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DNS Configuration for domains and subdomains to point to single IP

由 假装没事ソ 提交于 2019-12-12 04:01:47
问题 I have domain my-domain.com, I want to setup (DNS) sub domains to point to my ' PUBLIC IP ' where my website is hosted Currently I have this, setup in DNS: -------------------------------------------------------------- | Domain | Type | Content | ============================================================== | www.my-domain.com | A | 'PUBLIC IP' | -------------------------------------------------------------- and in my website host box, I setup one nginx server block point to my main website

Loading 1 1MB large image (spritesheet) vs loading 100 10KB images

由 自闭症网瘾萝莉.ら 提交于 2019-12-12 03:53:22
问题 Say I have 100 images that are each 10KB in size. What are the benefits of putting all those into a single spritesheet? I understand there are fewer HTTP requests, and therefore less of a load on the server, but I'm curious as to the specifics. With modern pipelining, is it still worth the performance gains? How significant are the performance gains? Does it result in faster load time for the client, as well as less of a load on the server or just the same amount of load time, but less of a

finding out why a webapp is slow when hosted

由 女生的网名这么多〃 提交于 2019-12-12 03:13:54
问题 I have a django web app that uses postgres db.It allows users to login and make some posts which get saved to db and later on the user can list how many posts he made on a particular day etc and list the posts belonging to a particular category etc.While this worked without any delay in my machine,it is taking a lot of time to load each page when hosted on a free host. How do you find out why this is happening?which part of the app should I look first?Is there any meaning in using a profiler

Android Tab Widget won't fill the width of the screen

由 寵の児 提交于 2019-12-12 02:54:23
问题 I'm completely new to Android dev and XML. What I'm trying to do is create 4 tabs at the bottom of the screen, and for the tabs to fill the width of the screen. I have been able to create the 4 tabs at the bottom, but even though the width's are all set to "fill_parent", the tab widget doesn't fill the width. However, in the graphical layout in Eclipse, it shows the widget filling the width. Can anyone help? Code is below. Thanks. <?xml version="1.0" encoding="utf-8"?> <!-- Dublin Bus App -->

Java 实现判断 主机是否能 ping 通

由 不羁岁月 提交于 2019-12-12 02:16:21
代码实现如下： import java.io.IOException; import java.net.InetAddress; import java.net.UnknownHostException; /** * Created by Miracle Luna on 2019/12/10 */ public class PingHost { public static void main(String[] args) { String host1 = "14.215.178.37"; String host2 = "www.baidu.com"; ping(host1); ping(host2); } /** * 判断主机地址能不能 ping 通，此处主机地址可以域名或者IP * @param host * @return */ public static void ping(String host) { try { InetAddress inetAddress = InetAddress.getByName(host); boolean reachable = inetAddress.isReachable(5*1000); if(reachable) { System.out.println("ping success. Host name: " +

Is it possible to get the host in Application _Start?

由 南楼画角 提交于 2019-12-12 01:37:25
问题 I have a website with multiple host names bound to it. Is it possible to find out in Application_Start() which host is being used? I understand that I don't have a request at this point so I'm thinking probably not, however I know that each host through which the application is accessed will run under a new app pool. So just wondering if there's anything I can query in IIS that might tell me what hostname is being used with the current app pool? 回答1: Is it possible to find out in Application

Host UDP Multicast Online, possible?

由 老子叫甜甜 提交于 2019-12-12 01:09:28
问题 I have made a server that uses UDP multicast sockets. I am able to run the server on my local host and try with as many clients as I want. The problem is that i'm new to UDP and multicast and now I need to connect to another pc using the internet. For example: group = InetAddress.getByName(sendAdd); buf = senddata.getBytes(); packet = new DatagramPacket(buf, buf.length, group, senderPort); Is there anyway to host the UDP multicast server online? What InetAddress should I use in that case? 回答1

zabbix-api，待完善

由 空扰寡人 提交于 2019-12-11 21:04:25
获取zabbix登录认证字符串（必须） curl -X POST -H 'Content-Type: application/json' -d '{"jsonrpc":"2.0","method":"user.login","params":{"user":"admin","password":"zabbix"},"auth":null,"id":0}' http://192.168.74.133/api_jsonrpc.php ``` 返回值 { "jsonrpc": "2.0", "result": "4f4a647dbb6d2d31a345fce2977425c5", "id": 0 } ## 获取所有主机信息,关于selectInterfaces的回参可以在https://www.zabbix.com/documentation/3.4/manual/api/reference/hostinterface/get中查找 curl -H "Content-Type: application/json-rpc" -d '{"jsonrpc":"2.0","method":"host.get","params":{"output":["hostid","host"],"selectInterfaces":["interfaceid","ip"]},"id":0,"auth":

Need recommendation for image hosting with API access [closed]

由 倾然丶 夕夏残阳落幕 提交于 2019-12-11 20:37:29
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 7 months ago . Working on the IOS application that needs to store images and possibly short videos via API and be able to retrive them. currently using heroku for data, but was hoping someone can recommend an image hosting provider with existing api's capability. looked into imgur.com, looks ok for testing, but it seems it's

http协议解析

由 妖精的绣舞 提交于 2019-12-11 18:45:54
HTTP是一个属于应用层的面向对象的协议，由于其简捷、快速的方式，适用于分布式超媒体信息系统。它于1990年提出，经过几年的使用与发展，得到不断地完善和扩展。目前在WWW中使用的是HTTP/1.0的第六版，HTTP/1.1的规范化工作正在进行之中，而且HTTP-NG(Next Generation of HTTP)的建议已经提出。 HTTP协议的主要特点可概括如下： 1.支持客户/服务器模式。 2.简单快速：客户向服务器请求服务时，只需传送请求方法和路径。请求方法常用的有GET、HEAD、POST。每种方法规定了客户与服务器联系的类型不同。由于HTTP协议简单，使得HTTP服务器的程序规模小，因而通信速度很快。 3.灵活：HTTP允许传输任意类型的数据对象。正在传输的类型由Content-Type加以标记。 4.无连接：无连接的含义是限制每次连接只处理一个请求。服务器处理完客户的请求，并收到客户的应答后，即断开连接。采用这种方式可以节省传输时间。 5.无状态：HTTP协议是无状态协议。无状态是指协议对于事务处理没有记忆能力。缺少状态意味着如果后续处理需要前面的信息，则它必须重传，这样可能导致每次连接传送的数据量增大。另一方面，在服务器不需要先前信息时它的应答就较快。 一、HTTP协议详解之URL篇 http（超文本传输协议）是一个基于请求与响应模式的、无状态的、应用层的协议
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