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  • Postfix enable SSL 465 failed

    - by user221290
    I have installed the Postfix and enabled SSL/TLS, just tested, I can sent email from port 25, 578, but cannot sent email from port 465, the log is: May 26 17:24:06 mail postfix/smtpd[28721]: SSL_accept:SSLv3 write server hello A May 26 17:24:06 mail postfix/smtpd[28721]: SSL_accept:SSLv3 write certificate A May 26 17:24:06 mail postfix/smtpd[28721]: SSL_accept:SSLv3 write server done A May 26 17:24:06 mail postfix/smtpd[28721]: SSL_accept:SSLv3 flush data May 26 17:24:06 mail postfix/smtpd[28721]: SSL3 alert read:fatal:certificate unknown May 26 17:24:06 mail postfix/smtpd[28721]: SSL_accept:failed in SSLv3 read client certificate A May 26 17:24:06 mail postfix/smtpd[28721]: SSL_accept error from unknown[10.155.36.240]: 0 May 26 17:24:06 mail postfix/smtpd[28721]: warning: TLS library problem: 28721:error:14094416:SSL routines:SSL3_READ_BYTES:sslv3 alert certificate unknown:s3_pkt.c:1197:SSL alert number 46: May 26 17:24:06 mail postfix/smtpd[28721]: lost connection after CONNECT from unknown[10.155.36.240] May 26 17:24:06 mail postfix/smtpd[28721]: disconnect from unknown[10.155.36.240] My email server is: 10.155.34.117, and email client is: 10.155.36.240, the client error is: Could not connect to SMTP host: 10.155.34.117, port: 465. My Master.cf: smtps inet n - n - - smtpd -o smtpd_tls_wrappermode=yes My main.cf: smtpd_use_tls = yes smtpd_tls_auth_only = no smtpd_tls_key_file = /etc/pki/myca/mail.key smtpd_tls_cert_file = /etc/pki/myca/mail.crt smtpd_tls_CAfile = /etc/pki/myca/cacert_new.pem smtpd_tls_loglevel = 2 smtpd_tls_received_header = yes smtpd_tls_session_cache_timeout = 3600s smtpd_tls_session_cache_database = btree:/etc/postfix/smtpd_scache Seems it's my certificate issue, but I have tried to grant the file many times...I have no idea on this, please help!

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  • Who are good suppliers of .NET 4 Hosted Virtual Private Servers ? (May 2010)

    - by Nick Haslam
    I'm looking for a supplier for hosting a Virtual server, running Windows Server 2008 (R2 ideally) and .NET 4 to run an internet facing ASP.NET web application. I'd also like to be able to remote desktop onto it, and install other apps as necessary, including other websites as and when. I'm based in the UK, so a UK based supplier would be great. I was looking at Fasthosts, but having researched them a bit more, they look like a bad idea.

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  • Splitting a MySQL DB in two may ease server from "Too many connetions"? I don't think so

    - by Petruza
    I was requested to split a MySQL in two, it's kind of a horizontal partition, in which some rows correspond to one site, and some other correspond to another site. But they want to split it in two DBs in the same MySQL server. I'm no DB expert but I guess keeping them in the same MySQL server with the same amount of memory and processor and the same platform won't improve things. What we're trying to avoid is the "Too many connections" problem.

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  • Viruses on removable drives - how may they get into the system?

    - by osgx
    Hello When I inserting flash drive of my friend, how can I check that it is safe from infecting me with a viruses? Autorun.inf. This can be disabled with Shift while inserting or in registry anything other way of how can trojan get into my comp? folder.htt - seems to be disabled in modern XP Considering the default Windows XP SP2-SP3, flash is opened with Explorer.

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  • Would Windows 8 may increase the Cap of more than 2 GB?

    - by Pisaro
    I have a old Laptop Dell Latitude D430 that I just upgraded to Windows 8. The Ram that I have installed is 2GB (Max Ram that this laptop can handle) but I am wondering if by installing windows 8 can help also to increase the cap of the total Ram that the laptop can handle. I know that some laptops have a cap of RAM by the Bios but I am wondering if any of you know if by installing a new OS can actually change this? thanks, Robert

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  • Which application may I use to open an old Microsoft access database?

