sticky session

Author: gnuhpcSource: http://www.cnblogs.com/gnuhpc/ 1. Sticky Bit 1) Act on files: Some Old UNIX systems were used to put executable files in SWAp after the first execution to improve the running speed of the program. It is outdated now. 2) Act on the directory: If the sticky bit of a directory is set, only the owner and root users of this directory can delete and rename the files or subdirectories in the

Three special file system formats:1>. SUIDAction object: Can only function in the binary executable file, that is, it runs itself is a process.Effect: A binary file without suid permissions can be executed depending on whether the current user has permission to execute the file, and after execution, the owner of the process is also the current system user. After being serviced suid, when the file is run, the owner of the process is not the current user of the system, but the owner of the file.Co

Netty Series (iv) TCP unpacking and gluing one, unpacking, and sticky pack issues(1) A small socket buffer problemIn a stream-based transmission, such as TCP/IP, the received data is stored in a socket receive buffer first. Unfortunately, stream-based transmissions are not a packet queue, but a byte queue. Even if you send 2 separate packets, the operating system will not be processed as 2 messages but only as a series of bytes. Therefore, there is no

The example in chapter three is generally no problem with functional testing, but there is a sticky/unpacking problem when the pressure comes up or when a large message is sent.Then you need to use Linebasedframedecoder+stringdecoderClient side request changed to 100 consecutive timesPackage Com.xiaobing.netty.fourth;Import java.net.SocketAddress;Import Org.omg.CORBA.Request;Import Io.netty.buffer.ByteBuf;Import io.netty.buffer.Unpooled;Import Io.nett

Navigation menu: jQuery sticky scrolling navigation bar effect, jquery navigation bar Sticky scrolling is a kind of user experience when the navigation is stuck on the browser during the scrolling process to facilitate website page browsing. Let's take a look at how it is implemented: JQuery's smint plug-in is also a fixed plug-in for navigation menus. When the page is scrolling, the navigation menu will be

#pragma mark--uiscrollviewdelegate agent#pragma mark removes uitableview headerview stickiness (sticky)-(void) Scrollviewdidscroll: (uiscrollview *) ScrollView {cgfloat sectionheaderheight = 40;if (ScrollView. Contentoffset. y Contentoffset. y>=0) {ScrollView. contentinset =uiedgeinsetsmake(-scrollview. Contentoffset. y, 0, 0, 0);}Else if (ScrollView. Contentoffset. y >= sectionheaderheight) {ScrollView. contentinset =uiedgeinsetsmake(-sectionheader

To delete a file, you do not have to have the write permission for the file, but you must have the write permission for the file's parent directory. That is to say, even if you do not have the write permission for a file, but you have the write permission for the file's parent directory, you can also delete the file, if you do not have the write permission for a directory, you cannot create files in the directory. How can a directory be used to allow any user to write files and prevent the user

[Root @ Station home] # ll-D admins/ Drwxrwx ---. 2 root adminuser 1024 APR 9 admins/ [Root @ Station home] # chmod 1770 admins/ [Root @ Station home] # ll-D admins/ Drwxrwx -- T. 2 root adminuser 1024 APR 9 admins/ [Root @ Station home] # chmod-T admins/ [Root @ Station home] # chmod 2770 admins/ [Root @ Station home] # ll-D admins/ Drwxrws ---. 2 root adminuser 1024 APR 9 admins/ [Root @ Station home] # chmod-s admins/ [Root @ Station home] # ll-D admins/ Drwxrwx ---. 2 root adminuser 1024 APR

1. PrerequisitesYou can in peacetime personal contact with the state of the computer, even when the computer owner is not at the time (although the owner is not, or shut down, enter the computer is to password).2. PrincipleUsing the computer to press 5 times a time shift will trigger the sticky key, it will run C:\winows\system32\setchx.exe3.Shift Backdoor Program WritingSave the following content as a. bat suffix file, filename you can take it yourse

