search
HomeDatabaseMysql TutorialHow to install MySql5.7 on CentOS7.2 and enable remote connection authorization

1. Install mysql5.7

Centos 7 and later versions use mariadb in the default source of yum instead of the original mysql, so the installation method has some changes compared to the past:

Download the source of mysql

wget http://dev.mysql.com/get/mysql57-community-release-el7-7.noarch.rpm

Install the yum library

yum localinstall -y mysql57-community-release-el7-7.noarch.rpm

Install mysql

yum install -y mysql-community-server

Start the mysql service

systemctl start mysqld.service

2. Modify the mysql root password

mysql5.7 strengthens the security of the root user, so a random password will be initialized after the first installation. The following is how to view the initial random password

grep 'temporary password' /var/log/mysqld.log

The results are as follows:

How to install MySql5.7 on CentOS7.2 and enable remote connection authorization

Enter mysql

mysql -uroot -p

 How to install MySql5.7 on CentOS7.2 and enable remote connection authorization

Change password

set password = password('yybrhr_2018');
alter user 'root'@'localhost' password expire never;
flush privileges;

How to install MySql5.7 on CentOS7.2 and enable remote connection authorization

Then log out and log in with the new password.

How to install MySql5.7 on CentOS7.2 and enable remote connection authorization

3. Remote connection authorization:

grant all privileges on *.* to 'root'@'%' identified by 'yybrhr_2018' with grant option;

How to install MySql5.7 on CentOS7.2 and enable remote connection authorization

After authorization, check with nevicat Is it possible to connect? If not, it may be due to firewall restrictions. You need to add rules for opening database ports in the firewall.

4. The firewall opens the database port (default 3306, which can be modified in /etc/my.cnf)

[1] View the current firewall

firewall-cmd --list-all

How to install MySql5.7 on CentOS7.2 and enable remote connection authorization

【2】Open port 3306

firewall-cmd --permanent --add-port=3306/tcp

【3】Restart the firewall

service firewalld restart

【4】Check whether port 3306 is open

 firewall-cmd --query-port=3306/tcp

How to install MySql5.7 on CentOS7.2 and enable remote connection authorization

【5】Check the current firewall again

firewall-cmd --list-all

How to install MySql5.7 on CentOS7.2 and enable remote connection authorization

##【6】Test again whether you can connect remotely

How to install MySql5.7 on CentOS7.2 and enable remote connection authorization

The above is the detailed content of How to install MySql5.7 on CentOS7.2 and enable remote connection authorization. For more information, please follow other related articles on the PHP Chinese website!

Statement
This article is reproduced at:亿速云. If there is any infringement, please contact admin@php.cn delete
MySQL String Types: Storage, Performance, and Best PracticesMySQL String Types: Storage, Performance, and Best PracticesMay 10, 2025 am 12:02 AM

MySQLstringtypesimpactstorageandperformanceasfollows:1)CHARisfixed-length,alwaysusingthesamestoragespace,whichcanbefasterbutlessspace-efficient.2)VARCHARisvariable-length,morespace-efficientbutpotentiallyslower.3)TEXTisforlargetext,storedoutsiderows,

Understanding MySQL String Types: VARCHAR, TEXT, CHAR, and MoreUnderstanding MySQL String Types: VARCHAR, TEXT, CHAR, and MoreMay 10, 2025 am 12:02 AM

MySQLstringtypesincludeVARCHAR,TEXT,CHAR,ENUM,andSET.1)VARCHARisversatileforvariable-lengthstringsuptoaspecifiedlimit.2)TEXTisidealforlargetextstoragewithoutadefinedlength.3)CHARisfixed-length,suitableforconsistentdatalikecodes.4)ENUMenforcesdatainte

What are the String Data Types in MySQL?What are the String Data Types in MySQL?May 10, 2025 am 12:01 AM

