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Can TCP and UDP sockets use the same port?
...ing connections on the original socket whilst simultaneously servicing multiple clients each of which will be triggering receive events on their own sockets.
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AppInventor2 .keystore 证书文件 - App版本升级的奥秘 · App Inventor 2 中文网
...的生成原理
没啥高深的技术，其实就是Java的工具包 keytool 生成的，命令如下：
keytool -genkey -alias "androidkey" -keystore "debug.keystore" -keyalg "rsa" -storepass "android" -validity 10000 -dname "CN=AppInventor for Android, O=fun123.cn, C=CN"
具体参...
How to configure a HTTP proxy for svn
... @ErikMitchell: Create two versions of the config file and scripts which allow you to switch. Read your OSs docs how to hook into the network discovery mechanism and execute the correct script when your laptop notices where it is.
– Aaron Digulla
O...
What is SaaS, PaaS and IaaS? With examples
...sk image library, block and file-based storage, firewalls, load balancers, IP addresses, virtual local area networks etc.
Examples: Amazon EC2, Windows Azure, Rackspace, Google Compute Engine.
PaaS (Platform as a Service), as the name suggests, provides you computing platforms which typically incl...
使用虚拟现实和App Inventor进行实验 · App Inventor 2 中文网
...时起，Google 就使用 Cardboard 和全景功能作为 VR 教学工具的基础，让学生可以虚拟游览国家、博物馆，甚至探索水下。结合适当的声音伴奏，这试图使虚拟游览尽可能接近现实。
以下是演示在智能手机上的显示方式，显示了...
How do ports work with IPv6?
Conventional IPv4 dotted quad notation separates the address from the port with a colon, as in this example of a webserver on the loopback interface:
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What is the difference between OpenID and SAML?
...e of federation. In SAML federations, an account should be a 1:1 relationship with a single person with a current relationship with the IdP "asserting" both the user authentication and authorisation. Entities operating IdPs in a federation must comply with governance around account currency and ver...
Mac OSX Lion DNS lookup order [closed]
... the hosts file, I have found that in some circumstances, Lion queries the IPv6 address for a domain if it senses that a domain is unreachable over the IPv4 network.
I discovered this when I noticed some ads that I had never seen before on Snow Leopard because I had redirected the ad domains to 127...
程序员用数据思维教你如何追女生 - 杂谈 - 清泛网 - 专注C/C++及内核技术
...恋爱技能，进行自学
交给你一个项目，遇到不会的开发工具怎么办？学啊！我们程序员拥有超强的自学能力。
要充分利用知识管理，我们不会谈恋爱，但是我们可以收集资源自学啊！我们可以看书啊，我们可以听罗辑思维啊...
Practical non-image based CAPTCHA approaches?
...rflow. This is necessary to prevent bots, spammers, and other malicious scripted activity. We only want human beings to post or edit things here!
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