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  • Serving static web files off a non-standard port

    - by Nimmy Lebby
    I'm close to deploying a Django project to production. I'm looking over some infrastructure decisions. Something that came up was serving static files with a different server such as lighttpd. However, we're starting off with a single dedicated server so our only option would be to use a non-standard port for the static file webserver. Is there precedence for this? I.e. Does anyone "big" do this? Any particular port I should use or shy away from using? Can anyone thing of some downsides of going this route?

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  • Windows authenticated users have lost access to master (default) database

    - by Rob Nicholson
    Something very strange has occurred on our production SQL database. Users connecting via Windows authentication appear to have lost all access to the master database. By default, all logins have the default database set to master. So when you connect using SQL Server management studio, they get the error: "Cannot open user default database. Login failed error 4064". What's also worrying is that we have a group called "COMPANY - SQL Administrator" which has sysadmin rights and users in this group also get the same error. Worse, they don't appear to be system administrators anymore... If they change their default database to something else, they can connect and then work on the database, it's just the master database that is problematic. I'm not even sure by what mechanism windows authenticated users get access to the master database. Is it something hard coded in or some property that's got changed? Any ideas? Cheers, Rob.

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  • Can I change a MySQL table back and forth between InnoDB and MyISAM without any problems?

    - by Daniel Magliola
    I have a site with a decently big database, 3Gb in size, a couple of tables with a dozen million records. It's currently 100% on MyISAM, and I have the feeling that the server is going slower than it should because of too much locking, so I'd like to try going to InnoDB and see if that makes things better. However, I need to do that directly in production, because obviously without load this doesn't make any difference. However, I'm a bit worried about this, because InnoDB actually has potential to be slower, so the question is: If I convert all tables to InnoDB and it turns out i'm worse off than before, can I go back to MyISAM without losing anything? Can you think of any problems I might encounter? (For example, I know that InnoDB stores all data in ONE big file that only gets bigger, can this be a problem?) Thank you very much Daniel

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  • ActiveRecord: Produce multi-line human-friendly json

    - by Mika
    Using ActiveRecord::Base.to_json I do: user = User.find_by_name 'Mika' {"created_at":"2011-07-10T11:30:49+03:00","id":5,"is_deleted":null,"name":"Mika"} Now, what I would like to have is: { "created_at":"2011-07-10T11:30:49+03:00", "id":5, "is_deleted":null, "name":"Mika" } Is there an option to do this? It would be great to have a global option, so that the behaviour be set depending on dev/live environment.

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  • HOWTO Catch/Redirect all outgoing e-mails from webapp on Windows Server 2003

    - by John
    As suggested by another member, I have split the original post into two. To see the original post, go to http://serverfault.com/questions/134595/howto-catch-redirect-all-outgoing-e-mails-on-win2k-and-redhat-enterprise. For this question, please keep your answers specific to Windows Server 2003 only. Thanks for the help in advance. Background: I am integrating two separate web application that are developed in ASP .NET and JSP/Struts. As such, they are hosted on two different server technologies, namely Win2K3 and Redhat Enterprise Server 5.5. Problem: There is a copy of production data in my test environment with real e-mail addresses. I need to test the e-mail functionality of these applications, but I do not want them to send out actual e-mails. Is there a way to catch and redirect all outgoing e-mails? Ideally, I would like to send all outgoing e-mails to another e-mail (i.e., [email protected]) so my testers can look at them.

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  • Less reboots on Windows Server Core, is this true or just a myth?

    - by Peter Hahndorf
    Because there are less components installed on a Windows Server core OS, it needs less patches than the full OS. I read in several places that therefor it needs less reboots after patching. I'm running Server 2012 core in production since September 2012 now and I don't remember a single patch-Tuesday when I did not have to reboot the server after installing Windows updates. Are there any hard numbers out there that compare the required reboots for core vs. Full OS? Less reboots may be the main reason why people choose to go with Server core. If it actually requires just as many reboots as the full OS install, they may think again the next time they set up a server.

