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• Remote file access.

  - by Rob Rob

  Hi, We're needing to provide remote (read/write) access to a number of files on our network to several users (some technical, some non-technical) who will be running Windows. The non technical users will need to be able to access their files in an easy to use manner. From previous experience, we could do this with: (some sort of) VPN SSH and something like Dokan (i've only previously done this on linux with sshfs) WebDav FTP VPN and SSH access are more open that we need at present, so I'm leaning towards webdav, however I only have limited experience of it (setting up an SVN server several years ago), but my understanding is that users can access it through windows explorer. FTP I haven't had much experience of, as I've always used SFTP via ssh - but i'd imagine we could make this work in a similar way to ssh. So my question is - have I missed any obvious candidates for this task, or if webdav is (or isn't) suitable what are the security implications of using it for this (obviously https will be used for the transfers, etc). Thanks, Rob.

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• Building Interactive User Interfaces with Microsoft ASP.NET AJAX: Refreshing An UpdatePanel With Jav

  The ASP.NET AJAX UpdatePanel provides a quick and easy way to implement a snappier, AJAX-based user interface in an ASP.NET WebForm. In a nutshell, UpdatePanels allow page developers to refresh selected parts of the page (instead of refreshing the entire page). Typically, an UpdatePanel contains user interface elements that would normally trigger a full page postback - controls like Buttons or DropDownLists that have their AutoPostBack property set to True. Such controls, when placed inside an UpdatePanel, cause a partial page postback to occur. On a partial page postback only the contents of the UpdatePanel are refreshed, avoiding the "flash" of having the entire page reloaded. (For a more in-depth look at the UpdatePanel control, refer back to the Using the UpdatePanel installment in this article series.) Triggering a partial page postback refreshes the contents within an UpdatePanel, but what if you want to refresh an UpdatePanel's contents via JavaScript? Ideally, the UpdatePanel would have a client-side function named something like Refresh that could be called from script to perform a partial page postback and refresh the UpdatePanel. Unfortunately, no such function exists. Instead, you have to write script that triggers a partial page postback for the UpdatePanel you want to refresh. This article looks at how to accomplish this using just a single line of markup/script and includes a working demo you can download and try out for yourself. Read on to learn more! Read More >Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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• ZFS SAS/SATA controller recommendations

  - by ewwhite

  I've been working with OpenSolaris and ZFS for 6 months, primarily on a Sun Fire x4540 and standard Dell and HP hardware. One downside to standard Perc and HP Smart Array controllers is that they do not have a true "passthrough" JBOD mode to present individual disks to ZFS. One can configure multiple RAID 0 arrays and get them working in ZFS, but it impacts hotswap capabilities (thus requiring a reboot upon disk failure/replacement). I'm curious as to what SAS/SATA controllers are recommended for home-brewed ZFS storage solutions. In addition, what effect does battery-backed write cache (BBWC) have in ZFS storage?

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• Object model design: collections on classes

  - by Luke Puplett

  Hi all, Consider Train.Passengers, what type would you use for Passengers where passengers are not supposed to be added or removed by the consuming code? I'm using .NET Framework, so this discussion would suit .NET, but it could apply to a number of modern languages/frameworks. In the .NET Framework, the List is not supposed to be publicly exposed. There's Collection and ICollection and guidance, which I tend to agree with, is to return the closest concrete type down the inheritance tree, so that'd be Collection since it is already an ICollection. But Collection has read/write semantics and so possibly it should be a ReadOnlyCollection, but its arguably common sense not to alter the contents of a collection that you don't have intimate knowledge about so is it necessary? And it requires extra work internally and can be a pain with (de)serialization. At the extreme ends I could just return Person[] (since LINQ now provides much of the benefits that previously would have been afforded by a more specified collection) or even build a strongly-typed PersonCollection or ReadOnlyPersonCollection! What do you do? Thanks for your time. Luke

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• Modify Okular highlight to automatically copy highlighted text into comment

  - by JDD

  Despite what old SE questions state, the PDF software Okular can now write annotations directly to the PDF. This makes it very useful in conjunction with Docear for annotating academic literature. However, Docear imports annotations from the comments, rather than importing from highlighted text. In Okular, when you highlight text it can then be clicked to reveal a comments bubble, which is empty by default. Copying the highlighted text into the resulting bubble allows it to be imported into Docear, but this is laborious. How can I modify the highlight tool to automatically copy the highlighted text into the resulting comment bubble?

