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• Is there another way to restart Ubuntu 12.04's sound system if pulseaudio/ALSA don't work?

  - by Ricardo Altamirano

  I was listening to music, and my sound suddenly went dead in all my applications. I'm using Ubuntu 12.04, which uses pulseaudio, so I tried sudo /etc/init.d/pulseaudio restart, but nothing happened. According to lsof | grep pcm, nothing is using the soundcard at the moment, although I'm not entirely sure if my source for that command is applicable. Is there a way another way to restart Ubuntu 12.04's sound system from the command line without rebooting the system?

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• How can I check myself when I'm the only one working on a project?

  - by Ricardo Altamirano

  I'm in between jobs in my field (unrelated to software development), and I recently picked up a temporary side contract writing a few applications for a firm. I'm the only person working on these specific applications. Are there ways I should be checking myself to make sure my applications are sound? I test my code, try to think of edge cases, generate sample data, use source control, etc. but since I'm the only person working on these applications, I'm worried I'll miss bugs that would easily be found in a team environment. Once I finish the application, either when I'm happy with it or when my deadline expires, the firm plans to use it in production. Any advice? Not to use a cliche, but as of now, I simply work "to the best of my ability" and hope that it's enough. Incidentally, I'm under both strict NDA's and laws about classified material, so I don't discuss the applications with friends who have actually worked in software development. (In case it's not obvious, I am not a software developer by trade, and even my experience with other aspects of information technology/computer science are limited and restrained to dabbling for the most part).

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• after upgrade from 10.04 to 12.04 cannot boot with linux 3.2.0-24-generic-pae

  - by Ricardo

  After upgrade from 10.04 to 12.04, I cannot boot with linux 3.2.0-24-generic-pae: process gets frozen in a xubuntu initialization screen (I had qimo installed). If I try the recovery mode (with the same Linux version), booting freezes after this message: Begin: Mounting root file system. If in grub menu I choose Previous Linux versions, I can boot using Linux 2.6.32-41-generic-pae. But once logged in, some things don't seem to work (apt-get update fails, update manager fails, HID menu does not provide suggestions...) (to be honest, I have no idea whether this is part of the bigger issue) Reading in Ask Ubuntu through apparently similar problems, I decided to follow some advices: got boot-repair and run it. The problem remains & I got this report. I also run as root in terminal $ sudo update-initramfs -u and this is what I got: update-initramfs: Generating /boot/initrd.img-3.2.0-24-generic-pae cryptsetup: WARNING: failed to detect canonical device of /dev/sda1 cryptsetup: WARNING: could not determine root device from /etc/fstab /tmp/mkinitramfs_EIDlHy/scripts/classmate-bottom/45xconfig: 9: .: Can't open /scripts/casper-functions What else? My pc is Intel® Core™ i7 CPU 870 @ 2.93GHz × 8, graphs is GeForce 8400 GS/PCIe/SSE2, memory is 7,8 GiB. I have two questions: Is this a bug in the newest kernel I should report? Is there anything I can do appart from a fresh install?

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• Structuring an input file

  - by Ricardo

  I am in the process of structuring a small program to perform some hydraulic analysis of pipe flow. As I am envisioning this, the program will read an input file, store the input parameters in a suitable way, operate on them and finally output results. I am struggling with how to structure the input file in a sane way; that is, in a way that a human can write it easily and a machine can parse it easily. A sample input file made available to me for a similar program is just a stream of comma-separated numbers that don't make much sense on their own, so that's the scenario I am trying to avoid. Though I am giving the details of my particular problem, I am more interested in general input-file structuring strategies. Is a stream of comma-separated values my best bet? Would I be better off using some sort of key:value structure? I don't know much about this, so any help will probably put me in a better track than I am now.

