the entire Internet is made up of countless subnets, and when you enter an address from a browser and go back to access resources on another computer, the first step is DNS parsing to get the ip address of another computer. at this point, the first th...
looking at the https process, there is a question: why does https need to use a secret key exchange such as ecdh? keep it simple: the client randomly generates the hash value of the AES secret key AESKey, request data sign encrypt the AESKey+sign...
is analog signal transmission or digital signal transmission used in frequency division multiplexing in the following figure? why is so little bandwidth used? I read in a book that the digital signal transmits voice at 8 bits and takes 8000 samples per ...
when the company s internal network accesses our own background, the connection often times out. However, there is no problem with visiting other websites. As long as we do not use our company s local area network, we can normally access the background...
give me a general description of my problem. switch router IP: 192.168.1.1 wifi router IP:100.23.1.1 (the router uses the switch cable) wifi user assignment IP: 100.23.1.xxx Mobile phone users can access 192.168.1.1 my mac cannot access 192.168.1....
I am a rookie. I also read a lot of http materials on the Internet, but I only saw what he wrote, but I didn t understand what he meant again. The problem is this: currently the cross-domain problem is solved by setting Access-Control-Allow-Origin: *...
1) restore bitstream to frame; 2) decide which path to use to transfer data to the destination; 3) error control; 4) congestion control; 5) flow control; 6) Transmission medium ...
how is the ack determined when the sender sends multiple message segments at the same time under the tcp protocol, and how does the seq determine when the receiver confirms the connection ...
how to use to control the output of the front power supply on the back of the LAN network port of the fixed-weft psw series 30-36 power supply. Thank you for more details. ...
function connect() { var socket = new SockJS( socket ); stompClient = Stomp.over(socket); stompClient.connect({}, function (frame) { setConnected(true); }); console.log("...
win10ftpftp: 192.169.5..., ftp...
my database table user_tree looks like this. This is a left-right value tree, where Level represents the depth of the tree, Lft is the left value, and Rgt is the right value. < table > < tbody > < tr class= "firstRow " > < th width= "147 " > Userid <...
problem description Python flask s web project, which I created in idea, creates an index.html, that references the bootstrap, of the local directory but does not take effect. the path in href is OK if you enter the absolute path, but the relative ...
download a file using the servlet method in action, always reporting an error, and downloading a file is always visited multiple times in action action code like this : I only clicked to download once, but it visited action, twice, but the download...
recently, I was looking at the knowledge of MySQL indexes. When I saw that there was a leftmost principle in combinatorial indexes, I built a simple table to verify it. I encountered something I didn t understand in the process. I would like to ask for...
1 the @ modelAttribute receive parameter is used in the 1 post request, and paramterType is query, in the swagger-ui document. I want to get of type body. 2, code @ ApiModel ( "user description ") public class User { @ApiModelProperty(value="...