|
This tab is used for
saving captured packets to a file on the disk. CommView saves
packets in its own format with the .NCF extension. The old (.CCF)
format is supported for backward compatibility. However, you can no
longer save the captured packets. You can open and view these
files at any time using
Log
Viewer, or you can just
double-click on any NCF or CCF file to have it loaded and
decoded.
NCF is an open format;
please refer to
CommView Log Files
Format chapter for detailed NCF
format description.
Save and Manage
Use this frame to save the
captured packets manually to a file and to concatenate/split
capture files.
It is possible either to
save all packets currently stored in the buffer or save only a part
of them within a given range. The To
and
From
fields allow
you to set the necessary range based on the packet numbers as shown
on the Packets tab. Click Save As
… to
select a file name.
To concatenate manually
multiple NCF files into a single, larger file, click on the
Concatenate
Logs button. To split NCF files
that are too large in size into smaller chunks, click on the
Split
Logs button. Then the program
will guide you through the process, and you will be able to enter
the desired size of the output files.
Auto-saving
Check this box to have the
program automatically save captured packets as they arrive. Use
the Maximum
directory size field to limit the total
size of the capture files stored in the Log
Directory. If the total size of the
capture files exceeds the limit, the program automatically deletes
the oldest files in the directory. The Average
Log File Size field allows you to
specify the approximate desired size of each log file. When the log
file reaches the specified size, a new file is automatically
created. To change the default Log
Directory, click on the
Save
files to box and select a different
folder.
IMPORTANT:
If you want to have an important capture file stored for a long
time, don't keep it in the default Log Directory: there is a chance
it will be automatically deleted as new files are being saved. Move
the file to a different folder to preserve it.
Please note that the
program doesn't save each packet individually immediately upon
arrival. It means that if you view the log file in real time, it
may not contain the latest packets. To make the program immediately
dump the buffer to the log file, either click Stop
Capture or uncheck the
Auto-saving
box.
WWW Access Logging
Check this box to enable
logging of HTTP sessions. Use the Maximum
file size field to limit the size of
the log file. If the log file size exceeds the limit, the program
automatically deletes the oldest records in the file. To change the
default file name and path, click on the Save
files to box and select a different
file name. Log files can be generated in HTML
or
TXT
formats.
Click Configure
to change the
default logging options. You can change the port number that is
used for HTTP access (the default value of 80 might not work for
you if you are behind a proxy server), and exclude certain data
types (usually logging anything other than HTML pages is quite
useless, therefore it is a good idea to exclude URLs of pictures
from the log file).
|
