Hello,
Firstly someone will surely complain that the contents of your config file are not in the [ c o d e] [ / c o d e] tags.
I am pretty sure (but could be wrong) that the deny unknown-clients statement needs to be inside of a pool declaration.
After making the changes, did you restart the DHCPD service? If not I recommend running this command first :
Code:
dhcpd -t -cf /path/to/configFile/dhcpd.conf
This will test your current dhcpd.conf file for errors.
Other things I've noticed:
Did you accidentally delete the semicolon after deny unknown hosts when editing the config file to make it stand out? Or is it actually missing?
Also it looks like you might be missing a close curly brace, ending your subnet declaration, but again it might be due to your editing that it's missing.