disable loggin

[redhat]

i want do disable te log file this is what i'v done
In dhcpd.conf:
 log-facility local1;
In syslog.conf:
 local1.*    /dev/null

but there are stil log entrys in messages  if i cange .dev.null  in a 
file dhcp.log  logging
entrys  are made in messages and  dhcp.conf

i'm running fedora core my logfile is filed with dhcp requests every 3 
seconds
i need to disable loggin.
help please.

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