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Open Online education platform EdX opened in June this year, when the Google group method "clean install on Ubuntu Server 12.04" in a brand new VPS installed A, although the final installation was successful, but also spent some trouble, Finally, the overall impression of the edx system is somewhat bloated, dependent on too much, not too lightweight. A few days ago a friend of Peking University in the insta

Premise:1. Install Ubuntu2. use vagrant+virtualbox to build the EdX Developer Stackon ubuntn and to successfully access3. Pycharm-3.4.1 is installed and activated successfully under Ubuntu4. future development in Ubuntu environmentPreparatory work:1. convert path to native /devstack/2. turn on vagrantand enter the command:Vagrantup3. using ssh connection vagrant, enter the command:Vagrantssh4. give the edxapp account A password, enter the command:SU

After practicing for several days edx Devstack, found himself e is still so poor, if and I like, continue to look down, otherwise you can gently drift over ~1. Run the edx devstackCd/devstackVagrant upVagrant SSH(The above should be more familiar with:)This article refer to Https://github.com/edx/edx-platform/wiki/Inte

Recently, due to work, an open EdX instance was installed in Ubuntu virtual machine on Azure, and the installation process encountered a lot of problems, and learned different knowledge in the process of finding the answer from the Internet.Create an authentication certificate file for SSHWhen connecting to an Ubuntu virtual machine using the Putty (http://www.putty.org/) tool, two options are available for authentication: username + password; Another

Label: Ar c working time r as Rom net 5CATEGORY first, 1. skill category; 2. improvement category; 3. Interest category.I have completed the first six courses of Andrew Ng ml, UW computer network, and dataset cience on Coursera.In the future, the service will be guaranteed to be 25 hours a week, with an average of 2.5-3 hours per working day and 11 hours on weekends. In this way, three courses can be conducted at the same time in less than ten weeks, it also needs to be arranged according to the

Note: During addition calculation, it is actually performed on a 32-bit accumulators, and pay attention to the conversion between types. Data truncation problems generally include ax, BX, CX, Dx. Ax: cumulative latches, Bx: Base latches, CX: Count latches, DX: Data latches Index latches: Si and Di Si: source index storage, DI: Destination index Storage Stack and base latches: SP and BP SP: stacked indicator latches, BP: Base Indicator latches Eax, ECx,

Functions of EAX, ECX, EDX, and EBX registers, ecxebx General registers: AX, BX, CX, DXAX: cumulative latches, BX: Base latches, CX: Count latches, DX: Data latchesIndex latches: SI and DISI: source index storage, DI: Destination index StorageStack and base latches: SP and BPSP: stacked indicator latches, BP: Base Indicator latchesEAX, ECX, EDX, and EBX: extensions of ax, bx, cx, and dx, each of which is 32

x509certificate[] Getacceptedissuers () {throw new Unsupportedoperationexception ();}public void checkclienttrusted (x509certificate[] chain, String authtype)Throws Certificateexception {throw new Unsupportedoperationexception ();}public void checkservertrusted (x509certificate[] chain, String authtype)Throws Certificateexception {This.chain = chain;Tm.checkservertrusted (chain, authtype);}}---get jssecacerts down to jdk/jre/lib/security folder3, get the way to request results (two development

Eax, EBX, ECx, EDX, ESI, EDI, EBP, ESP, etc. are the names of General registers on the CPU in x86 assembly language, and are 32-bit registers. These registers can be viewed as variables in C language. For example:Add eax,-2;// It can be considered that a value such as-2 is added to the variable eax. These 32-bit registers have multiple purposes, but each of them has "expertise" and has its own special features. EaxIt is an accumulator, which is t

From: http://hi.baidu.com/helloembed/blog/item/2fd65453843120511038c21a.html Eax, EBX, ECx, EDX, ESI, EDI, EBP, ESP, etc. are the names of General registers on the CPU in x86 assembly language, and are 32-bit registers. These registers can be viewed as variables in C language. For example: Add eax,-2; // it can be considered to be a value such as-2 added to the variable eax. These 32-bit registers have multiple purposes, but each of them has "experti

Organize from the Internet Eax, EBX, ECx, EDX, ESI, EDI, EBP, ESP, etc. are the names of General registers on the CPU in x86 assembly language, and are 32-bit registers. These registers can be viewed as variables in C language. For example: Add eax,-2; // it can be considered to be a value such as-2 added to the variable eax. These 32-bit registers have multiple purposes, but each of them has "expertise" and has its own special features. Eax is the ac

