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Checkstyle is an open-source development tool to help programmers write Java code that adheres to a coding standard.
To enable Checkstyle on a project right-click the project and select the project's properties. The following is the final part of a 3 part series of articles that represent an entire chapter of the soon-to-be-released Microsoft Office Communications Server Resource Kit.
The content for these articles has been excerpted from Chapter 5 by Hao Yan of the Microsoft Office Communications Server Resource Kit by Jeremy Buch, Jochen Kunert, and Rui Maximo with Byron Spurlock, Hao Yan, James O’Neill, John Clarkson, Kintan Brahmbhatt, Mitch Tulloch, Rick Kingslan, Stephanie Lindsey, and the Microsoft Office Communications Server Team.
In this section, we discuss some technical details of data collaboration conferences and Web conferences. Both Microsoft Office Communicator 2007 and Microsoft Office Live Meeting Console 2007 clients register an operating system protocol handler when they are installed.
The first step that the conferencing client performs after launch is to discover Office Communications Server for the user, based on the configured user SIP URI in the client.
An Office Communications Server is found, and the server is federated with the Office Communications Server that hosts the conference. An Office Communications Server 2007 server is found, and the server is federated with the Office Communications Server 2007 server that hosts the conference.
The SIP INVITE that the client sends has an addUser C3P command as the body of the SIP message.
The addUser request contains the conference URI and the user SIP URI, which must be the same as the SIP To and From URIs, respectively.
At this point, the signaling dialog is successfully established between the joining client and the Focus. After a SIP signaling dialog is successfully established, the conferencing client and the Focus establish a subscription dialog. After both the signaling and subscription dialogs are established, the conferencing client can receive conference state change notifications, such as another user join, from the Focus.
The addUser C3P command is used by conferencing clients to join themselves to the conferencing servers involved in the conference. To join the Web Conferencing Server, the client then constructs an addUser C3P request and sends it to the Focus requesting to dial-in to the Web Conferencing Server.
The Focus forwards the dial-in request to the Web Conferencing Server after stamping the request with the originator URI and proper authorization.
All conferencing servers must supply contact information that the client can use to connect. Some conferencing servers might supply an authorization token or some other parameter to the client.
The Fully Qualified Domain Name (FQDN) or IP address of the Web Conferencing Server and port number.
Access information (FQDN and port) for zero, one, or more Web Conferencing Edge Servers if the client connects from outside of the corporate firewall.
An authorization cookie for the Web Conferencing Edge Server if the client connects from outside of the corporate firewall. Once a signaling dialog is established with the Focus, clients can send conference control CP commands on the dialog. The Focus operates on the C3P request and generates one or more SIP responses back to the client containing C3P pending or a final response. When the Focus accepts the command from the sender, it usually generates a C3P request to the conferencing servers in the conference and also responds with a SIP 202 Accepted message to the INFO request. In Office Communications Server 2007, the Web Conferencing Server stores in-conference data contents and its state information in files.
Metadata file share, used for storing conference state information and metadata that describes data content.
Content file share, used for storing user uploaded data content, such as a PowerPoint file.
The file shares are access controlled so that no conferencing client has direct access to them.
When the Web Conferencing Server starts a conference—that is, when it receives an addConference command from the Focus—a metadata folder is created for the particular conference under the folder specified by the metadata file share UNC. For each organizer, the Web Conferencing Server creates a separate folder under the metadata root folder.
For each conference, the Web Conferencing Server creates a separate folder under the organizer sub-folder.
The Web Conferencing Server checks the permission for the user (that is, whether the user is allowed to create such type of content).
The Web Conferencing Server creates the state for the new slide and saves the state on the file system (in the metadata folder for the conference), in encrypted format.
The Web Conferencing Server shares back to all clients in the conference the new slide state. For all generated content except for Poll slides, the content is sent with the first PSOM message that creates the slide. The Web Conferencing Server computes the URLs from which the saved encrypted contents can be accessed via HTTPS. The Web Conferencing Server sends back to the clients via PSOM the URL and the encryption key for the content files. Each client participating in the conference uses the URL to download the encrypted content from IIS. Compliance with regulatory requirements was the motivation for adding IM archiving capabilities to Live Communications Server.
