Tag : web

First handshake:
The client sets the TCP packet flag SYN to 1 and randomly generates a sequence number value seq=J, which is stored in the Sequence Number field at the beginning of TCP. It indicates the port of the server that the client intends to connect to and sends the packet to the server. After sending, the client enters the SYN_SENT state and waits for confirmation from the s..

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I work for a publishing company that also provides content distribution to their users. In order to access a piece of content the user must be entitled to do so. Traditionally this authorization check has been done with several different ways (most of them legacy, unsecure and, tbh, very ugly). We do support username and password authentication but this is by far the less common way used for gaining access to content. For the sake of this post let’s assume that the only alternative is for a user to reach our product from a company’s internal portal – we call this “Referral acc..

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