an account with the same name and password
as an account on the server. However, connection fails with psql after
logging into that account. I can, however, ssh to the server and connect
from there; but there are reasons why I don't want to use ssh with this
project. Anyway, is the documentation wrong, or am I misinterpreting
something?

In addition I noticed that if I have a second line in the pg_hba.conf file,

host all all 192.168.1.0 255.255.255.0 md5

coming before the other line, I can connect to the server database using
a password. However, if it follows the line, I cannot. Am I doing
something wrong here also?

Thanks for any help.

--
Bob Parnes
rparnes(at)megalink(dot)net