Service side: #include Client: #include Run server first, run client again, and enter the string "ABC" in 10 seconds, and wait a few seconds for the server to return data. The results of the operation are as follows:Input a STRING:ABCMessage form SERVER:ABCABCABCThe key to this program is server.cpp line 31st code Sleep(10000); , which allows the program to suspend execution for 10 seconds. During this time, the client sends the string "ABC" three successive times, because the server is b

4 suid: When a file's host has s permission, it means that any user who executes the program is no longer part of its execution, but belongs to the owner of the program file. For the executable file. Example:/USR/BIN/PASSWD2 Sgid:1 Sticky: Files in this directory, only the file owner and root user can be deleted.[[email protected] tmp]# ID user1uid=501 (user1) gid=501 (user1) groups=501 (user1), 504 (gtest) [[email protected] tmp]# ID user2uid=502 (Us

Shift and paste in the notebook, the sticky key setting is disabled, and shift in the notebook In the past, I wiped my laptop's built-in keyboard with a wet rag, and some buttons failed. I thought it was all used in the dormitory. I took the opportunity to buy a mechanical keyboard... At the beginning, I found that a shift operation would be pasted. Baidu said it was a sticky key, but it was not enabled

Linux Special permissions on the file system (SUID, SGID, Sticky)SUID :Any executable program file can be started as a process: depending on whether the initiator has EXECUTE permission on the program file;After initiating as a process, its owner is not the initiator, and the program file belongs to the owner; this mechanism is suid;Permission settings:chmod u+s FILE ...chmod u-s FILE ...Attention:S: The owner of the original has x permission;S: The

Server-side configuration:Importsocket,subprocess,struct fromSocketImport*Server=socket (Af_inet,sock_stream) server.bind (('127.0.0.1', 8080)) Server.listen (5) whiletrue:conn,client_addr=server.accept () whileTrue:Try: cmd=CONN.RECV (1024) ifLen (cmd) = = 0: Breakobj=subprocess. Popen (Cmd.decode ('Utf-8'), Shell=True, stdout=subprocess. PIPE, stderr=subprocess. PIPE,) out=obj.stdout.read ()#bytes TypeErr=Obj.stderr.read ()Print(Len (out+err)) #steps to solve the

By the 3 (in fact, 2) the problem of the pit miserable, there is no problem of missing packets, previously thought that the problem of packet loss is not present.The case of sticky and broken packets is present, these two problems are not afraid, as long as the sending received packet order is not disrupted upside down, everything is good.Easy-to-drop pits: Acceptor.getfilterchain (). AddLast ("ThreadPool", New Executorfilter (Executors.newcachedthrea

This article illustrates the solution to the problem of Golang network socket sticky package. Share to everyone for your reference, specific as follows: See a lot of people ask this question, today wrote an example, hope to help people First of all, what is the sticky bag: Baidu on the more popular saying is that the TCP protocol, the sender sent a number of packet data to receive the receiver to stick in

There is no doubt that we often use the computer in the day-to-day, will be used to some of the functions of the system, so as to ignore the other functions of the system, such as some friends like to watch TV on the internet, but for some of the system's game features have never been used; and some friends like to swim in the game world, And the computer's smooth video viewing is not concerned about. Just like the little Win7 's flagship note feature today, perhaps few friends notice? After all

After we open the sticky rice on the phone, we click on "my", and then we click on the "username" effect shown in the image below. And then after we opened it, we found "account and security." There is a "Baidu wallet" option, we click it to open the entry. In the "Baidu wallet" then we can see a lot of features in this option, and now we just click "Pay Security" and click on it. Go to "pay security." After opening the entry, w

1, we open in the mobile phone "Baidu sticky rice app" and then in the interface after we click on the "pending payment" effect as shown below. 2, then in the Open interface we click on the "Pending payment"-"payment" effect is shown below. 3, to enter the Order Details page, you can view the order of receipt information, and so on, the effect is as shown below. 4, then in this interface we find the "pay cashier" and then choose

Overview: Css Sticky Footer If the page content is not long enough, the footer block is pasted at the bottom of the window, and if the content is long enough, the footer block is pushed down by the content. Implementation method: Css Sticky FooterSummarize: 1, you can change the height of the p tag, to see the position of the bottom of the situation 2, the Padding-bottom value of main and footer of the hei