Assume is s a string of lower case characters.Write A program This prints the longest substring of in s which the letters occur in alphabetical order. For example, if s = ‘azcbobobegghakl‘ , then your program should printLongest substring in

> 4294967295) $ v3 = $ v3-4294967296; Return $ v3; } Function fdr ($ v1, $ v2) { If ($ v1> 2147483647) {$ v1 = floor ($ v1/2); $ v2 --;} $ V3 = $ v1 >>$ v2; // While ($ v3> 4294967295) $ v3 = $ v3-4294967296; Return $ v3; } Function fxr ($ v1, $ v2) { $ V3 = $ v1 ^ $ v2; While ($ v3> 4294967295) $ v3 = $ v3-4294967296; While ($ v3 Return $ v3; } Function z ($ var) { GLOBAL $ var; Print $ var. "=". $ var .""; } Function get_ch ($ url) { $ C1 = 0xE6359A60; $ C2 = 0x9E3779B9; $ Url = "info:". $ url

; //////////////////////////////////////// //////////////////////////Movebitl proc ndec: DWORD, dwmovenum: DWORD MoV eax, dword ptr [ndec]MoV ECx, dword ptr [dwmovenum]SHL eax, ClRETMovebitl endp; //////////////////////////////////////// ///////////////////////////Movebitr proc ndec: DWORD, dwmovenum: DWORD MoV eax, dword ptr [ndec]MoV ECx, dword ptr [dwmovenum]SHR eax, ClRETMovebitr endp; //////////////////////////////////////// ///////////////////////////Bin2dec proc pbin: DWORD ; Argument che

00CE9500 mov dword ptr ds: [95CE00], EAX004417BD. 33D2 xor edx, EDX004417BF. 8BC1 mov eax, ECX004417C1. 8A15 D7CD9500 mov dl, byte ptr ds: [95CDD7] // retrieve bytes Channel Data004417C7. 25 FF000000 and eax, 0FF004417cc. 8bf2 mov ESI, EDX // note that the low 8-bit data of the period will be stored and used as the check bit in the future.004417ce. 8bd0 mov edX,

]; send x address to ecx mov edx, DWORD ptr _II$[EBP]; value of parameter II to register edx mov DWORD ptr [ecx+4], edx; writes the value of the register EAX to the memory at the address 4byte at the beginning of X, which is assigned to the member variable I of x ; 7 : mov eax, DWORD PTR _ THIS$[EBP]; eax the first address of the X object to the regis

. I will paste the specific code (please start from the bottom of the Code ):: 004f4dd1 e84ee1f3ff call 00432f24: 004f4dd6 8b55f0 mov edX, dword ptr [ebp-10]: 004f4dd9 8d4df4 Lea ECx, dword ptr [ebp-0C]: 004f4ddc 8bc3 mov eax, EBX: 004f4dde e8c9010000 call 004f4fac: 004f4de3 8b55f4 mov edX, dword ptr [ebp-0C]: 004f4de6 58 pop eax: 004f4de7 e830f3f0ff call 0040411c: 004f4dec 7576 JNE 004f4e64 : 004f4dee b201

operand, and "B" indicates byte.(One byte); "w" indicates word (2, in bytes); "l" indicates long (4, in bytes ).When Processing Memory operands in INTEL, there are similar syntaxes such:Byte ptr, word ptr, and dword ptr.Example:INTELAT TMov al, blmovb % bl, % alMov ax, bxmovw % bx, % axMov eax, dword ptr [ebx] movl (% ebx), % eaxIn the ATT assembly instruction, the operand extension instruction has two suffixes: One specifying the length of the source operand and the other specifying the lengt

how to discover this fact. Do not "guessTo test Benchmark". G ++ version 4.4.1, compilation parameter-O2-March = core2, x86 Linux system. The Assembly Code Compiled by version 1 is: . L3: Movzbl (% EDX), % ECx Movzbl (% eax), % EBX Movb % BL, (% EDX) Movb % Cl, (% eax) Incl % edX Decl % eax CMPL % eax, % edX JB. l3

Virus program source code instance analysis-example code of CIH virus [2] can be referred to push eax; block table size Push edx; edx is the offset of the virus code block table Push esi; buffer address 　　 The total size of the merged virus code block and virus code block tables must be smaller than or equal to the unused space size. Inc ecx Push ecx; Save NumberOfSections + 1 　　 Shl ecx, 03 h; multiply by