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• Windows 7 Disk Management Spanned Volume vs Striped Volume

  - by Kairan

  Im looking for a reason why a person would use a Spanned volume rather than a Striped volume? If my understanding is correct Striped: Faster read/write speed than spanned, but I "assume" more wear+tear Spanned: No speed benefit like striped, but data is written sequentially and fills up Drive1 before filling up Drive2, so it saves on wear+tear Beyond that Im not sure if there is any other deciding factor on which to use. Definition found below: A striped volume uses the free space on more than one physical hard disk to create a bigger volume. Unlike a spanned volume, a striped volume writes across all volumes in the stripe in small blocks, distributing the load across the disks in the volume. The portions of disk used to create the volume need to be the same size; the size of the smallest free space included in the striped volume will determine.

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• Best way to create a common folder when creating new users that is a drop box, readable and writeable by all users

  - by Michael Prescott

  What is the best way to provide a common drop box for all users, so that any user that is a part of a particular group can read and write to and from the directory? I thought of creating a directory outside of the /home directory, creating a group specifically for accessing the directory, then adding all desired users to that group, and finally adding a symlink to the home directory of each user that points to the drop box folder. That seems like a lot of work. Is there a better way? I'm running ubuntu 10.04 LTS.

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• Search for and print only matched pattern

  - by Ayman

  I have some huge xml text files. I need to write a script to find and print a specific tag only. I tried sed and grep but they both return the whole line. Using SunOS 5.x, so not all linux commands may work. grep -o is not available. The 'xml' file is not actually one huge xml document, but each line is a separate xml document, with just a few tags, not even nested. And the structure is fairly easy, so full xml parsers is not needed, and probably would not work. I was looking for sed, awk, or some other one liners, but could not get them to work, and they are both relatively new to me.

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• How do I install Flash Player 11 debug version in 11.10?

  - by shanethehat

  I want to replace my existing browser plugin Flash Player with the debug version, and update to FP11 while I'm at it. I also want to install the debug version of the projector player and make it the default player for SWF files outside of the browser. First the browser plugin version. I've downloaded the installer from the official site, but I'm not sure what to do with the contents. There is a usr folder, and I presume that I am to write the contents of this to /usr. There is also a file called libflashplayer.so, and I have no idea what to do with that. For download for the projector player has confused me further because it only contains one file: flashplayerdebugger. I don't know what to do with this. If there is a way to install these softwares through apt-get or the Software Center I would love to hear about it, I have only found solutions for the standard player, but otherwise could someone please tell me what to do with these files? Update Ok, so I've figured out that if I dump the flashplayerdebugger file into /usr/lib/ I can point Eclipse at it and compile and test SWFs as expected from inside Eclipse. But how can I set that application as the default player when I select an SWF in Nautilus?

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• Get the Information You Need. Delivered.

  - by Get Proactive Customer Adoption Team

  Untitled Document Don’t Take Chances with Alerts—Get Hot Topics When Oracle Support publishes an alert, how do you find out about it? I can see any number of ways you might stumble onto an alert that you need. For example, if you are visiting My Oracle Support in search of answers under the Knowledge tab and happen to notice, and click on, the Alert tab the under the Knowledge Article region, you might see an alert listed for one of the products you use. There are other ways… like subscribing to one of the Oracle Blogs and finding the alert in your RSS feed because the blogger decided to write up that topic for the latest post. I’m sure your colleagues sometimes pass on critical alerts for your products, I hope, giving you the information before you needed it. Well, no matter how you learn about an alert, the important point is that you get the correct information in a timely way. Right? I must admit, the ‘magic’ required to find out via these methods makes me nervous. Rather than leave it to chance, I think you need a more reliable way to stay informed and receive alerts for your products when Oracle publishes them. You may not be aware of it, but there is a better way. Oracle Premier Support Customers can leverage the “Hot Topics E-Mail.” You select the products and topics that interest you. Based on your choices, the system sends you the support related information when Oracle Support publishes it. This way you and I can both relax, knowing you’ll have ready access to the alerts you need, and enjoy the breadth of support related information you choose to subscribe to. This can include recently updated Knowledge base articles, new bugs, and product news. If I’ve convinced you, you will want to know how to set up and subscribe to the Hot Topics E-Mail. The complete guide, Doc ID 793436.1, is waiting for you. Follow the instructions in the document, and you will always stay on top of the latest information from Oracle Support.

