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    • 1. 发明授权
    • Robust domain name resolution
    • 强大的域名解析
    • US08676989B2
    • 2014-03-18
    • US12723447
    • 2010-03-12
    • Noah TreuhaftDavid UlevitchMichael Damm
    • Noah TreuhaftDavid UlevitchMichael Damm
    • G06F15/16
    • H04L61/1511H04L29/12066H04L29/12811H04L61/3025H04L61/35H04L61/6009
    • A recursive DNS nameserver system and related domain name resolution techniques are disclosed. The DNS nameservers utilize a local cache having previously retrieved domain name resolution to avoid recursive resolution processes and the attendant DNS requests. If a matching record is found with a valid (not expired) TTL field, the nameserver returns the cached domain name information to the client. If the TTL for the record in the cache has expired and the nameserver is unable to resolve the domain name information using DNS requests to authoritative servers, the recursive DNS nameserver returns to the cache and accesses the resource record having an expired TTL. The nameserver generates a DNS response to the client device that includes the domain name information from the cached resource record. In various embodiments, subscriber information is utilized to resolve the requested domain name information in accordance with user-defined preferences.
    • 公开了递归的DNS名称服务器系统和相关的域名解析技术。 DNS名称服务器利用具有先前检索到的域名解析的本地缓存来避免递归解决过程和伴随的DNS请求。 如果找到具有有效(未过期)TTL字段的匹配记录,则名称服务器将缓存的域名信息返回给客户端。 如果缓存中的记录的TTL已经过期,并且名称服务器无法使用向权威服务器的DNS请求来解析域名信息,则递归DNS名称服务器返回到缓存并访问具有过期的TTL的资源记录。 名称服务器将生成DNS客户端设备的DNS响应,其中包括缓存的资源记录中的域名信息。 在各种实施例中,用户信息用于根据用户定义的偏好来解析所请求的域名信息。
    • 2. 发明申请
    • Robust Domain Name Resolution
    • 强大的域名解析
    • US20100274970A1
    • 2010-10-28
    • US12723447
    • 2010-03-12
    • Noah TreuhaftDavid UlevitchMichael Damm
    • Noah TreuhaftDavid UlevitchMichael Damm
    • G06F15/177G06F12/08
    • H04L61/1511H04L29/12066H04L29/12811H04L61/3025H04L61/35H04L61/6009
    • A recursive DNS nameserver system and related domain name resolution techniques are disclosed. The DNS nameservers utilize a local cache having previously retrieved domain name resolution to avoid recursive resolution processes and the attendant DNS requests. If a matching record is found with a valid (not expired) TTL field, the nameserver returns the cached domain name information to the client. If the TTL for the record in the cache has expired and the nameserver is unable to resolve the domain name information using DNS requests to authoritative servers, the recursive DNS nameserver returns to the cache and accesses the resource record having an expired TTL. The nameserver generates a DNS response to the client device that includes the domain name information from the cached resource record. In various embodiments, subscriber information is utilized to resolve the requested domain name information in accordance with user-defined preferences.
    • 公开了递归的DNS名称服务器系统和相关的域名解析技术。 DNS名称服务器利用具有先前检索到的域名解析的本地缓存来避免递归解决过程和伴随的DNS请求。 如果找到具有有效(未过期)TTL字段的匹配记录,则名称服务器将缓存的域名信息返回给客户端。 如果缓存中的记录的TTL已经过期,并且名称服务器无法使用向权威服务器的DNS请求来解析域名信息,则递归DNS名称服务器返回到缓存并访问具有过期的TTL的资源记录。 名称服务器将生成DNS客户端设备的DNS响应,其中包括缓存的资源记录中的域名信息。 在各种实施例中,用户信息用于根据用户定义的偏好来解析所请求的域名信息。
    • 4. 发明授权
    • Selective proxying in domain name systems
    • 域名系统中的选择性代理
    • US08694642B2
    • 2014-04-08
    • US13279075
    • 2011-10-21
    • Mathew DempskyDavid UlevitchNoah TreuhaftMichael Damm
    • Mathew DempskyDavid UlevitchNoah TreuhaftMichael Damm
    • G06F15/16G06F15/173
    • H04L61/1511H04L61/6013
    • Systems and methods for processing requests for domain name information in accordance with subscriber information are provided. A request for domain name information can be correlated with subscriber preferences to resolve the domain name information. Domain names may be flagged for blocking or proxying by one or more subscriber preferences. In response to a flagged domain name, a client device can be redirected to a web server that can function as proxy on behalf of the user for accessing the flagged domain. In one example, user preferences and/or network preferences can be used to determine whether a particular user can bypass a blocking preference and access the flagged domain using the proxy.
    • 提供了根据用户信息处理域名信息请求的系统和方法。 对域名信息的请求可以与用户偏好相关联,以解决域名信息。 可以通过一个或多个订阅者偏好来标记域名以阻止或代理。 响应于已标记的域名,可以将客户端设备重定向到可以代表用户作为代理的Web服务器,以访问被标记的域。 在一个示例中,可以使用用户偏好和/或网络偏好来确定特定用户是否可以绕过阻止偏好并且使用代理来访问被标记的域。
    • 5. 发明授权
    • Recursive DNS nameserver
    • 递归DNS名称服务器
    • US08606926B2
    • 2013-12-10
    • US11424230
    • 2006-06-14
    • David Ulevitch
    • David Ulevitch
    • G06F15/16
    • H04L61/2007H04L29/12066H04L29/12132H04L61/1511H04L61/1552
    • A recursive DNS server receives a request for domain name information associated with a domain name from a subscriber. In response to the request for domain name information, the recursive DNS nameserver determines a subscriber identifier and subscriber information associated with the subscriber identifier. The recursive DNS nameserver resolves the request for domain name information based on the subscriber information to generate a response to the request for domain name information. The recursive DNS nameserver then returns the response to the request for domain name information to the subscriber.
    • 递归DNS服务器从订户接收与域名相关联的域名信息的请求。 响应于对域名信息的请求,递归DNS名称服务器确定与用户标识符相关联的用户标识符和订户信息。 递归DNS名称服务器根据用户信息解析对域名信息的请求,以产生对域名信息请求的响应。 递归DNS名称服务器然后将响应请求返回给用户的域名信息。