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• Lucene.NET - Find documents that do not contain a specified field

  - by Brandon

  Let's say I have 2 instance of a class called 'Animal'. Animal has 3 fields: Name, Age, and Type The name field is nullable, so before I insert an instance of Animal as a Lucene indexed document, I check if Animal.Name == null, and if it does, I do not insert it as a field in my document. If I were to retrieve all animals, I would see that the Name field does not exist and I can set its value to null. However, there may be situations where I want to say "Get me all animals that do not have a name specified yet." In this situation I want to retrieve all Lucene.NET documents from my animal index that do not contain the Name field. Is there an easy way to do this with Lucene.NET? I want to stay away from having to perform some sort of hack to check if my name field has a value of 'null'.

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• How can one send commands to the "inner" ssh session?

  - by iconoclast

  Picture a scenario where I'm logged into a server (which we'll call "Wallace") from my local machine, and from there I ssh into another server (which we'll call "Gromit"): laptop ---ssh---> Wallace ---ssh---> Gromit Then the ssh session from Wallace to Gromit hangs, and I want to kill it. If I enter ~. to kill ssh, it kills the ssh session from my laptop to Wallace, because the ~ is intercepted by that ssh session, and the . is taken as a command to kill the session. How do I send a command to the ssh session between Wallace and Gromit? How do I kill my "inner" ssh?

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• How do I get the last value of a column in an Excel spreadsheet?

  - by Chris

  In column A, I have dates. In column B, I have my body weight logged for the day. I add one row to each every day when I weigh myself, so this means the data is sorted by date ascending. The weights, of course, fluctuate (though it would be nice if they would go down every day for my own personal benefit). For a couple of calculations, I want to get the latest (or last) weight entered in column B. Not the max or the min, but the last one entered in the column. I want it to work no many how many rows I enter. I use Excel 2007, if that ends up mattering.

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• How do I understand what the following means?

  - by Runner

  Quoted from here: if (to_end) { /* If we want to scroll to the end, including horizontal scrolling, * then we just create a mark with right gravity at the end of the * buffer. It will stay at the end unless explicitely moved with * gtk_text_buffer_move_mark. */ gtk_text_buffer_create_mark (buffer, "end", &iter, FALSE); /* Add scrolling timeout. */ return g_timeout_add (50, (GSourceFunc) scroll_to_end, textview); } else { /* If we want to scroll to the bottom, but not scroll horizontally, * then an end mark won't do the job. Just create a mark so we can * use it with gtk_text_view_scroll_mark_onscreen, we'll position it * explicitely when needed. Use left gravity so the mark stays where * we put it after inserting new text. */ gtk_text_buffer_create_mark (buffer, "scroll", &iter, TRUE); /* Add scrolling timeout. */ return g_timeout_add (100, (GSourceFunc) scroll_to_bottom, textview); } Though there are quite a few lines of comments, I still don't understand the logic in it,especially, what's the relation between an mark and the position of scroll bar?

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• WCF: Proxy open and close - whaaa?

  - by MikeMalter

  I am maintaing a windows form application using WCF and are using net.tcp internally. The lifecycle of our connections is GET/USE/CLOSE. We are having a problem with the application pool crashing with no trace. In looking at netstat, I can see when I come into the application as we have a login service. However, even though we are creating the proxy in a using statement, the connection in netstat does not go away until I physically close the application. Is this right? Should I be doing something diffent on the client to force the connection to close? So if the connection stays open, does it stay open for the duration of the openTimeout setting and then gets torn down? Thanks.

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• On RouterOS, how will transparent proxying (with DNAT) affect reporting of netflows?

  - by Tim

  I have a box running Mikrotik RouterOS, which is set up to do transparent web proxying, as described here. In short, this means that I have a firewall rule for destination NAT causing any port 80 traffic to get redirected to port 8080 on the router, which is received by the Mikrotik local web proxy. The local web proxy then makes the web request on the client's behalf, in this case to a parent web proxy server (which in turn does the real web request). My question is, how will this two-part process get reported in the logging of traffic flow information (netflows)? Looking at the logged information, what I seem to be seeing is this: One flow recorded from client machine (private IP) to remote proxy (8080) Another flow recorded from router to remote proxy (8080) The original request that the client made to port 80 isn't recorded. I want to write code to analyse traffic usage, so I want to be sure I'm not losing information if I discard the latter of these.

