Ubuntu 安装最新稳定版 Nginx

来源：https://nginx.org/en/linux_packages.html#Ubuntu

1、安装前置

sudo apt install curl gnupg2 ca-certificates lsb-release ubuntu-keyring -y

2、导入官方 nginx 签名密钥，以便 apt 可以验证包的真实性。获取密钥：

curl https://nginx.org/keys/nginx_signing.key | gpg --dearmor \
    | sudo tee /usr/share/keyrings/nginx-archive-keyring.gpg >/dev/null

3、验证下载的文件是否包含正确的密钥：

gpg --dry-run --quiet --no-keyring --import --import-options import-show /usr/share/keyrings/nginx-archive-keyring.gpg

输出应包含完整的指纹：
573BFD6B3D8FBC641079A6ABABF5BD827BD9BF62 ，类似下面：

pub   rsa2048 2011-08-19 [SC] [expires: 2027-05-24]
      573BFD6B3D8FBC641079A6ABABF5BD827BD9BF62
uid                      nginx signing key <signing-key@nginx.com>

4、设置稳定版 nginx 源：

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

如果要用主线版本：

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

5、设置源固定，以优先使用官方软件包而不是发行版（比如：Ubuntu 22.04 自带）软件包：

echo -e "Package: *\nPin: origin nginx.org\nPin: release o=nginx\nPin-Priority: 900\n" \
    | sudo tee /etc/apt/preferences.d/99nginx

6、安装 nginx：

sudo apt update
sudo apt install nginx