User manual

The WebMux™ Model 480S, 580SG, and 680PG User Guide – Version 7.0.x

Q. How come my servers in the farm showing in red color from time to

time, even the servers are okay?

R. Your servers are trying to resolve WebMux’s IP address to name so it

could log them into log file. To avoid this problem, set the servers not

resolve the IP addresses, also adding all the IP address to the

/etc/hosts file on your servers. For example,

www.mydomain.com 1.2.3.4 // use your real IP address

webmuxgw 192.168.199.1 // server lan gateway

webmuxip 192.168.199.254 // server lan WebMux™

Q. How many browsers can simultaneously access the WebMux™

management console?

R. The limit is 4.

Q. I have added a new farm/server, but the changes are not showing up

on the STATUS screen.

R. The web browser caching pages may cause this. If the new

configuration does not appear after clicking on Reload or Refresh, then

clear the cache or temporary files on the browser.

Q. Will my web server be able to communicate to a credit card validation

service, like Cybercash?

R. Yes. Any communication initiated from the internal or private network,

the WebMux™ will substitute the IP address of its router LAN interface

for the IP address of the host initiating the conversation. Any service

that requires a specific IP address to allow communication into their

network, the IP address of the router LAN interface must be the one

provided. We have CyberCash engineers worked with us to test this is

working fine.

Q. Can I use the WebMux™ as a proxy server for other hosts in my

internal network?

R. Yes. The function that allows the web servers to talk to services such

as the credit card validation, allows the WebMux™ to function as a

proxy server for any host in the internal network. The WebMux™ will

translate all internal addresses to the IP address of the “first farm”

defined. This is the farm that is created when answering the question:

Enter Router LAN WebMux™ proxy IP address:.

Configuring other computers using WebMux’s proxy function is easy –

just point the gateway IP address to the WebMux™ backend IP

address.

Q. Do I need to have a firewall in front of WebMux™?

R. In most cases, no. WebMux™ blocks all the incoming traffic from

router LAN to your internal network. Unless there is a farm defined for

a port number, the outside traffic will not be able to reach to any server