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• Properties!Details (run-time length)

  - by user33666

  When you take clips and turn them into computer playable files, whether .TS or .MOV or .MPG, .MP4, .VOB, etc., do you as the producer actually manually write into some field in a "Details" section of your video editor what the video length is, so that it can be read by the eventual user's video player? Or is this activity performed automatically by the video editor? I'm asking because: when a mouse is passed over a file line item in Windows 7 Shell (Windows Explorer) a little box is displayed where the mouse meets the file line item and provides simple name and size properties, one of which (if it's a media file) is run length. How does that figure get there into the file (later to be read be Windows or OS X)? Thanks for any info.

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• Declarative programming vs. Imperative programming

  - by EpsilonVector

  I feel very comfortable with Imperative programming. I never have trouble expressing algorithmically what I want the computer to do once I figured out what is it that I want it to do. But when it comes to languages like SQL or Relational Algebra I often get stuck because my head is too used to Imperative programming. For example, suppose you have the relations band(bandName, bandCountry), venue(venueName, venueCountry), plays(bandName, venueName), and I want to write a query that says: all venueNames such that for every bandCountry there's a band from that country that plays in venue of that name. In my mind I immediately go "for each venueName iterate over all the bandCountries and for each bandCountry get the list of bands that come from it. If none of them play in venueName, go to next venueName. Else, at the end of the bandCountries iteration add venueName to the set of good venueNames". ...but you can't talk like that in SQL and I actually need to think about how to formulate this, with the intuitive Imperative solution constantly nagging in the back of my head. Did anybody else had this problem? How did you overcome this? Did you figured out a paradigm shift? Made a map from Imperative concepts to SQL concepts to translate Imperative solutions into Declarative ones? Read a good book? PS I'm not looking for a solution to the above query, I did solve it.

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• Depth interpolation for z-buffer, with scanline

  - by Twodordan

  I have to write my own software 3d rasterizer, and so far I am able to project my 3d model made of triangles into 2d space: I rotate, translate and project my points to get a 2d space representation of each triangle. Then, I take the 3 triangle points and I implement the scanline algorithm (using linear interpolation) to find all points[x][y] along the edges(left and right) of the triangles, so that I can scan the triangle horizontally, row by row, and fill it with pixels. This works. Except I have to also implement z-buffering. This means that knowing the rotated&translated z coordinates of the 3 vertices of the triangle, I must interpolate the z coordinate for all other points I find with my scanline algorithm. The concept seems clear enough, I first find Za and Zb with these calculations: var Z_Slope = (bottom_point_z - top_point_z) / (bottom_point_y - top_point_y); var Za = top_point_z + ((current_point_y - top_point_y) * Z_Slope); Then for each Zp I do the same interpolation horizontally: var Z_Slope = (right_z - left_z) / (right_x - left_x); var Zp = left_z + ((current_point_x - left_x) * Z_Slope); And of course I add to the zBuffer, if current z is closer to the viewer than the previous value at that index. (my coordinate system is x: left - right; y: top - bottom; z: your face - computer screen;) The problem is, it goes haywire. The project is here and if you select the "Z-Buffered" radio button, you'll see the results... (note that the rest of the options before "Z-Buffered" use the Painter's algorithm to correctly order the triangles. I also use the painter's algorithm -only- to draw the wireframe in "Z-Buffered" mode for debugging purposes) PS: I've read here that you must turn the z's into their reciprocals (meaning z = 1/z) before you interpolate. I tried that, and it appears that there's no change. What am I missing? (could anyone clarify, precisely where you must turn z into 1/z and where to turn it back?)

