how to fix this error Ign:1 jammy-security InRelease


The error messages you are seeing suggest that your Ubuntu system is having trouble connecting to the Ubuntu package repositories. The message “Temporary failure resolving ‘'” indicates that your system is unable to resolve the domain name ‘’ to an IP address.

Here are a few steps you can take to troubleshoot and potentially resolve this issue:

  • Step 1 – Check your internet connection: Make sure that your system has a working internet connection. You can do this by pinging a well-known site. For example, you can use the following command in your terminal:r
ping -c 4

If you receive a response, that means your internet connection is working.

  • Step 2 – Check your DNS settings: The error message suggests a DNS resolution issue. You can try to use a different DNS server. Google’s DNS server is a commonly used option. To use Google’s DNS server, open your /etc/resolv.conf file with a text editor like nano:
sudo nano /etc/resolv.conf

Then, add the following lines to the file:


Save and close the file, then try updating your system again with sudo apt update.

  • Step 3 – Check your system’s date and time: An incorrect system date and time can sometimes cause issues with SSL certificates, which can prevent your system from connecting to the repositories. Make sure your system’s date and time are set correctly.
  • Step 4 – Check if the repositories are up: It’s also possible that the repositories themselves are temporarily down. You can check their status on the Ubuntu website or by trying to visit ‘‘ in a web browser.

Remember to execute sudo apt update after each step to check if the issue has been resolved.

Leave an answer