F-SECURE INTERNET GATEKEEPER FOR LINUX 4.01 Administrator's Manual page 84

Message
###ERROR### smtp_data_cmd_itr:AUTH buf=[Response line] /strerror(xxx)=xxx
Description
Is displayed when a response code during SMTP authentication with the SMTP server returns an
irregular code (besides 334, 5xx, 235). The [Response line] represents the response message from
the SMTP server.
Solution
Check if the response message from the SMTP server is correct. If there are no problems, please
send the diagnostic information and the results of the packet capture (tcpdump) being
authenticated to F-Secure.
Message
###ERROR### ftp_noop_callback:NOOP command reply error [Response line]
/strerror(xxx)=xxx
Description
Is displayed when a NOOP command sent to a FTP server returns a response other than 200.
Solution
Check if the FTP server is disconnected or if it is correctly responding to the NOOP command.
Solution
Check if the response message from the SMTP server is correct. If there are no problems, please
send the diagnostic information and the results of the packet capture (tcpdump) being
authenticated to F-Secure.
Message
###ERROR### XXXX /strerror(23)=Too many open files in system
Description
Displays a message which indicates that there are too many open files.
This message appears when the number of open files has reached the maximum allowed limit on
the system.
You can check the number of file handles at /proc/sys/fs/file-nr in the following way:
(Display command) cat /proc/sys/fs/file-nr
[Allocated file handles] [File handles being used] [Maximum allowed files handles]
(Example: # cat /proc/sys/fs/file-nr
1864 504
Solution
Check if there are any processes that are using a lot of file handles. You can use, for example,
the "lsof" command.
If there are no problems in the system and the number of file handles being used is approaching
the maximum, increase the file handles by changing "/proc/sys/fs/file-max" in the following way:
F-Secure Internet Gatekeeper for Linux/Administrator's Guide
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