    - by skyeagle
    I have an old Microsoft access database (circa 2002 or so), which I need to extract data from. I don't have Microsoft Office available - the trial version I downloaded expired a week ago or so. I am looking for an open source solution or something similar that will allow me to open the database and extract the data - so I can throw away the database. BTW, can I use OpenOffice to access the data in the .mdb file? (I don't think the option is available IIRC)

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  • How many megabytes per second may I expect from a gigabit USB 2.0 network card under linux?

    - by Nakedible
    I'm interested in the actual real-word throughput attainable with an external 1000BaseT USB 2.0 network card under Linux. I have been able to attain 90 megabytes per second on a PCI-E interface, but the USB 2.0 bus has a theoretical limit of 480Mbit/s, and in practice less than 40 megabytes per second. Is the actual throughput attainable with such a card under linux 40, 30, 20, or even as low as 10 megabytes per second, eg. no better than a normal 100BaseT network card?

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  • How may I retrieve data from an Excel table based on a variable number of criteria?

    - by Eshwar
    I have the following salary data for example: Country State 2012 2013 -> 2027 ======= ===== ==== ==== China Other 1000 1100 China Shanghai 1310 1400 China Tianjin 1450 1500 India Orissa 1500 1600 So now in another Excel sheet I would want an answer to one of the following questions: What is the salary in Shanghai for 2013? (Answer would be 1400) What is the salary in Hubei province for 2012? (Since it is not listed, use "Other" - 1000) What is the average salary in China for 2013? (Answer would be 1450) What is the highest salary in China for 2012? (Answer is Tianjin) So as in the above order of priority, I would like those numbers in another Excel sheet using some form of query. I considered PivotTables but I was wondering if there is another much better more efficient way of doing this? I imagine SQL is suited for this but I am not clued up on that. Some Excel functionality is much rather preferred. Also suggestions on an appropriate format of data for such queries would be appreciated.

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  • What may be wrong with String::ToIdentifier::EN tests?

    - by wk01
    I try to install Perl module String::ToIdentifier::EN (as depndency of DBIx::Class::Schema::Loader) but it fails on tests. I googled those errors but get no picture, where is problem: Building and testing String-ToIdentifier-EN-0.07 cp lib/String/ToIdentifier/EN.pm blib/lib/String/ToIdentifier/EN.pm cp lib/String/ToIdentifier/EN/Unicode.pm blib/lib/String/ToIdentifier/EN/Unicode.pm Manifying blib/man3/String::ToIdentifier::EN.3pm Manifying blib/man3/String::ToIdentifier::EN::Unicode.3pm PERL_DL_NONLAZY=1 /usr/bin/perl "-MExtUtils::Command::MM" "-e" "test_harness(0, 'inc', 'blib/lib', 'blib/arch')" t/00_basic.t t/10_ascii.t t/20_capitalization.t Byte order is not compatible at ../../lib/Storable.pm (autosplit into ../../lib/auto/Storable/_retrieve.al) line 380, at /home/wanradt/perl5/lib/perl5/Lingua/EN/Tagger.pm line 167 # Looks like you planned 25 tests but ran 4. # Looks like your test exited with 25 just after 4. t/00_basic.t ........... Dubious, test returned 25 (wstat 6400, 0x1900) Failed 21/25 subtests Byte order is not compatible at ../../lib/Storable.pm (autosplit into ../../lib/auto/Storable/_retrieve.al) line 380, at /home/wanradt/perl5/lib/perl5/Lingua/EN/Tagger.pm line 167 # Looks like you planned 768 tests but ran 512. # Looks like your test exited with 25 just after 512. t/10_ascii.t ........... Dubious, test returned 25 (wstat 6400, 0x1900) Failed 256/768 subtests t/20_capitalization.t .. ok Test Summary Report ------------------- t/00_basic.t (Wstat: 6400 Tests: 4 Failed: 0) Non-zero exit status: 25 Parse errors: Bad plan. You planned 25 tests but ran 4. t/10_ascii.t (Wstat: 6400 Tests: 512 Failed: 0) Non-zero exit status: 25 Parse errors: Bad plan. You planned 768 tests but ran 512. Files=3, Tests=528, 1 wallclock secs ( 0.07 usr 0.02 sys + 0.42 cusr 0.04 csys = 0.55 CPU) Result: FAIL Failed 2/3 test programs. 0/528 subtests failed. make: *** [test_dynamic] Error 255 -> FAIL Installing String::ToIdentifier::EN failed. See /home/wanradt/.cpanm/build.log for details. Byte order is not compatible at... seems a key, but to where?

