红帽认证系统管理员（Red Hat Certified System Administrator）：具备红帽Linux环境所需的核心系统管理技能。

RHCSA可以执行以下任务：

了解和运用必要的工具来处理文件、目录、命令行环境和文档
操作运行中的系统，包括引导到不同的运行进程、识别流程、启动和停止虚拟机以及控制服务
使用分区和逻辑配置本地存储
创建和配置文件系统和文件系统属性，例如权限、加密、访问权限控制列表和网络文件系统
部署、配置以及维护系统，包括软件安装、更新以及核心服务
管理用户和用户群组，包括使用集中目录进行身份验证
管理安全性，包括基本防火墙和SELinux配置
understand and use essential tools for handling files, directories, command-line environments and documentation
Operate running systems, including booting into different run levels, identifying processes, starting and stoping virtual machines and controlling services
Configure local storage using partitions and logical volumes
Create and configure file systems and file system attributes, such as permissions, encryption, access control lists, and network file systems
Deploy, configure, and maintain systems, including software installation, update, and core services
Manage users and groups, including use of a centralized directory for authentication
Manage security, including basic firewall and SELinux configuration

RHCSA 认证学习笔记