alienware r4

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Traceroute summary come from CSDN Author:houdong

, it chooses an impossible value as the UDP port number (greater than 30000), which is unlikely to be used by any application of the destination host. Therefore, when the datagram arrives, it causes the UDP module of the destination host to generate a "Port unreachable" error ICMP message. The traceroute program is to distinguish whether the received ICMP error message is "timed out" or "Port unreachable" to determine when the time is over.tracerouteExampleR1#traceroute 10.0.0.2type escape seque

Small and medium network system integration

Small and Medium network system integrationBackground Description:650) this.width=650; "src=" Http://img.my.csdn.net/uploads/201101/2/0_1293972288hRzc.gif "/>company Environment and requirements: 1 , the company has 2 departments, Finance Department, marketing department, and manager's office;2 , in order to ensure that the financial Department of Computer Security, the marketing department is not allowed to access the Finance Department host;3 , the Ministry of Finance can not access the extern

LAB-CCNP BGP Case Study

a full mesh of IBGP peers in each system. Peer R1 and R2 using loopback address, not their directly connected interfaces. Advertise all loopback interfaces to the BGP process, except on R2, where the only loopback advertised should is LOOPBAC K 2. On R2, create a static summary route for the rest of it loopback interfaces nad advertise this static route in BGP. R4 should send a summary route to ITA representing all the

R-Tree Spatial Index

precisely frame the irregular area, so that we construct an area: R8. R8 is clearly characterized by the fact that it is just right to frame all the data in this area. Other areas surrounded by solid lines, such as R9,r10,r12, are the same. In this way, we have a total of 12 most basic minimum rectangles. These rectangles are stored in the child nodes. The next step is to do a senior level of processing. We found that the R8,r9,r10 three rectangles are closest to each other, so you can use a la

H3CTE D Chart Construction

-interface LoopBack0Peer 1.1.1.1 Group inPeer 6.6.6.6 Group inPeer 7.7.7.7 Group inUndo SynchronizationPeer 10.0.0.10 As-number 65001R3BGP 65001Group in InternalPeer in Next-hop-localPeer in Connect-interface LoopBack0Peer 4.4.4.4 Group inPeer 5.5.5.5 Group inUndo SynchronizationPeer 10.2.0.1 As-number 65000R4BGP 65001Network 0.0.0.0Undo SynchronizationPeer 10.0.0.9 As-number 65000Group in InternalPeer in Next-hop-localPeer in Connect-interface LoopBack0Peer 3.3.3.3 Group inPeer 5.5.5.5 Group in

CCNA Study Notes (v)--Dynamic routing Protocol (EIGRP)

) #login----------------------------------------------------R3 (config-line) #int Lo 0R3 (config-if) #ip add 3.3.3.3 255.255.255.0R3 (config-if) #no sh----------------------------------------------------R3 (config-if) #int S0/3R3 (config-if) #ip add 192.168.23.3 255.255.255.0R3 (config-if) #no sh----------------------------------------------------R3 (config-if) #int S0/2R3 (config-if) #ip add 192.168.34.3 255.255.255.0R3 (config-if) #no sh=====================================================

Generate Random Captcha Tool class

); G2d.draw (line); } } /*** Get Random text * *@paramlength [int] captcha size *@paramg [Graphics] Picture Object *@returnString * @case1: A-Z * @case2: Chinese * @default: 0-9*/@SuppressWarnings ("Unused") PublicString Getrandword (intLength,graphics g) {String Finalword= "", firstword= ""; intTempint=0; String[] Array={ "0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "a", "B", "C", "D", "E", "F"}; for(inti=0;i

BBS (php & mysql) full version (eight) _php tutorial

Finished Wish you sucess!! # phpMyAdmin Mysql-dump # http://phpwizard.net/phpMyAdmin/ # # Host: localhost:3306 Databases: Database # -------------------------------------------------------- # # The structure of the data table ' bbs_html ' # CREATE TABLE bbs_html ( ID int (+) DEFAULT ' 0 ' not NULL, UserID varchar () is not NULL, Date1 varchar () not NULL, Title varchar (+) not NULL, Content text not NULL, R1 Int (+) DEFAULT ' 0 ' not NULL, R2 int (+) DEFAULT ' 0 ' not NULL, Number tinyint (4)

Linux 2.6 startup Process analysis __linux

/compressed/vmlinux.lds.in three files, mainly looking at the location of the main segment of the vmlinux.lds.in link file, LOAD_ADDR (_LOAD_ADDR) =0xa0008000, and the location of Text_start (_text, _start) is only set to 0,bss_start (__bss_start) =align (4). The result depends on how the kernel is decompressed, that is, whether the kernel is in memory (RAM) or flash before extracting it, Because of this, our bootloader moves the compressed kernel (zimage) to the 0xa0008000 position of RAM, and

Jlink Debug Error Jlink error:can not read Register solution

register (R15) while CPU is runningJlink Error:can not read register (XPSR) while CPU is runningJlink error:can Not read register 0 (R0) while CPU is runningJlink Error:can Not read Register 1 (R1) while CPU is runningJlink Error:can Not read Register 2 (R2) while CPU is runningJlink Error:can Not read Register 3 (R3) while CPU is runningJlink Error:can Not read Register 4 (R4) while CPU is runningJlink Error:can Not read Register 5 (R5) while CPU is

