[Samba] Wondering if there is an option like banner

[Max León]

Hi everyone,
I have been googling quite a bit and going through the samba documentation
looking for something like a banner for a share and nothing came up.
I need to setup a public share on a server that is currently running with
server security, so I addedd the nobody account to the smbpasswd with null
password, but I want to set a banner on the share that let people know
this.  Is this possible?
Running samba 3.0.26a on slackware 12.0


Thanks so much.