ident authentication over tcp

Hi all,

I'm having some trouble configuring ident authentication for TCP
connections. I can get it to work fine for local connections, but I
can't

Local connection:

$ psql postgres
...
postgres=>

Server Log:
Dec  9 11:06:59 mitchell postgres[27482]: [4-1] LOG:  connection
received: host=[local]
Dec  9 11:06:59 mitchell postgres[27482]: [5-1] LOG:  connection
authorized: user=koczan database=postgres
Dec  9 11:07:03 mitchell postgres[27482]: [6-1] LOG:  disconnection:
session time: 0:00:04.370 user=koczan database=postgres host=[local]

Remote connection to localhost:
$ psql -h localhost postgres
psql: FATAL:  no pg_hba.conf entry for host "127.0.0.1", user
"koczan", database "postgres", SSL off

Server log:
Dec  9 11:07:06 mitchell postgres[27494]: [4-1] LOG:  connection
received: host=localhost port=41434
Dec  9 11:07:06 mitchell postgres[27494]: [5-1] LOG:  could not
connect to Ident server at address "127.0.0.1", port 113: Connection
refused
Dec  9 11:07:06 mitchell postgres[27494]: [6-1] FATAL:  Ident
authentication failed for user "koczan"
Dec  9 11:07:06 mitchell postgres[27495]: [4-1] LOG:  connection
received: host=localhost port=41435
Dec  9 11:07:06 mitchell postgres[27495]: [5-1] FATAL:  no pg_hba.conf
entry for host "127.0.0.1", user "koczan", database "postgres", SSL
off

My pg_hba.conf file looks like this:
# TYPE  DATABASE    USER        CIDR-ADDRESS       METHOD

local   all         koczan      ident sameuser
hostssl all         koczan      127.0.0.1/32       ident sameuser

I'm running Red Hat Enterprise 5.4, and I can't find any place where
an ident server is actually running on this host.

How is it working for local connections, and what might I be able to
do to get it to work for localhost TCP connections.

Thanks,
Peter