cname

We are hosting many web applications for our customers. As is obvious they want to use their own domains to refer to those applications, usually they want that any user that either type http://www.customer1.example or http://customer1.example goes to their web application. The situation we are facing is that we need to have the flexibility to change IP addresses in the near future. And we don't want to rely on the customer doing the A record change on their domains. So we thought that using CNAME records will work, but as we find out CNAME records will not work for the root domain. Basically:

创建表和插入数据 1 DROP TABLE IF EXISTS `class`; 2 CREATE TABLE `class` ( 3 `cid` int(11) NOT NULL AUTO_INCREMENT, 4 `caption` varchar(32) NOT NULL, 5 PRIMARY KEY (`cid`) 6 ) ENGINE=InnoDB AUTO_INCREMENT=5 DEFAULT CHARSET=utf8; 7 8 -- ---------------------------- 9 -- Records of class 10 -- ---------------------------- 11 INSERT INTO `class` VALUES ('1', '三年二班'); 12 INSERT INTO `class` VALUES ('2', '三年三班'); 13 INSERT INTO `class` VALUES ('3', '一年二班'); 14 INSERT INTO `class` VALUES ('4', '二年九班'); 15 16 -- ---------------------------- 17 -- Table structure for course 18 -- ----------------------------

If I go to www.example.com which has an image on the page that links to assets.example.com which is a CNAME for assets.example2.com. Will I get the green lock even if assets.example2.com does not have a certificate, but assets.example.com does? Whether your DNS entry uses a CNAME or an A record doesn't matter. What matters is the host name the client is trying to connect to. It must match one of the Subject Alternative Names in the certificate of the server providing that resource (or, failing that, it must match the CN RDN of the cert's Subject DN). If https://www.example.com embeds an image

I am trying to figure out how to get the naked domain for my website to redirect to the www domain. I am using Heroku and have the domain from GoDaddy. Because of Heroku, my A records are already set up as: @: 75.101.145.87 @: 75.101.163.44 @: 174.129.25.170 And my www CNAME points to proxy.heroku.com. I've been looking all over the internet, but can't find a simple, free answer for how I can do this redirect. Some answers discuss using paid services, which I don't want to do, and others talk about going in and modifying Heroku settings, but then don't really give much explanation. Right now,

一.数据定义 1.创建表 CREATE TABLE JS( Tno varchar(7), Tname varchar(10), Tsex varchar(2), Birthday date, Dept varchar(20), Sid varchar(18) ); CREATE table course( Cno varchar(10), Cname varchar(20), Credit SMALLINT, property varchar(10), Hours INT ); CREATE TABLE Sk( Tno varchar(7), Cno varchar(10), Hours int ); create table student( sno char(10) not null PRIMARY key, sname char(8), age NUMERIC(3,0), sex char(2), bplace char(20), polity char(20) ); create table GIRL( sno char(10) not null PRIMARY key, sname char(8), age NUMERIC(3,0) ); create table score( SNO CHAR(10), CNO CHAR(10), score NUMERIC(6,0)