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  • "Can't Connect to Server" from 2nd virtual host on VPS

    - by chaoskreator
    I'm using Debian 7 Wheezy and Apache 2.2.22, and I'm setting up Virtual Hosts for a number of websites on my VPS. I've successfully configured the VirtualHost directives for one of the sites, but the second one continually gives "Problem Loading Page" in Firefox. I've run configtest and it has verified all my syntax is correct, and I've checked all the permissions. Everything on the 2nd domain is pretty much copy/pasted from the first, so I'm not sure what the issue is, as there are no entries into /var/log/apache2/error.log other than where I have reloaded the configurations: /# cat /var/log/apache2/error.log [Thu May 29 01:19:00 2014] [notice] Graceful restart requested, doing restart [Thu May 29 01:19:00 2014] [info] Init: Seeding PRNG with 656 bytes of entropy [Thu May 29 01:19:00 2014] [info] Init: Generating temporary RSA private keys (512/1024 bits) [Thu May 29 01:19:00 2014] [info] Init: Generating temporary DH parameters (512/1024 bits) [Thu May 29 01:19:00 2014] [debug] ssl_scache_shmcb.c(253): shmcb_init allocated 512000 bytes of shared memory [Thu May 29 01:19:00 2014] [debug] ssl_scache_shmcb.c(272): for 511920 bytes (512000 including header), recommending 32 subcaches, 133 indexes each [Thu May 29 01:19:00 2014] [debug] ssl_scache_shmcb.c(306): shmcb_init_memory choices follow [Thu May 29 01:19:00 2014] [debug] ssl_scache_shmcb.c(308): subcache_num = 32 [Thu May 29 01:19:00 2014] [debug] ssl_scache_shmcb.c(310): subcache_size = 15992 [Thu May 29 01:19:00 2014] [debug] ssl_scache_shmcb.c(312): subcache_data_offset = 3208 [Thu May 29 01:19:00 2014] [debug] ssl_scache_shmcb.c(314): subcache_data_size = 12784 [Thu May 29 01:19:00 2014] [debug] ssl_scache_shmcb.c(316): index_num = 133 [Thu May 29 01:19:00 2014] [info] Shared memory session cache initialised [Thu May 29 01:19:00 2014] [info] Init: Initializing (virtual) servers for SSL [Thu May 29 01:19:00 2014] [info] mod_ssl/2.2.22 compiled against Server: Apache/2.2.22, Library: OpenSSL/1.0.1e [Thu May 29 01:19:00 2014] [notice] Apache/2.2.22 (Debian) PHP/5.4.4-14+deb7u9 mod_ssl/2.2.22 OpenSSL/1.0.1e mod_perl/2.0.7 Perl/v5.14.2 configured -- resuming normal operations [Thu May 29 01:19:00 2014] [info] Server built: Mar 4 2013 22:05:16 [Thu May 29 01:19:00 2014] [debug] prefork.c(1023): AcceptMutex: sysvsem (default: sysvsem) I've ensured to enable each vhost with a2ensite {sitename.conf} with no errors there, either. Below are the contents of the configuration files... /etc/apache2/apache2.conf # Global configuration # LockFile ${APACHE_LOCK_DIR}/accept.lock PidFile ${APACHE_PID_FILE} Timeout 300 KeepAlive On MaxKeepAliveRequests 100 KeepAliveTimeout 5 ## ## Server-Pool Size Regulation (MPM specific) ## # prefork MPM # StartServers: number of server processes to start # MinSpareServers: minimum number of server processes which are kept spare # MaxSpareServers: maximum number of server processes which are kept spare # MaxClients: maximum number of server processes allowed to start # MaxRequestsPerChild: maximum number of requests a server process serves <IfModule mpm_prefork_module> StartServers 5 MinSpareServers 5 MaxSpareServers 10 MaxClients 150 MaxRequestsPerChild 0 </IfModule> # worker MPM # StartServers: initial number of server processes to start # MinSpareThreads: minimum number of worker threads which are kept spare # MaxSpareThreads: maximum number of worker threads which are kept spare # ThreadLimit: ThreadsPerChild can be changed to this maximum value during a # graceful restart. ThreadLimit can only be changed by stopping # and starting Apache. # ThreadsPerChild: constant number of worker threads in each server process # MaxClients: maximum number of simultaneous client connections # MaxRequestsPerChild: maximum number of requests a server process serves <IfModule mpm_worker_module> StartServers 2 MinSpareThreads 