RuggedCom RuggedRouter RX1100 - Manual (Page 30)

1. Setting Up And Administering The Router
Revision 1.14.3 30 RX1000/RX1100™
Figure 1.12. Signing On To The Router With A Web Browser
1.4.2. SSL Certificate Warnings
Your browser may complain about the SSL certificate that Webmin issues.
This happens because the default SSL certificate that comes with Webmin is not issued by a
recognized certificate authority. From a security point of view, this makes the certificate less secure
because an attacker could theoretically redirect traffic from your server to another machine without
you knowing, which is normally impossible if using a proper SSL certificate.
Network traffic is still encrypted though, so you are safe against attackers who are just listening in
on your network connection.
If you are initiating the connection to the router, and your network is private, a VPN or firewalled, it
should be safe to have your browser permanently accept the certificate.
If you want to be really sure that the Webmin server you are connecting to is really your own, the only
solution is to order a certificate from an authority like Verisign that is associated with your router's
hostname and will be recognized by web browsers.
1.4.3. The Structure of the Web Interface
The Web interface presents an web page with two frames. The leftmost or index frame selects
subsystems to configure and is always displayed.
The rightmost or configuration frame presents the configuration for the currently selected subsystem,
or in the case of signing-on, the home page window. The home page window presents an annotated
view of the front of the chassis as well as a number of important system parameters. These parameters
include:
• The router uptime and load averages for the past 1, 5 and 15 minutes. Under normal operation
the load average should be less than 2.0.
• The disk usage. A disk usage higher than 92% requires attention.
• The memory usage, indicating the amount of memory used by applications. Under normal
operation memory usage should be less than 60%.
• The chassis temperature.
• Any major alarms, such as the failure of hardware components.