In
this article we will see
what
are network Channels
What
are Virtual Hosts
how
are they configured and how does a application is deployed in the
Virtual Host
What
is a Network Channel
A
network channel is a resource that defines the attributes of a
network connection to the web logic server. Each network channel is a
unique combination of a port, a listen address, and a connection
protocol (for example t3 or HTTPS). Each Web Logic Server instance
has its own network channels for clients to use to communicate with
the server.
Web
logic comes with 2 network channels for each managed Server in a
Domain. They are a
pre-configured
default channel and a administration channel
They
are many uses of using a custom channel, including the ability to
separate different types of network traffic. Multiple custom channels
also enable you to specify different connection protocols, such as
secure and non-secure protocols, to meet the needs of different types
of applications and their network traffic
What
are Virtual Hosts
A
virtual host is a set of host names to which Web Logic Server
instances (servers) or clusters respond. When you use virtual
hosting, you use DNS to specify one or more host names that map to
the IP address of a server or cluster. You also specify which Web
applications are served by each virtual host.
how
are they configured and how does a application is deployed in the
Virtual Host
In
the first part , we will see how we can configure a Network Channel
first.
Configuring
a Network Channel
Log
in to the admin-console → left pane → Domain Name →
Environment → servers
→ Click
Local & Edit
→ Go
to 'desktop_server' → protocols → channels
→ Click
on Lock & Edit
→ Click
New
→ Enter
following details for channel as below,
→ Click Next , in the next screen enter the below details
Leave
External Listen address and Leave External Listen Port blank
→ Click
on 'Finish'
→ Save
changes
→ Activate
changes
Note:
After this step you have created a network channel. That means your
server
will
listen at given listening address and port. Try accessing
http://127.0.0.1:7003
Configuring
a Virtual Host
Here
are the Sequence of steps to follow for configuring the Virtual host
Go
to admin-console → left pane → Domain Name → environment ->
virtual hosts
→ Click
lock & edit
Right
pane :
→ Click
on New
→ Enter
Name 'myVHost'
→ save
changes
→ Activate
changes
Now
Edit the Created Virtual Host Setting , enter the below details
Configure
the targets for the Virtual host,
Now
Edit the Created Virtual Host Setting , enter the below detail
Deploy
application to virtual host
Go
to admin-Console → left pane → Domain Name → deployments
→ Click
lock & edit
Right
pane:
→ Click
on 'Install'
→ Click
on "upload your files" link
→ Click
"browse" (against 'deployment archive' )
→ select
"myApp.war"
→ Click
"Next"
→ Choose
'myApp.war ' in the "location" section
→ Choose
"Install this deployment as an application" radio button
→ Click
on "deployment targets" tab
→ select
'myVHost' -> Next -> Next -> Finish
→ Save
changes
→ Activate
changes
Create
DNS entry in your hosts file
For
linux hosts file is: /etc/hosts Append the following line to the file
as super user.
127.0.0.1
myvh.oracle.com
Save
the changes to 'hosts' file.
For
Windows , the host file in C:\WINDOWS\system32\drivers\etc directory
and add the host name myvh.oracle.com which we have specified for the
virtual host. Add the below in the file:
127.0.0.1
myvh.oracle.com
Access
the application
Access
the application on the virtuals host using the url that we configured
inside the hosts file.
More
to Come , Happy Learning :-)
