sh VPS服务器 - 设置 - Centos的

Posted 2021-05-06

// To check the OS of the server.
	"cat /etc/os-release" (to check the operating system of the srever and version of it.) 


// Enter into the server for the first time.
. Type in the given server IP:104.237.9.126 and server default password.(Opens up the server [root@USTEST ~])

// Change the default 'root' password to a different password.
// can be used to change the password at any point of time by just mentioning the user at the end insterd of root.
. set/reset root password
	CMD - "passwd root"

// If needed create different users based on your requirement.
. add new user (e.g: us) 
	"adduser us"

// after the above step create a password for the above mentioned user. 
. set passwd for the new user (ex: us)
	"passwd us"

// new users has to be assigned to a group. 
. add new user to super privileges group (wheel) (ex: us)
	"gpasswd -a us wheel"

// Install firewall to protect your server.
. 	"yum install firewalld" - (install the firewall)
	"systemctl start firewalld" - (start the firewall after installation.)
	"systemctl enable firewalld" - (enable the firewall after starting it.)
	"systemctl status firewalld" - (check the status of the firewalld.)

// install java in the server. 
. install Java
	"yum install java-1.8.0-openjdk"
	"java -version" - (to get the version of the installed java.)

// set the java path in the environment.
. set JAVA_HOME environment variable
	"update-alternatives --config java"	- fetch java installation folder path (/usr/lib/jvm/java-1.8.0-openjdk-1.8.0.212.b04-0.el7_6.x86_64/jre/bin/java)
	"nano .bash_profile" 			- edit profile file
	"export JAVA_HOME=<PATH>/jre/bin/java" 	- add java path at last in the file
	"source .bash_profile"			- refresh bash profile file
	"echo $JAVA_HOME"			- check env var

// install Apache server.
. install and start apache server
	"yum install -y httpd" - to install the httpd
	"systemctl start httpd" - to start the httpd
	"systemctl enable httpd" - to enable the httpd
	"systemctl status httpd" - to get the satatus of the httpd. 
	"systemctl restart httpd" - to get the apache restarted.

. open httpd port
	"firewall-cmd --permanent --zone=public --add-service=http"
	"firewall-cmd --reload"

. install extended package for enterprise linux
	"yum install -y epel-release" - ()

. install sudo
	"yum install sudo" - to install sudo users.

// yum is the primary tool for getting, installing, deleting, querying, and managing Red Hat Enterprise Linux RPM software packages from official Red Hat software repositories, as well as other third-party repositories. 
. update yum 
	"yum update" - To update your yum packages.

// install php.
. install php
	"yum install -y php"

// install phpmyadmin.
. install phpmyadmin
	"yum install -y phpmyadmin"

// c onfigure phpmyadmin in the configuration file.
. edit phpmyadmin configuration file
	"nano /etc/httpd/conf.d/phpMyAdmin.conf" 	- open configuration file
	<Directory /usr/share/phpMyAdmin/>
	<Directory /usr/share/phpMyAdmin/setup/>	- change following lines in these sections 
	// change following lines in these two above sections.
	# Require ip 127.0.0.1
      	# Require ip ::1				- comment this two line
	# Require all granted				- add this line

// Wget is a free and open source software package for retrieving files using HTTP, HTTPS, and FTP, the most widely-used Internet protocols.
// to download the files from a perticular link.
. install wget
	"yum install wget"

. update repository to include mysql
	"wget http://repo.mysql.com/mysql-community-release-el7-5.noarch.rpm" 	- download the mysql package
	"sudo rpm -ivh mysql-community-release-el7-5.noarch.rpm"		- add to red hat packages
	"yum update"								- update yum 

. install and start mysql
	"sudo yum install mysql-server"
	"sudo systemctl start mysqld"
	"sudo systemctl status mysqld"
	"sudo systemctl restart mysqld" - restart the mysql.

. secure mysql
	"mysql_secure_installation" - Follow this link: https://mariadb.com/kb/en/library/mysql_secure_installation/
	"sudo systemctl restart mysqld" - restart mysql server.
	"systemctl restart httpd" - restart the httpd instance.

. install and start ftp server
	"yum install vsftpd"
	"systemctl start vsftpd"
	"systemctl enable vsftpd"

. edit ftp server conf file
	"nano /etc/vsftpd/vsftpd.conf"  -Follow this link: https://linuxize.com/post/how-to-setup-ftp-server-with-vsftpd-on-centos-7/ 

// Reload the firewall.
	firewall-cmd --reload

Some useful Links:

https://www.digitalocean.com/community/tutorials/initial-server-setup-with-centos-7
https://www.digitalocean.com/community/tutorials/how-to-set-up-ssh-keys-on-centos7
https://www.digitalocean.com/community/tutorials/how-to-create-a-sudo-user-on-centos-quickstart
https://www.digitalocean.com/community/tutorials/how-to-set-up-a-firewall-using-firewalld-on-centos-7

https://linuxize.com/post/how-to-setup-ftp-server-with-vsftpd-on-centos-7/
https://mariadb.com/kb/en/library/mysql_secure_installation/