ldap_bind: can't contat ldap server

["hasan" <hasan@dpi2.dpi.net.ir>]

hi all,

i installed ldap server 2.2.15 on suse 7.2 successfully. then i start it
without any error. but when i run "ldapsearch -x" i get error "ldap_bind:
can't contat ldap server". when i run "ldapsearch -x -d -9" i found that
ldap couldn't contact to localhost:389. besides i couldn't telnet to 389
port.

PS: when i installed the ldap i passed the ldap tests successfully. and when
i run "slapd -d -9" there weren't any errors. i haven't any firewall on my
system.

any help would be appreciated,
--Maryam