readme rst

How to perform the three-way handshake of SYN, FIN, ACK, PSH, RST, and urg tcp in TCP Packets: the sender sends a packet with SYN = 1, ACK = 0 to the receiver, this is the first handshake between requests. If the receiving end receives the request and allows the connection, it will send a packet with SYN = 1, ACK = 1 to the sending end and tell it, the sender can send a confirmation packet, which is the second handshake. Finally, the sender sends a SY

1.RST identification bitThe rst represents the reset, which is used to close the connection abnormally, which is indispensable in TCP design. When sending an RST package to close the connection, you do not have to wait for the buffer to be sent out (FIN packet) and send the RST packet directly to the packet that dropp

1, server side close, client side write, causing the server side send RST (server closed socket): The other side has been closed or abnormal termination, but the client side, do not know, this becomes half openWhen the server side is close to the socket, assume that there is no data at the server side of the accept buffer. Then close sends the FIN sub-section, client side if received fin, call the Read function, is returned 0, because Fin received, in

data exchanged over a TCP connection is serial numbered. The Sequence number column in the TCP header includes the sequence number of the first byte in the TCP fragment.*ack: Confirmation FlagThe confirmation number (acknowledgement) column is valid. In most cases, the flag bit is set. The confirmation number (w+1,figure-1) contained in the confirmation Number field within the TCP header is the next expected sequence number, prompting the remote system to successfully receive all data.*

URL Access website (three handshake, four waves) 1) to obtain the corresponding IP address of the domain name, if there is no relevant data in the DNS cache, IE will issue a DNS request to the DNS server to obtain the corresponding IP address of the domain name. 2) Internet Explorer and domain name address to establish a TCP connection, three times handshake 3) HTTP access 4) Disconnect the TCP connection and wave four times Four scenarios for sending

Three conditions for rst generation: 1. The destination is the SYN of a port, but there is no server being monitored on the port; 2. TCP wants to cancel an existing connection; 3. TCP receives a shard on a non-existent connection; Now we can simulate the above three situations: Client: Struct sockaddr_in serveradd; bzero ( serveradd, sizeof (serveradd); serveradd. sin_family = af_inet; serveradd. sin_addr.s_addr = inet_addr (serv_addr); serveradd. s

Python rst File OpenRST is similar to Python Javadoc and Java.If you download someone else's Python source, there is an RST folder, we can turn to HTML after the browser openIndex.rst of an open source project1. Install the Python Sphinx module:Pip install Sphinxpip install-i http://pypi.douban.com/simple/sphinx_rtd_theme--trusted-host pypi.douban.comDirectory of 2.build output HTMLGo to the doc's parent fo

In the TCP layer, there is a flags field that has the following identifiers: SYN, FIN, ACK, PSH, RST, URG.The five fields that are useful for our daily analysis are the previous one.What they mean is:SYN indicates a connection is established,Fin means close the connection,ACK indicates a response,PSH indicates data data transfer,The RST indicates a connection reset.Where ACK is likely to be used in conjunct

In the "in-depth understanding of parallel programming" in the group, a Millet brother asked a question, server a contracted to the server b,seq is 1, but in the case of failure to receive Server B message reply, sent aRST, but in the RST message, the corresponding SEQ is 1461, a bunch of people are guessing, why seq jumps, because at that time only saw half of the picture, so I let him send the complete message out after Ifound that the

Several TCP states play a role in our analysis. On the TCP layer, there is a FLAGS field, which has the following identifiers: SYN, FIN, ACK, PSH, RST, and URG. The preceding five fields are useful for our daily analysis. Their meanings are: SYN indicates establishing a connection, FIN indicates closing the connection, ACK indicates a response, PSH indicates DATA transmission, RST indicates that the connect

In the TCP layer, there is a flags field that has the following identifiers: SYN, FIN, ACK, PSH, RST, URG. The five fields that are useful for our daily analysis are the previous one. What they mean is: SYN indicates a connection is established, Fin means close the connection, ACK indicates a response, PSH indicates data data transfer, The RST indicates a connection reset. Where ACK is likely to be used in

A TCP rst attack is also known as a forged TCP reset message attack, which closes a TCP session connection by changing the "reset" bit bit (0 to 1) in the flag bit of the TCP protocol header.First, A is a Kali fighter, B is drone (Win2000), and C is a server (Ubuntu). Where the IP address of the server is as followsWe use drone B to establish a 23 port connection with C, using the Telnet command At this point, we start the Wireshark in a, to monitor

Bloggers have been looking for a long-time RST editor. Looking back, the original atom this powerful editor already has plugin support rst edit.This requires a machine installation Pandoc,mac installation as follows:Brew Install PandocThen login atom, enter the configuration interface;Search for Pandoc on the plugin,650) this.width=650; "src=" http://s4.51cto.com/wyfs02/M00/79/A7/wKioL1aXYX3DoS6IAADp7NYzuTw