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• nginx 2 symfony2 web application, one ip no domain

  - by Krzysztof Koch

  I have irritating with nginx. I set up in /usr/share/nginx/www/firstapp one application and in /usr/share/nginx/www/secondapp. in my default conf i setup that in / root localization i want first app: when write 9.9.9.9 in browser show me first app, and when i write 9.9.9.9/makeup, there not show me seccond app. Why first app displays me good, and seccondapp cannot? Please help me. Sorry for quality here pasterbin code: enter link description here server { listen 80; server_name localhost; root /usr/share/nginx/www/firstapp/web; access_log /var/log/nginx/$host.access.log; error_log /var/log/nginx/error.log error; # strip app.php/ prefix if it is present rewrite ^/app\.php/?(.*)$ /$1 permanent; location / { root /usr/share/nginx/www/firstapp/web/; index app.php; try_files $uri @rewriteapp; } location /makeup/ { alias /usr/share/nginx/www/seccondapp/web/; index app.php; try_files $uri @rewriteapp; } location @rewriteapp { rewrite ^(.*)$ /app.php/$1 last; } # pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000 location ~ ^/(app|app_dev)\.php(/|$) { #fastcgi_pass 127.0.0.1:9000; fastcgi_pass unix:/var/lib/php5-fpm/www.sock; fastcgi_split_path_info ^(.+\.php)(/.*)$; include fastcgi_params; fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name; fastcgi_param HTTPS off; #fastcgi_param SERVER_PORT 80; }

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• Gnome 3 application Icons disappeared

  - by robin.koch

  I edited my main menu settings (unchecked items inside a sub menu) when it happened that the window freezed and all entries on the left side disappeared (Office, System, Settings, Games, ...). I didn't think much about it, but when I restarted my computer all application entries in my menu and my favorites (quickstart bar on the left side) where gone. When I go to activities - applications I just see the "All" entry without any items to click on. ~/.config/menu/gnome-applications.menu is an empty file and ~/.config/menu/gnome-settings.menu has the folowing content: <!DOCTYPE Menu PUBLIC '-//freedesktop//DTD Menu 1.0//EN' 'http://standards.freedesktop.org/menu-spec/menu-1.0.dtd'> <Menu> <Name>Desktop</Name> <MergeFile type="parent">/etc/xdg/menus/gnome-settings.menu</MergeFile> </Menu> I also looked into the files under /etc/xdg/menus. They look like template files without any reference to actual installed programs. I assume that due to a bug it deleted all my menu settings. Is there any way to restore at least the default menu? Or are there any other places to look for my old configuration?

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• ArchBeat Link-o-Rama for October 29, 2013

  - by OTN ArchBeat

  Exceptions Handling and Notifications in ODI | Christophe Dupupet Oracle Fusion Middleware A-Team director Christophe Dupupet reviews the techniques that are available in Oracle Data Integrator to guarantee that the appropriate individuals are notified in the event that ODI processes are impacted by network outages or other mishaps. Tech Article: SOA in Real Life: Mobile Solutions The latest article in the Industrial SOA series looks at mobile computing and how companies are developing SOA to go. Oracle Coherence, Split-Brain and Recovery Protocols In Detail | Ricardo Ferreira Ricardo Ferreira's article "provides a high level conceptual overview of Split-Brain scenarios in distributed systems," focusins on a "specific example of cluster communication failure and recovery in Oracle Coherence." WebLogic & FMW Provisioning update | Edwin Biemond "Provisioning was a hot topic on Oracle Openworld 2013," says Oracle ACE Edwin Biemond. His latest blog post discusses what is now possible with WebLogic and Fusion Middleware, and looks at what might be possible in the future. Reusing and Extending ADF BC Entities from Common Model | Andrejus Baranovskis Oracle ACE Director Andrejus Baranovskis' post is about "ADF architecture and better application structuring with EO reuse from a common model." Andrejus describes "how to implement additional requirements to common model in extended ADF BC Entities." Thought for the Day "I work hard, I work late, I have nothing on my conscience. When I go to bed, I sleep." — Ellen Johnson Sirleaf, 24th and current President of Liberia (Born 29 October 1938) Source: brainyquote.com

