是的，強(qiáng)烈建議在安裝MySQL後運(yùn)行mysql_secure_installation以提升安全性。該工具通過設(shè)置強(qiáng)root密碼、移除匿名用戶、禁用遠(yuǎn)程root登錄、刪除測(cè)試數(shù)據(jù)庫(kù)並重新加載權(quán)限，幫助加固默認(rèn)配置，防止未經(jīng)授權(quán)的訪問。使用時(shí)需依次選擇“yes”確認(rèn)上述操作，並輸入強(qiáng)密碼。雖然可手動(dòng)執(zhí)行SQL命令實(shí)現(xiàn)相同效果，但該腳本更簡(jiǎn)單安全，尤其適用於生產(chǎn)環(huán)境。

Yes, it's highly recommended to run mysql_secure_installation after installing MySQL — especially if you're setting up a database for production or any environment where security matters. This tool helps you tighten the default settings of a fresh MySQL install, which are often too loose for real-world use.

Here's why and how it matters:

What Does mysql_secure_installation Do?

This script walks you through several basic but critical security steps. It's not mandatory in the sense that MySQL will work fine without it, but skipping it leaves your database exposed to unnecessary risks.

It handles:

• Setting a strong root password
• Removing anonymous user accounts
• Disabling remote root login
• Dropping the test database (and removing access to it)
• Reloading privileges so changes take effect immediately

These may seem minor, but they're exactly the kind of defaults attackers look for.

Why You Shouldn't Skip It

MySQL is often installed with default settings that assume you're working in a safe, local environment. In reality, even a development machine can be exposed through network services or other apps connecting to the DB.

For example:

• The default root user has no password initially
• There's an anonymous user that allows anyone to connect without credentials
• The test database is accessible by anyone

All of these make your database vulnerable to unauthorized access — especially if your server is public-facing.

Running mysql_secure_installation removes these weak points quickly and easily.

How to Use It (And What to Choose)

Once MySQL is installed, just open a terminal and run:

 sudo mysql_secure_installation

Then follow the prompts. Here's what to do at each step:

• Set root password : Yes, set one. Use a strong password.
• Remove anonymous users : Definitely yes.
• Disallow root login remotely : Yes, unless you have a specific need to log in from another host.
• Remove test database : Yes, unless you really need it (unlikely).
• Reload privilege tables : Yes, to apply all changes.

That's it. No complicated steps, just a few "yes" answers and a solid password.

Alternatives and Manual Setup

If you prefer not to use the script, you can manually secure your MySQL instance by logging into the MySQL shell and running the equivalent SQL commands. But unless you know exactly what you're doing, the secure installation script is faster and safer.

Also, some cloud providers or automated setups might handle this step for you. If you're using something like AWS EC2 or a Docker image, double-check whether this has already been done.

In short, while it's technically optional, skipping mysql_secure_installation is like leaving your front door unlocked. It's a quick and easy way to lock down your MySQL installation and avoid common security pitfalls.

基本上就這些。

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