随笔分类 -  DNS

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EC2 Volumes(转)
摘要:From http://www.virtualmin.com/documentation/cloudmin/vm/ec2-ebsIntroduction to EC2 VolumesEC2 Volumes (called Elastic Block Storage by Amazon) are essentially disk images that can be mounted on any system running on EC2, and continue to exist even if the system they were attached to is deleted. The 阅读全文
posted @ 2011-09-13 15:23 -Anny- 阅读(301) 评论(0) 推荐(0)
Visits-PageView-Unique Visitors: Metrics From GA
摘要:1. Visits simply mean visitor activity within 30 minutes. So if I went to your site, I'll be counted as 1 visit. Let's say you have a page called A on your site. I click on that page the counter will be 1 Visit/1 Pageview for A. I click on refresh on my browser for page A, that'll still 阅读全文
posted @ 2011-07-08 16:34 -Anny- 阅读(329) 评论(0) 推荐(0)
Time on Site - Metric from GA
摘要:Time on site is calculated as the time spent between the first pageviewof a visit and the last pageview of a visit. If your visitors are onlyvisiting one page on your site, then there is no second pageview forthat visit for GA to calculate an average time on site. In those cases,GA assigns a time on 阅读全文
posted @ 2011-07-08 15:23 -Anny- 阅读(252) 评论(0) 推荐(0)
Cloud computing Wiki links
摘要:http://en.wikipedia.org/wiki/Cloud_infrastructure#Infrastructurehttp://en.wikipedia.org/wiki/Amazon_Machine_Imagehttp://en.wikipedia.org/wiki/Amazon_Elastic_Compute_CloudAn Amazon Machine Image (AMI) is a special type of virtual appliance which is used to instantiate (create) a virtual machine (cal 阅读全文
posted @ 2011-07-07 17:45 -Anny- 阅读(202) 评论(0) 推荐(0)
What is Dynamic DNS?
摘要:From http://www.namecheap.com/support/knowledgebase/article.aspx/33/11/what-is-dynamic-dnsNOTE: Dynamic DNS feature is only available for domains using NameCheap’s default name servers.Asyou know any domain should be pointed to an IP in order to be seen inbrowsers. If you don't have a connection 阅读全文
posted @ 2011-06-15 15:40 -Anny- 阅读(250) 评论(0) 推荐(0)
127.0.0.1(转)
摘要:The IP address 127.0.0.1 is a special purpose address reserved for use on each computer. 127.0.0.1 is conventionally a computer's loopback address.Network software and utilities can use 127.0.0.1 to access a local computer's TCP/IP network resources. Messages sent to loopback IP addresses li 阅读全文
posted @ 2011-06-15 12:09 -Anny- 阅读(232) 评论(0) 推荐(0)
Private IP Addresses(转)