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• Bitcoin ou comment investir 18 euros et récolter plus de 600 000 euros ? L'histoire d'un jeune norvégien

  Bitcoin ou comment investir 18 euros et récolter plus de 600 000 euros ? L'histoire d'un jeune norvégien En 2009, alors qu'il était encore étudiant, un norvégien du nom de Kristoffer Koch entend parler des bitcoins, la monnaie virtuelle qui permet de faire des achats sur Internet. Par curiosité, il décide de dépenser 150 couronnes norvégiennes (environ 18 euros) pour acquérir 5 000 bitcoins. Par la suite il a complètement perdu de vue son investissement, jusqu'au jour où les médias s'intéressent...

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• Core Data grouping data in table

  - by OscarTheGrouch

  I am using core data trying to create a simple database app, I have an entity called "Game" which has a "creator". I have basically used the iPhone table view template and replaced the names. I have the games listed by creator. Currently the tableview looks like this... Chris Ryder Chris Ryder Chris Ryder Chris Ryder Dan Grimaldi Dan Grimaldi Dan Grimaldi Scott Ricardo Tim Thermos Tim Thermos I am trying to group the tableview, so that each creator has only one cell in the tableview and is listed once and only once like this... Chris Ryder Dan Grimaldi Scott Ricardo Tim Thermos any help or suggestions would be greatly appreciated.

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• Entity Framework: EntityCommand automatically parsing and determine parameter types?

  - by Torben Rahbek Koch

  Hi everybody, Pretty new to Entity Framework I must admit, but I simply cannot believe that there is no built-in solution for this problem. Let's say I create an EntityCommand: EntityCommand cmd = conn.CreateCommand(); cmd.CommandType = CommandType.Text; cmd.CommandText = commandText; And let's say the the commandText is something like this: SELECT sp.UserName, sp.Rights FROM EntityContext.Users as sp WHERE sp.UserName=@UserName Now it would be really neat if the Parameters collection of cmd could be automatically filled. The framework should obviously know the types etc. but I guess that's simply not how it works beneath. The problem is that the commandText is configurable on run-time, and I must show some GUI that asks for values of the parameters. Any idea on how this could be accomplished? Thanks for any ideas and for listening!

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• .NET 4.0 Forms Authentication change?

  - by James Koch

  I'm seeing some new behavior in Forms Authentication after upgrading to .NET 4.0. This occurs only on IIS 6, not on 7. Background - In web.config, we configure Forms Authentication, and then use <authorization tags to globally deny anonymous/unauthenticated users access. Then we explicitly allow access to a login.aspx page using a <location tag. Generally, this works fine, as it did when we were on .NET 2.0 (3.5). The issue only occurs when we visit the root path of the site, ie "http://myserver/". Our default document is configured in IIS to be login.aspx. Under .NET 4.0, upon visiting that URL, we're redirected to "http://myserver/login.aspx?ReturnUrl=/". If you log in from here, you're logged in and returned back at the log in page (yuck). Just wanted to post this here to see if anyone else is experiencing this. It's not listed on any "breaking changes" documentation I've been able to find. Either I'm missing something, or the UrlAuthorization module has changed and is no longer "smart" about IIS default documents.