25 MaxSpareThreads 75 ThreadLimit 64 ThreadsPerChild 25 MaxClients 150 MaxRequestsPerChild 0 </IfModule> # event MPM # StartServers: initial number of server processes to start # MinSpareThreads: minimum number of worker threads which are kept spare # MaxSpareThreads: maximum number of worker threads which are kept spare # ThreadsPerChild: constant number of worker threads in each server process # MaxClients: maximum number of simultaneous client connections # MaxRequestsPerChild: maximum number of requests a server process serves <IfModule mpm_event_module> StartServers 2 MinSpareThreads 25 MaxSpareThreads 75 ThreadLimit 64 ThreadsPerChild 25 MaxClients 150 MaxRequestsPerChild 0 </IfModule> # These need to be set in /etc/apache2/envvars User ${APACHE_RUN_USER} Group ${APACHE_RUN_GROUP} # # AccessFileName: The name of the file to look for in each directory # for additional configuration directives. See also the AllowOverride # directive. # AccessFileName .htaccess # # The following lines prevent .htaccess and .htpasswd files from being # viewed by Web clients. # <Files ~ "^\.ht"> Order allow,deny Deny from all Satisfy all </Files> DefaultType None HostnameLookups Off ErrorLog ${APACHE_LOG_DIR}/error.log LogLevel debug # Include module configuration: Include mods-enabled/*.load Include mods-enabled/*.conf # Include list of ports to listen on and which to use for name based vhosts Include ports.conf # # The following directives define some format nicknames for use with # a CustomLog directive (see below). # If you are behind a reverse proxy, you might want to change %h into %{X-Forwarded-For}i # # LogFormat "%v:%p %h %l %u %t \"%r\" %>s %O \"%{Referer}i\" \"%{User-Agent}i\"" vhost_combined LogFormat "%h %l %u %t \"%r\" %>s %O \"%{Referer}i\" \"%{User-Agent}i\"" combined LogFormat "%h %l %u %t \"%r\" %>s %O" common LogFormat "%{Referer}i -> %U" referer LogFormat "%{User-agent}i" agent <Directory "/var/www"> Order allow,deny Allow from all Require all granted </Directory> # Include generic snippets of statements Include conf.d/ # Include the virtual host configurations: Include sites-enabled/*.conf NameVirtualHost *:80 /etc/apache2/sites-available/site1.net.conf <VirtualHost *:80> ServerName site1.net ServerAlias site1.net *.site1.net DocumentRoot "/var/www/site1" ErrorLog "/var/www/site1/logs/error.log" CustomLog "/var/www/site1/logs/access.log" vhost_combined <Directory "/var/www/site1"> Options None AllowOverride All Order allow,deny Allow from all Satisfy Any </Directory> </VirtualHost> /etc/apache2/sites-available/site2.com.conf <VirtualHost *:80> ServerName site2.com ServerAlias site2.com *.site2.com DocumentRoot "/var/www/site2" ErrorLog "/var/www/site2/logs/error.log" CustomLog "/var/www/site2/logs/access.log" vhost_combined <Directory "/var/www/site2"> Options None AllowOverride All Order allow,deny Allow from all Satisfy Any </Directory> </VirtualHost> I've also tried setting NameVirtualHost like: Listen 80 NameVirtualHost 23.88.121.82:80 NameVirtualHost 127.0.0.1:80 and the VirtualHost Directives: <VirtualHost 23.88.121.82:80> ... </VirtualHost> for both sites, but that causes the first site to fail, as well. I'm wondering if I need to set up individual IPs for each site, possibly? I have 2 more IPv4 and 3 IPv6 addresses available, if that would make a difference. Also, in the grand scheme of things, I will need to enable SSL for the first site. I've been reading that I'll need to basically just mimic the directives for listening on port 80, only on port 443, and make sure mod_ssl is enabled? EDIT: I just ran apache2 -t to test the config files that way, and got the error: apache2: bad user name ${APACHE_RUN_USER}. However, apachectl configtest returns Syntax OK. There are no other mentions of errors with the mutex anywhere else, however. I was pretty sure if there was an error with the user apache was supposed to run under, the server wouldn't start at all... EDIT 2: Restarting apache fixed the bad user name error.

