Training Notes - September 11

kail linux vm tools mounting method:
    1. Virtual Machine top bar "virtual machine (M)" --- "to install VMware Tool (T)";
    2. The desktop appears a small disk, titled "VMware Tools", double-click the point to open;
    3. unzip it to your desktop or elsewhere, and to extract the right place "to open a terminal (E)";
    4. Enter "./vmware-install.pl", the transport has been, until completion;
    5. Enter "reboot" restart the virtual machine;
    6. Type "apt-get install open-vm-tools-desktop fuse", prompt enter "yes";
    7. restart, after which you can communicate with the virtual machine host file.
 
Vim / vi editor mode of operation
        Three modes:
            !! Command Mode: vim state in which the file is opened, the: wq save and exit, enter and: q, type: w Save, type: w Force Save, type: q force-quit;
            Input Mode: In the command mode, enter a / i / o to enter edit any
                            a: Enter the start of a cursor
                            i: In the starting position the cursor input
                            o: the cursor next line start input
                            A: the input end of the line where the cursor
                            I: In the beginning of the input line where the cursor
                            O: input cursor on one line, the current first line creates a new blank line
            The bottom of the command mode:
                            When the current in the input mode, press ESC, enter: to enter the bottom of the command mode
                            When the current is in command mode, enter :( directly under the English input method: not :) command mode to enter the bottom of Chinese
Find data in Vim:
        You need to look in command mode
        Input [/ + the character to find], the location of the characters can be displayed, by pressing the enter key to look down n
 
        Replace data:
        :% S / key1 / key2 , key1 first occurrence of each row replace key2
        :% S / key1 / key2 / g - to replace all key1 key2
        : S / key1 / key2 - key1 the cursor line first appears is replaced key2
        : S / key1 / key2 / g in the current row replace all key1 key2
        
        VIM other operating (command mode)
            x delete a character behind the cursor  
            X to delete a character before the cursor
            dd Delete cursor line
            After the cursor ndd Delete n lines
            yy copy cursor line
            P paste the copied data to the next line of the cursor
            P copied data pasted to the cursor on the line
            Undo the last action u
            : Set nu - set the line number
            : Set nonu - cancel the line number
 
 
Modify the Linux root password: sudo passwd root and then enter the account login first enter the current password, then enter the root password
Archive related operations
takes
Tar -cvf fire.tar f1 f2 f3 f1 f2 f3 files packaged into file.tar
package -c
-v display process
-f specifies the file
Tar -zcvf file.tar.gz f1 f2 f3 f1 f2 f3 files packaged as a compressed file.tar.gz
-z format for archive is zip / gz
Tar -zxvf file.tar.gz decompression
-x Extracts
Zip
Zip test.zip f1 f2 f3 f1 f2 f3 file compressed into test.zip
Unzip test.zip decompression
Open multi-terminal shift + ctrl + t
Switching terminal: alt + number
The current lack of user permissions, you need to sudo (give users a temporary root privileges to current operations) or su root / su (need to know the root password)
User management under Linux
User information is stored / etc / passwd, the average user has read access
Real users: change the password, you can log
Pseudo-users: the application will run at runtime some privileges, and use the program name to represent the program, and the presence of / etc / passwd file, the user can not log in directly pseudo
pentest (user name): x (password): 1000 (UID): 1000 (GID): pentest ,,, (description): / home / pentest (home directory): / bin / bash (default parser)
The last change to / sbin / nologin, the user can not log
User passwords are stored in / etc / shadow, under normal circumstances, ordinary users do not have permission to read
pentest (username): $ 6 $ Fq0je7pf $ kDasczSHFj9k1XO2xArIymt8IzDK97jbXjD8XvFvVMohp2RBHMKBuUbHSlR6NBlhh1tFrxe0tujp.fmgW9kKB (password) /: 18150 (last modified time password): 0 (effectively modify the minimum time password): 99999 (maximum time): 7 :::
After three is password policy
Add user:
Useradd [options] username
Plus password:
Passwd username
delete users:
Userdel Username
Users are automatically added by default user name and join the same group
Icq   icq
Root  root
Pentest pentest
            

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Origin www.cnblogs.com/yyhfirstblog/p/11521045.html