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• Problem with UserControl with custom Dependency Property

  - by Mathias Koch

  Hi, I'm writing a user control with a dependency property for a search text called SearchText. It is a dependency property because I want to allow consumers of the control to use data binding. The user control contains a WPF TextBox where the user can enter the search text. I could use data binding to connect the SearchText dependency property of the user control with the Text dependency property of the TextBox, but this binding only fires when the text box looses input focus. What I want is SearchText to be updated after every change of Text. So I have added a TextChanged event handler to the user control where I set SearchText to the value of Text. My Problem is, the SearchText binding doesn't work, the source never gets updated. What am I doing wrong? Here's the relevant part of the user controls code-behind: public partial class UserControlSearchTextBox : UserControl { public string SearchText { get { return (string)GetValue(SearchTextProperty); } set { SetValue(SearchTextProperty, value); } } public static readonly DependencyProperty SearchTextProperty = DependencyProperty.Register("SearchText", typeof(string), typeof(UserControlSearchTextBox), new UIPropertyMetadata("")); private void TextBox_TextChanged(object sender, TextChangedEventArgs e) { SearchText = ((TextBox)sender).Text; } ... } The window that contains an instance of the user control has its DataContext set to an object that has a property also called SearchText. <uc:UserControlSearchTextBox SearchText="{Binding SearchText}" /> The data context of the Window: public class DataSourceUserManual : DataSourceBase { private string _searchText; public string SearchText { get { return _searchText; } set { _searchText = value; ... OnPropertyChanged("SearchText"); } } } Unfortunately, this setter is not called when I type into the text box. Any ideas?

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• Css3 Transition on background transparent not working in Chrome 5

  - by Ricardo Koch

  I`m trying to create an animation using CSS3 transition. The animation is a gradient background that should change his color (rgba). I used the webkit tag for the gradient and it`s working in Chrome 5.0.375.55. Looking into w3c site I see that "background-image - only gradients" is supported for the transition. (http://www.w3.org/TR/css3-transitions/) But I can only animate the background-color property with this version of chrome. With gradient the transition does not work. Does anyone managed to create an animation with background gradients?

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• I did my own web framework: now, how keep it sync with applications? must I use versions?

  - by Daniel Koch

  ... and I did the first web application using it, now I'm going to create the second. In this first web application I enhanced the framework's core library with new things and promptly updated framework branch. I'm using bazaar to keep framework and web application committed. The application was in the beginning, a full branch of framework source tree, now I'm updating framework manually at every change on core files. (copying changed files from web app to framework's branch). With this second web application that I'm going to create, I need to know about versions (or revisions) which the application is based. If I found a bug in this version I can fix and then sync files with first web application no worrying: functions will be the same to this application. If I'm going to make changes in core (new behavior, new functions in library or something new in source tree) it must be named as "new version". What's the best way to do this? Because I'm using a Distributed Version Control System (bazaar), I'm not dealing with VERSIONS, but revision numbers that change every time. Please fresh my mind with new ideas.

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• Ping only works after about 30 seconds

  - by Ricardo Polo

  Today I am working on this issue and I would love your ideas. There is a network with something like this LAN 1 -- WAN CHANNEL--- LAN 2 The LAN 1 have two segments. When I make a ping from LAN 1 segment 1 it works like a charm. When I make a ping from LAN 1 segment 2 I have no ping, but after about 30 seconds of continues ping (ping -t) it start to work perfect. After some time of no activity with the destination host the issue happens again. Tracing the route packets stops in the last router before the target. This is the first router in LAN 2 after the WAN channel. In the next screenshot you can see thie issue, the first ping is before a continuos ping and the second one is while continous ping is running. Thank you in advance

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• Simple SQL Server 2005 Replication - "D-1" server used for heavy queries/reports

  - by Ricardo Pardini

  Hello. We have two SQL 2005 machines. One is used for production data, and the other is used for running queries/reports. Every night, the production machine dumps (backups) it's database to disk, and the other one restores it. This is called the D-1 process. I think there must be a more efficient way of doing this, since SQL 2005 has many forms of replication. Some requirements: 1) No need for instant replication, there can be (some) delay 2) All changes (including schemas, data, constraints, indexes) need to be replicated without manual intervention 3) It is used for a single database only 4) There is a third server available if needed 5) There is high bandwidth (gigabit ethernet) available between the servers 6) There isn't a shared storage (SAN) available What would be a good alternative to this daily backup/restore routine? Thanks!

