原因是$ZBX_SERVER,我配了外网地址,这里应该配成内网的：
# cat /etc/zabbix/web/zabbix.conf.php
<?php
// Zabbix GUI configuration file.
global $DB;
$DB['TYPE'] = 'MYSQL';
$DB['SERVER'] = 'localhost';
$DB['PORT'] = '0';
$DB['DATABASE'] = 'zabbix';
$DB['USER'] = 'baidu';
$DB['PASSWORD'] = 'baidu1456';
// Schema name. Used for IBM DB2 and PostgreSQL.
$DB['SCHEMA'] = '';
$ZBX_SERVER = '10.178.6.x2';
$ZBX_SERVER_PORT = '10051';
$ZBX_SERVER_NAME = 'baidu.zabbix';
$IMAGE_FORMAT_DEFAULT = IMAGE_FORMAT_PNG;
?>网名：bass 分享技术 突破难点 创新思维
