SonicWALL 3 manual CPU Monitor, DNS Name Lookup

CHAPTER 8: Performing Diagnostic Tests and Restarting the SonicWALL Security Appliance

Check the Group box next to any two or more criteria to combine them with a logical OR. For example, if you enter values for Source IP, Destination IP, and Protocol, and check Group next to Source IP and Destination IP, the search string will look for connections matching:

(Source IP OR Destination IP) AND Protocol

Click Apply Filter to apply the filter immediately to the Active Connections Monitor table. Click Reset Filters to clear the filter and display the unfiltered results again.

You can export the list of active connections to a file. Click Export Results, and select if you want the results exported to a plain text file, or a Comma Separated Value (CSV) file for importing to a spreadsheet, reporting tool, or database. If you are prompted to Open or Save the file, select Save. Then enter a filename and path and click OK.

The connections are listed in the Active Connections Monitor table. The table lists:

•Source IP

•Source Port

•Destination IP

•Destination Port

•Protocol

•Tx Bytes

•Rx Bytes

Click on a column heading to sort by that column.

CPU Monitor

The CPU Monitor diagnostic tool shows real-time CPU utilization in second, minute, hour, and day intervals (historical data does not persist across reboots).

Note: High CPU utilization is normal during Web-management page rendering, and while saving preferences to flash. Utilization by these tasks is an indication that available resources are being efficiently used rather than sitting idle. Traffic handling and other critical, performance-oriented and system tasks are always prioritized by the scheduler, and never experience starvation.

DNS Name Lookup

The SonicWALL security appliance has a DNS lookup tool that returns the IP address of a domain name. Or, if you enter an IP address, it returns the domain name for that address.

1Enter the host name or IP address in the Look up name field. Do not add http to the host name.

54 SONICWALL SONICOS STANDARD 3.0 ADMINISTRATOR’S GUIDE