ProFtpd refused connection

[Mise]

ProFtpd refused connection to users

# grep -C3 mod_wrap /var/log/messages

Mar 26 16:12:10 host proftpd: 2021-03-26 16:12:10,562 srv.myserver.com proftpd[10187] 7.8.9.0 (1.2.3.4[1.2.3.4]): FTP session opened.
Mar 26 16:12:10 host proftpd: 2021-03-26 16:12:10,887 srv.myserver.com proftpd[10187] 7.8.9.0 (1.2.3.4[1.2.3.4]): mod_wrap/1.2.4: using access files: /etc/hosts.allow, /etc/hosts.deny
Mar 26 16:12:10 host proftpd: 2021-03-26 16:12:10,889 srv.myserver.com proftpd[10187] 7.8.9.0 (1.2.3.4[1.2.3.4]): mod_wrap/1.2.4: refused connection from 1.2.3.4
Mar 26 16:12:10 host proftpd: 2021-03-26 16:12:10,949 srv.myserver.com proftpd[10187] 7.8.9.0 (1.2.3.4[1.2.3.4]): FTP session closed.

after commenting this line inside /etc/proftpd.conf and restart proftpd, it works again:

#TCPAccessFiles /etc/hosts.allow /etc/hosts.deny

no services or ip were included inside /etc/hosts.allow and /etc/hosts.deny.
It seems an error when TCP.Wrappers option for proftpd are active in the file configuration while both hosts. files don't have restrictions.

 

[cPRex]

Hey there! Would this server happen to be running the CentOS 8 operating system? If so, there were changes to TCP.Wrappers as outlined here:

ProFTPD Configuration for Host Access Control | cPanel & WHM Documentation

This document provides an example of how to configure ProFTPD to utilize the Host Access Control feature from the command line to restrict access by IP address to FTP.

docs.cpanel.net

so what you're experiencing is actually normal behavior. Let me know if that isn't the case!