500 Unable to service PORT commands | AwardSpace.com
ftp> ls 500 Illegal PORT command. ftp: bind: Address already in use,500 OOPS: cannot read list_500 oops: cannot read user list file:/etc/vsftpd.u_甜甜圈Sweet Donut的博客-CSDN博客
ftp> ls 500 Illegal PORT command. ftp: bind: Address already in use,500 OOPS: cannot read list_500 oops: cannot read user list file:/etc/vsftpd.u_甜甜圈Sweet Donut的博客-CSDN博客
linux - Proftpd directory listing error on Docker container - Stack Overflow