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This article mainly introduces what problems proftpd will encounter in Gentoo, has a certain reference value, interested friends can refer to, I hope you can learn a lot after reading this article, the following let the editor take you to know about it.

I encountered some problems in using proftpd and solved them. These problems may only occur in specific environments and versions, and not all Linux distributions and proftpd software versions have these problems.

ACL (Access Control List)

ACL was introduced in the 1.3.0rc1 version of Proftpd and is still in the testing stage. If USE=acl is added when Gentoo compiles proftpd, and the partition where your / home directory is located does not enable acl support when mount, there may be problems with anonymous access.

Problem-after compiling and installing proftpd, the system displays the following message when logging in to anonymous using lftp:

Unable to set anonymous privilege

Check the system log tail-f / var/log/message to find the following information:

Directory ~ ftp is unaccessible

The reason for the above problem is that proftpd uses ACL to check the access to the directory ~ ftp for some unknown reason when the user logs in anonymously, and the directory is considered inaccessible if the file system does not support ACL. So there are two solutions, one is to specify ACL support in the mount file system, and the other is to specify USE= "- acl" when compiling.

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