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  • Is there a 'global media cache' in Windows 7 that may be used by third party media players?

    - by Pulse
    Here's the background. I don't use Windows Media Player or Media Centre, in fact both components have been 'turned off' via the 'Programs and Features' option. My media player of choice is a nightly build of MPC-HC, which plays virtually everything. I do, however, have VLC portable available for those rare instances when MPC-HC can't or won't play something correctly. This is the situation. I tend to download various media files via torrent, typically, game trailers or freely availably films, such as the recently released, torrent only, Pioneer One. Quite often these files are quite large, being 1GB+ so I quite often like to preview the file after it has downloaded a significant portion of the file. For the most part, this works quite well, and gives me an idea about the worth of continuing the download. Sometimes, however, the file doesn't play as expected and instead plays a completely unrelated file that has been previously played. Here's the strange thing. if I try to preview the file in MPC-HC or VLC both players play the same, previously played file, regardless of whichever player was originally responsible for playback. Most times, it's not even a file that's been played recently. I have searched the registry for some sort of MRU cache, but have found nothing. I have made sure each player has had it's respective history/cache deleted and can fine nothing on disk that seems to be storing this, apparently shared data. So, the question is, where are these unrelated players getting the file information from? Thnaks.

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  • Condition Error: Property is not declared. It may be inaccessible due to its protection level.

    - by Stoive
    I've have a workflow whose root activity is a custom NativeActivity with a public InArgument called XmlData. When I try and use this argument in a child If activity I get the following error using XmlData within the condition: 'XmlData' is not declared. It may be inaccessible due to its protection level I'm adding the argument inside CacheMetadata using the metadata.AddArgument method, and I've tried adding the child property it has using both AddChild and AddImplementationChild. If I replace my custom activity with an ActivityBuilder and use code to create a DynamicActivityProperty then the condition can be compiled successfully, so I don't see what I'm missing when I use my own code.

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  • How to fix “Collection was modified; enumeration operation may not execute. “when using Copy.asmx in SharePoint2010

    - by ybbest
    Problem: In my current project, we use copy.asmx web services in SharePoint2010 to upload a document to a document library. In one of the document library, when uploading a document with a choice field, it blows up and the error message is Collection was modified; enumeration operation may not execute. Analysis: After some research , we found out the problem is that we have 2 content types that both have a field called Document Type , although the internal name are different but the display name are exactly the same and this cause the problem. I am still not too sure why, it could possibly a SharePoint bug. Solution: After rename one of the field display name to a different name, it works like a charm. You can download source code with the problem here and source code without the problem here.

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  • VBScript & Access MDB - 800A0E7A - "Provider cannot be found. It may not be properly installed"

    - by Perma
    Hey gang, I've having a problem with a VBScript connecting to an access MDB Database. My platform is Vista64, but the majority of resources out there are for ASP/IIS7. Quite simply, I can't get it to connect. I'm getting the following error: 800A0E7A - "Provider cannot be found. It may not be properly installed" My code is: Set conn = CreateObject("ADODB.Connection") strConnect = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=C:\database.MDB" conn.Open strConnect So far I have ran %WINDIR%\System32\odbcad32.exe to try to configure the Driver in 32bit mode, but it hasn't done the trick. Any suggestions would be greatly appreciated

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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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  • Error: An aggregate may not appear in the WHERE clause unless it is in a subquery contained in a HAV

    - by brz dot net
    I have to find the indentid from the status table based on below two conditions: 1. If there are more than one record having same indentid in status table and the same indentID has count1 in feasibilitystatus table then I don't want to display the record. 2. If there is only one record of indentid in status table and the same indentID has count0 in feasibilitystatus table then I don't want to display the record. Query: select distinct s.indentid from status s where s.status='true' and s.indentid not in( select case when count(s.indentid)>1 then (select indentid from feasibilitystatus group by indentid having count(indentid)>1) else (select indentid from feasibilitystatus group by indentid having count(indentid)>0) end as indentid from status) Error: An aggregate may not appear in the WHERE clause unless it is in a subquery contained in a HAVING clause or a select list, and the column being aggregated is an outer reference.

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  • Django says the "id may not be NULL" but why is it?

    - by Oli
    I'm going crazy today. I just tried to insert a new record and it threw back a "post_blogpost.id may not be NULL" error. Here's my model: class BlogPost(models.Model): title = models.CharField(max_length=100) slug = models.SlugField(max_length=100) who = models.ForeignKey(User, default=1) when = models.DateTimeField() intro = models.TextField(blank=True, null=True) content = models.TextField(blank=True, null=True) counter = models.PositiveIntegerField(default=0) published = models.BooleanField(default=False) css = models.TextField(blank=True, null=True) class Meta: ordering = ('-when', 'id') There are a number of functions beneath the model too but I won't include them in full here. Their names are: content_cache_key, clear_cache, __unicode__, reads, read, processed_content. I'm adding through the admin... And I'm running out of hair.

