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Is there some way to install Volano without having X-Windows running?
Just use the "-o" option to avoid graphical windows during
installation. For more details, see the UNIX
Installation or General Installation
instructions.
How can I avoid the errors I get when I use the vchat200.sh
installation shell script?
If the vchat200.sh shell script doesn't work on your
system, just download and use the vchat200.class file
instead, and follow the instructions for
Installing on Other Systems.
When I try to install VolanoChat, why do I see Can't find class
vchat200?
Make sure you're in the same directory as the
vchat200.class file when you enter the command, since the
Java virtual machine by default looks in the current working directory
for class files. If you have set the CLASSPATH environment
variable, make sure to include the current working directory
(".") in the CLASSPATH setting.
When installing VolanoChat and a Java Virtual Machine, how should I set
up the directory structure?
You can install the server right under your home directory, such as
/home/john, for example. That would put the VolanoChat
server in:
/home/john/vchat2.0.0
The client applet must be moved to your public HTML directory. In the
example above, you would need to move
/home/john/vchat2.0.0/vcclient to your public HTML
directory, such as:
/home/john/public_html/vcclient
(or any other public HTML directory). Most Java virtual machines can be installed in your home directory as well.
How do I start the VolanoChat server with the KeepAlive option?
The KeepAlive program takes the actual java command as a parameter. For
example, we start up our demo server with the following script on
Solaris 2.6:
#!/bin/csh -f cd $home/vchat2.0.0 unlimit java COM.volano.KeepAlive java COM.volano.Main >>& server.log &
I am using FreeBSD. How do I increase the number of concurrent connections?
You can increase the limit by increasing maxusers in your
kernel configuration (from 10 to perhaps 100) or by adding the following
two lines to /etc/rc.local:
sysctl -w kern.maxfiles=4096 sysctl -w kern.maxfilesperproc=4096
See FreeBSD 2.2.6-RELEASE for more tips on using VolanoChat on FreeBSD.
Why do I get a warning message on the applet window?
That's just your Web browser warning you that the window created by the
VolanoChat applet is from a Java applet loaded over the network and not
from one of your own local programs, like your word processor for
example. The purpose of the message is to give you enough warning that
you'll be suspicious of Java applets asking for passwords or credit card
information.
Is the chat server able to produce a transcription of the chat room text?
Our upcoming release of VolanoChatPro 2.1 will have the ability to
transcript the chat text to a log file. For earlier releases and with
the standard VolanoChat software, any user in any chat room can copy and
paste the contents of a chat room and save the text to a file.
Can the BannerPlayer applet be used outside of VolanoChat chat rooms?
Sure. See the BannerPlayer Applet page
for an example. Just place it on a Web page with something like:
<h1>BannerPlayer</h1>
<p align="center">
<applet code="COM.volano.BannerPlayer.class" width="468" height="60">
<param name="background" value="#000000">
<param name="foreground" value="#FFFFFF">
<param name="banner.width" value="468">
<param name="banner.height" value="60">
<param name="banner.1" value="30 vcclient/welcome.gif
http://www.volano.com/">
<param name="banner.2" value="30 vcclient/help.gif
vcclient/help.html">
<param name="banner.3" value="30 vcclient/chatwithme.gif null">
</applet>
</p>
How do I replace the BannerPlayer applet with another applet?
For example, if your applet tag looks like:
<applet code="video.class" archive="video.zip" width="177" height="145" align="center"> <param name="cabbase" value="video.cab"> <param name="src" value="http://123.123.123.123:1000"> </applet>
You would enter something like the following in the
english.txt file:
banner.code=video.class banner.parameters=video.txt banner.width=177 banner.height=145 banner.fill=true
and then create the file video.txt containing the three
lines:
width=177 height=145 src=http://123.123.123.123:1000
Both of these files would be found in the VolanoChat applet's
codebase of vcclient by default.
The trick with ZIP or CAB Java archives is that you need to unpack
the archive. It's easiest to simply unpack the ZIP archive with an unzip
utility such as the one freely available for almost all systems from
Info-ZIP. You need to
place the unzipped files in the same code base as the VolanoChat applet
(the vcclient directory by default). Then just make sure
you're loading any applet resources from the machine running the
VolanoChat server.