The logs of activities are stored in XML files, and the uploaded contents are saved in the content’s original format. The administrator can enable and disable the meeting compliance feature on each Office Communications Server pool. The Web Conferencing Server organizes the three content-related file shares in such a way that it is efficient for fast storage and retrieval of content. In the Resource Kit tools for the Office Communications Server 2007, three tools are provided that help administrators manage the contents in the file shares.
For security reasons, a Web Conferencing Server saves conference contents in encrypted format in the content file share.
The Dmhash.exe tool helps a Microsoft Office Communications Server 2007 administrator generate the hash value for a user URI. The Dmdel.exe tool helps a Microsoft Office Communications Server 2007 administrator find conferences content that is older than a specified date and delete that content. The Web Conferencing Server, by default, deletes the content of conferences that has not been activated for roughly 28 days. Conference features, except for anonymous participation, are grouped and managed using meeting policies.
When a user uploads PowerPoint content, it is converted to .png files that the server renders.
If this option is enabled in a policy (the default), when a presenter makes a slide deck active, each attendee’s Microsoft Office Live Meeting 2007 client automatically downloads the Microsoft Office PowerPoint presentation in its native format (.ppt file) as well as the converted PNG files.
If the policy does not enable this option, when a presenter makes a slide deck active, each Live Meeting 2007 client automatically downloads only the converted PNG files. This option is generally not selected if there are concerns about the bandwidth required to download slides in native mode or if original files should not be shared with participants. This setting enables presenters in a meeting to share applications or an entire desktop with other participants. If it is selected in a meeting policy, the presenter can allow all participants with Active Directory accounts to take control of the organizer’s desktop or a program that is running on the desktop.
The default color depth for displaying slides and other meeting content in the Default Policy and Policy 5 (Low) meeting policies is High Color (16 Bit). You can also change the sharing settings that apply to federated and anonymous users (non–Active Directory users). Use this option to specify that users without an Active Directory domain account in your organization cannot take control of a shared program or desktop during meetings organized by users who have been assigned this meeting policy. Use this option to specify that users without an Active Directory domain account in your organization can take control of a shared program, but not a shared desktop, during meetings organized by users who have been assigned this meeting policy. Use this option to specify that users without an Active Directory domain account in your organization can take control of a shared program or shared desktop during meetings organized by users who have been assigned this meeting policy. Restricting control of shared programs and desktops is generally done to address concerns about who might have access to the shared programs or desktops. If you select the Allow Presenter To Record Meetings option, you can also allow the presenter to allow attendees to record meetings. Enabling IP audio for meetings requires deployment of the appropriate audio hardware, including head sets, microphones, or speakers. Enabling IP audio can affect performance and the Office Communications Server infrastructure.
This option controls whether streaming of video over the Internet connection is allowed in meetings organized by users in this forest who have been assigned this meeting policy. Enabling IP video for meetings requires deployment of the appropriate video hardware, including webcams or Microsoft Office RoundTable.
Enabling IP video can affect performance and the Office Communications Server infrastructure. Whether a user can invite anonymous users into her conferences is configured outside of the meeting policy.
Give permission at the global level to invite anonymous participants to meetings, in which case all users in an Active Directory forest can invite anonymous participants to meetings. Deny permission to all users at the global level, in which case no users in the forest can invite anonymous participants to meetings. Enforce a meeting policy per user, in which case only individual user accounts configured to allow anonymous participation can invite anonymous participants.

This chapter introduced basic concepts and scenarios for Microsoft Office Communications Server on-premise conferences.
Mitch Tulloch is a well-known expert on Windows Server administration and cloud computing technologies.
Join us as we kick off our new series of expert interviews with IT insiders and tech gurus conducted by MVP Mitch Tulloch. Our first interview series is with Johan Arwidmark Microsoft MVP Cloud and Data Center Management, and Mikael Nystrom Microsoft MVP Cloud and Data Center Management. What changes will you need to make to your deployment infrastructure as new versions of Windows 10 are released by Microsoft?
