Configuring a Network Proxy

If you cannot directly access the Internet, configure a network proxy temporarily or permanently. A permanent network proxy may cause password leakage because all users in the environment can obtain the password. Therefore, you are advised to configure a temporary network proxy. You can also select the proxy mode that better suits your requirements.

Method 1: Configuring a Temporary Network Proxy

Configure environment variables.
Set the user name, password, proxy IP address, and proxy port based on your requirements.
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export http_proxy="http://Username:Password@Proxy_IP_address:Proxy_port" export https_proxy=$http_proxy
Confirm that the Internet connection is normal.
Run the curl command to access any website. If the website information is displayed, the proxy is successfully configured and the Internet is connected.

Method 2: Configuring a Permanent Network Proxy

Modify the profile file.
1. Open /etc/profile.
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  vi /etc/profile
2. Press i to enter the insert mode and add the following content to the /etc/profile file.
  Set the user name, password, proxy IP address, and proxy port based on your requirements.
```
export http_proxy="http://Username:Password@Proxy_IP_address:Proxy_port"
export https_proxy=$http_proxy
export no_proxy=127.0.0.1,localhost,local,.local
```
3. Press Esc, type :wq!, and press Enter to save the file and exit.
4. Make the proxy take effect.
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  source /etc/profile
Confirm that the Internet connection is normal.
Run the curl command to access any website. If the website information is displayed, the proxy is successfully configured and the Internet is connected.

Parent topic: Configuring the Compilation Environment