dns

问题 Need to grep /etc/hosts with a known hostname, and then capture the ip address for the hostname from /etc/hosts. I am not a programmer, and don't know how to go about this. I have very limited experience with regex, but think that this might work somehow. I am not using DNS, just managing with /etc/hosts file. I need to grep the /etc/hosts file with the known hostname, and then capture the IP address for the hosts entry. The host file is standard format: Please help! UPDATE: # Maintenance

问题 Suppose the following: I have a database set up on database.mywebsite.com , which resolves to IP 111.111.1.1 , running from a local DNS server on our network. I have countless ASP, ASP.NET and WinForms applications that use a connection string utilising database.mywebsite.com as the server name, all running from the internal network. Then the box running the database dies, and I switch over to a new box with an IP of 222.222.2.2 . So, I update the DNS for database.mywebsite.com to point to

问题 I can retrieve the logged in user name using NSUserName(), but how do I get the Open Directory "directory domain name" or other domain he is a member of? i.e. similar to the notion in Windows where a logged-in user is DOMAIN\USERNAME, where DOMAIN is his local machine, workgroup or Active Directory domain. 回答1: You may be able to do this with Directory Services. Alternatively, check out the new Open Directory APIs introduced in 10.6; you have a choice between a Core-Foundation-based API and a

问题 I'm getting "Could not resolve host" when I call curl_error($ch) in curl_multi context, the errno is 0 though, and the request is done successfully also(I'm getting the expected response from the remote server). I'm getting this error for all the requests in the curl_multi group, except for only the first request of them which is done without any error messages! (for example if the curl_multi has 10 sub requests attached to it, only the first request will not have the error and the other 9

问题 I am running a website, which you can get to by accessing any of 3 domains: www.abc.com www.asd.com www.xyz.com Will all redirect you to www.abc.com How can I track, from which website do people access www.abc.com in Google Analytics? 回答1: Answering for the sake of those who will come here with the same question. Here is a nice solution: http://lanevance.com/web/web-development/tracking-301-redirects-with-google-analytics/ Summary At the root folder of your website, add a .htaccess file :

问题 Suppose I am retrieving a url as follows: string url = "http://www.somesite.com/somepage.html" HttpWebRequest req = (HttpWebRequest)WebRequest.Create(url); HttpWebResponse resp = (HttpWebResponse)req.GetResponse(); Is there a way I can see the IP address of the destination url? Does it require a separate call? Thanks 回答1: Look at the System.Net.Dns class. You can get a list of IP addresses of the host from the Dns.GetHostEntry() method. 回答2: Although Dns.GetHostEntry() can get you the IP of

问题 I have the DN of a user in Active Directory, I want to get the "NT style" domain\user from this. The sAMAccountname AD property gives me the user part, but what about the domain? Thanks 回答1: You can get it by taking the last part of the user DN ( DC=domain,DC=local ) and adding CN=Partitions,CN=Configuration, before. Then do a subtree search for (&(nCName="DC=domain,DC=local")(nETBIOSName=*)) with CN=Partitions, CN=Configuration, DC=domain, DC=local as the starting point; the entry you get

问题 I would like to mock a domain with everything as usual ( mockDomain(Class) ), but I would like to overwrite one of the domain's methods ( beforeDelete to be specific) with custom logic just for that one unit test. How can this be achieved? 回答1: You can override the beforeDelete method on your domain class using Groovy metaClass. Domain class: class Person { String name boolean deleted def beforeDelete() { println "Deleting Person ${id}" deleted = true return false } } Unit Test: void

问题 I currently have my domain.com assigned to my azure website, but I'd like to know what I need to use subdomains. I suppose I need to create a CNAME at godaddy. But what do I point it to? And how does each subdomain point to each folder in my solution? Do I need web roles for this? I have no clue how to achieve this. Note. I have a shared instance. And I'm already using a custom domain. All I want is to create a folder in my solution, and create apps inside it: Solution < ExampleFolder <

问题 I have build a small helper class for DNS resolving: public class DNSService { private static Properties env; private static final String CNAME_ATTRIB = "CNAME"; private static String[] CNAME_ATTRIBS = { CNAME_ATTRIB }; static { env = new Properties(); env.put(Context.INITIAL_CONTEXT_FACTORY, "com.sun.jndi.dns.DnsContextFactory"); } public static String getCNAME(String host) throws NamingException { return getCNAME(new InitialDirContext(env), host); } private static String getCNAME