[Fiddler actual operation] how to use Fiddler to capture packets on Apple Mobile Phones

One 、 Condition summary

Use Fiddler Two prerequisites for mobile packet capturing ：

1、 Mobile phone connected network or WiFi It has to be connected to the computer （ Use fiddler） Connected network or WiFi It's the same
2、 The mobile phone cannot be too far away from the computer , Be sure to keep your mobile phone online （ Don't break the net ）**

Two 、 install Fildder

1、 download Fiddler

• Download address ：
  https://www.soft-down.net/detail/437676/4376751001.shtml?type=jingzhun

• The download is Fiddler Installation package , After direct decompression, you can use , As shown in the figure ：
  

2、 function Fiddler

• Click on Fildder Run the program , open Fildder panel , As shown in the figure ：
  

3、 ... and 、 To configure Fiddler

1、 configure port

• 1、 Click on the Tools -> Options （Tools > Fiddler Options）, open ** Options （Fiddler Options）** Dialog box , As shown in the figure ：
  

• 2、 stay ** Options （Fiddler Options）** The dialog box switches to ** Connect （Connections）** tab , Then check it out. ** Allow remote computers to connect to （Allow romote computers to connect）** Check boxes at the back , Last , Click on ** determine （OK）** Button .
  

2、 Configure mobile agent network

• 1、 Check the computer IP Address , open cmd Command line , And enter the ：ipconfig, Find this machine IPv4 Address .
  
• 2、 open IOS The equipment Set up -> WLAN , Find the network you want to connect to , Click the symbol on the right , As shown in the figure ：
  
• 3, Open the network settings dialog , Drop down to the end , Find the configuration agent , Click a little > Symbol , Pop up network agent configuration , Configure as follows , And click the Storage , As shown in the figure ：
  
• 4、 start-up IOS Browser or application in the device , stay fiddler The completed request and response data can be seen in the program , As shown in the figure ：
  
  Be careful ：
  In the above completed request , You can see that there are many Tunnel to xxx 443 problem , This is because there are many requests in the web page HTTPS , Therefore, you need to install Fiddler Generated certificate , And trust the certificate on the mobile phone .

Four 、 Mobile installation certificate

because Fiddler Only grab by default HTTP request , Therefore, it is necessary to configure Fiddler, Allow his supervisor to hear HTTPS request .

1、 To configure Fiddler

• 1、 Click on Fiddler A menu item Tools -> Options -> HTTPS（Tools -> TelerikFiddler Options -> HTTPS）, open HTTPS Configuration panel , As shown in the figure ：
  
• 2、 Check Capture HTTPS Connect （CaptureHTTPS CONNECTs）, Check Decrypt HTTPS signal communication （Decrypt HTTPS traffic） and Ignore server certificate errors （Ignore servercertificate errors） two , Click on action -> Trust root certificate （Actions -> Trust Root Certificate）, Generate Fiddler certificate , Click on Export the root certificate to the desktop （Export Root Certificate to Desktop）, The certificate will be generated on the desktop , be known as FiddlerRoot.cer. Last , Click on determine （OK） preservation , As shown in the figure ：
  
  Be careful ：

  The first click will pop up whether to trust Fiddler Certificates and security tips , Just click yes （yes） Just go .

2、 Configure mobile phone installation Fiddler certificate

• 1、 Make sure your phone and computer are connected to the same network , Open the mobile browser , Input http://192.168.1.8:8888（http://IP: Port number ）, Here IP It refers to the computer IP Address , Port number Refer to Fiddler The port number set in the connection (8888), Click on the search , As shown in the figure ：
  
• 2、 Click on FiddlerRoot certificate , Download it to your phone , Open mobile phone Set up -> Universal -> VPN And equipment management , find Downloaded description file （FiddlerRoot certificate ）, As shown in the figure ：
  
• 3、 Click on DO_NOT_TRUST_FiddlerRoot``, Click on the install , After the installation , Click on the complete , As shown in the figure ：
  
• 4, because iOS The mobile phone provides system level settings , So confirm that the certificate is installed 、 After the proxy setting is ok , You need to set the trust of the installed certificate . namely , Click on Set up -> Universal -> About the machine -> Certificate trust settings , Turn on Fiddler Certificate trust , As shown in the figure ：
  
  Be careful ：

  Don't use Fildder When you grab a bag , It is recommended to turn off the mobile network agent , In case of other network problems .

• 5、 here ,Fiddler You can grab HTTPS Request the .