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• Trying to find the life expectancy of an unused flash card like SD

  - by wsams

  I read in the What's the life expectancy of an SD card? post SD cards are rated to hold data at something like 10 years sitting idle. I recall reading (not sure where) about re-energizing cards by occasionally inserting into a reader. Everything I read rates in read/write cycles and not physical decay. I'm wonder if buying a new sd card for every photo shoot would be beneficial if I could store the cards in a lock box? I was hoping for something much longer. Does anyone else agree with 10 years or maybe something more?

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• User Permissions: Daemon and User

  - by Eddie Parker

  Hello: I often run into this issue on Linux, and I'd love to know the proper way of solving it. Say I have a daemon running. In my example, I'll use LigHTTPD, a webserver. Some software, like Wordpress, enjoys having read/write access to files for updating applications via a web interface, which I think is quite handy. At the same time, I enjoy being able to hack on my files using vim, using my local user account, 'eddie'. Herein lies the rub. Either I chown everything to lighttpd or eddie and a shared group between them both, and chmod it 660, or perpetually sudo to edit the damned things. The former isn't a bad solution, until I create a new file in which case I have to remember to chmod it appropriately, or create some hack like a cron job that chmods for me. Is there an easier way of doing this? Have I overlooked something? Cheers, -e-

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• Problem modifying read-only files on Samba NAS

  - by Felix Dombek

  Hi, I have files on a Samba server in the local company network and accessing them from a Windows Vista machine. Usually, if I want to delete a directory containing write-protected (read-only) files, Windows would ask "This file is read-only, are you sure?". However, when I do this with a dir on the server, Windows just tells me that I need permissions. The workaround is to remove the read-only flag from the directory and all contained files and then deleting. However, I have a TortoiseSVN versioned dir on the server, and the .svn dirs contain read-only files. I need to remove the read-only flags from the dir before every commit, or else it fails. This is quite distressing and shouldn't be so. Does someone know how to attack this problem? (If someone knows how to tell TortoiseSVN to not make its files read-only, that would probably be ok as well) ... Thanks!

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• DHCLIENT.CONF System variables.

  - by Dr I

  Hello, I've just a little question. My DNS Servers are updated by our DHCP Server (Microsoft Windows 2003 R2 SP2). My clients are Debian Linux Distro's, and I have to modify my DHCLIENT.CONF file on it to send his Full Qualified Hostname. BUT I've about 1600 computers and I don't want to modify each client one by one, then, Could I for exemple use a System Variable on the Config file? Exemple: #DHCLIENT CONF; send "$hostname" where $hostname variable is the alias write on BASHRC for the hostname -f command. If you need any more informations just tell me.

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• What is the purpose of netcat's "-w timeout" option when ssh tunneling?

  - by jrdioko

  I am in the exact same situation as the person who posted another question, I am trying to tunnel ssh connections through a gateway server instead of having to ssh into the gateway and manually ssh again to the destination server from there. I am trying to set up the solution given in the accepted answer there, a ~/.ssh/config that includes: host foo User webby ProxyCommand ssh a nc -w 3 %h %p host a User johndoe However, when I try to ssh foo, my connection stays alive for 3 seconds and then dies with a Write failed: Broken pipe error. Removing the -w 3 option solves the problem. What is the purpose of that -w 3 in the original solution, and why is it causing a Broken pipe error when I use it? What is the harm in omitting it?

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• How is time measured in computer systems?

  - by DRK3

  Something I have been puzzled about is this: how exactly does a computer regulate and tell time? For example: if I were to write a program that did this: Do 2+2 then wait 5 seconds How does the processor know what "5 seconds" is? How is time measured in computer systems? Is there a specific chip for that sole purpose? How does it work? Thanks for any replies; I'm really interested in computer science, and would love any help you could give me =D.

