背景介绍：
PostgreSQL服务端执行在RedHat Linux上,IP为：192.168.230.128
client安装在Windows XP上， IP为：192.168.230.1
配置方法：
1. 改动服务端/opt/postgresql/data/postgresql.conf文件,将
#listen_address='localhost'改成listen_address='*'
2. 改动/opt/postgresql/data/gp_hba.conf文件
在当中添加client的ip，例如以下,注意最后一行：
# TYPE DATABASE USER CIDR-ADDRESS METHOD# "local" is for Unix domain socket connections only
local all all trust
# IPv4 local connections:
host all all 127.0.0.1/32 trust
# IPv6 local connections:
host all all ::1/128 trust#kevin add
# IPv4 local connections:
host all all 192.168.230.1/32 trust
3.重新启动PG服务
[postgres@localhost data]$ pg_ctl restart
waiting for server to shut down....LOG: received smart shutdown request
LOG: autovacuum launcher shutting down
LOG: shutting down
LOG: database system is shut down
done
server stopped
server starting
[postgres@localhost data]$ LOG: database system was shut down at 2011-07-09 14:54:29 CST
LOG: autovacuum launcher started
LOG: database system is ready to accept connections[postgres@localhost data]$
4. 使用client连接，配置例如以下：
5.点击“确定”进行连接，成功后，例如以下：
