[Nginx] Detailed tutorial on completely uninstalling Nginx and installing Nginx

Today, Shang Silicon Valley released a new version of the Nginx tutorial. I felt that the previous tutorial was a bit shallow, so I decided to read it again, and then uninstall the previous Nginx before starting to read it. Install the version of Nginx corresponding to the tutorial, so that there may be fewer errors when watching the tutorial.

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1. Uninstall Nginx

1. Check if the nginx service is running

2. Stop Nginx

2. Uninstall Nginx

1) Execute the command rm -rf * to delete the related files installed by nignx (this command depends on your nginx location)

2) If Nginx is set to start automatically at boot, the following two steps may be required

3) You can use the yum command to clean up

2. Install Nginx

1. Download and unzip Nginx

 2. Install the corresponding dependencies

1) Install gcc

 2) Install the perl library

3) Install the zlib library

3. Check whether Nginx is installed successfully

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1. Uninstall Nginx

1. Check if the nginx service is running

ps -ef | grep nginx

2. Stop Nginx

/usr/local/nginx/sbin/nginx -s stop

If you forget where your Nginx is installed you can find it with the command below.

find  /  -name nginx 

2. Uninstall Nginx

1) Execute the command rm -rf * to delete the related files installed by nignx (this command depends on your nginx location)

2) If Nginx is set to start automatically at boot, the following two steps may be required

chkconfig nginx off

rm -rf /etc/init.d/nginx

3) You can use the yum command to clean up

 

 At this point, your nginx has been uninstalled cleanly.

2. Install Nginx

1. Download and unzip Nginx

Since I followed the tutorial, I directly transferred the installation provided by Shang Silicon Valley to my Centos.

 Directly enter the tar zxvf nginx-1.21.6.tar.gz command to decompress

 2. Install the corresponding dependencies

1) Install gcc

yum install -y gcc

 

 2) Install the perl library

yum install -y pcre pcre-devel

3) Install the zlib library

yum install -y zlib zlib-devel

 Then execute the following command:

make

make install

Because I have installed and make, the interface is not the same as yours.

4) Compile and install Nginx

./configure --prefix=/usr/local/nginx 
make 
make install

 This is the page where make install is done

3. Check whether Nginx is installed successfully

1. Find your command to install nginx and enter the following command

 ./nginx

Then enter the ip addr command to get the ip of your virtual machine

2. Enter your ip address in the browser

 See Welcome to nginx! It means your nginx installation is successful.

If it doesn't start, you have to turn off the firewall:

systemctl stop firewalld.service

Turn off the firewall once and for all:

systemctl disable firewalld.service