如何防止 Trackback Spam

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现在无忧博客有不少用户可能都遭遇了 Spam 评论。

Tackback Spam 是如何产生的?

您可能会奇怪,评论留言不是需要验证码的吗?怎么还有这么多的垃圾留言?

其实,这些垃圾留言,不是采用普通的“登陆您的站点->查看文章->提交留言”这样的形式来提交的,而是采用 方式产生(有关 Trackback 的介绍,参见《什么是 Trackback?如何使用? 》)。这样的引用通告形式留言,验证码不能起作用。因此,有人利用这类的漏洞,使用相关工具在互联网上大量发布这类垃圾留言。

如何避免垃圾留言?

这类 Trackback Spam 和垃圾邮件一样,十分令人生厌。为此,无忧博客最近对 Trackback 功能进行了一些修正,更改了默认的 Wordpress Trackback 链接形式,希望能够起到一些防止作用。但这样的修正,并不能保证完全避免此类垃圾。如果在您的博客中,这类垃圾评论很多,您希望从根本上杜绝,可能还需要您做一些工作,或者牺牲一些功能。 杜绝 Trackback Spam 最简单的方法是:不允许 Pings。您在发表文章时,在右侧“讨论”选项中,取消选择“允许 Pings”。要更加彻底,您可以在管理后台“选项”菜单下的“讨论”选项中,取消选择“允许接受来自其它网站的通知(Pingback 和 Trackback)”,这样,您就不用每次在发布文章时处理是否允许 Pings 了,默认就是不允许。

这样不允许 Pings 的处理,难免会牺牲这个功能,但在垃圾评论很多的博客中,这也是不得已的办法。如果您的博客中此类垃圾评论并不是很多,只是偶尔出现,您也可以设置一些评论的选项:如“评论必须通过管理员审查(除非它符合您所设定的过滤列表)”。

更好的办法是使用插件“Simple Trackback Validation,它可以通过一些技术检查,来判断Trackback 是否是 Spam。

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    44 条评论

  1. 1. 李昶 - 2010年1月15日 09:55

    How to put “Simple Trackback Validation” into my directory, please?

  2. 2. maobei - 2012年2月18日 01:35

    请问:为什么我的评论不能发表?谢谢!

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