Telnet simulate http access

There are only a few common commands for HTTP.

GET

HEAD

PUT

POST

Let's briefly describe http GET and HEAD.

Here are two simple examples:

GET example

Telnet serverip 80

GET http://www.aaa.com/aaa.html // enter the get command and get url

HTTP/1.0 200 OK
Date: Thu, 24 Apr 2014 01:19:11 GMT
X-Powered-By: ASP. NET yltv
X-AspNet-Version: 2.0.50727
Content-Type: text/html; charset = gb2312
Content-Length: 28309
X-Cache: HIT from cache121.aaa.com
Connection: close

<H1> john_test page !!! </H1>

The connection to the host is lost.

The header example shows that the HTTP header information of the response can replace the-I parameter of the CURL command in win.

Telnet serverip 80

GET http://www.aaa.com/aaa.html // enter the get command and get url

HTTP/1.0 200 OK
Date: Thu, 24 Apr 2014 01:19:11 GMT
X-Powered-By: ASP. NET yltv
X-AspNet-Version: 2.0.50727
Content-Type: text/html; charset = gb2312
Content-Length: 28309
X-Cache: HIT from cache121.aaa.com
Connection: close

The connection to the host is lost.

Just like squid has a clear Cache http command, PUGRE

If you clear the cache of a page, telnet to port 80 of the squid server.

Then run PUGRE http: // host/url to cache pugre.

But the premise is that the squid acl allows!

The original HTTP protocol is so simple !!!