Is the postmaster running (with -i) at 'localhost - Mailing list pgsql-general

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

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