Start of gnome2 and iptables settings (the third time detected by andebian this year)

Start of gnome2 and iptables settings (found in the third time of the year in the Security Section)-Linux Release Technology-Debian information. The following is a detailed description. It was accidentally discovered that I did not expect to access the lo interface when gnome2 was started. If it was not allowed to be accessed, gnome2 would not load the desktop, and I was confused at the beginning, it turns out that when DEBIAN3.1 was used, it seems that my IPTABLES settings are EASY, as shown below:

Iptables-P INPUT DROP
Iptables-a input-m state -- state ESTABLISHED-j ACCEPT
Iptables-a input-m state -- state RELATED-j ACCEPT

This is what it looks like. At first, I had a problem installing the machine on C900, that is, gnome2 could not be shut down or injected, and it would not work as long as it was used, I thought it was gnome2. There was a BUG! It wasn't originally related to this lo interface! Of course the problem is final. Just Add the following sentence to iptables:

Iptables-a input-I lo-j ACCEPT

Now we can load and shut down gnome2 on both machines.