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Before you start For this article, you will need to download and install Google Chrome V19 or later (this example is based on V19). You also need some tools that you can use to edit HTML, CSS, and JavaScript. It would be helpful if you had the experience of using chrome or Chrome extensions. Spend a little time browsing through the Chrome Web Store. Look at the extension provided and try it first, which will provide some background for this article. Why build Browser extensions? There are sev

default VLAN 3 # in Terface gigabitethernet0/0/21 port link-type access port default VLAN 3 # interface GIGABITETHERNET0/0/22 nbs P;port link-type access port default VLAN 3 # interface GIGABITETHERNET0/0/23 port link-type access port Default VLAN 3 # interface GIGABITETHERNET0/0/24 port link-type Access # interface NULL0 # snmp-agent snmp-agent Lo Cal-engineid 800007db034846fb898260 snmp-agent sys-info location Xiamen China snmp-agent sys-info version v3 # User-interf Ace Con 0 authentiCation-

]#/mysql_install_db \\>--basedir=/usr/local/mysql \\>--datadir=/usr/local/mysql/data \\>--user=mysqlInstalling MySQL system tables ...OkFilling Help Tables ...OkStart the service[[Email protected] ~]# service mysqld startStarting MySQL ... success![Email protected] ~]# NETSTAT-ANUTP | grep mysqldTCP 0 0 0.0.0.0:3306 0.0.0.0:* LISTEN 28170/mysqldSet the password (use your own security script here)[Email protected] ~]# mysql_secure_installation......Set root Password? [y/n]New password:1Re-enter N

" +rows+ "line"; }//http://localhost:8888/updateuserpassword?id=1password=111 @GetMapping ("Updateuserpassword") public Strin G Updateuserpassword (int id,string passWord) {int rows= jdbctemplate.update ("update USER SET Pass_word =?") WHERE ID =? ", Password,id); Return "executes into"+rows+" line "; }//http://localhost:8888/deleteuserbyid?id=1 @GetMapping ("Deleteuserbyid") public String Deleteuserbyid (int id) { int rows= jdbc

") public String CreateTable () {String sql = "CRE ATE TABLE ' user ' (\ n "+" ' id ' int (one) not NULL auto_increment,\n "+" ' user_name ' varchar (255) Default null,\n "+" ' pass_word ' varchar (255) Default null,\n "+" PRIMARY KEY (' id ') ) \ n "+") ENgine=innodb auto_increment=7 DEFAULT charset=utf8;\n "+" \ n "; Jdbctemplate.execute (SQL); Return "Create user table succeeded"; }//http://localhost:8888/saveusersql @GetMapping ("Saveusersql") public String Saveusersql () {String

Label:Classification learning is advantageous to the physical and chemical knowledge, the approximate SQL injection is divided into three kinds:1.BealeanBase2.TimeBase3.ErrorBase1. From the simplest, Boolean-based types are the most common SQL injection methodsSelect username, password from tb_admin where username= User and password = Pass;In this case, if the extracted validation data is used, there will be a hole in the Boolean injection specifically as follows' Select username, password from

test and filter the parameters to be assembled into SQL statements.Common scenariosThe following is a user login scene to explainNow we have a user table in our database (T_user), assuming that there are only two elements in the table, the user name and password, respectively.Then in the Web application, generally in the user login, the method of verification is generally through the account and password to get the data table in the existence of such a record, the presence of the user, the abse

Example1:SELECT * from users where username= ' $username ' and password= ' $password 'Test data:$username = 1 ' or ' 1 ' = ' 1$password =1 ' or ' 1 ' = ' 1SELECT * from users where username= ' 1 ' or ' 1 ' = ' 1 ' and password= ' 1 ' or ' 1 ' = ' 1 'If the parameter value is passed to the server by the Get method, the access request is:Http://www.example.com/index.php?username=1 '%20or%20 ' 1 '%20=%20 ' 1password=1 '%20or%20 ' 1 '%20=%20 ' 1The SQL st

postgres-s-F testdb11.sql TestDb1E:\>psql-u testrole2-f testdb1.sql TestDb2 >a.txt 2>1Password for user TestRole2:When importing, using-u TestRole2 often have a lot of permissions enough to successfully import the owner of the related database object, so it is best to use Super User-U postgres:E:\>psql-u postgres-f testdb1.sql TestDb2 >a.txt 2>1Do not dump permissions option:-XE:\>pg_dump-u postgres-x-s-f Testdb12.sql TestDb1Testdb12.sql a few lines