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• One Database vs. Multiple Databases

  - by Ricardo

  I need to design a system which represents multiple "projects", one per client in SQL Server , something similar to StackExchange... same data model, different sites (one per customer). Each project has the same data model, but is independent of all others. My inclination is to use one database to store all projects. What is your recommendation?

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• Configuring DNS on my Amazon AWS [closed]

  - by Ricardo

  So, I have an AWS EC2, and I need to configure a dns server, I have a Ubuntu 11.04 and webmin is configured, I have a domin point to my ip. So, know I need to redirect my domain to my ip and configure BIND dns server? What configuration I have to do to redirect my domain account to my ip and create my own dns server? I see some videos on youtube but, i don´t know what is the best of for me. Thank´s for any help.

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• Opening port 80 in router has no results

  - by Ricardo Pieper

  A friend of mine has a ADSL modem and I need to forward some ports. I have already forwarded the 1521 port (Oracle) and it's working fine. Now I need to forward the port 80. I already set up his IIS bindings to this port, and also forwarded the port like this video shows: https://www.youtube.com/watch?v=DLKD-fyexoo So I think I did everything correctly. The local IP address is also the same as the machine where the IIS server is running. I'm sorry, but I can't post images since i don't have 10 points :( Somehow I can't forward this port, yougetsignal.com keeps saying that the door is closed. When I try to open the port, the Control Panel says me that I have to access the control panel in the 8080 port, because the 80 port will be open. Ok, that's fine. But I'm still able to access it in the 80 port, and when I try to access it in the 8080 port, it doesn't work. I'm trying it with the TPLINK 8816, but I also tried to open it in the Opticom DsLink 279, and it didn't worked (using another machine), I got the exact same results. He has a dynamic IP address, but he is also using No-ip, so I can always access his Oracle database in a certain static address. The 1521 port is open. I also tried to disable the firewall in Windows, but that makes no sense to me, since the router doesn't really open the port 80. Clearly I'm missing something. I have never done it in my life, so I dont know how to proceed. Restarting the router was the first I did, no results. I'm accessing his laptop through TeamViewer, so I'm testing the port outside his local network. Edit: My ISP says that they allow to open ports, and the 1521 port is opened. What could I do to open the 80 port?

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• How do I disable certain folders from appearing in my IMAP client when using Gmail?

  - by Ricardo Altamirano

  I'm using the newest version of Gmail, as far as I know, and there used to be the option in Settings - Labels that said "Show in IMAP" next to label/folder names. This option is no longer there, unfortunately. How do I hide specific labels/folders, e.g. All Mail, from Thunderbird, my IMAP client? In both Firefox 17.0 and Chromium 20.0.1132.47 on Ubuntu 12.04, without an extensions, these options do not appear, so it doesn't appear to be a browser issue. In the past, I had to enable "Advanced IMAP Controls" in Settings - Labs for the "Show in IMAP" controls to appear, but according to this post, those controls "graduated" and should appear under Settings- Labels. What can I do to show or hide specific folders in IMAP?

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• HP Printer odd behaviour in Vista Home Basic

  - by ricardo.acras

  I Have a HP 1018 printer. In my previous PC (with vista home premium) it worked just fine, and still works. In my new PC, which came with vista home basic, the printing almost never works. What happens is as follows 1 - I install the printer, windows says its ok. 2 - I send a document to print. 3 - Printer screen (spool) shows the document for 1 or 2 seconds and then it disappear. For two times it worked after numerous reinstallations, and after I restart my computer it stop working again. Any Ideas?