As companies begin relying more on Skype for Business for their communications and application delivery, performance and reliability become paramount.
How hardware load balancing can provide better monitoring and availability of front-end and edge server pools. The new Citrix SD-WAN solution that can ensure quality through unique QoS and path selection technologies for MPLS, DSL and Internet. How performance for audio and video can be enhanced for virtually deployed desktop Skype clients. Configuration files are supplied to support well known coding standards such as the Sun Code Conventions for the Java Programming Language. This discovery logic performs a series of DNS SRV queries based on the domain portion of the user’s SIP URI.
In this case, the client sends the join SIP INVITE targeted at the Office Communications Server 2007 server that hosts the conference. In this case, the conferencing client will try to join the conference as an anonymous user.
The Focus then notifies existing conference participants that the user has joined the conference. The lifetime of the subscription dialog is the same as the lifetime of the signaling dialog.
The request contains a role that matches the current role of the user in the conference, specifies a joining-method value of dialed-in, and also supplies an endpoint that is usually a GUID for the session. If the Web Conferencing Server decides to accept the C3P request, it should construct a standard addUser response and return it to the Focus, which will then proxy the response to the client. The semantics of such parameters are a contract between the conferencing server and the client.
This is necessary for the client to identify which conference it is joining when making a connection to the Web Conferencing Server.
Responses from the conferencing servers are proxied back to the client except in the forking-command case, where they are consumed by the Focus. When the C3P result is available, the Focus generates another INFO request and sends it to the client. This command is issued when a presenter in the conference tries to lock or unlock a conference in the client. All files are encrypted using Advanced Encryption Standard (AES) and a randomly generated key (one for each content file). User uploaded content refers to content that has an origin (either a file or a picture) on the client side and that is uploaded to the Web Conferencing Server using the PSOM protocol. For Poll slides, the content (questions and choices) is sent in a new PSOM message after the initial Create Slide message has been sent. For each file unpacked, the Web Conferencing Server generates an encryption key and uses it to encrypt the file. This is possible because the Web component sets up a virtual directory that points to the same content file share that the Web Conferencing Server writes to. Those same requirements apply to certain aspects of an Office Communications Server conference as well. Those compliance XML logs and content files are stored in a configurable file share identified by a UNC path.
In addition, both metadata and the content file share contents are stored using strong encryption. Please refer to the Resource Kit tools documentation for instructions on installing and using these tools. Therefore, even if the user has access to the content file share, the administrator cannot view the actual content. The content is rendered in the same way as it is rendered in the Microsoft Office Live Meeting Console. The tool can render the compliance content in the same way as it is rendered in the Microsoft Office Live Meeting Console.
The statistics information includes the number of organizers, the number of conferences hosted on a particular file share, and so on. This tool allows administrators to manually delete inactive conference content on their own schedule. You control which features a conference organizer can use during a conference by configuring and applying specific policies. All meeting policies include the same features, but any or all of the features can be configured differently for each meeting policy.
An organization can invite more participants than the maximum meeting size, but once attendance reaches the maximum meeting size, no one else can join the meeting. If you do not use native PowerPoint format, the original source is unavailable and cannot be changed. If this option is not selected, PowerPoint slides are downloaded as *.png images, which are equivalent to screen shots. For Office Communications Server 2007 and earlier versions, the default for these two meeting profiles was 256 Colors. This option controls whether streaming of audio over the Internet connection is allowed in meetings organized by users who have been assigned this meeting policy. This option is generally not selected if there are concerns about the bandwidth required for video.
This is because in an enterprise, only a small percentage of users (such as people in Sales department) need to invite external partners or customers into their conference. He has published over a thousand articles on information technology topics and has written, contributed to or been series editor for over 50 books. This Resource Kit will be the definitive reference for deploying, configuring, and supporting Office Communications Server 2007 and includes lots of expert insights direct from the Microsoft Office Communications Server Team. The user is authenticated by the Office Communications Server 2007 server in her own domain, and the SIP INVITE is successfully routed to the Office Communications Server pool that hosts the conference. The user is authenticated by the Office Communications Server 2007 server in her own domain. The endpoint entity is optional, and the Focus ignores the body of the endpoint entity and just uses the entity URI supplied by the client.
