cname lookup

Today, I changed my domain name resolution for www.it315.org and saw the cname record. Although I know that this record represents an alias, why do I use cname, that is, what is the benefit of using cname? I am a thinker and want to know all the problems I have encountered. So I searched Google and found a good article with the same title as this article, if you

There is a large number of people on the explicit implicit forwarding and CNAME parsing records are not very deep research, do not know what the difference between the two, because all can be a domain name to jump to another domain name, the effect is not exactly the same?First, what is implicit/explicit forwarding?Take http://a.com jump to http://www.dnspod.cn for example.implicit forwarding : Using the IFRAME framework technology, non-redirection te

Ordered table Lookup /* Main function */public class Ordertablesearch {public static void main (string[] args) {int [] a= {0,1,16,24,35,47,59,62, 73,88,99}; System.out.println (Fibonaccisearch (A, 10, 88)); System.out.println (Insertkeysearch (A, 10, 88)); System.out.println (BinarySearch (A, 10, 88));}First, binary search/* binary Find *//* output: 9 */static int BinarySearch (int [] A, int n, int key) {int low, high, Mid;low = 0;high = N;while (L

A recordThe A (Address) record is used to specify the IP address record corresponding to the Host Name (or domain name. You can direct the website server under this domain name to your web server. You can also set a subdomain name for your domain name. In general, a record is the IP address of the server, and a record bound to the domain name tells the DNS that when you enter the domain name, it directs you to the server corresponding to the record set in the DNS Subdomain nameThe sub-domai

How do I set up CNAME records? 1, select the top-level domain name that needs to be set up; 2, click the need to set the CNAME record of the sub domain name, for example, we need to set the domain name record www.oray1.com.cn: 3, after the click, the page will show the relevant domain name record type, select "CNAME record", and then fill in the

The domain name www. blog. comCNAME to 123.xx.com can also be CNAME to 345.xx.com. The server receives the www. blog. com1 request, can the server get the domain name 345.xx.com or 123.xx.com? {Code...} does not exist $ origin? How can I get the $ origi... domain name if it exists? www.blog.comCNAME 123.xx.comAnd possibly CNAME 345.xx.com, The server receives www.blog.com/1The server can obtain the domain n

1. A record is also called IP address pointing. You can set a sub-domain name and point it to your target host address here to find the server through the domain name. Note: · only IP addresses can be used for the target host address type; Additional instructions: 1) wildcard domain name resolution directs all unspecified subdomain names of the domain name to a space. Enter * in "Host Name", "type" as a, "IP Address/Host Name" as the Web Server IP address, and click "add. 2) Implementation of Lo

Because of the reasons for the work, to the CDN principle must have an understanding, although know CNAME record, but not clear its benefits, find an article, feel good, here a little change, and share with you The use of CNAME records, for many sites, multiple domain names, is a very convenient management method. After making an alias record, it is no longer necessary to manage the server's IP changes.A

CNAME and a record (address) difference A record is to parse domain name to Ip,cname is to parse domain name to another domain name. A server can lay out multiple Web sites or multiple domain names, such as such as Domain A----->a record-----> Real Server Domain B (also known as a alias) Domain C (also known as a alias) If b,c at this time also through the form of A record to the real server, th

Tags: discuz io ar on ad EF line as ProgramError code: 1068Multiple primary key definedExecution time:00:00:00:000Transfer time:00:00:00:000Total time:00:00:00:000Workaround:DROP TABLE IF EXISTS Pre_common_syscache;CREATE TABLE Pre_common_syscache (CNAME varchar (+) not NULL,CType tinyint (3) unsigned not NULL,Dateline Int (ten) unsigned not NULL,' Data ' Mediumblob not NULL,PRIMARY KEY (CNAME)) Type=myisam

What is a record?The A (Address) record is used to specify the IP address record corresponding to the Host Name (or domain name. You can direct the website server under this domain name to your web server. You can also set a second-level domain name for your domain name.What is an MX record?The mail route record. You can direct the mail server under the domain name to your own mail server, and then you can control all mailbox settings on your own. You only need to enter the IP address of your se

A (Address) Record Is used to specify the IP address record corresponding to the Host Name (or domain name. You can direct the website server under this domain name to your web server. You can also set a second-level domain name for your domain name. Alias record (cname) It is also called a canonical name. This record allows you to map multiple names to the same computer. It is usually used on computers that provide both WWW and mail services. For ex

What is domain name resolution?Domain name resolution is the process of converting the domain name to the IP address. An IP address is a digital address that identifies your site on the Internet. To make it easy to remember, use a domain name instead of an IP address to identify the site address. Domain name resolution is completed by the DNS server. What is a record?The A (Address) record is used to specify the IP address record corresponding to the Host Name (or domain name. You can direct t

Install net: DNS Module Perl-mcpan-e "Install net: DNS" Script Simulation #!/usr/bin/perluse Net::DNS::Nameserver;use strict;use warnings;sub reply_handler { my ($qname, $qclass, $qtype, $peerhost,$query,$conn) = @_; my ($rcode, @ans, @auth, @add); print "Received query from $peerhost to ". $conn->{"sockhost"}. "\n"; $query->print; if ($qtype eq "A" $qname eq "www.ddos.com" ) { my ($ttl, $rdata) = (3600, "10.1.2.3"); #push @ans, Net::DNS::RR->new("$qname $t

Resolve the SQL Server to focus on the removal (Bookmark Lookup, RID Lookup, Key Lookup), bookmarkrid Preface The previous sections focus on basic content. In this section, we will talk about index performance optimization. When processing big data, we first think of indexes. Once such a problem occurs, we are in a hurry, why are basic skills rarely used for vari

enrolled in September 08, graduated in July 12, and ended my happy and rich college life at the Software Academy. This series is a review of four-year professional course studies, indexed in: http://blog.csdn.net/xiaowei_cqu/article/details/7747205Find algorithmThe lookup algorithm finds a specific target in the existing sequence (list), requiring that each record in the sequence must be associated with a keyword (key) in order to be searched. The

September 08 Admission, July 12 graduation, ended my happy and rich university life in the Software Institute. This series is a review of the four-year professional curriculum study, indexed in: http://blog.csdn.net/xiaowei_cqu/article/details/7747205 Lookup algorithmThe lookup algorithm looks for a particular target in the existing sequence (list), requiring that each record in the sequence must be associ

Recently summed up the principle of the major sequencing algorithm, and the implementation of it, thinking of the search algorithm summed up, today began to summarize the search algorithm.Needless to say, this article starts with the simplest search algorithm, and then complements the complex two-fork search Tree Lookup (BST) and B-tree, the + + tree lookup, and hash lookup.As the name implies, the search i

Objective The previous sections are all about the basics, and we'll talk about index performance optimization in this section, when the large data processing first thought is the index, once encountered such a problem is a rush, all kinds of information, why not usually solid basic skills, we are simple, short content, in-depth understanding, rather than a problem to the box to die , immediately gives the solution, throws the question, then solves the problem, you get has not. Bookmark

C Language Search Algorithm order lookup, binary search (binary find), the recent test to use, the Internet also has a lot of examples, I think I wrote to understand some. Sequential Lookup/*Sequential Lookup order lookups are the exact locations of the same number of given keywords in a known no (or ordered) Order queue. The principle is to have the keyword