Shulou(Shulou.com)06/01 Report--

First, go to peanut shells or other dynamic domain names to apply for a free domain name.

1. Write the rules on the server first to prevent the SSH from being connected directly.

-An INPUT DROP

-An INPUT-p tcp-- dport 80-j ACCEPT

-An INPUT-p tcp-- dport 22-s finy.hhks.cc-j ACCEPT

2. Point the IP of the domain name to the IP where you are working.

3The cron task refreshes the IP of the domain name every five minutes.

#! / bin/bash

Iptable=/etc/init.d/iptables

Restart () {

$iptables restart

}

Restart

Vi / etc/cron

* / 5 * / usr/iptables_scripts/iptables.sh

4, whether the domain name can be resolved correctly

Ping finy.hhks.cc

Look at your actual IP consistent

In this way, apart from your domain name IP, which can access the SSH of your server, it is very useful to deal with profiteering.

Refresh the IP record of a dynamic domain name every 5 minutes.

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