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• Changes to talk/ytalk or alternative chat in the Linux terminal

  - by cascaval

  While looking for a piece of software that provides chat between 2 Linux server users logged in the terminal, I tried talk/ytalk. Unfortuntaley it provides chat between users on separate walls (each user has its own wall) and the messages lack timestamps. Is it possible to set it up so that at least timestamps are provided? Alternatively, is there any other software that could provide one wall on which users write messages prepended with time? Simple chat with messages listed in the order of submission would be ideal: 13:05:48 [bridgekeeper@...]: What is the air-speed velocity of an unladen swallow? 13:06:28 [cascaval@...]: What do you mean? An African or European swallow? I already tried wall and write but they don't fit the bill. OS: Debian 6.0

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• Missing management console for Symantec Antivirus, Corporate Edition

  - by Alex C.

  I work for a small (80 employees) non-profit organization. We have a Windows network with a domain. The file server is running Server 2003. A vendor recently installed Symantec Antivirus, Corporate Edition, ver. 10.1.8.8000. It used to be the case that when I logged in to the file server as administrator, I would see an icon on the desktop that took me to the management console for the antivirus software. I could check logs, statuses of client machines, set policies, etc. That icon is now missing, and I can't find anything relevant under the "Start" menu. There is an entry for Symantec Antivirus, but that only gives me the panel for the client process, not the overall management console for the whole network. I don't want to call the vendor back to fix this (I'm baffled how we lost the icon in the first place). Can someone offer some guidance?

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• How to start wuala on the linux commandline with auto login

  - by mit

  When i start wuala on the linux commandline like this, it logs me in and the folder is mounted: wualamcd login username password enableAutoLogin I can shut it down from another console typing wuala shutdown But how do I actually use the auto login that I just set using the enableAutoLogin switch? What is the command to start it again, so it logs in but does not need the password? I tried wualamcd login and wuala starts but no one gets logged in. Auto login in gui mode works fine. This is 32 bit linux with openjdk 6 JRE.

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• Server 2008 Task Scheduler and a CMD file

  - by Mark Smith

  Task Scheduler - I have a .cmd file I'm trying to execute on a regular basis through Task Scheduler. I've set the task so that it points to the cmd file. I want the task to execute even when no one is logged in. I've set the credentials associated with the task to the local service account. When I execute the task, nothing happens. The Last Run Result shows 0x1, this means it didn't execute properly. When I run the file from a command prompt it executes just fine. Any help out there would be appreciated. I would post the code but it has sensitive information in it and I'm not allowed to let the code outside. Thanks

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• Source code annotation tool

  - by RoToRa

  I'm looking for a tool with which I can annotate source code. I have some 3rd party source code (JavaScript) I need to understand and I don't want to change it (add inline comments) so that line numbers can stay intact (for communication with others), I can avoid accidentally changing something and my annotations stand out compared to the authors comments. Normally I would print the whole thing out an scribble on it, but the code is too long for that and I need to share it per email. I would be great if one could do some like that including being able to create "links" between so places in the code, possibly even visually with a lines or arrows.

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• Playing sound on server using php

  - by Lorenz

  I want to play a sound file on my server using PHP. The PHP script is called by Apache and runs under the user 'nobody', which has by default no access to the speakers. So I created a new user soundoutput which is allowed do play sound and has read permissions for the sound files he should play. If I'm logged in as root, I can play a sound file using echo password | sudo -Su soundoutput mpg321 '/path/to/sound.mp3'. The problem is, that it doesn't work when I'm executing this command using PHP's system_exec. I guess that user nobody isn't allowed to run sudo, but what can I do that he is allowed to do that? Any help appreciated.

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• How to support both DataContractSerializer and XMLSerializer for the same contract on the same host?

  - by Sly

  In our production environment, our WCF services are serialized with the XMLSerializer. To do so our service interfaces have the [XMLSerializerFormat] attribute. Now, we need to change to DataContractSerializer but we must stay compatible with our existing clients. Therefore, we have to expose each service with both serializers. We have one constraint: we don't want to redefine each contract interface twice, we have 50 services contract interfaces and we don't want to have IIncidentServiceXml IIncidentServiceDCS IEmployeeServiceXml IEmployeeServiceDCS IContractServiceXml IContractServiceDCS How can we do that? This is a description of what we have tried so far but I'm willing to try completely different approaches: We tried to create all the endpoints by code in our own ServiceHostFactory class. Basically we create each endpoint twice. The problem is that at runtime, WCF complains that the service has two endpoints with the same contact name but with different ContractDescription instances. The message says we should use different contract names or reuse the same ContractDescription instance.

