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FTP login failure under centos displays 503 error

王林
Release： 2020-03-30 10:36:25
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FTP login failure under centos displays 503 error

Problem:

Centos7 installation FTP suddenly failed to log in and displayed a 503 error. There is no problem with the vsftpd.conf configuration, but I just can't log in.

Error screenshot:

FTP login failure under centos displays 503 error

(Recommended tutorial: centos tutorial)

Solution:

Later, I queried the solution and located the problem on /etc/pam.d/vsftpd.

Main comments#auth required pam_shells.so will do.

FTP login failure under centos displays 503 error

Login successful

FTP login failure under centos displays 503 error

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