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Asked: 2024-09-25T17:54:16+05:30 In:

How can I execute the command sudo apt-get update while connected to a proxy in the command line on Ubuntu?

So, I’ve been hitting a bit of a wall while trying to update my Ubuntu system. I know it’s pretty basic stuff, but I need some help with getting this proxy thing sorted out. I’m usually the go-to tech person for my friends and family, so it feels a little embarrassing to be stuck on something simple. Here’s the situation: my internet connection goes through a proxy server, and I’m trying to execute the command `sudo apt-get update` to refresh my package list.

I’ve tried to just run the command, but it doesn’t seem to be working because it can’t connect to the online repositories – it just hangs or throws some errors. After a bit of digging, I found out that I probably need to configure the proxy settings properly first, but I’m not entirely sure how to do that through the command line. I’ve seen some vague guides online, but most of them seem to gloss over the details or assume you’ve already got some kind of setup that I don’t have.

I’m using a terminal, and I have no clue where to even start with proxy settings. Should I set environmental variables? Like, do I need to update my `apt.conf` file? I’ve heard people mention adding `Acquire::http::Proxy` and `Acquire::https::Proxy` in configuration files, but honestly, I could use a step-by-step or at least some pointers on making this work.

Also, are there any specific commands I should run after configuring the proxy to ensure it’s set up properly? I want to make sure that when I finally do `sudo apt-get update`, everything runs smoothly and I don’t get another error message staring me in the face. Any tips, tricks, or experiences you all want to share? It’d really make my day to finally get this sorted out without pulling my hair out! Thanks in advance for any help!

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    2 Answers



    1. Ubuntu Proxy Setup Help

      How to Set Up Proxy for Ubuntu APT

      It sounds like you’re having a rough time with the proxy settings! Don’t worry, you’re not alone in this. Setting up a proxy on Ubuntu for `apt-get` can be a bit tricky at first, but I’ll break it down for you step-by-step.

      1. Set Up Environment Variables

      First off, you can set your environment variables directly in the terminal. Open up your terminal and add these lines:

      export http_proxy="http://username:password@proxyserver:port/"
export https_proxy="http://username:password@proxyserver:port/"
export ftp_proxy="http://username:password@proxyserver:port/"

      Replace username, password, proxyserver, and port with your actual proxy information. If your proxy doesn’t require a username/password, you can skip that part.

      2. Update the apt.conf File

      You can also update the APT configuration directly. You’ll need to create or edit the apt.conf file. Run this command:

      sudo nano /etc/apt/apt.conf

      In that file, add these lines:

      Acquire::http::Proxy "http://username:password@proxyserver:port/";
Acquire::https::Proxy "http://username:password@proxyserver:port/";

      Again, remember to replace the placeholder values. Save and exit the nano editor by pressing CTRL + X, followed by Y, and hit Enter.

      3. Test Your Proxy Settings

      After you’ve set that up, you can test if the proxy is working by running:

      apt-get update

      If everything’s set correctly, your packages should start updating without throwing any errors! If it still hangs or gives an error, double-check that the proxy information is correct.

      4. Optional: Set Proxy for Other Commands

      Sometimes, you might want to use other commands with the proxy too. You’d set it up the same way as shown in the environment variables step.

      5. Keep it Simple!

      If you find you’re using the proxy all the time, consider adding those export lines to your .bashrc file:

      nano ~/.bashrc

      And add those export lines at the bottom. Save and exit. To apply the changes, run:

      source ~/.bashrc

      Final Tips

      When everything is set, just remember:

      • Double-check your proxy settings.
      • Make sure your internet connection is working.
      • Try running sudo apt-get update after configuring everything.

      Good luck, and don’t worry – you’ll have this sorted out in no time!


    2. To configure proxy settings for your Ubuntu system, you can follow a few straightforward steps. First, you can set the required environment variables by executing the following commands in the terminal. Replace `http://proxy-server:port` with your actual proxy address:

      export http_proxy="http://proxy-server:port"
export https_proxy="http://proxy-server:port"
export ftp_proxy="http://proxy-server:port"
export no_proxy="localhost,127.0.0.1,::1"

      After setting the environment variables, you should also edit the `apt.conf` file to ensure that the package manager uses the proxy settings. Open the file with your preferred text editor (e.g., nano) using the command:

      sudo nano /etc/apt/apt.conf

      Then, add the following lines to the file, substituting with your proxy details:

      Acquire::http::Proxy "http://proxy-server:port/";
Acquire::https::Proxy "http://proxy-server:port/";

      Save the file and exit the editor (in nano, you can do this by pressing Ctrl + X, then Y, followed by Enter). To ensure your proxy settings are working, you can run `sudo apt-get update` to check if the connection goes through successfully. If all goes well, you should see the package list updating without errors. If it still hangs or throws errors after this, double-check the URL and port for typos, and ensure your network connection is active.

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