> Used to deny a certain command to a list of users. This can be used to 
> deny a guest user to enter new messages or modify a message. 
> 
> 
> Hosts allow = <list> 
> Hosts deny = <list> 
> 
> could you deny guest user like this 
> 
> guest is not loggeg ?
> hubert is logged
> 
> Hosts deny = guest,hubert
> does anybody has experience with deny based on IP adresse ?

You probably mixed up deny of a command to a certain user and deny of hosts 
based on their IP. This has nothing to do with each other except the 
word "deny". Please read the documentation about how to set up IP 
based "hosts deny". This works only for certain IPs, but not for certain 
users. 

If you want guests not to be able to enter messages, but allow this to 
registered users, you should set up a password file, and a guest menu. 
Please refer to the elogd.cfg file for this forum which is done in this way. 
Have a look at elog:Config%20Examples/4 .