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  • NT4 server generate too much weird DNS queries, How can i see the source PID?

    - by Hanan N.
    I have a NT4 server that in the last two weeks started to generate too many weird DNS queries to the DNS server is set to use. I have got warnings from the IPS system that it has blocked the responses from the DNS server back to the NT4 server. The queries it generate doesn't relate to any computer in the network, it is like 120624100088.xxxxxxx.net where xxx is the internal network, the numbers are just random at each query. I have done some research on how to get the PID that is generating the queries, and i found that only Process Monitor could give me that information, but since it is NT4 system Process Monitor doesn't work on it. It is a production server and i am just can't stop services as i want. I would like to get your advice on how can i get the PID that is generating these queries? Thanks.

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  • Exclude certain subfolders and domains in redirects

    - by Alexsander Akers
    This is a continuation from http://stackoverflow.com/questions/1704845/redirect-only-html-files How can I change my .htaccess to make it exclude certain subfolders or subdomains from the HTML-only redirect? I tried doing using this code to exclude the 'downloads' subfolder and the 'dev' and 'support' subdomains, but it didn't work: RewriteCond %{HTTP_HOST} ^pandamonia.us$ [OR] RewriteCond %{HTTP_HOST} ^www.pandamonia.us$ [OR] RewriteCond %{HTTP_HOST} !download [OR] RewriteCond %{HTTP_HOST} !faq RewriteCond %{HTTP_HOST} !support [OR] RewriteRule /.+\.html$ "http\:\/\/pandamonia\.us\/" [L]

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  • http server connectivity puzzle

    - by jpmartins
    I have been seeing some strange connection issue in the production environment. The setup has two IBM Http Server's (IHS) and a network IP load-balancer in front of them (round-robin). One instance the system is working fine, the next requests stop arriving at the IHS. Telnet directly to port 80 of the IHS is established sucessfully, but connection to the port 80 through the IP of the load-balancer fails! The puzzle comes next, the network admins say the load-balancer is working fine. When we finally reboot the IHS servers and request start flowing... The situation happened three times the last month and no obvious pattern was found. Any debug ideas?

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  • SystemIO Exception when opening RFCOMM in Mono

    - by Chief A-G
    I have a Mono application which opens a RFCOMM connection (/dev/rfcomm0) but when I run as a user, I get a System.IO.IOException Interrupted system call. I'm running this on openSUSE 11.2. If I run the application under sudo, it works fine. I have added the dialup group to my user account so I'm not getting a permission denied error. I'm not sure if this is a Mono serial comms question or a permissions question for ServerFault.

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  • Upgrade a legacy, expired RHEL 3.4.6 server to modern Centos/Scientific Linux

    - by Gabriel Tasiopoulos
    I have a machine running a legacy J2EE app. The code is not Maven-ized and it works with pretty old Java and Postgres versions. I have converted it to a VM in ESXI and I'd like to try to upgrade it to a modern, binary-compatible version of RHEL (Centos or Scientific LInux) and see if things would still work. Where should I start? Am I being too optimistic with this one? It's more of an experiment and I'm not doing it on a production machine. But given the OS is pretty old I am looking for a way to do this eventually. Many thanks

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  • How can I see logs in a server after a kernel panic hang?

    - by Low Kian Seong
    I am running a production gentoo Linux machine, and recently there was a situation where the server hung in my co-located premises and when I got there I noticed that the server was hung on what appeared to be a kernel panic hang. I rebooted the machine with a hard reboot and was disappointed to find out that I could not find a shred of evidence anywhere on why the machine hung. Is it true that when I do a hard reboot the messages itself will get lost or is there a setting I can do somewhere say in syslog-ng or maybe in sysctl to at least preserve the error log so that I can prevent such mishaps from happening in the future ? I am running a 2.6.x kernel by the way. Thanks in advance.

