Introduction

The FAIL: ftp per_source_limit error occurs when the FTP service reaches the maximum number of connections allowed from a single IP address. This can prevent users from connecting to the FTP server. The issue can be resolved by updating the FTP service configuration.

Prerequisites

  • Root or sudo access to the server
  • SSH access to the server
  • Permission to modify the FTP configuration

Implementation

Step 1

Check the system log for the following error:

FAIL: ftp per_source_limit from=xxx.xxx.xxx.xxx

Step 2

Open the FTP configuration file:

/etc/xinetd.d/ftp_psa

Step 3

Add or update the following line:

per_source = UNLIMITED

Step 4

Save the file.

Step 5

Restart the xinetd service:

/sbin/service xinetd restart

Step 6

Verify that users can now connect to the FTP server without the per_source_limit error.

Conclusion

Updating the per_source setting removes the connection limit for a single IP address, allowing users to establish FTP connections successfully. After restarting the xinetd service, verify that the FTP service is working as expected.

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