Book Image

Mastering Ubuntu Server - Fourth Edition

By : Jay LaCroix
4.7 (7)
Book Image

Mastering Ubuntu Server - Fourth Edition

4.7 (7)
By: Jay LaCroix

Overview of this book

Ubuntu Server is taking the server world by storm - and for a good reason! The server-focused spin of Ubuntu is a stable, flexible, and powerful enterprise-class distribution of Linux with a focus on running servers both small and large. Mastering Ubuntu Server is a book that will teach you everything you need to know in order to manage real Ubuntu-based servers in actual production deployments. This book will take you from initial installation to deploying production-ready solutions to empower your small office network, or even a full data center. You'll see examples of running an Ubuntu Server in the cloud, be walked through set up popular applications (such as Nextcloud), host your own websites, and deploy network resources such as DHCP, DNS, and others. You’ll also see how to containerize applications via LXD to maximize efficiency and learn how to build Kubernetes clusters. This new fourth edition updates the popular book to cover Ubuntu 22.04 LTS, which takes advantage of the latest in Linux-based technologies. By the end of this Ubuntu book, you will have gained all the knowledge you need in order to work on real-life Ubuntu Server deployments and become an expert Ubuntu Server administrator who is well versed in its feature set.
Table of Contents (26 chapters)
24
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25
Index

Viewing system logs

If you’re having trouble finding the root cause, or you just want more information regarding a problem that occurred, consider looking through log files. Linux has great logging capabilities, and many of the applications you may be running are writing log files as events happen. If there’s an issue, you may be able to find information about it within an application’s logs.

There are two primary methods of viewing logs. Historically, for most of Ubuntu’s life, you could simply inspect the log files that are stored within the /var/log directory. The files contained within that directory are standard files and directories, so you can use commands you’ve used in the past to view the contents of text files to view the contents of the log files within the /var/log directory as well. This method of viewing log files is slowly being aged out; however, the majority of applications still store their log files within that directory,...