怎样修改apache出错信息

李博

当我打入一个不存在的叶面的时候，最下面都会提示：

Not Found
The requested URL /1.html was not found on this server.
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Apache/2.0.46 (Red Hat) Server at 172.20.21.126 Port 80

有啥办法可以去掉以下信息：
Apache/2.0.46 (Red Hat) Server at 172.20.21.126 Port 80