Once the subscription is accepted, the Focus responds to it, and then generates a notification.
Even though these are two independent dialogs, the Focus terminates the subscription dialog when the signaling dialog is terminated.
In dial-in mode, the client sends addUser to the conferencing server (with the message being proxied by the Focus) to request permission to create a session with it. The client needs to present this cookie when establishing a connection with the Web Conferencing Edge Server. The client needs to present this cookie when establishing a connection with the Web Conferencing Server.
In this case, the command is forked by the Focus and sent to both the A\V Conferencing Server and the Web Conferencing Server. They can reside on the same machine as the Web Conferencing Server (as is the case for Office Communications Server2007 Standard Edition) or on different (dedicated) file servers (as is the case recommended for Office Communications Server 2007 Enterprise Edition). User uploaded content includes PowerPoint presentation files, MODI documents, handouts, and snapshot slides. The uploaded content is hosted by the IIS; the Web Conferencing Server sends URL to the content and an encryption key to clients so that clients can download and decrypt the content. There are two features in Office Communications Server that, when combined, provide compliance for on-premise conferencing. Unlike the metadata and content file shares, the compliance file share stores compliance logs and contents unencrypted.
Under each conference ID folder, the content folder stores all content upload activities for uploaded contents, with the original uploaded files going to the content-upload directory. These two factors make it difficult for administrators to examine or move the content of a particular conference. The DMInsider.exe tool helps Microsoft Office Communications Server 2007 administrators find and view conference content managed by the Web Conferencing Server. It is useful for administrators to move a user’s conference content when the user’s SIP URI is changed. The conference organizer’s meeting policy controls the conference and applies to all meeting participants.
Administrators can assign meeting policy globally—that is, assign one meeting policy for all users hosted on all pools in the same Active Directory forest. If you install Office Communications Server 2007 in an environment in which a pre-release version of Office Communications Server 2007 was installed, the default will continue to be 256 Colors for all servers in the environment.
This option is generally not selected if there are concerns about the bandwidth required for IP audio.
Enabling anonymous conferences separately from the meeting policy enables customers to specify a global meeting policy for all users in the enterprise, but it only gives selected users the privilege to invite anonymous users. The technical details behind Web conferencing walks through the life cycle of a typical conference and also explains the client joining process and content management by the Web Conferencing Server.

The Resource Kit provides in-depth technical guidance concerning architecture, deployment, security, administration, performance tuning, and troubleshooting Office Communications Server 2007.
However, the SIP invite cannot be successfully routed because there is no federated link between her own Office Communications Server domain and the conference organizer’s Office Communications Server domain (indicated by the SIP 504 response to the SIP INVITE).
In the addUser response, the conferencing server responds with connection information that is used by the client to establish signaling and media sessions. An mcuUri attribute must be present in the addUser element, and it specifies the MCU (conferencing server) to which this request should be routed to. Moreover, a successful C3P request is usually followed by the conferencing servers sending a C3P notification containing the updated conference state.
The content file share, on the other hand, can be accessed by the conferencing client indirectly via IIS—an IIS virtual directory is created and linked to the content file share when the Office Communications Server Web component is installed so that the client can access the files in the content file share via HTTPs. User-generated content refers to content that does not come from an original file but instead is created in the conference.
The encryption key and metadata information, such as the user SIP URI, are saved in an encrypted metadata XML file under the metadata folder for the conference. Existing conferences are immediately terminated if at any point in time the Web Conferencing Server must access the compliance file share for any reason. This makes it difficult for administrators to locate the conference content folders for a particular organizer. The meeting policy of other participants does not affect what the participants can or cannot do in the conference. Preventing native format increases security because the original source is unavailable and cannot be modified. You should change the setting for these two policies on all servers in your environment to either True Color (24 Bit), which is recommended for the best meeting experience, or High Color (16 Bit).