When loading banners from a remote server, why does the browser status
bar display java.lang.NullPointerException?
The error may be a result of Web browser security restrictions
preventing the applet from getting images and other files from any
machine other than the one from which it was loaded.
You can get around the restriction by using a proxy CGI script such as the one we provide with our product, called the ProxyServlet. It's just a matter of putting a prefix on the remote URLs. See the COM.volano.ProxyServlet section of the VolanoChat Servlets chapter for more information.
Can I change the target of the About menu item in the VolanoChat
applet?
No, this property always links back to Volano's Web site.
How do I add an IP address to a user's profile?
By default, the profile properties are not defined to display the IP
address in the profile information:
text.status.noprofile=%0 has no profile. text.status.profile=%0: %2
Modify the profile properties in english.txt,
representing the visitor's IP address with the substitution variable
%1. For example:
text.status.noprofile=[%1] %0 has no profile. text.status.profile=[%1] %0: %2
How can room monitors see the IP addresses of visitors?
Just create a copy of the english.txt applet properties
file and call it monitor.txt. By default, the IP address is
not displayed in the profile information:
text.status.noprofile=%0 has no profile. text.status.profile=%0: %2
Modify the profile properties in monitor.txt to display
the IP address with:
text.status.noprofile=[%1] %0 has no profile. text.status.profile=[%1] %0: %2
Then modify the monitor applet parameters to read in the new properties file:
<param name="monitor" value="true"> <param name="text" value="monitor.txt">
How can I add sounds to the VolanoChat applet?
You can find some sample sound files under the demo
directory of your Java Development Kit (JDK) installation. Just look for
files with an "au" file name extension. You can get a good
sound editing program for Windows, called Cool Edit, from
Syntrillium Software
Corporation.
Why do some visitors get disconnected?
There are several possible reasons for disconnections:
Why do visitors see an unable to connect Web page?
The chat server could be full or might not be running, or the user might
not have access through a firewall proxy. If some people can get into
the chat rooms and others cannot, make sure the license key is set up
properly by viewing the support.log file. This file is
created in the VolanoChat server installation directory and looks like
the following:
server.version = Version 2.0.0 Build 167 server.license = VolanoChatPro - 100 connection limit server.expiration = null server.host = chat.domain.com (123.123.123.123) server.port = 8000 java.vendor = Apple Computer, Inc. java.vendor.url = http://www.applejava.apple.com/ java.version = 1.1.3 java.class.version = 45.3 java.compiler = MRJ2Jitc os.name = Mac OS os.version = 7.6.1 os.arch = PowerPC user.language = en user.region = US file.encoding = MacTEC file.encoding.pkg = sun.io
The file displays your license information as the property
server.license. In particular, it will tell you how many
concurrent connections to the VolanoChat server is allowed by your
license. If it displays "VolanoChatPro - 5 connection
limit", then the license key is not working properly because the
IP address or the port number of the server do not match the values
provided when the software was purchased.
How does VolanoChat work with firewalls?
The VolanoChat applet works through any SOCKS proxy server. Many popular
firewalls contain a SOCKS server, such as Netscape's Proxy Server, NEC's
PrivateNet, IBM's Secure Network Gateway, Aventail's MobileVPN and
PartnerVPN, and Deerfield's WinGate.
Microsoft Internet Explorer 4.0 has SOCKS support for Java applets built into the browser. To enable the support for Internet Explorer 4.0 on Windows 95, 98, or NT 4.0, do the following:
Using Internet Explorer 4.0 on the Macintosh, do the following:
http://.
For Netscape Communicator, Netscape Navigator, and older versions of Internet Explorer, you can download and install Hummingbird's free SOCKS client in order to allow Java applets to safely traverse the SOCKS server on your firewall. Aventail Corporation provides a commercial version of their automatic SOCKS client program, called AutoSOCKS, which you can download from their Auto SOCKS product page.
For more information on SOCKS, please see the SOCKS Proxy Protocol page.
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