Redhat Linux 9 Lab: Exercise 13-1 Using Live Log Monitoring and logger
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Red Hat Enterprise Linux Administration
https://www.youtube.com/playlist?list=PLIpLw6v7Z1qnIUiJipjgYEHwxF16TZbCN
2023 08 15 07 25 48
Exercise 13-1 Using Live Log Monitoring and logger 1. Open a root shell. 2. From the root shell, type tail -f /var/log/messages. 3. Open a second terminal window. In this terminal window, type su - student to open a subshell as user student. 4. Type su - to open a root shell, but enter the wrong password. 5. Look at the file /var/log/messages. You see an error message was logged here. 6. From the student shell, type logger hello. You’ll see the message appearing in the /var/log/messages file in real time.
7. In the tail -f terminal, press Ctrl-C to stop tracing the messages file. 8. Type tail -20 /var/log/secure. This shows the last 20 lines in /var/log/secure, which also shows the messages that the su - password errors have generated previously.
Видео Redhat Linux 9 Lab: Exercise 13-1 Using Live Log Monitoring and logger канала Le Hoang Long Long
Red Hat Enterprise Linux Administration
https://www.youtube.com/playlist?list=PLIpLw6v7Z1qnIUiJipjgYEHwxF16TZbCN
2023 08 15 07 25 48
Exercise 13-1 Using Live Log Monitoring and logger 1. Open a root shell. 2. From the root shell, type tail -f /var/log/messages. 3. Open a second terminal window. In this terminal window, type su - student to open a subshell as user student. 4. Type su - to open a root shell, but enter the wrong password. 5. Look at the file /var/log/messages. You see an error message was logged here. 6. From the student shell, type logger hello. You’ll see the message appearing in the /var/log/messages file in real time.
7. In the tail -f terminal, press Ctrl-C to stop tracing the messages file. 8. Type tail -20 /var/log/secure. This shows the last 20 lines in /var/log/secure, which also shows the messages that the su - password errors have generated previously.
Видео Redhat Linux 9 Lab: Exercise 13-1 Using Live Log Monitoring and logger канала Le Hoang Long Long
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15 августа 2023 г. 16:30:00
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