Such technical understanding is essential for administrators who need to implement, configure, and troubleshoot on-premise conferencing in Office Communications Server.
For a Web Conferencing Server that uses PSOM instead of SIP, this takes the form of supplying a suitable URL that the client understands. On receipt of this notification, the Focus updates the conference state and generates a notification to all clients.
The Web Conferencing Server requires write privileges to the content file share, while IIS requires only read rights to the share. Because sensitive information such as the encryption key is stored under this folder, the administrator should give read and write permissions to this folder just to the users group that runs the Web Conferencing Server. The generated file name along with the original file name are both stored in the corresponding metadata file. These include annotations, Poll content, question-and-answer content, shared notes, text slides, Web slides, and so on.
The Web Conferencing Server needs write permissions, and only authorized users should have read or write permissions. For example, Ben is configured with a meeting policy that has IP audio enabled and John is configured with a default meeting policy that has IP audio disabled. In such a case, administrators select a meeting policy for each user as part of the user options. Original documents are not affected by the color definition settings when viewed outside of a meeting.
The ‘ft’ folder stores all the handouts—the files that are natively transferred without any conversion—in encrypted form. As an attendee of Ben’s meeting, John can use IP audio because the meeting uses Ben’s meeting policy.
On the other hand, when John organizes a conference, all participants in the conference cannot use IP audio because John’s meeting policy applies in that case. THESE VERY SAME ENFORCEMENT AGENCIES, WHO HAVE SWORN TO PROTECT AND SERVE, OUR COUNTRY, AND CITIZENS ,ARE BUT SOME, OF THE CORRUPT,GREEDY TRAITORS .ENGAGED IN THE TYRANNY AND TORTURE. The school district has moved to a biometric identification program, saying students will no longer have to use an ID card to buy lunch.A  BIOMETRICS TO TRACK YOUR KIDS!!!!!i»?i»?A TARGETED INDIVIDUALS, THE GREEDY CRIMINALS ARE NOW CONDONING THEIR TECH!
Paul Weindling, history of medicine professor at Oxford Brookes University, describes his search for the lost victims of Nazi experiments.
The chairman of the board at ESL a€” then proprietor of the desert wasteland in Nevada known as a€?Area 51a€? a€” was William Perry, who would be appointed secretary of defense several years later.
EUCACH.ORG PanelIn a 2-hour wide-ranging Panel with Alfred Lambremont Webre on the Transhumanist Agenda, Magnus Olsson, Dr. Henning Witte, and Melanie Vritschan, three experts from the European Coalition Against Covert Harassment, revealed recent technological advances in human robotization and nano implant technologies, and an acceleration of what Melanie Vritschan characterized as a a€?global enslavement programa€?.Shift from electromagnetic to scalar wavesThese technologies have now shifted from electromagnetic wave to scalar waves and use super quantum computers in the quantum cloud to control a€?pipesa€? a reference to the brains of humans that have been taken over via DNA, via implants that can be breathed can breach the blood-brain barrier and then controlled via scalar waved on a super-grid. Eventually, such 'subvocal speech' systems could be used in spacesuits, in noisy places like airport towers to capture air-traffic controller commands, or even in traditional voice-recognition programs to increase accuracy, according to NASA scientists."What is analyzed is silent, or sub auditory, speech, such as when a person silently reads or talks to himself," said Chuck Jorgensen, a scientist whose team is developing silent, subvocal speech recognition at NASA Ames Research Center in California's Silicon Valley.
We numbered the columns and rows, and we could identify each letter with a pair of single-digit numbers," Jorgensen said. People in noisy conditions could use the system when privacy is needed, such as during telephone conversations on buses or trains, according to scientists."An expanded muscle-control system could help injured astronauts control machines. If an astronaut is suffering from muscle weakness due to a long stint in microgravity, the astronaut could send signals to software that would assist with landings on Mars or the Earth, for example," Jorgensen explained.
These are processed to remove noise, and then we process them to see useful parts of the signals to show one word from another," Jorgensen said.After the signals are amplified, computer software 'reads' the signals to recognize each word and sound.
