Is the postmaster running (with -i) at 'localhost

I get an error msg when run Zeos Database Explorer:

connectDBStart() -- connect() failed: No error
Is the postmaster running (with -i) at 'localhost'
and accepting connections on TCP/IP port '5432'?

How to resolv it?

# ps axww|grep postmaster
1025 ? S 0:00 /bin/sh /usr/bin/pg_ctl -D /var/lib/pgsql/data -p /us
r/bin/postmaster start
1028 ? S 0:00 /usr/bin/postmaster
1349 pts/0 R 0:00 grep postmaster

/var/lib/pgsql/data/pg_hba.conf:

local all trust
host all 127.0.0.1 255.255.255.255 trust

host all 192.168.1.95 255.255.0.0 trust
host all 192.168.1.95 255.255.0.0 password
host all 192.168.0.0 255.255.0.0 crypt

--
 :Ei bbs.yeskw.comE[FROM: dns.hiperfect.com]