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    Testing the knowledge on iptables and firewalld

    I want to test my knowledge on iptables and firewalld. Prompt online tests.
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    Journalctl. What kind of journald setting is more correct?

    Deeply sorry. If the log in /var/log/journald. How to make access limited. I do not want everyone to copy the log to the local disk. But at the same time I want the user to see their logs.
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    Journalctl. What kind of journald setting is more correct?

    Is the journald database in one file? If in one file. Why do everyone have access to reading?
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    Journalctl. What kind of journald setting is more correct?

    Why does any user have full access to the database journald? I can not understand the meaning !!!
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    Journalctl. What kind of journald setting is more correct?

    If I understood you correctly. The logging configuration must go through the configuration file.
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    Journalctl. What kind of journald setting is more correct?

    journald allows you to configure yourself through a configuration file or command line. Configuration file: SystemMaxUse = - the maximum amount that logs can occupy on the disk; SystemKeepFree = - the amount of free space that should remain on the disk after saving logs; SystemMaxFileSize = -...
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    I can not understand the command from the systemd?

    journalctl --since "tomorrow" By idea to show magazines from tomorrow. As it is illogical. Tell me what is the essence of the team with the key tomorrow?
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