Soliciting articles and contributions - building a blog environment with a lightweight application server

This article is from the light weight application server essay solicitation activity user contribution , The author has obtained （ Nickname: huangjiachen ） Authorized release .

Lightweight application servers , It's a lightweight cloud server that can be built quickly and managed easily ; Provide application deployment based on a single server , security management , Operation and maintenance monitoring and other services , One stop upgrade your server experience and efficiency .

I bought this lightweight application server to build a blog environment , Record your learning experience and share your skills . At present, operation is not considered , I chose the low configuration one , The configuration can be selected according to the actual needs of individuals . For servers , My main concern is “ Quick build ” And “ Easier to manage ”, These two characteristics of the product have been confirmed through our own practice .  

One 、 Buy servers

Because I've used it before Linux operating system , So when you buy a server , I chose the operating system CentOS; If you're not used to it , You can also reset the system later , It is very convenient at this point . The options in the figure below will not be introduced too much , Choose according to your own needs , Next, confirm the server configuration , Just confirm the payment finally . After the purchase , Enter the console to view the relevant information of your server .

Two 、 Configure server

The newly purchased server needs to set the user password , By default, the user name is root, The password needs to be set manually , After that, I passed SSH You need to enter this password when connecting to the server remotely （Linux In the system , The password is hidden when you enter it ）.

At present, the server environment required by the project is mainly MySQL、Node And Nginx. The following is the detailed steps and command code display .

1、 install Node

Download the file ：

[[email protected] ~]$ mkdir -p /usr/local/nodejs
[[email protected] nodejs]$ cd /usr/local/nodejs/
[[email protected] nodejs]$ wget https://npm.taobao.org/mirrors/node/v12.12.0/node-v12.12.0-linux-x64.tar.gz

decompression ：

[[email protected] nodejs]$ tar -xvf  node-v12.12.0-linux-x64.tar.gz

Configure environment variables ：

[[email protected] nodejs]$ vim /etc/profile

Add the following ：

export NODE_HOME=/usr/local/nodejs/node-v12.12.0-linux-x64
export PATH=$NODE_HOME/bin:$PATH

Be careful ：NODE_HOME The following value is the directory after you unzipped it , Exit after saving ; The installation directory can be accessed through whereis node To view the .

Update environment variables ：

[[email protected] nodejs]$ source /etc/profile

Check the installed version ：

[[email protected] nodejs]$ node -v[[email protected] nodejs]$ npm -v

If the version information can be displayed, the installation is successful .

2、 install MySQL

Create folders and set permissions ：

[[email protected] nodejs]$ cd /home/admin
[[email protected] admin]$ mkdir downloads
[[email protected] admin]$ chmod 777 downloads
[[email protected] admin]$ cd downloads/

Import RPM Source ：

[[email protected] downloads]$ wget https://dev.mysql.com/get/mysql80-community-release-el8-1.noarch.rpm
[[email protected] downloads]$ sudo rpm -ivh mysql80-community-release-el8-1.noarch.rpm

Start installation ：

[[email protected] downloads]$ sudo yum install -y mysql-server

start-up MySQL：

[[email protected] downloads]$ sudo systemctl start mysqld

see MySQL edition ：

[[email protected] downloads]$ mysql -V

The next step is to modify the account and password .

No password to enter MySQL shell：

[[email protected] downloads]$ mysql -u root

Change Password ：

mysql> ALTER USER 'root'@'localhost' IDENTIFIED BY ' Change this to your own password ';

sign out MySQL shell：

mysql> exit

Open ports ：

[[email protected] downloads]$ firewall-cmd --add-port=3306/tcp --permanent

If you execute the above command, an error will be reported “FirewallD is not running”, You need to restart the firewall , After the port is opened, you need to reload the firewall , The order is as follows ：

[[email protected] downloads]$ systemctl restart firewalld.service #  service iptables restart 

MySQL Security Settings

MySQL 8 New Security Wizard , This is for server deployment MySQL Come on , Simplified operation of security settings , excellent .

Security settings are roughly divided into the following steps / Options ：

1. Password strength verification plug-in （N）

2. modify root Account and password （Y）

3. Remove anonymous users （Y）

4. Ban root Account remote login （N）

5. Remove test database （N）

6. Reload authorization table （Y）

The above steps / The options are based on your own needs .

Enter security settings ：

[[email protected] downloads]$ mysql_secure_installation

Modify character encoding , Find the configuration file location ：

[[email protected] downloads]$ whereis my.cnf
my: /etc/my.cnf

Modify the configuration file ：

[[email protected] downloads]$ vi /etc/my.cnf
# modify 1： increase client To configure （ Beginning of file ）
[client]
default-character-set=utf8mb4
# modify 2： increase mysqld To configure （ End of file ）
#charset
character-set-server=utf8mb4
collation-server=utf8mb4_general_ci

Remember to press... After modification （:wq） Save and exit .

restart MySQL service ：

[[email protected] downloads]$ systemctl restart mysqld

Navicat Link test error handling

If you use Navicat use IP Remote connection MySQL When the failure , Tips “is not allowed to connect to this MySql server”, You can try to modify mysql In the library user surface , Will the user root Corresponding Host Values are determined by localhost Change it to %, And restart MySQL Services take effect .

3、 install Nginx

First add a repository ：

[[email protected] downloads]$ vim /etc/yum.repos.d/nginx.repo

Paste this code to save and exit ：

[nginx]
name=nginx repo
baseurl=http://nginx.org/packages/centos/$releasever/$basearch/
gpgcheck=0
enabled=1

Start installation ：

[[email protected] downloads]$ yum -y install nginx

The browser opens to input the local IP Can see a Nginx The default page is the successful installation .

Nginx Common commands ：

[[email protected] downloads]$ systemctl stop nginx.service  #  stop it nginx service 
[[email protected] downloads]$ systemctl start nginx.service  #  open nginx service 
[[email protected] downloads]$ systemctl restart nginx.service  #  restart nginx service 
[[email protected] downloads]$ systemctl status nginx.service  #  see nginx Service status 

4、 Other environments

Finally, I installed Git、Yarn、Java、Jenkins, Because these are unnecessary installation items , Just skip , The detailed installation process can be found from the network . Because my blog doesn't use similar WordPress/Hexo Equal template , The blog building part is also omitted , You can choose a mature blog template , After the environment deployment is completed, you can set up a blog .

Finally, take a brief look at the version I installed ：

3、 ... and 、 summary & Use feeling

The environment of the whole server has encountered some difficulties , It took me three days , Finally, it successfully completed in the lightweight application server , And deploy my own blog successfully .

The server is running normally , The current configuration Running a blogging system is completely sufficient , Very smooth ; adopt SSH When the tool is connected remotely The network latency is very low , Can ignore not remember , It is similar to the local . On the whole , I am very satisfied with the experience of this lightweight application server .

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