Linux Quick Reference

This section lists some standard Linux commands that you may find helpful with the XR2000.

After capturing data, you can use the web interface remote tools Upload and Download to load the .enc file and open it with Wireshark on a windows PC.

Command Descriptions

netstat

Displays generic network statistics of the host. If you include the -an and -rn arguments, netstat displays the routing table and the application ports open on the XR2000, as well as their respective output.

With no arguments, netstat displays the active connections and the used sockets.

passwd

Changes the password for the current user.

route

Displays routing table information.

ifconfig

Displays the IP address and netmask associated with each Ethernet port. Also displays details/counts of packets/bytes of traffic on each port.

route

Displays the routing table information.

tcpdump

Displays the packets on an interface.

To use for a specific interface:	`tcpdump –i eth0`
To use with no ssh port:	`tcpdump –i eth0 not port 22`
To export the command output to a file:	`tcpdump –i eth0 not port 22 –w /tmp/mycapture.enc`