Ubuntu 更改 Nginx 版本

将 1.25 降为 1.18

1. 先卸载干净

# 1. 完全卸载当前Nginx
sudo apt purge nginx nginx-common nginx-core

# 2. 清理残留配置
sudo apt autoremove
sudo rm -rf /etc/apt/sources.list.d/nginx*.list

2. 修改仓库地址

# 添加仓库（通用稳定版仓库）
codename=$(lsb_release -cs)
echo "deb http://nginx.org/packages/ubuntu ${codename} nginx" | sudo tee /etc/apt/sources.list.d/nginx.list
echo "deb-src http://nginx.org/packages/ubuntu ${codename} nginx" | sudo tee -a /etc/apt/sources.list.d/nginx.list

3. 更新仓库并安装1.18

sudo apt update
sudo apt install nginx=1.18.0-1~${codename}

nginx -v
# nginx version: nginx/1.18.0