How to monitor SFTP connections errors?

To monitor SFTP connections errors, you can follow the below steps:

1. Enable SFTP logging: To enable SFTP logging, you need to add the following line in your SSH server configuration file (/etc/ssh/sshd\_config for most Linux systems)

Subsystem sftp /usr/lib/openssh/sftp-server -l INFO

This will enable logging for SFTP sessions and set the log level to INFO.

1. Configure SFTP log file location: You can configure the location of your SFTP log file by adding the following line in your SSH server configuration file.

Set the location of the SFTP log file
Subsystem sftp /usr/lib/openssh/sftp-server -l INFO -f /var/log/sftp.log

This will create a log file at /var/log/sftp.log with SFTP session logs.

1. Analyze SFTP log files: You can use any log analysis tool to analyze the logs generated by SFTP sessions. Log analysis tools can help you find and fix SFTP connection errors.

1. Monitor SFTP logs in real-time: Using log monitoring tools such as Logstash, Fluentd, or Loggly, you can monitor SFTP logs in real-time and receive alerts whenever SFTP connection errors occur. This will help you identify and fix issues quickly.