Our Research and Development Division has been in contact with the Federal Bureau of Prisons, the California Department of Corrections, the Texas Department of Public Safety, and the Massachusetts Department of Correction to run limited trials of the 2020 neural chip implant.
We have established representatives of our interests in both management and institutional level positions within these departments. Federal regulations do not yet permit testing of implants on prisoners, but we have entered nto contractual agreements with privatized health care professionals and specified correctional personnel to do limited testing of our products.
We need, however, to expand our testing to research how effective the 2020 neural chip implant performs in those identified as the most aggressive in our society.
In California, several prisoners were identified as members of the security threat group, EME, or Mexican Mafia. They were brought to the health services unit at Pelican Bay and tranquilized with advanced sedatives developed by our Cambridge,Massachussetts laboratories. The results of implants on 8 prisoners yielded the following results: a€?Implants served as surveillance monitoring device for threat group activity. However, during that period substantial data was gathered by our research and development team which suggests that the implants exceed expected results.
One of the major concerns of Security and the R & D team was that the test subject would discover the chemial imbalance during the initial adjustment period and the test would have to be scurbbed. However, due to advanced technological developments in the sedatives administered, the 48 hour adjustment period can be attributed t prescription medication given to the test subjects after the implant procedure. One of the concerns raised by R & D was the cause of the bleeding and how to eliminate that problem. Unexplained bleeding might cause the subject to inquire further about his "routine" visit to the infirmary or health care facility. Security officials now know several strategies employed by the EME that facilitate the transmission of illegal drugs and weapons into their correctional facilities. One intelligence officier remarked that while they cannot use the informaiton that have in a court of law that they now know who to watch and what outside "connections" they have.
The prison at Soledad is now considering transferring three subjects to Vacaville wher we have ongoing implant reserach. Our technicians have promised that they can do three 2020 neural chip implants in less than an hour. Soledad officials hope to collect information from the trio to bring a 14 month investigation into drug trafficking by correctional officers to a close. Essentially, the implants make the unsuspecting prisoner a walking-talking recorder of every event he comes into contact with. There are only five intelligence officers and the Commisoner of Corrections who actually know the full scope of the implant testing.
In Massachusetts, the Department of Corrections has already entered into high level discussion about releasing certain offenders to the community with the 2020 neural chip implants. Our people are not altogether against the idea, however, attorneys for Intelli-Connection have advised against implant technology outside strick control settings.
While we have a strong lobby in the Congress and various state legislatures favoring our product, we must proceed with the utmost caution on uncontrolled use of the 2020 neural chip.
If the chip were discovered in use not authorized by law and the procedure traced to us we could not endure for long the resulting publicity and liability payments.
Massachusetts officials have developed an intelligence branch from their Fugitive Task Force Squad that would do limited test runs under tight controls with the pre-release subjects. Correctons officials have dubbed these poetnetial test subjects "the insurance group." (the name derives from the concept that the 2020 implant insures compliance with the law and allows officials to detect misconduct or violations without question) A retired police detective from Charlestown, Massachusetts, now with the intelligence unit has asked us to consider using the 2020 neural chip on hard core felons suspected of bank and armored car robbery.
He stated, "Charlestown would never be the same, we'd finally know what was happening before they knew what was happening." We will continue to explore community uses of the 2020 chip, but our company rep will be attached to all law enforcement operations with an extraction crrew that can be on-site in 2 hours from anywhere at anytime. We have an Intelli-Connection discussion group who is meeting with the Director of Security at Florence, Colorado's federal super maximum security unit. The initial discussions with the Director have been promising and we hope to have an R & D unit at this important facilitly within the next six months.
Napolitano insisted that the department was not planning on engaging in any form of ideological profiling.
I will tell him face-to-face that we honor veterans at DHS and employ thousands across the department, up to and including the Deputy Secretary," Ms.
Steve Buyer of Indiana, the ranking Republican on the House Committee on Veterans' Affairs, called it "inconceivable" that the Obama administration would categorize veterans as a potential threat.

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