it seems not sharing the session in subdomain , i need a second login for each template genereted site .
the user ara shared in template config.
host: hostgator
joomla : 1.5.14
jms: 1.2 rc5

any idea where to start?

...thank's in advance!

First of all, update your JMS because several bugs fix several things including the single sign-in.
See procedure in the FAQ to get the latest version.
www.jms2win.com/faq#sec-122

When you go a website that you think it should share the login, then go in the Joomla / Help / System info / PHP Info and check if you have a value in your "session.cookie_domain".
It should contain the "common" domain name with a leading '.' dot.

If you have "no value", this probably mean that you don't have any "common" domain name.

I remember that Single Sign-In only works when using slaves on the same domain.

Example OK:
slave1.domain.com
slave2.domain.com
www.domain.com/slave3
=> session.cookie_domain = ".domain.com"

Example NOT OK (different domain name).
www.slave1.com
www.slave2.com
=> session.cookie_domain = "no value"


If you have a value and it does not works, you also have to check if the apache "suhosin" module is present.
In this case, this extension forbids to share the session between subdomains.

thank's for the fast replly
there in no vale in :

session.cookie_domain no value no value

how can i set it properly ?

As I have told you, start to update with JMS 1.2.19 (latest version).
You mentioned that you are still using a Release Candidate RC5

jms updated

try to set the php .ini?

work!
after setting
session.cookie_domain= .mydomain.com
...but ..if i do logout ...only the site where ido it logout..the other still logged .
maybe it is is normal ?
Edwin , realy thank's