2019-11- 13 Linux Learning Summary (Juming Chen)

Hat Enterprise Linux7.41 install Red
1 directly install Linux system by selecting "lnstall Red Hat Enterprise Linux7.4" option of the keyboard arrow keys.
After 2 Press the Enter key to start loading installation language mirroring, select System, click the "Continue" option
3 Click "Select Software" option in the installation interface
4 interface, click to select the "Server with a GUI" radio button and then click the top left corner of the "Finish" button.
5 Return RHEL7.4 system installation main screen, click "Network and Host Name" option, the "Host Name" is set to RHEL7-1, click the top left corner of the "Finish" button and then
6 RHEL7.4 return to the main system installation interface, click "install location" option, click "I want to configure partitions" radio button, then click the top left corner of the "Finish" button
7 to start the configuration partition
/ boot partition size is 300MB
swap partition size is 4GB
/ partition size is 10GB
/ usr partition size is 8GB
/ Home partition size is 8GB
/ var partition size is 8GB
/ tmp partition size is 1GB
return 8 installation interface, click "start installation" button to see the progress of the installation, select here "rOOT password"
9 set the root administrator's password.
10 After installation is complete, click "Restart" button
will restart the system 11 can see the system initialization interface, click the "LICENSE INFORMATION" option
12 Select "I agree to the license agreement" check box, and then click the top left corner of the "complete "button
after 13 return to the initialization interface, click" Finish configuration "option
14 RHEL7.4 virtual machine software in the system after the restart again, select the default language ---- Chinese in the interface, then click the "Forward" button
15 keyboard layout or input method system of choice for the "English" and then click the "forward" button
16 to set the time zone (Shanghai, China), and click the "forward" button
17 to create a local system of ordinary users RHEL7.4, then click "forward" button
18 interface click "start using Red Hat Enterprise Linux Server" button
to reset the root administrator password
1 first "open end" command in the blank, right-click, click, and then enter the cat / etc open a terminal / redhat- release
2 enter "reboot" in the terminal, or click off the upper right button and choose the "reset" button to reboot the system host and Linux boot interface appears, press the key on the keyboard e editing interface into the core
3 in the parameter Linux16 Finally append "rd.break" this line of argument, then press the "Gtrl + X" key combination to run the modified kernel program
4 into the emergency mode of the system. Enter the following command in turn, wait for the system to restart the operation is complete, you can log in to the Linux system using the new password newredhat
network configuration usually includes setting the host name, IP address, subnet mask, default gateway, DNS servers, etc.
RHEL7 There are three kinds Defines the host name
static
transient
flexible