8.4 Messages output to the access log

The following table lists and describes the messages that might be output to the access log.

Table 8‒10: Messages that might be output to the access log
Message	Cause
`FTP-command` ^#1 `is` `invalid` `because` `it` `was` `sent` `by` `a` `user` `who` `was` `not` `logged` `in.` `[Remote` `host:IP-address`^#2`]` `[Remote` `port:port-number`^#3`]` `[Connection` `number:connection-number` ^#4`]`	An FTP command that becomes executable after login was accepted before login.
`Login` `of` `user` `user-name`^#5 `failed.` `[Remote` `host:IP-address`^#2`]` `[Remote` `port:port-number` ^#3`]` `[Connection` `number:connection-number` ^#4`]`	Login failed.
`The` `max.` `number` `of` `FTP` `clients` `was` `reached.` `No` `more` `clients` `can` `use` `the` `service.`	The number of connection requests has reached the maximum permissible number of concurrent transmissions.
`The` `connection` `was` `closed` `without` `login.` `[Remote` `host:IP-address`^#2`]` `[Remote` `port:port-number`^#3`]` `[Connection` `number:connection-number` ^#4`]`	The FTP client disconnected itself without logging in.