On-Net Surveillance Systems, Inc.
NetDVR 6.5
Logging
202
•
Integrity Checks and Possible Error Messages
Log files are subjected to an integrity check once every 24 hours. The result of the integrity check is
automatically written to a file named according to the structure LogCheck_YYYYMMDD.log, e.g.
LogCheck_20070615.log
.
The log check file is by default placed in the folder containing the NetDVR software.
Any inconsistencies will be reported in the form of error messages written in the log check file. The following table lists
possible error messages (other, non-error, messages may also appear in the log check file):
Error Message
Description
”Log integrity information was not
found. Log integrity can't be
guaranteed.”
The log file could not be checked for integrity.
”Log information does not match
integrity information. Log integrity can't
be guaranteed.”
The log file exists, but does not contain the
expected information. Thus, log integrity cannot be
guaranteed.
”[Log file name] not found.”
The log file was not present.
”[Log file name] is empty.”
The log file was present, but empty.
”Last line changed/removed in [log file
name].”
The last line of the log file did not match validation
criteria.
”Encrypted data missing in [log file
name] near line [#].”
The encrypted part of the log line in question was
not present.
”Inconsistency found in [log file name]
near line [#].”
The log line does not match the encrypted part.
”Inconsistency found in [log file name]
at beginning of log file.”
The log file header is not correct. This situation is
most likely to occur if a user has attempted to
delete the beginning of a log file.
