Want to send list of hosts to IPTables?

[SlowCoder]

I know the below question sounds like it might belong in another area, but please stick with me here ...

What command might I use to make IPTables parse a list of hostnames and add them to the firewall? I want to be able to take a list of hosts in a file called "blocklist" and use one command to add all of them to IPTables.

Say the file looks like this:
-------- Start of file ----
www.yahoo.com
www.hotmail.com
-------- End of file ----

I tried a command like the following:
iptables -A FORWARD -j DROP -d `more blocklist` (note the backwards apostraphes)
or:
blocklist > iptables -A FORWARD -j DROP -d

Any help?

[Dolda2000]

Try this instead:

&#40;while &#58;; do read host; if &#91; -z "$host" &#93;; then break; fi; iptables -A FORWARD -j DROP -d "$host"; done&#41; <blocklist

Provided there's no whitespace in the blocklist, these two work as well:

for host in `cat blocklist`; do iptables -A FORWARD -j DROP -d "$host"; done

xargs -i iptables -A FORWARD -j DROP -d &#123;&#125; <blocklist

[SlowCoder]

Thanks for the info. I'll give it a shot.