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O'Reilly Platform
book
Presto实战
by
Matt Fuller
,
Manfred Moser
,
Martin Traverso
March 2021
Intermediate to advanced
265 pages
6h 50m
Chinese
Posts & Telecom Press
Content preview from
Presto实战
178
|
第
10
章
客户端
协调器
工作节点
工作节点
工作节点
协调器
图
10-1
:需要安全保障的
Presto
网络连接
下面各节会更详细地探讨这些需求,先从
Presto
的用户认证开始。
10.1
认证
认证
是向系统证明身份的过程,它对于任何安全系统都必不可少。计算机系统支持多种认
证方法,包括
Kerberos
、轻量级目录访问协议
(
LDAP
)密码认证以及证书认证。是否支
持特定的认证方法取决于每个系统。在
Presto
中
,客户端通常通过以下方法之一来进行
Presto
的认证。
•
通过
LDAP
输入密码,参见下述内容。
•
证书,参见
10.5
节。
•
Kerberos
,参见
10.6
节。
默认情况下,
Presto
中没有配置认证
。任何可以访问协调器的人都可以连接并执行查询或
其他操作。在本章中,你将学习有关
LDAP
和证书认证机制的详细信息
,因为它们是最常
用的。
然而,认证只是其中的一个环节。一旦安全主体通过了认证,他们就会分配到一定的权
限,这些权限决定了用户能够做什么。你能做的事情称为
授权
,由
SystemAccessControl
和
ConnectorAccessControl
管辖。
10.2
节将详细介绍相关信息。下面的假设一旦认证后,
用户就可以执行任何操作。实际上,以系统权限访问系统时,默认就可以执行任何操作,
如查询系统
catalog
。
安全
|
179
密码认证和
LDAP
认证
密码认证
是一种你可能每天都在使用的认证方法。通过给系统提供用户名和密码,你提供
了只有你知道的信息来证明身份。
Presto
通过密码验证模块来支持这种基本的验证方式 ...
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Publisher Resources
ISBN: 9787115560056