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• How do I sort a concatenated array in Javascript?

  - by Mayur

  my code: var company=new Array("Kestrel Moon:","BB:"); var basicPri=new Array(1165,1231); for(var i=0;i<15;i++){ var companyTotal=company[i].concat(basicPri[… document.write(""+companyTotal+"") It shows on the screen: Kestrel Moon: 1165 BB: 1231 I want to sort the array so that it goes ascending order of highest value of price so it should display it as: BB: 1231 Kestrel Moon: 1165 A normal sort would not do it as it would sort the prices but the company names stay where they are, how do I sort both arrays so it would display what I want to display? Thank You

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• Outlook Prompting for password from Exchange server in domain environment

  - by jherlitz

  We are running exchange 2007 in a domain environment. We have mostly outlook 2003 clients, but in process of upgrading to outlook 07 over the next couple of weeks. Some users (both 03 & 07) are constantly getting prompted to enter their credentials. The 07 client I was working on this morning states "needs password" in the bottom right corner. It is also speratic, as it will work fine most days but not some other days. The user I was working with this morning, has been working fine. Now it just started up today. I have been googling this, and have found lot's of information, but nothing that has helped yet. A lot of the information out there is for outlook users using a external email account. Being they already logged into the domain, these users should not be prompted for their credentials. Any advice out there?

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• Cannot find code completion and suggestions in Aptana 2.0

  - by Benjamin

  Greetings, I recently started using Aptana 1.5 to work on a site via FTP, developing pages in .php format with a mixture of HTML, CSS, jQuery, and -- naturally -- PHP. I develop a page with all of these elements together to save time, then separate them. One thing that I really liked about Aptana 1.5 was that it completed code (brackets, parentheses, etc) and suggested things as I typed. I upgraded to 2.0 today and cannot figure out for the life of me how to bring back all of these capabilities -- or remember if I had to do anything in 1.5 to get them. Here is a picture of what I am looking for Notice the suggestion for margin: and the "HTML, Js, CSS" up top. Any help with getting this to work in 2.0 would be greatly appreciated. Ever since installing 2.0, 1.5 has been throwing error messages and I can't seem to get my FTP settings to stay locked in.

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• Internal message system with SQL database

  - by laurens

  Hi all, I was asked to install a -rather basic- Internal message system with SQL database we could integrate with our websites. A user is logged onto the website and should then be able to go to its Inbox or outbox; of course they should be able to sent to other users. Important: It's not a smtp/pop mailserver system I'm looking for! I found something with similar functionalities with an access DB (also a possibility) http://www.planet-source-code.com/vb/scripts/ShowCode.asp?lngWId=4&txtCodeId=6859 Thanks in advance!

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• Steam app and age verification issue

  - by TronicZomB

  I have OSX 10.9.4 with the Steam App (API v016 and package versions 1407966480) installed. When I would visit game pages that required age verification, my birthday would be filled in due to being logged in and I would just click OK to move past. Now the age verification shows up with January 1st, 2014 each time and it will not let me change the date. The drop down menus just show up blank. I have tried to log out of my computer, log out of Steam, restart Steam, restart my computer, and reinstall Steam. Nothing has worked and it continues to have this issue. When I visit the Steam website, the age verification drop downs work just fine. What is causing this issue? And/or how can I fix this issue?

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• Methods to achieve first, previous, next and last navigation

  - by Koroviev

  I'm new to programming and have a question about navigation. What are the various methods that can achieve a "First", "Previous", "Next" and "Last" navigation, as seen in article or comic based sites? (Admittedly the "First" link isn't confusing as it can stay static, but what about the others?) For example, on the 50th page, the links would appropriately lead to the 49th and 51st (if it exists, if not it would not function but would automatically become active when such a page exists. In most examples of this I see urls ending with something like ".php?id=50" but am not certain how it's achieved, with a database? Any help will be very much appreciated, thanks.

