在Python中获取DNS搜索后缀 [英] Get DNS search suffix in Python

问题描述

是否有人知道如何在客户端上获取DNS搜索后缀的列表-手动添加的后缀和DHCP分配的后缀.我希望有一个跨平台的解决方案，但仅Windows解决方案可以使用.我在pywin32或其他模块中找不到任何东西...

Does anyone know how to get a list of DNS search suffixes on a client - both ones that have been manually added and ones assigned by DHCP. I'd prefer to have a cross-platform solution, but a Windows only solution will work. I couldn't find anything in pywin32 or other modules...

推荐答案

经过一番调查，由于操作系统以不同的方式存储此信息，因此似乎没有一种跨平台的方式.在Windows上，我最终通过注册表查询信息:

After a bit of investigation, it doesn't look like there is a cross-platform way since the OS stores this information differently. On Windows, I ended up querying the information via the registry:

def getLocalDomainSuffix():
    domainSuffixSet = set()
    netKey = _winreg.OpenKey(_winreg.HKEY_LOCAL_MACHINE, 'SYSTEM\\CurrentControlSet\\Services\\Tcpip\\Parameters')
    for keyName in ("DhcpDomain", "SearchList"):    
        value, type = _winreg.QueryValueEx(netKey, keyName)
        if value:
            for item in value.split(','):
                domainSuffixSet.add(item)
    return domainSuffixSet

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