参考文档：
ja-netfilter
ja-netfilter-mymap-plus
激活教程
介绍一个"牛逼闪闪"开源库：ja-netfilter
1. 介绍
此方法理论适用 JeBrains 全家桶所有版本，本文基于 2021.3.3 测试。
原理：防火墙原理，利用防火墙阻止激活检测。
工具：ja-netfilter
官方介绍：
我们通常会使用防火墙来阻断这些软件的恶意访问。但防火墙也不是万能的，比如：跨平台问题、https 下无法精准阻断某个 url 访问、部分防火墙不能阻断 dns 访问。
于是就有了我今天开源的这个项目：通用的、针对 java 程序的、灵活的、精准基于规则的、基于 AOP 思想的牛逼哄哄防火墙（无数狗头）：ja-netfilter！
2. 使用方式
2.1 下载
去 ja-netfilter github 下载最新版，保存到自定义目录(不能删除)，我们基于 /rainsheep/software 目录。
2.2 配置文件
在 /rainsheep/software/ja-netfilter/config 目录下。
在 plugins 目录下有一些插件(dns.jar,url.jar 等)，对应的配置文件名为 插件名.conf。
我们使用 url 和 dns 两个配置。
dns.conf
[DNS]
EQUAL,jetbrains.com
url.conf
[URL]
PREFIX,https://account.jetbrains.com/lservice/rpc/validateKey.action
2.3 使用
我们在 JVM Options file 添加如下内容即可使用(修改为自己的路径)。
-javaagent:/rainsheep/software/ja-netfilter/ja-netfilter.jar
我这边介绍两种方式
2.3.1 使用 Toolbox App
在 Toolbox App ，打开对应软件设置
修改配置文件，添加上述那一行代码，重启即可。
2.3.2 直接启动软件
此方式需要保证软件目前处于可用状态(激活或试用)。
或者我们直接修改 vm 文件
点击编辑，加入上面那行代码，重启即可。
3. ja-netfilter-mymap-plugin
此插件为 ja-netfilter 的插件，功能为 自定义点击激活界面的显示信息，除了修改 UI 没啥作用，可选。
下载 插件，放置到 ja-netfilter 的 plugins 目录。
在 conf 目录下新建配置文件，mymap.conf
[MyMap]
EQUAL,licenseeName->Rainsheep
EQUAL,gracePeriodDays->100000
EQUAL,paidUpTo->5000-12-31
重启后，打开注册信息可以看到
4. 离线激活
在以上阻止验证的基础上，若弹窗提示过期，退出账号，输入以下离线激活码激活, 离线激活后，可登录自己账户
8CM54XX131-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-Ky1n2rWiAv/BjfKFB4qV0QHkB9yATuqH3fqZ5IW1DAnVqJludwfkJd7Vd1hgARodEn4TkI9zPioDlVqnkvytXGgCoFJimfdE9fP9B5zt/XdO78C0VWx8ziB47BYt7PST6aUZvnmBV+80xKvjrRoUVkOc7gn4a9lnWVul0cBtxpBh8sw2dg/nLzNWGpUrnEXMcqXetj5+6WKt3yjgz7Lu3qfovFLKxSjF9LJtjw8q65Pq1JohLLnSEpYpabDD0O26InUbMIbdc3IG4prjOrrywiPVFS6POfI+L7RfCin6bZQvDx2T/w/drX/CPtqqjVz6/MafRc4aZPf8eGeyORnuLQ==-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
5. 2022/09/13
idea 版本：2022.2.1
6. 2023/04/27
备份 https://oss.rainsheep.cn/save/ja-netfilter.zip