The ClearCase ALBD (ALBD stands for the Atria Location 
Broker Daemon) Atria was the name of the company that 
originally designed and developed ClearCase) server is a 
broker between ClearCase processes and data. It provides 
other ClearCase processes with the information needed to 
locate and communicate with other ClearCase processes, 
regardless of where in the network the processes exist.

The multisite is the best part of clearcase than any other 
tool

special files like
pipe,socket

ordinary file

Some of them are :

Organize versioned artifacts into versioned components.

Organize versioned components and subsystems into versioned 
subsystems.

Create baselines at project milestones.

Record and track requests for change.

Organize and integrate consistent sets of versions using 
activities.

Maintain stable and consistent workspaces.

you can do a diff (p4 diff in perforce) on the program in
depot vs the local working copy.

goto the particular changeman package, then open it using S2
and give ST or S infront of the program, then the program 
will be staged

Through the option of GetLatestVersion

To retrieve or access a project located in the repository.

To be able to edit the elements. i.e to change the file or 
a directory.

if your program is in baseline version and you would like 
to do some changes with that version.so in order to access 
that program you need to first checkout from the baseline 
version to your package.

A checkout is basically getting a writable copy of the 
element in a view for the user to modify his/her element.

from changeman primary option menu,select 1(Build).1
(create),then it will ask for pkg details.fill those and a 
new pkg will be created. Important thing is specifying the 
release date of that package.

Hi,

Log files should help you.

At times users access a resource as though they were 
someone else. This is known as impersonation. For example, 
if a web page has no access controls, then any user can 
access that web page. HTML pages, ASP pages, and components 
in version 3.0 and earlier can be accessed through two 
accounts named IUSR_machinename and IWAM_machinename. Both 
the accounts are set up during IIS installation, and are 
automatically added to all the folders in every web site on 
the server.

Anonymous access to a resource in IIS makes the task of 
identifying a user extremely difficult. But there is no 
need to authenticate a user in the case of IIS. When IIS 
receives a request for a web page or other resource that 
has permission for anonymous access, IIS treats the 
IUSR_machinename account as the user's account, to access 
the resources. If the resource requested by the user is an 
ASP page that uses a COM or COM+ component, that component 
is executed using the IWAM_machinename account.

setting up Impersonation will help to know better to who 
accessed or which user accessed the resource.This restrict 
any anonymous access to the resource.

You can use Tortoise SVN,which has Merge Utility embedded 
in it.