Further reading

• You can get more info about the CentOS distributions such as installing, configuration best practices, and so on, by checking out the following: https://www.centos.org.
• The following website gives you a lot of useful tips and best practices from users in the Linux community, particularly for Debian distributions such as Ubuntu: https://askubuntu.com.
• Finally, this last link gives you general information that relates to various commands that work on both CentOS and Ubuntu. You can post your questions here, and other community members will respond: https://www.linuxquestions.org.