How does the server achieve security defense?

How to do server defense? Server security is very important. For operation and maintenance managers, doing a good job in server security defense can save operation and maintenance personnel a lot of trouble. So what should we do?

七秒 2021-10-25 09:26:40 0  3  1111

Multiple firewalls improve security in Symfony 5.4

I'm trying to separate the user's authentication from the administrator's authentication. So I created 2 firewalls and 2 different access controls. My security.yaml file is as follows: enable_authenticator_manager:truepassword_hashers:Symfony\Component\Security\Core\User\PasswordAuthenticatedUserInt...

P粉952365143 2023-08-26 16:14:30 0  1  627

How to set Laravel Spatie permission setting method to define a set of permissions for each user based on role?

I have 4 types of users using my system: 1. Super Admins 2. Team Super Admins, 3. Administrators and 4. Managing team members, since I use spatie to handle roles and permissions, I have a set of modules (permissions) that are common to all types of users, and another set of modules (permissions) tha...

P粉197639753 2023-11-14 12:58:58 0  1  914

mysql optimization - how to prevent full table updates in mysql

MySQL has a safe mode, but sometimes in business, you need to update multiple rows of records, but you want to prevent all table fields from being updated. I saw on the Internet that preventing full table updates through triggers, how should I write it?

世界只因有你 2017-05-18 10:55:07 0  1  938

iptables - CentOS 6 防火墙阻止tcp第二次握手ACK SYN数据包？

我的vps防火墙挡住了wget，curl，连yum update都会超时。主机是Vultr的，不像阿里云，Vultr没有面板可以管理网络，应该全靠本机防火墙。但ping命令没有问题，安装的网络转发服务，go语言的ss manyuser也没问题。 ...

高洛峰 2017-04-26 09:02:15 0  2  1585

php - Baidu and Google crawlers return 403 when accessing the laravel5.4 framework

CSRF verification has been turned off, and get and post access are allowed. The website can be accessed normally. The server does not use any security software. The firewall does not restrict any IP addresses. Has anyone encountered related problems?

给我你的怀抱 2017-06-06 09:53:45 0  1  716

Apache stops some time after phpstudy is started, and the php_curl.dll module is wrong.

Apache stopped for a while after phpstudy was started, and the php_curl.dll module had an error, and then the website could not be opened. After restarting phpstudy or turning off the error prompt, the website could continue to be accessed. Dear masters, please help me solve it. phpstudy installed d...

陈江 2018-08-13 11:00:24 0  1  1154

Safe way to update mysql table entries using dictionary in python (prevent SQL injection)

I'm writing a helper function for my web application that updates the database based on some information obtained from an external API (not user input). I have the following code, but it is marked as "unsafe" by the Banditpython package. Ideally I could write a function in a way that hardc...

P粉627427202 2023-09-08 20:06:07 0  1  705

ssh - Are there any useful security logs and protection methods for self-built git servers?

You need to set up a Git server. Currently, both git and gitolite can run correctly. But there is a worry, I am afraid that the team members will write it randomly, especially because the User Info of git can be filled in randomly. I would like to know if there is any way to record everyone's operat...

PHPz 2017-05-02 09:29:29 0  1  673

Security - After configuring symfony2 firewall, how to obtain current user information on unauthorized pages?

The firewall configuration is as follows: {Code...} After logging in, except for the /login page, other pages can obtain the current user information through $this->getUser(). How to obtain the current user information on the /login page? According to the answer I solved the problem, below is...

伊谢尔伦 2017-05-16 16:45:23 0  1  515

apache server is attacked

Hello everyone, I am a newbie in PHP and have basically zero knowledge about server security. I currently have a website online. But every day, apache hangs for no apparent reason. After checking the error.log of apache, I found that every time before the service hung up, a large number of people in...

人不三俗枉少年 2019-05-01 12:39:20 0  1  1163