On Wed, 16 Nov 2005 20:22:24 +0100 (CET)
"Barbara M." <[EMAIL PROTECTED]> wrote:

> > 4. Put iptables.
> 
> For what I know, the box have only port 80, 443, 21 forwarded from the 
> firewall ...
> Still useful iptables?
If your apache don't need access to other webservers/IPs/whatever, you can
try this:

iptables -N httpdout
iptables -A httpdout -o lo -j ACCEPT
iptables -A httpdout -m state --state ESTABLISHED -j ACCEPT
iptables -A httpdout -p udp --dport 53 -j ACCEPT
iptables -A httpdout -p tcp -j REJECT --reject-with tcp-reset
iptables -A httpdout -p udp -j REJECT
iptables -A httpdout -j DROP

iptables -A OUTPUT -m owner --uid-owner httpd -j httpdout

This would prevent apache to access any other service than dns.
With modifications also good for securing every other daemon that runs
non-root

cheers
Olaf
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