MySQLoffersvariousstringdatatypes:1)CHARforfixed-lengthstrings,2)VARCHARforvariable-lengthtext,3)BINARYandVARBINARYforbinarydata,4)BLOBandTEXTforlargedata,and5)ENUMandSETforcontrolledinput.Eachtypehasspecificusesandperformancecharacteristics,sochoose

How to Grant Permissions to New MySQL UsersHow to Grant Permissions to New MySQL UsersMay 09, 2025 am 12:16 AM

TograntpermissionstonewMySQLusers,followthesesteps:1)AccessMySQLasauserwithsufficientprivileges,2)CreateanewuserwiththeCREATEUSERcommand,3)UsetheGRANTcommandtospecifypermissionslikeSELECT,INSERT,UPDATE,orALLPRIVILEGESonspecificdatabasesortables,and4)

How to Add Users in MySQL: A Step-by-Step GuideHow to Add Users in MySQL: A Step-by-Step GuideMay 09, 2025 am 12:14 AM

ToaddusersinMySQLeffectivelyandsecurely,followthesesteps:1)UsetheCREATEUSERstatementtoaddanewuser,specifyingthehostandastrongpassword.2)GrantnecessaryprivilegesusingtheGRANTstatement,adheringtotheprincipleofleastprivilege.3)Implementsecuritymeasuresl

MySQL: Adding a new user with complex permissionsMySQL: Adding a new user with complex permissionsMay 09, 2025 am 12:09 AM

ToaddanewuserwithcomplexpermissionsinMySQL,followthesesteps:1)CreatetheuserwithCREATEUSER'newuser'@'localhost'IDENTIFIEDBY'password';.2)Grantreadaccesstoalltablesin'mydatabase'withGRANTSELECTONmydatabase.TO'newuser'@'localhost';.3)Grantwriteaccessto'

MySQL: String Data Types and CollationsMySQL: String Data Types and CollationsMay 09, 2025 am 12:08 AM

The string data types in MySQL include CHAR, VARCHAR, BINARY, VARBINARY, BLOB, and TEXT. The collations determine the comparison and sorting of strings. 1.CHAR is suitable for fixed-length strings, VARCHAR is suitable for variable-length strings. 2.BINARY and VARBINARY are used for binary data, and BLOB and TEXT are used for large object data. 3. Sorting rules such as utf8mb4_unicode_ci ignores upper and lower case and is suitable for user names; utf8mb4_bin is case sensitive and is suitable for fields that require precise comparison.

MySQL: What length should I use for VARCHARs?MySQL: What length should I use for VARCHARs?May 09, 2025 am 12:06 AM

The best MySQLVARCHAR column length selection should be based on data analysis, consider future growth, evaluate performance impacts, and character set requirements. 1) Analyze the data to determine typical lengths; 2) Reserve future expansion space; 3) Pay attention to the impact of large lengths on performance; 4) Consider the impact of character sets on storage. Through these steps, the efficiency and scalability of the database can be optimized.

See all articles

Hot AI Tools

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

Video Face Swap

Video Face Swap

Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Tools

DVWA

DVWA

Damn Vulnerable Web App (DVWA) is a PHP/MySQL web application that is very vulnerable. Its main goals are to be an aid for security professionals to test their skills and tools in a legal environment, to help web developers better understand the process of securing web applications, and to help teachers/students teach/learn in a classroom environment Web application security. The goal of DVWA is to practice some of the most common web vulnerabilities through a simple and straightforward interface, with varying degrees of difficulty. Please note that this software

VSCode Windows 64-bit Download

VSCode Windows 64-bit Download

A free and powerful IDE editor launched by Microsoft

Notepad++7.3.1

Notepad++7.3.1

Easy-to-use and free code editor

Atom editor mac version download

Atom editor mac version download

The most popular open source editor

SAP NetWeaver Server Adapter for Eclipse

SAP NetWeaver Server Adapter for Eclipse

Integrate Eclipse with SAP NetWeaver application server.