ACI is not able to login through Linux

[Kolanjiyappan Kaliyamoorthy]

APIC is not able to login through Linux(Redhat Enterprise Linux workstation release 7.6(Maipo)),Even I am trying through firefox and chrome but it is asking username and password,then it is not going inside ACI page.

Note: it is working via windows and Mac book.

[micgarc2]

Is this APIC-EM or no? Are you getting an error message?

Can you tail the nginx logs and let me know what you are seeing when the failed login occurs?

tail -f /var/log/dme/log/nginx.bin.log | grep <username>

[Kolanjiyappan Kaliyamoorthy]

Yes,this is APIC-EM 

When I am trying to login,there is no error.however when I click the login button After giving user name and password,the login page remains same(Login button grayed out)after 10 minutes I am getting timed out error.