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• apache proxypass to webmin

  - by Ricardo

  I have a problem with apache2 webmin redirect. My ProxyPass is: ProxyRequests Off ProxyPreserveHost On SSLProxyEngine On ProxyPass /admin/webmin/ https://localhost:10000/ ProxyHTMLURLMap https://localhost:10000 /admin/webmin <Location /admin/webmin/> ProxyHTMLExtended On SetOutputFilter proxy-html ProxyPassReverse https://localhost:10000/ ProxyPassReverse https://xxxxxxxxxxxxxxxxxxxx.amazonaws.com:10000/ Order allow,deny Allow from all </Location> When I connect using https://xxxxxxxxxxxxxxxxxxxx.amazonaws.com:10000/ there is no problem. But when I connect use https://xxxxxxxxxxxxxxxxxxxx.amazonaws.com/admin/webmin the page lost css and after login show me the error: The requested URL /session_login.cgi was not found on this server. I think is an error with my ProxyPass but I don´t know what is.

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• Backing NTFS hard drive to a Linux distro

  - by Ricardo Ferreira

  Hey all, I want to move to Linux (Ubuntu more specifically) and also bought a new hard drive. What I'm not really sure about is if I put my old hard drive on an external case, then install Ubuntu on the new one and configure, etc... Can I easily access my old one (which is now an external hard drive)? Will I have no problems accessing my partitions? Thanks in advance.

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• Using OpenNMS, how can I disable notifications for a particular service and server

  - by Ricardo Reyes

  We are using OpenNMS to monitor a pool of servers, and we have a problem with SMTP in one particular box. OpenNMS is "spamming" us all the time with DOWN/RESOLVED messages for that particular service in that server, and I wanted to mute those notifications momentarely but couldn't find how to do that. I know that I can disable ALL notifications or disable SMTP in ALL servers, but that's not what I want. I'm used to muting a particular service in Nagios, but is it possible in OpenNMS?

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• BIND DNS server (Windows) - Unable to access my local domain from other computers on LAN

  - by Ricardo Saraiva

  I have a BIND DNS server running on my Windows 7 development machine and I'm serving pages with WAMPSERVER. My ideia is to develop some tools (in PHP) for my intranet at work and I want them to be accessible via LAN in this format: http://tools.mycompany.com I've already placed BIND and I can access http://tools.mycompany.com on the machine that holds BIND server, but I cannot access it from other LAN computers. I've done the following on my router: defined static IP's for all LAN computers set Port Forwarding to my server (remember: it serves DNS and Web pages) set DNS server configuration to point to my LAN server On LAN computers, I went to Local Area Network properties and also changed the DNS server IP in order to point to my local DNS server. If it helps, here is my named.conf file: options { directory "c:\windows\SysWOW64\dns\etc"; forwarders {127.0.0.1; 8.8.8.8; 8.8.4.4;}; pid-file "run\named.pid"; allow-transfer { none; }; recursion no; }; logging{ channel my_log{ file "log\named.log" versions 3 size 2m; severity info; print-time yes; print-severity yes; print-category yes; }; category default{ my_log; }; }; zone "mycompany.com" IN { type master; file "zones\db.mycompany.com.txt"; allow-transfer { none; }; }; key "rndc-key" { algorithm hmac-md5; secret "qfApxn0NxXiaacFHpI86Rg=="; }; controls { inet 127.0.0.1 port 953 allow { 127.0.0.1; } keys { "rndc-key"; }; }; ...and a single zone I've defined - file db.mycompany.com.txt: $TTL 6h @ IN SOA tools.mycompany.com. hostmaster.mycompany.com. ( 2014042601 10800 3600 604800 86400 ) @ NS tools.mycompany.com. tools IN A 192.168.1.4 www IN A 192.168.1.4 On the file above 192.168.1.4 is the IP of the local machine inside my LAN. Can someone help me here? I need my web pages to be accessible from other computers inside my LAN using my custom domain name. I've tried on other computers and they can access my server via http://192.168.1.4/, but no able when using http://tools.mycompany.com . Please, consider the following: I'm completely new to BIND I have basic knowledge in Apache configuration Thanks a lot for your help.

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