摘要:Q. What are private IP addresses?A. The Internet Assigned Numbers Authority (IANA) has reserved the following three blocks of the IP address space for private internets (local networks):10.0.0.0 - 10.255.255.255 172.16.0.0 - 172.31.255.255 192.168.0.0 - 192.168.255.255Also, IP addresses in the range 阅读全文
posted @ 2011-06-15 12:04 -Anny- 阅读(218) 评论(0) 推荐(0)
What is a Private IP Address(转)
摘要:What is a Private IP Address?When you send a letter from your house to a friend, you have to know the address to send it to so that the postman knows which street and which house to take it to. Computer networks such as the Internet are no different except instead of sending your web traffic to &quo 阅读全文
posted @ 2011-06-15 12:04 -Anny- 阅读(356) 评论(0) 推荐(0)
Private network(转)
摘要:From Wikipedia, the free encyclopedia Jump to: navigation, search In the Internet addressing architecture, a private network is a network that uses private IP address space, following the standards set by RFC 1918 and RFC 4193. These addresses are commonly used for home, office, and enterprise local 阅读全文
posted @ 2011-06-15 11:55 -Anny- 阅读(409) 评论(0) 推荐(0)
Primary DNS VS Secondary DNS (转)
摘要:http://www.ntchosting.com/dns/primary-and-secondary.htmlPrimary DNS / Secondary DNSDNS, or Domain Name Server, represents a computer, which is charged with the task of translating domain names into IP addresses. Thanks to the DNS service we can type access websites by only typing their alpha-numeri 阅读全文
posted @ 2011-06-10 17:59 -Anny- 阅读(923) 评论(0) 推荐(0)
域名共享(dnspod)
摘要:https://www.dnspod.cn/About/Support?fid=203域名共享有什么作用?1、什么是域名共享? 域名共享就是多个dnspod账户共同管理一个域名 2、什么情况下会用到域名共享功能? (1)如果公司有帐号A,其中有域名a、b、c;仅域名a需要多人共同管理,那么便可以选择域名共享功能,将域名a共享给其他帐号。 (2)如果有企业等级VIP域名a存放于企业帐号A中,另有域名b、c存放于个人帐号B中,为方便管理,可以将域名a共享到个人帐号B中,通过登录个人帐号B统一管理。 3、怎样设置和使用域名共享? (1)登录我们的官网 (2)点击您要管理的域名 (3)点击域名管理界面 阅读全文
posted @ 2011-06-03 17:53 -Anny- 阅读(976) 评论(0) 推荐(0)
宕机检测(DNSPod)
摘要:怎样设置宕机检测?1、什么是宕机检测? 宕机检测就是:当您的一个服务器确认宕机后,系统会自动给您切换到可用的服务器,宕掉的服务器回复后自动切换回原ip(注意:系统不默认开启宕机检测,需要您手动启用宕机监控) 检测的原理:我们会向目标服务器发起一次http请求,当且仅当完全无应答时,我们会认为服务器宕机,从而进行操作。(这里需要注意的是,403,500等错误返回只提示警告,不进行ip切换。) 2、什么情况下会用到宕机检测功能? (1)需要注意的是,宕机检测并没有做到服务器宕机,备用服务器立即生效,我们都知道解析记录是有缓存的,再加上宕机检测次数,无论怎样修改,都需要等待旧记录缓存失效,新的记录才 阅读全文
posted @ 2011-06-03 17:48 -Anny- 阅读(1264) 评论(0) 推荐(0)
域名绑定(DNSPod)
摘要:什么是域名绑定?1、什么是域名绑定? 域名绑定可以使您在一个域名里管理记录完全相同的多个域名,免除您对多域名相同记录的重复操作。 注: 万网的中文.cn域名买一得六,其中的中文域名可以享受免费绑定,当添加主域名为中文.cn域名时会自动添加上。 2、什么情况下会用到域名绑定? 例如 dnspod.com 和 dnspod.net 需要完全相同的解析记录,如果分别在两个域名内添加、修改记录会很麻烦。这个时候就可以使用域名绑定功能,将 dnspod.net 绑定到 dnspod.net 上,这样2个不同的域名就有了相同的记录,如果需要做什么更改,只需要在独立域名 dnspod.com 中修改一次即可 阅读全文
posted @ 2011-06-03 17:41 -Anny- 阅读(947) 评论(0) 推荐(0)
资源记录规则
