mos-docs

Logs

The Logs menu provides direct access to system log files stored on the server.
It allows you to inspect log output for troubleshooting, monitoring, and auditing purposes without using the command line.

The Logs menu is located under:

Settings → System Configuration → Logs

All log files located in /var/log and its subdirectories can be viewed from this interface.

Example:

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Log Viewer Overview

The log viewer lists all available log files found in:

/var/log

including files located in nested subdirectories.

Typical log files include:

• api
• auth
• boot
• cron
• docker
• notify
• syslog
• Application-specific log files
• Custom service logs

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Log Viewer Options

Log File Selection

Select the log file you want to inspect from the list.

Notes:

• Only files within /var/log are accessible
• Permissions are handled by the system
• Large log files may take longer to load

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Lines

Defines how many lines of the selected log file are displayed.

Default value:

• 10000 → Shows the last 10,000 lines of the file

Purpose:

• Limit output for better readability
• Improve performance when viewing large files

Best practice:

• Start with a lower number of lines when troubleshooting
• Increase the value only if more context is required

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Use Cases

• Diagnosing system or service startup issues
• Inspecting cron job output
• Reviewing authentication and access logs
• Debugging application or container behavior

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Notes and Limitations

• Log files are read-only in this view
• Editing or deleting logs is not supported

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Summary

The Logs menu offers a convenient and safe way to inspect system log files.

Key points:

• View logs from /var/log and subdirectories
• Select specific log files to inspect
• Control the number of displayed lines
• Ideal for debugging and system monitoring

Proper use of log inspection is essential for maintaining a stable and secure system.

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