dns

问题 I have a web server with two websites: a & b. a is production. b is testing/staging. Whoever wrote these apps before me relies on Request.ServerVariables("LOGON_USER") which is assigned when the user authenticates against the server via Windows Authentication. On a, this works great, on b there's some weirdness: I get my login prompt, but i can't use [domain]\myusername to login, I can do it with \\myusername though, same passwords (AD based). The IIS configs are identical as far as I can

问题 I'm trying to setup SSL certs with heroku and godaddy. I've successfully created a cert with LetsEncrypt, and have received this message Your certificate has been added successfully. Update your application's DNS settings as follows Domain Record Type DNS Target ─────────────────────── ─────────── ───────────────────────────────────── secure.lockdownjobs.com CNAME secure.lockdownjobs.com.herokudns.com www.lockdownjobs.com CNAME www.lockdownjobs.com.herokudns.com The part I'm struggling with

问题 I have set up a web application on I am running it on my localhost. That is - http://127.0.0.1:8000/. I have set up sub-domains as well. For example, going to http://blog.127.0.0.1:8000/ should take me to the blog part. However, my browser does not recognize this and says server cannot be found. My OS is MACOSx If you want to test subdomains on your local host, you need your browser to resolve multiple subdomains as '127.0.0.1'. The way you do this depends on your OS. If you're using linux,

问题 I wonder if there is a way to use python to resolve a hostname that resolves only in ipv6 and/or for a hostname that resolves both in ipv4 and ipv6? socket.gethostbyname() and socket.gethostbyname_ex() does not work for ipv6 resolution. A dummy way to do that is to run actual linux host command and parse the results. Is there any better way to do that? Thanks, 回答1: socket.getaddrinfo supports IPv6. You just need to set family to AF_INET6 . socket.getaddrinfo("example.com", None, socket.AF

问题 I have the following docker-compose.yml file: version: '3' services: frontend: image: alpine command: tail -f /dev/null networks: - shared - default backend: image: alpine command: tail -f /dev/null networks: - shared - default networks: shared: external: true Based on the file from above I create two projects which use the same network ( shared ) and the same service names ( frontend and backend ): docker-compose -p foo up -d docker-compose -p bar up -d Does the DNS of docker make sure that

问题 I'm pretty new to Amazon instances so any help or advice would be appreciated We host our own webserver, ourdomain.org, that has several subdomains. One of these subdomains, sub.ourdomain.org, is actually pointing to an amazon EC2 instance. The instance is reached through a DNS A record. Everything is working fine but now we want to use SSL. My question is where to install the certificate and how to configure it. I'm thinking we want to do this on the amazon instance but I'm worried that the

问题 I am working on a utility for managing multiple computers in a specified domain (not necessarily the domain the computer the application is running on is a member of) within a specified directory root. The problem I am running into is once I have the collection of computer names from the external AD OU, I am unable to manage based on computer name because of DNS. Is it possible to perform DNS lookup on an external DNS server provided the IP of DNS server and credentials for that domain? Here

问题 I need customers to be able to point their own custom domains to my GAE app. e.g. customersdomain.com -- CNAME --> myapp.com (which in turn points to myapp.appspot.com) I know that I can link a domain to my Google account and then use that domain to serve app engine, but this process does not scale and requires that I have direct access to the customer's domain register/DNS. The only other alternative is to force customers to sign up for Google Apps (why!). Almost all other PaaS make this

问题 How can I lookup DNS records with Indy in Delphi? For example, SRV records, SPF records, TEXT records, etc. I know we can use nslookup directly from Windows, but I want to do this with Indy, or any other Delphi component. I tried searching Google, and I found something like this: function ReverseDNSLookup(IPAddress: String; DNSServer: String = SDefaultDNS; Timeout: Integer = 30; Retries: Integer = 3) : string; var AIdDNSResolver: TIdDNSResolver; RetryCount: Integer; begin Result := '';

问题 I'm implementing the PASV mode in a FTP server, and I send to the client the IP address and port of the data end point. This is stupid because the IP is actually where the client is already connecting, so there ire two options: How could I get the public IP address from a given instance? Not the VIP , but the public one. How could I get the original target IP address that the user used from a Socket object? Considering routers and load balancers in the middle :P An answer to any of this