Configuring Proxy for Linux Tools

Note: Replace <proxy_addr> and <proxy_port> with your proxy server address and port respectively.

System-Wide Proxy

To set up a system-wide proxy configuration:

1. Open ~/.profile in your preferred text editor:

   vi ~/.profile

2. Add the following lines at the end of the file:

   export http_proxy=http://proxy_server_address:proxy_port
   export https_proxy=https://proxy_server_address:proxy_port
   export no_proxy=localhost, ::1,127.0.0.1

3. Apply the changes:

   source ~/.profile

APT Package Manager

To configure the APT package manager:

1. Open /etc/apt/apt.conf with root privileges:

   sudo vi /etc/apt/apt.conf

2. Paste the following configuration:

   Acquire::http::Proxy "http://proxy_server_address:proxy_port";
   Acquire::https::Proxy "https://proxy_server_address:proxy_port";
   

3. Save the file and exit.

DNF Package Manager

To configure the DNF package manager:

1. Open /etc/dnf/dnf.conf with root privileges:

   sudo vi /etc/dnf/dnf.conf

2. Add or modify the following lines in the [main] section:

   proxy=http://<proxy_addr>:<proxy_port>
   

3. Save the file and exit.

Snap Package Manager

To set proxy settings for the Snap package manager:

sudo snap set system proxy.http="http://proxy_server_address:proxy_port"
sudo snap set system proxy.https="https://proxy_server_address:proxy_port"

Git

To configure Git with or without authentication for proxy:

Without authentication:

git config --global http.proxy http://proxy_server_address:proxy_port
git config --global https.proxy https://proxy_server_address:proxy_port

If your proxy requires authentication, you can include your username in the URL:

git config --global http.proxy http://username@proxy_server_address:proxy_port
git config --global https.proxy https://username@proxy_server_address:proxy_port

Verify the configuration: You can verify that the proxy settings are correctly configured by checking your Git configuration:

git config --global --get http.proxy
git config --global --get https.proxy

Unset proxy configuration: If you want to remove the proxy configuration, you can unset it using:

git config --global --unset http.proxy
git config --global --unset https.proxy

This will revert Git to using no proxy.

Docker

1. Create the directory:

   sudo mkdir -p /etc/systemd/system/docker.service.d

2. Create the file:

   sudo vi /etc/systemd/system/docker.service.d/http-proxy.conf

3. Paste the following configuration and save the file:

   [Service]
   Environment="HTTP_PROXY=http://proxy_server_address:proxy_port"
   Environment="HTTPS_PROXY=https://proxy_server_address:proxy_port"   
   

4. Restart daemon:

   systemctl daemon-reload

5. Restart docker service:

   service docker restart