关于程序使用的有关问题,朋友们来看看
关于程序使用的问题,朋友们来看看。
向各位请教两个问题。
问题一:
像网上有些程序如ecshop这些,如果你是免费使用的,那么只能使用30天,过期了就不能用;如果你是付费的,那么就可以使用一年,一年后如果你不续费就不能用。请问是怎么实现的呢?
问题二:
一个网站,我给了a使用,一旦他正式上线了(a.com),就只能他这一个网站(a.com)使用,如果想用到b.com就不行,请问这样的可以实现吗?如果可以,原理能否讲一下呢?谢谢了。
------解决方案--------------------
软件多使用系统文件(比如 windows 的注册表)保存有效期信息,运行时检查一下是否过期
也有作为软件伴随文件保存的
网站可以使用伴随文件保存,但验证程序应加密或扰码
对于你的举例,只需判断一下 $_SERVER['HTTP_HOST'] 是否为被绑定的域名即可
------解决方案--------------------
这就是你要做到的:删除掉任何一个基本文件,都将导致系统崩溃
------解决方案--------------------
将核心代码用RPC调用。
------解决方案--------------------
ECSHOP的管理员后台内置了很多后门,如果你懂PHP、JS的话可以很快的找出并且清楚。
ECSHOP并没有 Zend加密。

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