user terminal

A Broadband Network Access Switch usually needs to be directly connected to a user terminal. Once the user terminal is infected with the worm virus, a virus attack will seriously consume bandwidth and switch resources, and even cause network

Due to the importance of multimedia services, the softswitch system initially considered support for multimedia business applications from several main aspects. First, in terms of the network structure, the processing and calling of multimedia

[Switch] It is useful for linux signal programming: Number of Linux signals-Linux general technology-Linux programming and kernel information. For details, refer to the following. Http://www.xxlinux.com/linux/art... 07-10-30/11340. html 1 ~ The 31

Referenced from: http://blog.csdn.net/yefan2222/article/details/6198098Http://baike.baidu.com/view/1628025.htm?fromtitle=http&fromid=243074&type=syn1.HTTP protocolThe basic protocol for Internate is TCP/IP (Transmission Control Protocol and Internet

There are many things worth learning about access switches. Here we mainly introduce the risks and Countermeasures Faced by broadband access switches. Now, the development of broadband access switches has encountered many problems, especially

When a viewer accesses a webpage, the browser of the viewer makes a request to the server where the page is located. When a Web page is received and displayed by the browser, the server on which the page resides returns a message header (server

Analysis of password control security technology and attack examples The password control is a common control. This article mainly introduces some implementation and attack ideas of the security password control. 1. Comparison of the physical

General considerations A telnet connection is used to transmit data through the transmission control protocol. The telnet protocol is based on the following three ideas: first, the concept of the network virtual terminal, second, the method of

1. Introduction to daemon Daemon processes are the background service processes in Linux. It is a long-lived process, usually independent of the control terminal and periodically executes a task or waits to process some events. Daemon is often

The telnet application not only facilitates remote login, but also provides hackers with another intrusion method and backdoor. However, while enjoying the convenience that Telnet brings to you, do you really know about Telnet? 2. Remote

Wait FunctionsWhen a process ends normally or abnormally, the kernel sends a message to its parent process. SichldSignal. The parent process can ignore the signal (which is the default action by the system) or provide a signal processing program

6.3 Interactive Shell * What is an interactive shell? What makes a Shel interactive.* Is it an interactive shell? How to determine whether a shell is interactive.* What are the differences between Interactive Shell and interactive shell? 6.3.1 what

1. sighup SignalIn UNIX, the process organization structure is session. It contains one foreground process group and one or more background process groups. A process group contains multiple processes. A session may have a session first process, and

Use the kill-l command on the terminal to display all signals.$ Kill-l1) sighup2) SIGINT 3) sigquit 4) sigill5) sigtrap 6) SIGABRT 7) sigbus 8) sigfpe9) sigkill 10) SIGUSR1 11) SIGSEGV 12) sigusr213) sigpipe 14) sigalrm 15) sigterm 16) sigstkflt17)

Daemon is a special process running in the background. It is independent of the control terminal and periodically executes a task or waits to process some events. Daemon is a useful process. Most Linux servers are implemented using daemon. For

The second parameter of the signal installation function sigaction (int signum, const struct sigaction * Act, struct sigaction * oldact) is a pointer to the sigaction structure (the struct name is the same as the function name, do not confuse it ).

$ Kill-l1) sighup 2) SIGINT 3) sigquit 4) sigill5) sigtrap 6) SIGABRT 7) sigbus 8) sigfpe9) sigkill 10) SIGUSR1 11) SIGSEGV 12) sigusr213) sigpipe 14) sigalrm 15) sigterm 16) sigstkflt 17) sigchld18) sigcont 19) sigstop 20) sigtstp 21) sigttin22)

Original article link Reference Http://baobaoyangzhou.blog.163.com/blog/static/117831250201241232756488/ Http://wenku.baidu.com/view/5e5438186bd97f192279e964.html Index GPROF usage Usage notes Additional reading  

Table, color Lookup (clut) color search list Table, File Allocation (fat) file configuration table Table, Index Table Table, Interrupt Descriptor (IDT) interrupt description list Table, Lookup (LUT) search list Table, periodic table Table,

The following content is reproduced from http:// OS .51cto.com/art/200910/158639.htm 1. KillPurpose: kill a process based on the process number.Usage: Kill [signal code] process IDExample:[Root @ localhost ~] # Ps auxf | grep httpdNote: Kill-9 to