When I am installing Magento under a subdomain of my production domain, I cannot login to magento admin. For example, my domain name is example.com where I have installed magento and it is in production, I am ok with admin login.
However, I have a subdomain called test.example.com and I installed magento there for testing purpose. Now, if I try to login to the test site, I can’t login. The username and passwords are correct. I see no error message. It just reloads the same login page. Same things happens when I try to login to my production site admin panel.
If I clear the cookies related to example.com and test.example.com and then try to login to the admin panel of example.com, I am fine. Now, when I try to login to test.example.com admin panel, the problem starts again.
Is there anybody who can help me solving this issue?
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Answer
Your live system’s cookie are set for .example.com, which means for your live system’s domain and also all subdomains. Because test.example.com is a subdomain, both cookies are valid for it.
Try the following settings, then Magento will set cookies for .www.example.com and .test.example.com and your live domain’s cookies will not interfere with your subdomain’s.
