multiple web application host under the same website on IIS

第一种方式，修改forms的name

how to set the forms authentication cookie path

assume you have already solved this issue somehow, but since I stumbled upon this question I thought I should add my few cents.

To solve the issue use different cookie names in web.config. Something like:

<authentication mode="Forms">
<forms name=".ASPXFORMSAUTH_FOO"
loginUrl="public/login.aspx" cookieless="UseCookies" slidingExpiration="true"/>
</authentication>

and

<authentication mode="Forms">
<forms name=".ASPXFORMSAUTH_BAR"
loginUrl="public/login.aspx" cookieless="UseCookies" slidingExpiration="true"/>
</authentication>

第二种方式，修改forms的path，并且加上domain(必须添加) (forms的name是保持一致的)

需要注意的是，监视cookie的时候，每一个页面的cookie是独立的，需要分别用F12查看。

The name of forms keep the same, they have different path,(although the domains are the same but must set it)
<authentication mode="Forms">
<forms loginUrl="CMSPages/LISA_logon.aspx" defaultUrl="Default.aspx" name=".ASPXFORMSAUTH" timeout="1440" slidingExpiration="true" domain="localhost" path="/LISA_50_Dev_CMSWeb" />
</authentication>



<authentication mode="Forms">
<forms loginUrl="CMSPages/logon.aspx" defaultUrl="Default.aspx" name=".ASPXFORMSAUTH" timeout="1440" slidingExpiration="true" domain="localhost" path="/LISA_60_Dev_CMSWeb"/>
</authentication>



第二个方法的问题，在于限定了domain name，如果限定为localhost的话，那么会导致使用域名无法登录的问题 。因为后台不识别了。