08-08-2009
Quote:
Originally Posted by
akshay61286
Hi All,
I am facing a problem, regarding code security on a server.
We have configured a server which contains our code (ear present in jboss/server/xyz/deploy) in it, and need to bind the code to the server itself so that no one can take the code out of the. the problem is that the password of root for some reasons has to be shared with the users of the server, and we don't want them to create a copy of our code.
Are there some ways to achieve this ???
My understanding is that with JBoss as it stands, you can't.
I have a crazy idea though, yet I'm not even sure whether it makes sense or not as I have not tried it before. In theory, because class loading in Java is based on ClassLoader conceptually speaking you can create a custom classloader that does not load the bytecode from physical files (say, instead load the bytecode over the network on initialization). As the classes have been loaded they will reside in the permanent generation of the JVM (in memory anyway, simply speaking) and there ought to be no physical files on the deployment server. So, no one can find the files in the filesystem. This is not difficult, but how to integrate that custom classloader into JBoss may be more tricky and is likely not as simple as changing some mbean descriptors. Therefore, if you have an earnest need you may need to investigate the class loading of JBoss and think along this direction.
Do share with us (I'm particularly interested in hearing this) if you can actually make it work.
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LEARN ABOUT SUSE
xkbqueryextension
XkbQueryExtension(3) XKB FUNCTIONS XkbQueryExtension(3)
NAME
XkbQueryExtension - Determines the compatibility of a library at runtime.
SYNOPSIS
Bool XkbQueryExtension (Display *dpy, int *opcode_rtrn, int *event_rtrn, int *error_rtrn, int *major_in_out, int *minor_in_out);
ARGUMENTS
dpy connection to the X server
opcode_rtrn
backfilled with the major extension opcode
event_rtrn
backfilled with the extension base event code
error_rtrn
backfilled with the extension base error code
major_in_out
compile time lib major version in, server major version out
minor_in_out
compile time lib min version in, server minor version out
DESCRIPTION
Call XkbQueryExtension to check for the presence and compatibility of the extension in the server and to initialize the extension. Because
of potential version mismatches, you cannot use the generic extension mechanism functions ( XQueryExtension and XInitExtension ) for check-
ing for the presence of, and initializing the Xkb extension.
You must call XkbQueryExtension or XkbOpenDisplay before using any other Xkb library interfaces, unless such usage is explicitly allowed in
the interface description in this document. The exceptions are: XkbIgnoreExtension, XkbLibraryVersion, and a handful of audible-bell func-
tions. You should not use any other Xkb functions if the extension is not present or is uninitialized. In general, calls to Xkb library
functions made prior to initializing the Xkb extension cause BadAccess protocol errors.
XkbQueryExtension both determines whether a compatible Xkb extension is present in the X server and initializes the extension when it is
present.
The XkbQueryExtension function determines whether a compatible version of the X Keyboard Extension is present in the server. If a compati-
ble extension is present, XkbQueryExtension returns True; otherwise, it returns False.
If a compatible version of Xkb is present, XkbQueryExtension initializes the extension. It backfills the major opcode for the keyboard
extension in opcode_rtrn, the base event code in event_rtrn, the base error code in error_rtrn, and the major and minor version numbers of
the extension in major_in_out and minor_in_out. The major opcode is reported in the req_major fields of some Xkb events. For a discussion
of the base event code.
RETURN VALUES
True The XkbQueryExtension function returns True if it determines a compatible version of the X Keyboard Extension is present in
the server.
False The XkbQueryExtension function returns False if it determines a compatible version of the X Keyboard Extension is not
present in the server.
SEE ALSO
XkbIgnoreExtension(3), XkbLibraryVersion(3), XkbOpenDisplay(3)
X Version 11 libX11 1.3.2 XkbQueryExtension(3)