The system's logs contain all kinds of valuable information that can help in the troubleshooting process. Explore a few of the most important logs in this video.
- [Male Narrator] It can be useful to check out … the messages that applications and the system … write to log files. … I'll change directory over to var/log, … where these files are stored. … Let's take a look at what's here. … In order to take a look at these logs, … we'll need to use the super user privileges. … Let's take a look at yum.log, … the log that the package manager keeps of its activities. … I'll use tail to look at the last few entries. … Here, I can see some of the packages … that we've installed throughout the course. … There's also the secure log, which shows security events, … including uses of sudo on the system. … Here, I can see my most recent connection … via ssh and I can see the last few times that I used sudo. … There's also the messages log, … where a lot of information shows up from processes … that don't have their own specific log files. … And you can take a look at the system's audit log as well. … In audit/audit.log, or in a much more readable way, … through the au report tool. …
- What is CentOS?
- Installing CentOS
- Configuring networking manually
- Configuring the network with NetworkManager
- Connecting remotely
- Working with security-enhanced Linux (SELinux)
- Setting up a firewall
- Setting up a web server
- Sharing user home folders with Samba
- Setting up a desktop environment
Skill Level Beginner
1. Getting Started
2. Basic Administration
3. Working with Security-Enhanced Linux (SELinux)
4. Working with Common Services and Applications
5. Using a Desktop
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