Dear customers of my RHCSA® or RHCE® video courses and/or my Cert Guides, on this site you will find additional training materials.
UPDATED RHCSA EX200 EXAM
Major update to the RHCSA EX200 exam announced by Red Hat, which will be effective October 1, 2020. This is how to prepare.
RED HAT LEARNING PATHS RHEL8
FREQUENTLY ASKED QUESTIONS
I have successfully created an iSCSI target configuration, and verified that I was able to access it, but after a reboot of the iSCSI target server, my entire configuration has disappeared. Do you have any idea what I did wrong?
The configuration that you create relies on the availability of the target server.
So right after creating the configuration using targetcli, use systemctl enable target on the target server.
On a restart, this service looks for the configuration file /etc/target/saveconfig.json.
If however your server is restarted without the target.service being enabled, and you start it manually later on, it will create a new and empty /etc/target/saveconfig.json.
Fortunately, while working in targetcli, backup configurations are created.
To restore the last working configuration, open the targetcli shell, and from there type the restoreconfig command.
It will show you a list of previously (automatically) saved configurations, from which you only have to load the last working configuration to revert to the previous state.
I want to get an overview of all authentication related settings, because I’m getting so confused between nslcd, sssd, krb5 and all the other backends that are used. Is there an option to get an easy overview?
Yes there is! Just use authconfig –test, and you’ll get an exact overview of everything that is configured regarding authentication.
Is there any good documentation about the SQL commands I have to use to create and manage databases?
After logging in to the mysql client, using mysql –u username –p, you’ll get access to the internal documentation. Type help for a generic overview of commands, or type help followed by a specific SQL command to see more details.
For instance, if you want to find out how to use the select command, type help select and you’ll see exactly how to use this command.
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