摘要:https://www.dnspod.cn怎样添加A记录?1、什么情况下会用到A记录? [如果需要将域名指向一个ip地址,就需要添加A记录] 2、A记录的添加方式 A.主机记录处填子域名(比如需要添加www.123.com的解析,只需要在主机记录处填写www即可;如果只是想添加123.com的解析,主机记录直接留空,系统会自动填一个“@”到输入框内) B.记录类型为A C.线路类型(默认为必填项,否则会导致部分用户无法解析;在上图中,默认的作用为:除了联通用户之外的所有用户,都会指向1.1.1.1) ... 阅读全文
posted @ 2011-06-03 17:30 -Anny- 阅读(642) 评论(0) 推荐(0)
域名加锁
摘要:域名锁定有什么作用?1、什么是域名锁定? 域名锁定能将您的域名加锁,使其在加锁期间不接受用户的任何更改,为您的解析保驾护航! 2、什么情况下用到域名锁定功能? 域名锁定功能,就是为了防止一些由于帐号密码泄漏、或者域名注册信息被黑导致域名被取回等等这样一些关于对用户信任方面的安全问题,为您的解析保驾护航! 需要提醒您的是,我们依然对您注册的邮箱保持信任,因此域名解锁需要的解锁码将发送到您的注册邮箱,为了您解析的安全,请保管好邮箱密码。 阅读全文
posted @ 2011-06-03 16:00 -Anny- 阅读(464) 评论(0) 推荐(0)
Types of DNS Records(转)
摘要:From http://www.hscripts.com/tools/HDNT/dns-record.phpA Domain Name is a unique name that you choose for your web site. All websites are identified only by their names called as domain names. Each Domain name has a unique IP Address.This page helps you to find the Ip Address for given hostname. This 阅读全文
posted @ 2011-06-03 13:29 -Anny- 阅读(1872) 评论(0) 推荐(0)
IP欺骗原理精解和防范手段综述 (转)
摘要:http://soft.yesky.com/security/hkjj/408/2053408.shtml2005-08-01 16:31作者:赵彪出处:黑基责任编辑:原野 即使是很好的实现了TCP/IP协议,由于它本身有着一些不安全的地方,从而可以对TCP/IP网络进行攻击。这些攻击包括序列号欺骗,路由攻击,源地址欺骗和授权欺骗。本文除了介绍IP欺骗攻击方法外,还介绍怎样防止这个攻击手段。 上述攻击是建立在攻击者的计算机(包括路由)是连在INTERNET上的。这里的攻击方法是针对TCP/IP本身的缺陷的,而不是某一具体的实现。 实际上,IP 欺骗不是进攻的结果,而是进攻的手段。进攻实际上是信 阅读全文
posted @ 2011-05-12 18:13 -Anny- 阅读(910) 评论(0) 推荐(0)
DNS欺骗(转)
摘要:作者: 文章出处:http://www.h4h4.com 发布时间:2002-10-27 点击:5717字体: 【小 中 大】 DNS欺骗是一种非常复杂的攻击手段。但是它使用起来比IP欺骗要简单一些,所以也比较常见。最近一个利用DNS欺骗进行攻击的案列,是全球著名网络安全销售商RSA Security的网站所遭到的攻击。其实RSA Security网站的主机并没有被入侵,而是RSA的域名被黑客劫持,当用户连上RSA Security时,发现主页被改成了其他的内容。首先要看一下DNS是怎样工作的。DNS是全称是Domain Name Server,既域名服务器。当一台主机发送一个请求要求解析某个 阅读全文
posted @ 2011-05-12 18:08 -Anny- 阅读(722) 评论(0) 推荐(0)
Using ssh connect to Amazon EC2 instance
摘要:Using ssh to remote login instance in EC2:xxx@xxx-Lenovo-Product:~$ ssh -i /home/xxx/Documents/privatekey/west.pem ubuntu@x.x.x.xThe output is below:@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ WARNING: UNPROTECTED PRIVATE KEY FILE! @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ 阅读全文
posted @ 2011-05-12 17:21 -Anny- 阅读(655) 评论(0) 推荐(0)
Amazon EC2(转)
摘要:From http://aws.amazon.com/ec2/Amazon Elastic Compute Cloud (Amazon EC2) Amazon Elastic Compute Cloud (Amazon EC2) is a web service that provides resizable compute capacity in the cloud. It is designed to make web-scale computing easier for developers. Amazon EC2’s simple web service interface allow 阅读全文
posted @ 2011-05-12 12:33 -Anny- 阅读(613) 评论(0) 推荐(0)

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