Blocking domains and sub-domains

Suppose I want to block all access to www.abcd.com with comodo how do I do that ?
Does this work … Go to “My blocked network zones”, then add “A new blocked address” then enter “abcd.com” under “A host name”
Or do I enter www.abcd.com … Or would I be better off with an IP

Suppose I want to allow www.abcd.com, but I want to block http://subscribe.abcd.com
How do I do that ?

(I have already blocked access in my hosts file)

Thanks

This question went to page 2 of the forum with no reply. I wonder why.

I did a good search on this forum and placed the question on experts-exchange before posting here.

I’d appreciate it if someone could reply

Got a similar post here:

https://forums.comodo.com/firewall_help/how2_monitor_phone_home_from_browser-t38901.0.html

and am not getting any help either. Wonder why ???

One last try before I give up.

Can anyone help ?

you can do that, but use the ip address of the site you want to block. I like to use http://www.selfseo.com/find_ip_address_of_a_website.php , and it can work if the other page has a different address. Check it out. www.mail.yahoo.com has an ip of 206.190.60.37 but the main www.yahoo.com is 87.248.113.14 so if I block the first one I can block yahoo mail but not the search engine.

Many thanks languy