Need help on setting multiple gmail imap account

[Eric]

Hi,
I am using emacs 24.4. Following this instruction:
http://superuser.com/questions/86798/multiple-email-accounts-from-the-same-server-in-emacs-gnus
The same solution is posted here
https://lists.gnu.org/archive/html/info-gnus-english/2008-04/msg00088.html
But all looks to be outdated.
My trial setup is like this:

(add-to-list 'gnus-secondary-select-methods
             '(nnimap "name1"
                      (nnimap-address "imap.gmail.com")
                      (nnimap-server-port 993)
                      (nnimap-stream ssl)
                      (nnir-search-engine imap)
                      (nnmail-expiry-target "nnimap+gmail:[Gmail]/Trash")
                      (nnmail-expiry-wait 90))
             '(nnimap "name2"
                     (nnimap-address "imap.gmail.com")
                     (nnimap-server-port 993)
                     (nnimap-stream ssl)))

the authinfo file has:
machine name1 login email1 <at> gmail.com password mypass1 port 993 force yes
machine name2 login email2 <at> gmail.com password mypass2 port 993 force yes

but it doesn't work for me. There are several other solutions like this
online. Looks like gnus is trying to connect to name1 and name2 which is not
a real server name. It might be possible by editing the etc/host file.

Does anyone has a working setup with the server aliasing approach?
Thanks a lot.
Eric