题目内容

阅读以下说明,回答问题1~问题5,将解答填入对应的解答栏内。
[说明]
在Linux环境下使用的FTP服务器软件主要有Wu-FTP、NcFTP和ProPTP三种,其中Wu-FTP是目前最流行的一种免费FTP服务器软件,某单位就使用该软件架设了一台FTP服务器,下面是该服务器主要配置文件/etc/ftpaccess的主要内容。
[配置文件/etc/ftpaccess的主要内容]
loginfails 5
class local real*
class remote anonymous guest*
limit remote 200 Any /etc/ftpd/toomany.msg
message/etc/ftpd/welcome.msg login
compress yes local remote
tar yes local remote
private yes
passwd-check rfc822 enforce
log commands real
log transfer anonymous guest inbound outbound
log transfer real inbound
shutdown/etc/ftpd/shut.msg
delete no anonymous.guest
overwrite no anonymous,guest
rename no anonymous
chmod no anonymous,guest
umask no anonymous
upload/home/ftpd*no
upload/home/ftpd/bin no
upload/home/ftpd/etc no
upload/home/ftpd/pub yes real 0644 dirs
upload/home/ftpd/incoming yes real guest anonymous 0644 dirs
alias in/incoming
email admin@abc.net.cn
email ferd@sina.com.cn
deny *.com.tw /etc/ftpd/deny.msg
文件/etc/ftpaccess中,loginfails5一行的含义是什么?

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