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  • Why am I getting "Collection was modified; enumeration operation may not execute" when not modifying

    - by ccornet
    I have two collections of strings: CollectionA is a StringCollection property of an object stored in the system, while CollectionB is a List generated at runtime. CollectionA needs to be updated to match CollectionB if there are any differences. So I devised what I expected to be a simple LINQ method to perform the removal. var strDifferences = CollectionA.Where(foo => !CollectionB.Contains(foo)); foreach (var strVar in strDifferences) { CollectionA.Remove(strVar); } But I am getting a "Collection was modified; enumeration operation may not execute" error on strDifferences... even though it is a separate enumerable from the collection being modified! I originally devised this explicitly to evade this error, as my first implementation would produce it (as I was enumerating across CollectionA and just removing when !CollectionB.Contains(str)). Can anyone shed some insight into why this enumeration is failing?

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  • MSVCRTD.lib(cpu_disp.obj) : warning LNK4210: .CRT section exists; there may be unhandled static init

    - by Johan
    Hi I know this question has popped up before but I could not find a good answer so I try here. I have a pure C dll (Win32) and I get this warning when compiling: MSVCRTD.lib(cpu_disp.obj) : warning LNK4210: .CRT section exists; there may be unhandled static initializers or terminators Everything seems to work just fine but I am concerned about this warning since I do not understad it. I have quite a few static variables but I do not understand what ".CRT section exist" means. What approach should I take to eliminate this warning. When I try to add the libs msdn suggests I get a ton of linker errors.

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  • What are some useful SQL statements that should be known by all developers who may touch the Back en

    - by Jian Lin
    What are some useful SQL statements that should be known by all developers who may touch the Back end side of the project? (Update: just like in algorithm, we know there are sorting problems, shuffling problems, and we know some solutions to them. This question is aiming at the same thing). For example, ones I can think of are: Get a list of Employees and their boss. Or one with the employee's salary greater than the boss. (Self-join) Get a list of the most popular Classes registered by students, from the greatest number to the smallest. (Count, group by, order by) Get a list of Classes that are not registered by any students. (Outer join and check whether the match is NULL, or by Get from Classes table, all ClassIDs which are NOT IN (a subquery to get all ClassIDs from the Registrations table)) Are there some SQL statements that should be under the sleeve of all developers that might touch back end data?

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  • What are some useful SQL statements / usage patterns that should be known by all developers who may

    - by Jian Lin
    What are some useful SQL statements that should be known by all developers who may touch the Back end side of the project? (Update: just like in algorithm, we know there are sorting problems, shuffling problems, and we know some solutions to them. This question is aiming at the same thing). For example, ones I can think of are: Get a list of Employees and their boss. Or one with the employee's salary greater than the boss. (Self-join) Get a list of the most popular Classes registered by students, from the greatest number to the smallest. (Count, group by, order by) Get a list of Classes that are not registered by any students. (Outer join and check whether the match is NULL, or by Get from Classes table, all ClassIDs which are NOT IN (a subquery to get all ClassIDs from the Registrations table)) Are there some SQL statements that should be under the sleeve of all developers that might touch back end data?

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  • No item exist at http://<servername>....Item may have been deleted ......

    - by Prakash
    I have a data view webpart of some other list on my Dispform.aspx page. I have added edit and create new links in it. Create new item link is workin fine but when I m clicking on edit, its showing me error: No item exist at http:....listname/Dispform.aspx?ID=1&Source=http://...listname/Allitems.aspx. It may have been deleted or renamed by other user. I found this post related to it. http://social.msdn.microsoft.com/Forums/en-US/sharepointcustomization/thread/e368d7c7-8878-4f74-a62b-9ebad50c6b9a But now in my case the problem is I don't wanna customize Allitems.aspx, and what I have understood in the above post guys have suggested that to change the query string.I can only customize DispForm.aspx. Now the query string which is passing by default is ID=@ID from Allitems.aspx to DispForm.aspx...and I have to use this ID query string variable in my parameter if I m passing it on to the next page. Anyone knows how to fix this? Thanks in advance,

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