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• www.foobar.com works but foobar.com results in a 'Server not found' error

  - by Homunculus Reticulli

  I have just setup a minimal (hopefully secure? - comments welcome) apache website using the following configuration file: <VirtualHost *:80> ServerName foobar.com ServerAlias www.foobar.com ServerAdmin [email protected] DocumentRoot /path/to/websites/foobar/web DirectoryIndex index.php # CustomLog with format nickname LogFormat "%h %l %u %t \"%r\" %>s %b" common CustomLog "|/usr/bin/cronolog /var/log/apache2/%Y%m.foobar.access.log" common LogLevel notice ErrorLog "|/usr/bin/cronolog /var/log/apache2/%Y%m.foobar.errors.log" <Directory /> AllowOverride None Order Deny,Allow Deny from all </Directory> <Directory /path/to/websites/> Options -Indexes FollowSymLinks MultiViews AllowOverride None Order allow,deny allow from all </Directory> </VirtualHost> I am able to access the website by using www.foobar.com, however when I type foobar.com, I get the error 'Server not found' - why is this? My second question concerns the security implications of the directive: <Directory /path/to/websites/> Options -Indexes FollowSymLinks MultiViews AllowOverride None Order allow,deny allow from all </Directory> in the configuration above. What exactly is it doing, and is it necessary?. From my (admitedly limited) understanding of Apache configuration files, this means that anyone will be able to access (write to?) the /path/to/websites/ folder. Is my understanding correct? - and if yes, how is this not a security risk?

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• vsftpd not allowing uploads. 550 response

  - by Josh

  I've set vsftpd up on a centos box. I keep trying to upload files but I keep getting "550 Failed to change directory" and "550 Could not get file size." Here's my vsftpd.conf # The default compiled in settings are fairly paranoid. This sample file # loosens things up a bit, to make the ftp daemon more usable. # Please see vsftpd.conf.5 for all compiled in defaults. # # READ THIS: This example file is NOT an exhaustive list of vsftpd options. # Please read the vsftpd.conf.5 manual page to get a full idea of vsftpd's # capabilities. # # Allow anonymous FTP? (Beware - allowed by default if you comment this out). anonymous_enable=YES # # Uncomment this to allow local users to log in. local_enable=YES # # Uncomment this to enable any form of FTP write command. write_enable=YES # # Default umask for local users is 077. You may wish to change this to 022, # if your users expect that (022 is used by most other ftpd's) local_umask=022 # # Uncomment this to allow the anonymous FTP user to upload files. This only # has an effect if the above global write enable is activated. Also, you will # obviously need to create a directory writable by the FTP user. anon_upload_enable=YES # # Uncomment this if you want the anonymous FTP user to be able to create # new directories. anon_mkdir_write_enable=YES anon_other_write_enable=YES # # Activate directory messages - messages given to remote users when they # go into a certain directory. dirmessage_enable=YES # # The target log file can be vsftpd_log_file or xferlog_file. # This depends on setting xferlog_std_format parameter xferlog_enable=YES # # Make sure PORT transfer connections originate from port 20 (ftp-data). connect_from_port_20=YES # # If you want, you can arrange for uploaded anonymous files to be owned by # a different user. Note! Using "root" for uploaded files is not # recommended! #chown_uploads=YES #chown_username=whoever # # The name of log file when xferlog_enable=YES and xferlog_std_format=YES # WARNING - changing this filename affects /etc/logrotate.d/vsftpd.log #xferlog_file=/var/log/xferlog # # Switches between logging into vsftpd_log_file and xferlog_file files. # NO writes to vsftpd_log_file, YES to xferlog_file xferlog_std_format=NO # # You may change the default value for timing out an idle session. #idle_session_timeout=600 # # You may change the default value for timing out a data connection. #data_connection_timeout=120 # # It is recommended that you define on your system a unique user which the # ftp server can use as a totally isolated and unprivileged user. #nopriv_user=ftpsecure # # Enable this and the server will recognise asynchronous ABOR requests. Not # recommended for security (the code is non-trivial). Not enabling it, # however, may confuse older FTP clients. #async_abor_enable=YES # # By default the server will pretend to allow ASCII mode but in fact ignore # the request. Turn on the below options to have the server actually do ASCII # mangling on files when in ASCII mode. # Beware that on some FTP servers, ASCII support allows a denial of service # attack (DoS) via the command "SIZE /big/file" in ASCII mode. vsftpd # predicted this attack and has always been safe, reporting the size of the # raw file. # ASCII mangling is a horrible feature of the protocol. #ascii_upload_enable=YES #ascii_download_enable=YES # # You may fully customise the login banner string: #ftpd_banner=Welcome to blah FTP service. # # You may specify a file of disallowed anonymous e-mail addresses. Apparently # useful for combatting certain DoS attacks. #deny_email_enable=YES # (default follows) #banned_email_file=/etc/vsftpd/banned_emails # # You may specify an explicit list of local users to chroot() to their home # directory. If chroot_local_user is YES, then this list becomes a list of # users to NOT chroot(). #chroot_list_enable=YES # (default follows) #chroot_list_file=/etc/vsftpd/chroot_list # # You may activate the "-R" option to the builtin ls. This is disabled by # default to avoid remote users being able to cause excessive I/O on large # sites. However, some broken FTP clients such as "ncftp" and "mirror" assume # the presence of the "-R" option, so there is a strong case for enabling it. #ls_recurse_enable=YES # # When "listen" directive is enabled, vsftpd runs in standalone mode and # listens on IPv4 sockets. This directive cannot be used in conjunction # with the listen_ipv6 directive. listen=YES # This directive enables listening on IPv6 sockets. To listen on IPv4 and IPv6 # sockets, you must run two copies of vsftpd whith two configuration files. # Make sure, that one of the listen options is commented !! #listen_ipv6=YES pam_service_name=vsftpd userlist_enable=YES tcp_wrappers=YES log_ftp_protocol=YES banner_file=/etc/vsftpd/issue local_root=/var/www guest_enable=YES guest_username=ftpusr ftp_username=nobody

