protocol number

1. Define interesting trafficFor example, access-list 101 permit IP 10.0.1.0 0.0.255 10.0.2.0 0.0.0.2552, Ike Phase 1The purpose of Ike Phase 1 is to identify the IPSec peer and establish a secure channel between the peer so that Ike can exchange

From: http://blog.163.com/pizi98@126/blog/static/268128912009136358565/   In the Linux environment, data frames are directly sent and received from the link layer (MAC). The libpcap and Libnet dynamic libraries can be used to receive and send data

MTU: Maximum Transmission Unit (MTU) refers to the Maximum data packet size (in bytes) that can be passed on a layer of a communication protocol ). The maximum transmission unit parameter is usually related to the communication interface (network

Suitable for readers: Intrusion fans, network administrators, and black machine fans Prerequisites: C basic syntax Liu: backdoors are an eternal topic for hackers. More and more people are paying attention to server security after the hacking of

Java TCP, socket, Mina What is socket TwoProgramData exchange is achieved through a bidirectional communication connection. one end of this bidirectional link is called a socket. Socket is usually used to connect the customer and the service

PHP Network Functions Overview checkdnsrr-DNS traffic checks for the specified host (domain name) or IP address closelog-Turn off System log links define_syslog_variables-Initialize all syslog-related variables DNS_CHECK_RECORD-CHECKDNSRR

This article mainly introduced the PHP network Operation function Summary, this article has enumerated such as GETHOSTBYADDR, gethostbyname, Header_remove, Http_response_code, Ip2long and so on network frequently uses the function, Need friends can

Kernel version: 2.6.34 Realize the idea: The flow of messages in the network protocol stack, for the reception, is the message of the process of shelling, because the message is known as input, as long as the resolution of the protocol number, for

MTU: Communication term Maximum Transmission unit (Maximum transmission UNIT,MTU) is the maximum packet size (in bytes) that can be passed on a layer of a communication protocol. Maximum Transmission Unit This parameter is usually related to the

Linux below getsockopt/setsockopt function description Function Description:Gets or sets the options associated with a socket. Options may exist in multi-tier protocols, and they always appear on the topmost sockets layer. When you manipulate

I. Introduction of LVMLVM (Logical Volume Manager) is a logical Volume manager for Linux kernels and is a mechanism for partition management of disks in Linux environments. Introduce several nouns about LVM first1, PV (physical volume) can be a disk,

Transferred from: http://blog.csdn.net/zhonglinzhang/article/details/9183229Function Description:Gets or sets the options associated with a socket. Options may exist in multi-tier protocols , and they will always appear on the topmost socket layer.

*/$ Hostname = gethostbyaddr ($ _ server ['remote _ addr ']); // obtain the Host NameEcho $ hostname; // output result // $ Hosts = gethostbynamel ('localhost'); // obtain the IP address listPrint_r ($ hosts); // output Array // $ Protocol = 'tcp ';

In the Linux environment, data frames are directly sent and received from the link layer (MAC). The libpcap and Libnet dynamic libraries can be used to receive and send data frames respectively. Although it has been widely used, it still has many

Antpower All Rights Reserved 2003 Technical Articles Http://www.antpower.org 1st pages 14 pages Antpower-Technical article Introduction to three common IP packet sending tools Lang Guojun, an ambitious member of

Int setsockopt (Socket s,Int level,Int optname,Const char * optval,Int optlen); S (socket): point to an open set Interface DescriptionLevel: (level): Specifies the option code type.Sol_socket: basic set of interfacesIpproto_ip: IPv4 InterfaceIpproto_

This article introduces the kernel section of Bluetooth protocol stack bluez which implements the hid function in Linux. In Linux kernel, the implementation code of bluez for HID is in the/NET/Bluetooth/hidp folder, which includes three files: sock.

PHP network operation function Summary This article mainly introduces the summary of PHP network operation functions. This article lists frequently used functions in networks such as gethostbyaddr, gethostbyname, header_remove, http_response_code,

The main body of Oracle functions is as follows: Create or replace function fn_get_agmt_bal (p_agmt_no varchar2)RETURN NUMBER ISV_bal NUMBER: = 0;-- If dbms_output takes effect during SQL/PLUS execution, run [SET SERVEROUTPUT ON] first

Computer Network interview questions, computer network questions 1,OSI Layer-7 protocol,Layer-4 TCP/IP protocol,Five-Layer Protocol mentioned in instructor Xie xiiren's online textbookComparison Note: (1) OSI's layer-7 protocol is only a