dns

问题 The scenario is this: suppose there is a web server that for whatever reason has stopped working. Is it possible for me to use DNS to have another server respond with a webpage with a message similar to "site is offline?" Thanks in advance for all of your help! 回答1: Yes. You simply need to get the second server up and running, and then change the DNS entries to point to the new A record for the new server. (Or AAAA record if you have IPv6 for it as well). 来源： https://stackoverflow.com

问题 Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 5 years ago . Quick dumb question but want to make sure. I need to redirect www.example.com to www.example1.com. www.example1.com is already secured with a SSL cert. Do i need to purchase a SSL cert for www.example.com? I am assuming 'No' because the redirect is landing on a page that is aready secured. Please advise. Thanks,

问题 Suppose I have a list of domains that I want to block with front end technology. I want to block any URL that is hosted by the domain. On top of my head I have the following methods: regex string.split("/") location.hostname But what if the URL is a shortened one? e.g. https://goo.gl/lWyZ5B . All of the above methods will return undesired result: goo.gl . This is actually a part of a Chrome extension I am planning. So maybe Chrome can fetch the shortened URL then redirect to a warning page if

问题 I just read about Amazon's new Route 53 scalable DNS service in the cloud. It seems like an affordable way of upping the reliability of a few high-volume zones. But at a cost of $1/month per zone, it is not price-effective if you want to manage several hundred low-volume zones. Just because a zone has a low volume of requests, doesn't mean it should not be reliable. I'm looking for a scalable DNS web service that can be managed via an API that is affordable for managing many low-volume zones.

问题 We're trying to implement a custom solution for Growl for Windows. We tell the Growl client to subscribe to notifications from our server. The server then gets a message from the client via the GNTP (Growl messaging protocol). We require the name of the user logged into the client machine in order to do database lookups. The GNTP does not provide this information. So, we have a connected client socket (and thus, IP address) and a message from this client containing its machine name. Is there

问题 I have a windows EC2 instance running a production website and DNS is configured to have my domain name point to its public IP. There is currently no Elastic IP (EIP) associated with the instance. I would like to start using a Elastic IP and have my domain name point to it instead of the public IP (which can change if I ever have to change the instance). Reading the documentation I find this statement troubling: When you associate an EIP with an instance, the instance's current public IP

问题 Yesterday I had successfully setup a custom subdomain in Azure storage. I had set up assets.iprobesolutions.com to point to iprobesolutions.blob.core.windows.net. This is a screenshot of my host records CNAME set up: https://www.dropbox.com/s/ndfmn5dd7m48aqg/Screenshot%202016-05-30%2019.36.11.png?dl=0. As I said, this was working fine. Today I decided instead to have iprobesolutions.com point to iprobesolutions.blob.core.windows.net and got as far as Azure accepting the domain using the

问题 I'm planning to move an old website to a new domain. Then, I would like to use the old domain with a completely brand new different website. So after the move there would be 2 different websites: Old website --> brandnewdomain.com New website --> olddomain.com The problem I'm having is that how can I 301 redirect all URLs from the old website to a new domain to keep the visitors flow from search engines and at the same time use the old domain with a new website? For example I can't 301

问题 My PC is connected to a LAN which gateway is 80.0.0.1 When I use this code: IPHostEntry hostEntry = Dns.GetHostEntry("80.0.0.1"); Var name = hostEntry.HostName; it gives me the name of a global Internet domain (hari-core-2a-xe-800-0.network.virginmedia.net), not the name of my local host. How can I get the right name of the local host. I know that there are reserved domains like 10.0.x.x that can be used with LANs, but I don't want to change the LAN gateway. If I can change it in my LAN, I

问题 Here's the deal. Basically I've got multiple domains, and I would like one of the domains to point to the regular base of the site, but the other domains to point to a subsection of the site without modifying the url in the address bar. The idea is that each of the extra domains are branded for their section. Example: www.domain.com Top level of site www.domain2.com points to www.domain.com/abc www.domain3.com points to www.domain.com/def etc. Also note that in the example 'abc' and 'def' are