If you get the following message in /var/log/messages or /var/log/syslog
Global parameter guest account found in service section!
This means that a global variable has been put in a share section of the smb.conf to fix this remove the global variable in this case it is ‘guest account’ from the share.
If you require this variable put it in the [global] section of smb.conf and not the individual share
remove this line from [share] and make sure it is in [global]:
guest account = nobody
now restart samba