Comparison between WCDMA and CDMA2000 network structure

standards, WCDMA divided into three relatively clear stage, namely R99, R4, R5. The stage division of CDMA2000 Standard is fuzzy, but it is divided into three stages, namely PHASE0, PHASE1/2, Phase3. This paper mainly discusses the second and third stages of the two modes. 2. WCDMAR4 StageFor both modes, the second phase is the transition to a full IP network. In the second stage, the similarity of the two network structures is very strong, the main

Commonly used arm assembly instructions (1)

0x30008000 is loaded into the R1, and Ldr is preceded by a constant =. (Note the difference with MOV, MOV is #). STR (store) is used to store the value of a register in an external storage space, which is the inverse operation of LDR. STR R0,[R1]; The value of the R0 is credited to the R1 corresponding address space (*R1 = R0). 6.ADDS R0,R1,R2; R0=r1+r2,adds s means to write carry results to CPSR,ADC R5,R3,R4; R5=r3+

BBS (PHP & MySQL) full version (eight)

Finished Wish you sucess!! # phpMyAdmin Mysql-dump # http://phpwizard.net/phpMyAdmin/ # # Host: localhost:3306 Databases: Database # -------------------------------------------------------- # # The structure of the datasheet ' bbs_html ' # CREATE TABLE bbs_html ( ID int () DEFAULT ' 0 ' not NULL, UserID varchar is not NULL, Date1 varchar is not NULL, Title varchar not NULL, Content text not NULL, R1 int () DEFAULT ' 0 ' not NULL, R2 int () DEFAULT ' 0 ' not NULL, Number tinyint (4) DEFAULT ' 0

51 Single chip microcomputer assembly multi-byte 16 (2) binary to BCD code

In single-chip microcomputer often used to 16 (2) into the BCD code, although the C language programming is more convenient, but the assembly is often needed Here is a 24-bit binary to the BCD code for example, where the BCD code is stored in a compressed manner, that is, 4-bit storage of a /* Ingress parameter R1,R2,R3 holds 24-bit binary number, r1-bit maximum 8-bit exit parameter R4,R5,R6,R7 */mov R4

Hands-on implementation of code virtual machines

where a program (custom bytecode) runs. In fact, the virtual machine here is similar to our real processor in interpreting and executing bytecode. Programs on physical machines can run only in a processor, stack, heap, and other environments that execute commands. Therefore, a virtual processor is required first, some registers are required in the processor to assist in computing. The following are the virtual processors I have defined. /** Virtual processor */typedef struct processor_t {int r1

C ++ const qualifier

, for example: int x = 10;double y = 10.4;const int r1 = x;const int r2 = 10;const int r3 = x * 10;const int r4 = y; In the last three cases, r is actually bound with a temporary amount, and the compiler will convert the code into the following: int tmp = y;const int r4 = tmp; At this time, the value of r4 cannot be changed. When the value of y is changed, the

BBS (php & mysql) full version (8)-php Tutorial

Finished wishyousucess !! # PhpMyAdminMySQL-Dump # phpwizard. netphpMyAdmin # HOST: localhost: 3306 database: database # --------------------------------------------- // finish wish you sucess !! # PhpMyAdmin MySQL-Dump # Http://phpwizard.net/phpMyAdmin/ # # HOST: localhost: 3306 database: database #-------------------------------------------------------- # # Data table structure: 'bbs _ html' # Create table bbs_html ( Id int (15) DEFAULT '0' not null, Userid varchar (20) not null, Date1 varch

Relationship between IPv6 and NGN and 3G networks (1)

services, IPv6 Mobile IP technology also enables users to roam between networks in other systems such as wireless networks and WLAN. Due to the importance of IPv6 in the 3G system, the 3GPP standard organization and IFTF jointly set up the IPv6 3G application research team to jointly solve the problem of IPv6 application in 3G. With the in-depth research on the business and the development of the business in the 3GPP R5 stage, in order to meet user requirements, the device developer usually pro

Tutorial on Route redirection for ICMP redirection fields (1)

The ICMP redirection field, used by the router to notify the host of the optimal gateway to the target, is another vro on the data link. Purpose: 1. Verify redirection. 2. The impact of redirection on host data forwarding. 3. Disable the data forwarding process after redirection. Tutorial topology: Experiment Design: 1. R2, R3, R4, and R5 run the RIPv2 protocol. R1 disables the routing function and points the default gateway to R2. 2. the

Generate Chinese characters randomly (extract saved code) and extract Chinese Characters

, 16 );String str_r2 = r [r2]. Trim ();// Code 3rd bitsRnd = new Random (r2 * unchecked (int) DateTime. Now. Ticks) + I );Int r3 = rnd. Next (10, 16 );String str_r3 = r [r3]. Trim ();// Code 4th bitsRnd = new Random (r3 * unchecked (int) DateTime. Now. Ticks) + I );Int r4;If (r3 = 10){R4 = rnd. Next (1, 16 );}Else if (r3 = 15){R4 = rnd. Next (0, 15 );}Else{

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