If you're running Ubuntu 22.04 on a Laravel Forge-managed server, you may have recently started seeing this error during apt update:

Err:7 https://ppa.launchpadcontent.net/ondrej/nginx/ubuntu jammy InRelease
  403  Forbidden
E: The repository 'https://ppa.launchpadcontent.net/ondrej/nginx/ubuntu jammy InRelease' is no longer signed.

What's happening?

Forge historically added the ondrej/nginx PPA to its servers to get newer versions of nginx. Ondrej Surý (the maintainer) has since moved this PPA to a paid subscription model, so unauthenticated access now returns a 403. Your server still has the old PPA entry, but it can no longer reach it.

You'll notice the ondrej/php PPA still works fine — that one remains freely available.

The fix

Step 1: Find the file that references the broken PPA:

grep -r "ondrej/nginx" /etc/apt/sources.list.d/

Step 2: Remove it (the filename will match what grep returned above):

sudo rm /etc/apt/sources.list.d/ondrej-ubuntu-nginx-jammy.list
sudo rm -f /etc/apt/sources.list.d/ondrej-ubuntu-nginx-jammy.list.distUpgrade

Note: add-apt-repository --remove ppa:ondrej/nginx won't work here — Launchpad returns a 403 before it can resolve the PPA name.

Step 3: Run apt update again. If you need a newer version of nginx than Ubuntu's default (1.18.x), add the official nginx.org repository instead:

curl -fsSL https://nginx.org/keys/nginx_signing.key | sudo gpg --dearmor -o /usr/share/keyrings/nginx-archive-keyring.gpg

echo "deb [signed-by=/usr/share/keyrings/nginx-archive-keyring.gpg] http://nginx.org/packages/ubuntu jammy nginx" \
  | sudo tee /etc/apt/sources.list.d/nginx.list

sudo apt update
sudo apt install nginx

Do you need a newer nginx?

For most Laravel applications, Ubuntu's default nginx is perfectly adequate. Unless you have a specific reason to run a cutting-edge nginx version, removing the PPA and sticking with the default is the simplest and most stable path.