hadi motamedi <motamedi24 <at> gmail.com> writes: > - Add the following line to /etc/sysconfig/iptables > -A RH-Firewall-1-INPUT -p udp -m udp --dport 53 -j ACCEPT > Then issue: > #service iptables restart > I tried for it and now the windows machine can browse valid url . I > must mention that the problem could not be solved without your comment > on the possibility of blocking port 53. Are you aware to the differences between Debian and Red Hat?