曝光台 注意防骗
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nodes, select a node, right-click, choose the Hide command from the context menu, select This Node Only, This
Node and It’s Peers and Nodes That are not Peers to This Node from the sub-context menu.
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Matrix
Network Analyzer
© 2009 Colasoft. All rights reserved. Colasoft®, the Colasoft logo, Capsa® are among the trademarks or registered trademarks of the company in
the United States and/or other countries. All other trademarks are
Invisible Nodes
The Invisible Nodes pane lists the nodes which have been temporarily hidden in the matrix because they do not
match the settings in the Display Options pane. The number in the bracket on the header of the Invisible Nodes
pane shows the number of invisible nodes. You cannot restore these nodes unless you choose Show All Nodes
in the Display Options list.
property of their respective owners. 72 / 72
Diagnoses
Network Analyzer
© 2009 Colasoft. All rights reserved. Colasoft®, the Colasoft logo, Capsa® are among the trademarks or registered trademarks of the company in
the United States and/or other countries. All other trademarks are
Diagnoses
Colasoft Capsa diagnoses your network from the captured packets and lists all diagnosis events with a severity
level. From the Diagnoses view, you are not only able to see the event count by network layer, but also know
event-related information such as source, destination, packet number, etc. The severity level indicates the event is
an informational message, a minor error or a critical error.
The subviews in the lower section provide more and detailed information of the current row selected from the
upper view, for example, when "Application Layer" is highlighted, the subview Events present all diagnosis
events on the application layer. In addition to the default columns, you can reach more column information by
clicking on the column bar and select "More...". Colasoft Capsa also lets you open a new window to show
event-related packets with double clicks on an event. The subview "References" offer a description for the current
event with possible causes and solutions, which is helpful for troubleshooting your network.
According to the severity levels of diagnosis, Colasoft Capsa contains four kinds of events:
Information
The Information severity level (labeled as ) indicates the current event is a normal message, no corrective
action is required.
Notice
The Notice severity level (labeled as ) indicates the normal but significant conditions of the current event, it
may require special handling.
Warning
The Warning severity level (labeled as ) indicates an error has occurred which requires your attention and
should be addressed soon.
Critical
The Critical severity level (labeled as ) indicates the serious error conditions which requires immediate
intervention by administrators.
This chapter provides a list of references information for all diagnosis events, including event description, possible
causes and solutions.
Diagnosis references - application layer
Colasoft Capsa offers expert diagnosis for the following application layer events.
Severity: Notice
Event Description Threshold Possible causes and solutions
Domain Name is
Inexistent
The domain name referenced in
the query does not exist. Information
∗The requested domain doesn't
exist.
∗User types in an invalid domain.
DNS Server Slow
Response Time
The average response time from
the server is higher than the
Slow Response Time threshold.
The web server is overloaded.
DNS Error
The server response to the
required host or domain is not
implement.
∗Format error
∗Server failure
∗Refused
∗Not Implemented
∗Reserved
HTTP Server Slow
Response Time
The average response time from
the server is equal to or higher
than the Slow Response Time
threshold.
Slow Response
Time - 150
milliseconds
The web server is overloaded.
POP3 Server Slow
Response Time
The average response time from
the server is equal to or higher
than the Slow Response Time
Slow Response
Time - 150
milliseconds
The POP3 server is overloaded.
property of their respective owners. 73 / 73
Diagnoses
Network Analyzer
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the United States and/or other countries. All other trademarks are property of their respective owners. 74 / 74
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