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Asked: 2024-09-25T23:37:09+05:30 In:

How can I find out where the settings for HTTP proxy configuration are saved when I export the proxy variables in Ubuntu?

I’ve been wrestling with my Ubuntu setup lately and could really use some help from the community. So, I recently started using a proxy for all my internet traffic, and I’m trying to get everything configured just right. The thing is, I want to export the proxy variables to make sure they stick around after reboots or if I start new terminal sessions.

Here’s where I’m getting stuck: once I export the proxy variables, I have no clue where Ubuntu saves these settings. I mean, do they just hang out in the environment somewhere, or is there a config file I can check out? I did some digging and found various articles that discuss proxy configurations, but nothing has really given me the straightforward info I need.

I’ve tried looking into typical files like `/etc/environment`, `~/.bashrc`, and `~/.profile`, but honestly, it feels overwhelming. I don’t want to mess anything up, but I also want to ensure that my proxy settings are applied correctly without having to reconfigure everything every time I boot up!

Another thing—if I ever need to change or remove the proxy settings, how exactly would I go about doing that? Would it involve just editing the same files I mentioned, or is there a simpler way?

Also, I’d love to know if there are any command-line tools or commands that can help me view the currently set proxy variables. I’ve seen some commands like `env` and `printenv`, but again, I’m not fully clear on how these relate to my proxy settings.

If anyone has gone through the same process or has insights on the best practices for managing these HTTP proxy configurations on Ubuntu, I’m all ears! I really want to make this setup as smooth as possible and not get bogged down by potential headaches later on. Any tips, tricks, or even resources you’ve found helpful would be greatly appreciated!

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    2 Answers



    1. Ubuntu Proxy Setup Help

      Proxy Setup on Ubuntu

      Sounds like you’re diving into some networking fun! Setting up proxy variables on Ubuntu can definitely seem overwhelming at first, but once you get the hang of it, you’ll be rolling smoothly.

      Where to Set Your Proxy Variables

      After you export your proxy variables in the terminal (like with export http_proxy="http://your.proxy:port"), they only last for that session. To make them stick around, you can add those export commands to certain config files. Here’s a quick rundown:

      • /etc/environment: This file is a good place to set system-wide environment variables. Just add lines like http_proxy="http://your.proxy:port" and it’ll apply to all users.
      • ~/.bashrc or ~/.profile: If you want these variables just for your user, you can place the export commands here. Remember to restart the terminal or run source ~/.bashrc afterwards.

      Changing or Removing Proxy Settings

      If you ever need to change or remove the proxy, just go back into the same files. For example, you can simply edit ~/.bashrc to change the values, or delete the lines entirely to clear it. Again, don’t forget to run source on the file or restart your session!

      Viewing Current Proxy Variables

      To check what proxy variables are currently set, tools like env or printenv are perfect. Just type:

      env | grep -i proxy

      This will filter the output for anything that has “proxy” in it, showing you your current settings!

      Best Practices Tips

      Here are a few quick tips:

      • Document what you change. It’ll save you headaches later!
      • After making changes, test your internet connection to confirm things are working as expected.
      • Make sure to backup any files you edit, just in case you need to revert your changes.

      With this info, you should be able to tackle the proxy setup without too much stress. Feel free to ask if you run into more questions or need clarification on anything. Good luck!


    2. To ensure that your proxy settings persist across reboots and new terminal sessions in Ubuntu, you can define these settings in your user’s shell configuration files. The most common files to use are `~/.bashrc` and `~/.profile`. To set the proxy variables, you’ll want to add lines like the following to `~/.bashrc`: export http_proxy="http://your.proxy:port", export https_proxy="http://your.proxy:port", and export ftp_proxy="http://your.proxy:port". After adding these lines, you can either restart your terminal or run source ~/.bashrc to apply the changes immediately. As for the changes being persisted, the `~/.bashrc` file is executed on the startup of a new shell while `~/.profile` is run when you log in, which makes either suitable for exporting these variables.

      If you ever need to change or remove the proxy settings, simply navigate to the same files mentioned and modify or delete the lines you added for the proxy configuration. Afterward, remember to reload the configuration with source ~/.bashrc or the appropriate file. To view the currently set proxy variables, you can use commands such as env | grep -i proxy or printenv | grep -i proxy, which will display only the proxy-related environment variables. If you find yourself working frequently with environment variables, consider exploring tools like set or printenv to enhance your understanding and management of your environment settings.

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