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Play Framework SSLopenssl-genrsa-des3-out Host.key 2048Parameter explanation:GenrsaOpenSSL command for generating an RSA key pair-des3Using the 3-des symmetric encryption algorithm to encrypt the key pair, this parameter requires the user to enter a password for encryption during key generation. When you use this key pair in the future, you need to enter the appropriate password. If this option is not added, the key is not encrypted.-outTo save the ge

==NULL) {printf ("Open File error\n"); Continue; } //get a string and continue to get file datamemset (Buffer,0, buffer_size); intLength =0; while(length = recv (newsocket, buffer, buffer_size,0)) >0) { if(Fwrite (Buffer,sizeof(Char), length, FP) length) {printf ("File:%s Write failed\n", file_name); Break; } memset (Buffer,0, buffer_size); } fclose (FP); Close (Newsocket); printf ("File Transfer success!\n"); } close (Server_socket); return 0; }

) Kill_file deallocate an inode and its blocksclri Clear an inode's ContentsFREEI Clear an Inode's In-use FlagSETI Set an Inode's In-use FlagTesti Test an Inode's In-use FlagFreeB Clear a block's In-use FlagSetb Set a block's In-use FlagTestb Test a block's In-use FlagModify_inode, MI Modify an inode by Structurefind_free_block, FFB Find Freeblock (s) find_free_inode, FFI find FreeInode (s) print_working_directory, PWD print current working directoryexpand_dir, expand Expand Directorymknod Creat

first, write it in front.A lot of days did not record SQL learning notes, to persist, firmly believe that every point of progress is to accumulate strength. See a picture today and share it.Through this picture, I see each person standing in their own perspective, feeling is not the same, like learning knowledge, always feel that their understanding is the most unique, sometimes appropriate to share things outTo listen to other people's opinions may m

seconds)4. Conversion between a Date object and a stringTo_dat () and To_char (): Both functions have three parameters, one is the value to convert, one is an optional format mask, and an optional string for the specified languageToSelect To_char (sysdate, ' Yyyy-mm-dd HH24:MI:SS ') from dual;Select To_date (' 20100323 ', ' YYYYMMDD ') from dual;Select Ename, To_char (hiredate, ' ddthmon,yyyy ') from EMPwhere HireDate betweenTo_date (' 1980-01-01 ', ' yyyy-mm-dd ')andTo_date (' 1985-01-01 ', '

Outto disk.(What is a page?) ... Linux uses manages memory in units called pages.So,the KSWAPD process regularly decreases the ages of unreferencedpages...and at the end they is paged out (moved off) to Di SkThe role of the KSWAPD0 process: It is the virtual memory management, responsible for changing the page, the operating system will wake up every certain time kswapd, to see if the memory is tense, if not tense, then sleep, in KSWAPD, there are 2

request.If the server receives the Protocol successfully, return:Ver = 1.1 cmd = ack_addtolist seq = 1130 uin = 415103947 res = 0 9. delete a friend.It is easy to delete friends. If you send the delfromlist command to the server, you can delete users:Ver = 1.1 cmd = delfromlist seq = uin = UN =UN indicates the QQ number of the user to be deleted.If the server receives the Protocol successfully, return:Ver = 1.1 cmd = delfromlist seq = 24514 uin = 415103947 res = 0 10. Change the cur

: // localhost: 3000/events. xml--> 200 OK ( Get http: // localhost: 3000/events/1.xml--> 200 OK (Put http: // localhost: 3000/events/1.xml--> 200 OK (B 0.11 s)Post http: // localhost: 3000/events. xml--> 201 created (Delete http: // localhost: 3000/events/12.xml--> 200 OK (B 0.11 s)Now we have a full API for creating, reading, updating, and deletingEvents via the browser or a remote client program. And we have conven-Tions: a consistent set of URLs that map to a consistent set of actions.This

, followed by the cpp file to be compiled, and specify the file to be output with-o (forgive me for not using any popular compiler as an example ). In this way, the following will appear in the current directory:1. o 2.o 3.oFinally, the programmer also needs to typeLink 1.o 2.o 3.o-o a. outTo generate the final Executable File a. out. The current IDE actually follows this step, but it just automates everything.Let's analyze the above process and see w

decompileObjdump-d a. OutTo obtain the assembly code of the main function: 08048714 8048714: 55 push % EBP 8048715: 89 E5 mov % ESP, % EBP 8048717: 83 E4 F0 and $0xfffffff0, % ESP// Reserved location for the parameters argc and argv of the Main Function 80100001a: 56 push % ESI 80100001b: 53 push % EBX 80100001c: 83 EC 28 sub $0x28, % ESP 80100001f: C7 44 24 1C 01 00 00 movl $0x1, 0x1c (% ESP)// Store 0x1 in the ESP regis

thrown to terminate the program's operation directly.2. Usage of assertionsUsing the global Assert functionThe ASSERT function receives a BOOL expression and a message that appears when an assertion failsASSERT (Index >= 0, "Index must be greater than 0")If index is greater than or equal to 0, continue with the following codeIf index is less than 0, the error message (the black word below) is thrown, terminating the program's operation directlyAssertion Failed:index must be greater than 0ASSERT

-list permit|deny ICMP [type]Access-list permit|deny TCP [port]Example 3:Router (config) #access-list 101 deny ICMP any 10.64.0.2 0.0.0.0 EchoRouter (config) #access-list 101 Permit IP anyRouter (config) #int s0/0Router (config-if) #ip Access-group 101 inExample 3:Router (config) #access-list 102 deny TCP any 10.65.0.2 0.0.0.0 EQ 80Router (config) #access-list 102 permit IP anyRouter (config) #interface S0/1Router (config-if) #ip Access-group 102 outTo