View the complete version: [-- Port details and how to enable and disable ports --]
I went to trustnet-platinum Network Management-Internet-Software Development-> Windows-> port explanation and how to enable port
Failure: Website cannot access analysis: Netstat-an See a large number of 80 port process zombie, restart Tomcat.tomcat failed to start, the webpage still cannot open. Stop Tomcat process shutdown.sh, stop Tomcat after Telnet 127.0.0.1 80, found
ping command and network port:1.Ping 127.0.0.1127.0.0.1 is the local circular address, ping General instructions that the TCP/IP protocol works properly, otherwise TCP/IP is not normal.2.Ping IP address for this computerUse the ipconfig command to
The port can be divided into 3 main categories:
1) Accepted ports (well known Ports): from 0 to 1023, they are tightly bound to some services. Usually the communication of these ports clearly indicates the protocol of some kind of service. For
PHP simulates sending post requests using Telnet and fsockopen () to send post messages, Telnetfsockopen
Knowing the specifics of the HTTP header and URL information, we started to try to write a header message to the server. Windows built-in
Summary
I wanted to write a tutorial on port for a long time, and I finally put it into practice today. In fact, there are many tutorials on port introduction on the Internet, but I haven't seen any articles that really tell you what port is (maybe
Here is just a description of how telnet (similar tools such as NC) can be detected.
Windows:
Start -- run -- cmd
(The preceding steps can be omitted in Linux)
Telnet in the command line, and then
...> Telnet wz.mygou.com 80
Open TCP connection port
The Telnet protocol isUse one:Test port numberExample: Test if the 80 port on this machine is open1. Get the native IPDOS command: ipconfigCan see the IP address of the machine is 192.168.0.102, of course, this is also LAN IP, not public IP, but
1. Use Telnet to test HTTP protocol in command line windowHTTP messages are made up of plain ASCII text. The message includes the message header and the data body part. Message headers in units of behavior, each line with CRLF (carriage return and
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