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• How to permanently change a variable in a Python game loop

  - by Wehrdo

  I have a game loop like this: #The velocity of the object velocity_x = 0.09 velocity_y = 0.03 #If the location of the object is over 5, bounce off. if loc_x > 5: velocity_x = (velocity_x * -1) if loc_y > 5: velocity_y = (velocity_y * -1) #Every frame set the object's position to the old position plus the velocity obj.setPosition([(loc_x + velocity_x),(loc_y + velocity_y),0]) Basically, my problem is that in the if loops, I change the variable from its original value to the inverse of its old value. But because I declare the variable's value at the beginning of the script, the velocity variables don't stay on what I change it to. I need a way to change the variable's value permanently. Thank you!

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• perfmon reporting higher IOPs than possible?

  - by BlueToast

  We created a monitoring report for IOPs on performance counters using Disk reads/sec and Disk writes/sec on four servers (physical boxes, no virtualization) that have 4x 15k 146GB SAS drives in RAID10 per server, set to check and record data every 1 second, and logged for 24 hours before stopping reports. These are the results we got: Server1 Maximum disk reads/sec: 4249.437 Maximum disk writes/sec: 4178.946 Server2 Maximum disk reads/sec: 2550.140 Maximum disk writes/sec: 5177.821 Server3 Maximum disk reads/sec: 1903.300 Maximum disk writes/sec: 5299.036 Server4 Maximum disk reads/sec: 8453.572 Maximum disk writes/sec: 11584.653 The average disk reads and writes per second were generally low. I.e. for one particular server it was like average 33 writes/sec, but when monitoring in real-time it would often spike up to several hundreds and also sometimes into the thousands. Could someone explain to me why these numbers are significantly higher than theoretical calculations assuming each drive can do 180 IOPs? Additional details (RAID card): HP Smart Array P410i, Total cache size of 1GB, Write cache is disabled, Array accelerator cache ratio is 25% read and 75% write

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• Folder permissions, red x on user object

  - by Matt Bear

  This question was asked before but was no answer. On shared folders on the file server, for the domain user name object under the security tab, the icon has a red x. There are no symptoms, the users have full access, there is just a red x on the icon for their name. Why is this? For clarification, logged into the windows 2008 r2 file server, browse to a users shared folder, right click on the folder, hit properties, click the security tab. The object representing the users domain name has a little red x on the lower right hand corner of the icon that looks like a single man. There are no symptoms beyond me wondering why the red x is there.

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• .htaccess rewrite for all but domain itself to a subdirectory

  - by romant

  Hi, There exists a blog at domain.com I wish to do a 301 redirect on anything that is after domain.com/[category/[post-name] to domain.com/blog/[category]/[post-name] The key here is when someone hits domain.com they just stay there. Only if there's any reference to posts within domain.com that I wish for the redirect to work. Will hold this for at most 6 months, until SEO settles, and then remove the redirect. What is the best way of achieving this with .htaccess ? The current one is as follows: <IfModule mod_rewrite.c> RewriteEngine On RewriteBase / RewriteCond %{REQUEST_FILENAME} !-f RewriteCond %{REQUEST_FILENAME} !-d RewriteRule . /index.php [L] </IfModule> Any help is appreciated. Thank you.

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• psloggedon timeout question.

  - by user60707

  Hi guys, I have a list of machine names from my network that I have put in a batchfile to run through the list and show me who is logged onto each. psloggedon \machineA psloggedon \machineB psloggedon \machineC psloggedon \machineD psloggedon \machineE psloggedon \machineF Psloggedon works fine, however when it hits a machine that isnt actually on the network, it hangs for a good 30 - 60 seconds before moving onto the next machine...I was just wondering if there was any way to speed this up so that if it hits a machine that isnt on the network, it moves onto the next machine in the list much quicker. I have read in other places that this could be possible by adding a ping -n loop into the command but im not sure how to get that to work? any ideas guys? Many thanks in advance. Jimmy

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• Automatic Login after a Remote Desktop connectio

  - by carlesso

  Hi all. I need to connect via remote desktop to a Windows XP machine (logging out the current user), do some stuff, and then logout the rdesktop session and having a user X which log in (from the front-end I mean). I try to be clearer: I've some windows XP machines which offers some interactive informations in public places. I need to rdekstop them to do some assistance, and then I'd like to logout and have the main user (the one which offers the service) logged back. I know there's a command for the windows prompt to achieve this, but cannot find it out!

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