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• July, the 31 Days of SQL Server DMO’s – Day 18 (sys.dm_io_virtual_file_stats)

  - by Tamarick Hill

  The sys.dm_io_virtual_file_stats Dynamic Management Function is used to return IO statistic information about each of your database files on your server. As input parameters, this function takes a database_id and a file_id. If you want to return IO statistic information for all files, you can simply pass in NULL values for both of these. Let’s have a look at this function  and examine its results: SELECT db_name(database_id) DatabaseName, * FROM sys.dm_io_virtual_file_stats(NULL, NULL) The first column in the result set is the DatabaseName which is just a column I created using the db_name() system function and the database_id column from this function. Next we have a file_id which represent the ID for the file, whether it be a data file or transaction log file. The ‘sample_ms’ column represents the total time in milliseconds that the instance has been up and running. Next we have the ‘num_of_reads’, ‘num_of_bytes_read’, and later ‘num_of_writes’, and ‘num_of_bytes_written’. These columns represent the number of reads or writes and number of bytes read or written against a particular file. These columns are beneficial when determining how often a particular file is being accessed. The ‘io_stall_read_ms’ and io_stall_write_ms’ columns each represent the the total time in milliseconds that users have had to wait for reads or writes against a file respectively. The ‘io_stall’ column is the sum of both read and write io stalls. The ‘size_on_disk_bytes’ column represents the size of the respective file on your disk subsystem. Lastly the ‘file_handle’ column is simply the Windows File handle. This Dynamic Management Function is useful when you are needing to analyze your database files for the purposes of segregating high IO databases. This DMF gives you a good view of which of your database files are being accessed the most and which ones may be generating the largest IO stalls. These could be your best candidates for moving into separate IO channels. For more information about this DMF, please see the below Books Online link: http://msdn.microsoft.com/en-us/library/ms190326.aspx Follow me on Twitter @PrimeTimeDBA

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• NLP - Queries using semantic wildcards in full text searching, maybe with Lucene?

