How do i stop unwanted people gaining ops or halfops in my channel

Answer 1

The easiest way is to set Secure on your channel, as this will only allow identified people who have flag access in your room to be op'd or halfop'd, this must be done  via chanserv by typing:

/msg chanserv set #channel Secure ON

however, be advised secure will NOT stop the following commands:

/msg chanserv voice #channel nickname

/mode #channel +v nickname