国科云提供域名管理、域名锁、智能解析、DDI、IPv6转换、SSL证书等一站式域名解决方案，并形成以云解析、云监控、云盾、云服务器为核心的云计算产品服务体系。
发布时间：2023-05-29 14:28:08
但DNS在设计之初只注重实用性和便捷性，而忽视了安全性，DNS查询过程通常是基于无连接不可靠的UDP协议，这就导致DNS查询过程中验证机制的缺失，黑客很容易利用该漏洞进行攻击。DNS服务器可能面临如下DNS攻击风险：（2）黑客伪造成授权服务器发送大量的DNS回应报文，造成DNS reply flood攻击。（4）黑客向DNS服务.........【阅读全文】
发布时间：2023-05-25 17:12:19
2.1协议安全增强为解决DNS系统在数据传输过程中的真实性和完整性保护问题，IETF提出了DNS安全增强方案DNSSEC，通过对资源记录进行签名，来保证数据的真实性和完整性。此外DNSSEC的部署还可能引起客户端的解析故障,大量包含数字签名的报文占据带宽资源等问题。DNS Curve 通过椭圆曲线加密算法和密钥分发机制，.........【阅读全文】
发布时间：2023-05-24 16:34:26
近年来，针对域名发起的劫持和攻击事件频繁发生。2009年巴西最大的银行遭受DNS缓存投毒攻击，用户被重定向至一个伪装的银行网站，导致用户密码被窃取。2013年，国家域名解析节点受到DNS拒绝服务攻击，导致.cn的部分网站无法打开，造成了非常恶劣的影响。这些DNS攻击事件让人们真正意识到DNS的安全已经成为目前互联网存在.........【阅读全文】
发布时间：2023-05-23 17:33:48
由于DNS通常采用无连接不可靠的UDP协议，攻击者可以将请求伪装成来自不同地方的IP地址，更好地隐藏自己不被追溯，使得针对DNS发动DDoS攻击变得更加容易，也更加难以防范。1.增强DNS服务器的性能和带宽，采用高性能的服务器和网络设备，提高DNS服务器的处理能力和抗攻击能力，是应对DNS DDoS攻击的主要手段之一。.........【阅读全文】
发布时间：2023-05-22 16:48:04
第一种方法：直接在浏览器上查看第二种方法：通过openssl命令查询执行命令：openssl x509 -in 证书名 -noout -datesSSL证书过期时会有什么后果？此外，SSL证书的主要作用是数据传输加密，SSL证书过期后，数据传输过程中就会处于公开暴露之中，有可能导致数据的泄露。SSL证书的管理.........【阅读全文】
JVDLFFLR2025-08-03 17:15
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