Detect whether the site is harmonious!

Determine whether the site is harmonious to be detected from two aspects,

First, the detection of website domain name of the resolution is normal;

Second, the website 80 port is intercepted;

Detection of website domain name resolution is normal can use Ping or Linux under the Dig command to see if the IP address of the domain name resolution is normal, to face Book (facebook.com) as an example, such as

On the left is dig facebook.com +trace two times to get the different results, the right is win7 under and Linux ping results, many ping several times will be like the left side of the same IP address.

Why does every dig/ping come out of the IP address is different? In fact, these IP addresses are randomly returned to your invalid address, and this return random IP address is generally the site of the domain name resolution address is harmonious performance.

If the above method can successfully detect the correct information of the domain name resolution, it can be excluded is the domain name resolution is the possibility of harmony, and then to detect whether the site 80 port is intercepted, here using the Telnet command detection, Baidu (baidu.com) as an example, such as:

Returns "Connected to baidu.com" instructions can be linked to baidu.com via port 80, if the link fails or other error message is returned, while the site 80 port is blocked.

The above is I detect whether the site is a harmonious method, if there is no place to welcome correct, there are other testing methods are welcome to put forward, share!