Thanks Phoenix, I updated my info profile about ZCS version. I installed it in Ubuntu 8.04 32 bits.
I have a ZCS 6.x version and it's a new installation and I want to acces from another pc.
As you say I read in release notes about Anonymous LDAP and it says that:
For new installations of ZCS 6.0, anonymous searches of the directory are
disabled. (Bug 15378) When you upgrade to 6.0, anonymous searches of the
directory are enabled, matching previous release behavior.
To disable anonymous search after upgrading, on each LDAP server, as
zimbra run /opt/zimbra/libexec/zmldapanon -d
To enable anonymous access at any point after it is disabled, on each LDAP
server run /opt/zimbra/libexec/zmldapanon -e
Important: Enabling anonymous binds is not recommended as it may expose
data not intended for anonymous access
and nothing happens :-(