  - by Zsolt

  Let's say I have a big corpus (for example in english or an arbitrary language), and I want to perform some semantic search on it. For example I have the query: "Be careful: [art] armada of [sg] is coming to [do sg]!" And the corpus contains the following sentence: "Be careful: an armada of alien ships is coming to destroy our planet!" It can be seen that my query string could contain "semantic placeholders", such as: [art] - some placeholder for articles (for example a / an in English) [sg], [do sg] - some placeholders for NPs and VPs (subjects and predicates) I would like to develop a library which would be capable to handle these queries efficiently. I suspect that some kind of POS-tagging would be necessary for parsing the text, but because I don't want to fully reimplement an already existing full-text search engine to make it work, I'm considering that how could I integrate this behaviour into a search engine like Lucene? I know there are SpanQueries which could behave similarly in some cases, but as I can see, Lucene doesn't do any semantic stuff with stored texts. It is possible to implement a behavior like this? Or do I have to write an own search engine?

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• Booby Traps and Locked-in Kids: An Interview with a Safecracker

  - by Jason Fitzpatrick

  While most of our articles focus on security of the digital sort, this interview with a professional safecracker is an interesting look the physical side of securing your goods. As part of their Interviews with People Who Have Interesting or Unusual Jobs series over at McSweeney’s, they interviewed Ken Doyle, a professional a locksmithing and safecracking veteran with 30 years of industry experience. The interview is both entertaining and an interesting read. One of the more unusual aspects of safecracking he highlights: Q: Do you ever look inside? A: I NEVER look. It’s none of my business. Involving yourself in people’s private affairs can lead to being subpoenaed in a lawsuit or criminal trial. Besides, I’d prefer not knowing about a client’s drug stash, personal porn, or belly button lint collection. When I’m done I gather my tools and walk to the truck to write my invoice. Sometimes I’m out of the room before they open it. I don’t want to be nearby if there is a booby trap. Q: Why would there be a booby trap? A: The safe owner intentionally uses trip mechanisms, explosives or tear gas devices to “deter” unauthorized entry into his safe. It’s pretty stupid because I have yet to see any signs warning a would-be culprit about the danger. HTG Explains: Why Linux Doesn’t Need Defragmenting How to Convert News Feeds to Ebooks with Calibre How To Customize Your Wallpaper with Google Image Searches, RSS Feeds, and More

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• Meet SQLBI at PASS Summit 2012 #sqlpass

  - by Marco Russo (SQLBI)

  Next week I and Alberto Ferrari will be in Seattle at PASS Summit 2012. You can meet us at our sessions, at a book signing and hopefully watching some other session during the conference. Here are our appointments: Thursday, November 08, 2012, 10:15 AM - 11:45 AM – Alberto Ferrari – Room 606-607 Querying and Optimizing DAX (BIA-321-S) Do you want to learn how to write DAX queries and how to optimize them? Don’t miss this session! Thursday, November 08, 2012, 12:00 PM - 12:30 PM – Bookstore Book signing event at the Bookstore corner with Alberto Ferrari, Marco Russo and Chris Webb Visit the bookstore and sign your copy of our Microsoft SQL Server 2012 Analysis Services: The BISM Tabular Model book. Thursday, November 08, 2012, 1:30 PM - 2:45 PM – Marco Russo – Room 611 Near Real-Time Analytics with xVelocity (without DirectQuery) (BIA-312) What’s the latency you can tolerate for your data? Discover what is the limit in Tabular without using DirectQuery and learn how to optimize your data model and your queries for a near real-time analytical system. Not a trivial task, but more affordable than you might think. Friday, November 09, 2012, 9:45 AM - 11:00 AM Parent-Child Hierarchies in Tabular (BIA-301) Multidimensional has a more advanced support for hierarchies than Tabular, but in reality you can do almost the same things by using data modeling, DAX functions and BIDS Helper!  Friday, November 09, 2012, 1:00 PM - 2:15 PM – Marco Russo – Room 612 Inside DAX Query Plans (BIA-403) Discover the query plan for your DAX query and learn how to read it and how to optimize a DAX query by using these information. If you meet us at the conference, stop us and say hello: it’s always nice to know our readers!

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