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Can you explain the HttpURLConnection connection process?

...ouse to say "Hey, is it okay if I come over and borrow that pair of vice grips?" and your friend establishes the handshake by saying, "Sure! Come and get it". Then, at that point, the connection is made, you walk to your friend's house, knock on the door, request the vice grips, and walk back to you...
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HTTP headers in Websockets client API

... field can be specified. Longer answer: There is no method in the JavaScript WebSockets API for specifying additional headers for the client/browser to send. The HTTP path ("GET /xyz") and protocol header ("Sec-WebSocket-Protocol") can be specified in the WebSocket constructor. The Sec-WebSocket-...
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XAMPP, Apache - Error: Apache shutdown unexpectedly

... below and change it into this one: #Change this to Listen on specific IP addresses as shown below #to prevent Apache from glomming onto all bound IP addresses. #Listen 0.0.0.0:80 #Listen [::]:80 Listen 80 # Dynamic Shared Object (DSO) Support Save it (Ctrl + S) After tha...
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Excel RTD(Excel Real-Time Data)实时刷新数据技术 - C/C++ - 清泛网 - 专注C/C++及内核技术

...,DisconnectData将被调用,在这里,可以释放对这个主题的监控,并不再为其获取新数据。 Heartbeat 确定RTD Server是不是依然可用,0和负数代表不可用,1代表可用。Excel会调用此方法确定服务是否断连。 RefreshData(TopicCount) TopicCount...
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How to make connection to Postgres via Node.js

...e birth year: %d", row.birthday.getYear()); //dates are returned as javascript dates console.log("Beatle height: %d' %d\"", Math.floor(row.height / 12), row.height % 12); //integers are returned as javascript ints }); //fired after last row is emitted query.on('end', function() { client.end...
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Is either GET or POST more secure than the other?

...ogs Proxy servers are likely to log GET URLs in their entirety, without stripping the query string. POST request parameters are not normally logged. Cookies are unlikely to be logged in either case. (example) This is a very weak argument in favour of POST. Firstly, un-encrypted traffic can be logged...
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Is there a good reason I see VARCHAR(255) used so often (as opposed to another length)?

In multiple courses, books, and jobs, I have seen text fields defined as VARCHAR(255) as kind of the default for "shortish" text. Is there any good reason that a length of 255 is chosen so often, other than being a nice round number ? Is it a holdout from some time in the past when there was a go...
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How do I use pagination with Django class based generic ListViews?

..._data() df = pd.DataFrame(list(self.model.objects.all().values())) ipc = df.groupby('ip')['ip'].count().sort_values(ascending=False) urlc = df.groupby('url')['url'].count().sort_values(ascending=False).to_dict() ipc = tuple(ipc.to_dict().items()) urlc = tuple(urlc.items()) ...
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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. share | improve this answer | ...
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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...