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Simple Explanation: / var directory under the directory important
In the / var directory is a directory change, the stored data is changed, which is worth our attention directory then there is this directory it?
The first concern of the directory: / var / log / messges
This is the documentation system and software operation, an error will occur almost every turn in this record system
The second noteworthy directory: / var / log / secure
This is closely related to a security document, record the main information system user logins, such as, sshd will record all information (including unsuccessful login) here
The third noteworthy directory: / var / log / cron
This is a task closely related to the timing of log information, the date and time the task runs, running on which hosts the program [process ID] to run the task, the task to run specific information
The fourth noteworthy directory: /var/log/daemon.log
This is a background daemon that contains various system log information
The fifth concern directory: /var/log/yum.log
This is a package that contains information about using yum install