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  • Why is MySQL making the CPU run at about 80%?

    - by Robert
    MySQL is eating up about 80% of my CPU for no reason as far as I can see. Right now this server is rarely used, more of a test site I set up that will eventually be a used for production once I fix small problems like this. I run 3 instances of MySQL but it seems that my first instance is taking up all the CPU. When I turn off the first instance and leave the other two on everything runs fine. Any suggestions? I tried Show Processlist and no statements are being run besides "Sleep" and the query "Show Processlist" (obviously) at the time it's using up all this CPU. my.cnf is basic. I did not optimize or change any MySQL settings. Do you think this would cause such strange behavior? The machine is running Linux Centos 5.7 64 bit and MySQL 5.0.95. Thanks

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  • SSL_connect returned=1 errno=0 state=SSLv3 read server certificate B: certificate verify failed

    - by Vikash
    I am using Authlogic-Connect for third party logins. After running appropriate migrations, Twitter/Google/yahoo logins seem to work fine but the facebook login throws exception: SSL_connect returned=1 errno=0 state=SSLv3 read server certificate B: certificate verify failed The dev log shows OpenSSL::SSL::SSLError (SSL_connect returned=1 errno=0 state=SSLv3 read server certificate B: certificate verify failed): app/controllers/users_controller.rb:37:in `update' Please suggest..

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  • Benefits of log rotation

    - by Manfred Moser
    I have been using logrotation for years and never thought too much of it being a problem until I came across a question on stackoverflow (http://stackoverflow.com/questions/1508734/disable-java-log-rotation/) where someone wants to disable log rotation. To me with experience in having build server and even production servers cleaned up manually because logs are not rotated and discs are running out and suddenly machines come to a halt that all seems crazy, but it occurred to me that maybe it is not so obvious after all. So what are the benefits of log rotation? And what are the drawbacks (e.g. more difficult to debug/analyze maybe)? What tools do you find useful for working with rotated log files? Splunk I assume, but what else?

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  • How do I create a stored procedure that calls sp_refreshview for each view in the database?

    - by Allrameest
    Today I run this select 'exec sp_refreshview N''['+table_schema+'].['+table_name+']''' from information_schema.tables where table_type = 'view' This generates a lot of: exec sp_refreshview N'[SCHEMA].[TABLE]'. I then copy the result to the query editor window and run all those execs. How do I do this all at once? I would like to have a stored procedure called something like dev.RefreshAllViews which I can execute to do this...

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  • Mutliple VMs for Tomcat cluster vs Multiple Tomcat instances on one physical box

    - by Greymeister
    I'm working on a project that will be implemented into production using a cluster of Apache Tomcat instances and I'm looking for the best Hardware/OS solutions and VMs have come up as one option. I have run ESXi/ESX instances before for development and testing, but I'm curious for a hosting environment if having multiple VMs is actually worse than just configuring a server to host multiple instances of Tomcat. These are my guesses: Pros for VMWare Easier Maintenance/Backup for individual VMs (VMWare makes this easy) Can remote login to individual VMs without having to give host access (security?) Easier way to re-purpose machine for OS/Hardware changes Pros for running on one Physical Machine Overhead of only one OS (also no VMWare footprint) Update OS/security changes once One less administrative layer (No VM expertise required) I'm curious if anyone has any other ideas about what the benefits would be for either option.

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  • in django admin, can we have a multiple select based on choices

    - by Rasiel
    http://docs.djangoproject.com/en/dev/ref/models/fields/#choices i've read through the documentation and this implies using a database table for dynamic data, however it states choices is meant for static data that doesn't change much, if ever. so what if i want to use choices, but have it select multiple because the data i'm using is quite static, e.g days of the week. is there anyway to achieve this without a database table?

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  • asp.net mvc 2 method not found

    - by Debra
    When I run my asp.net mvc 2 site (shared hosting) I get the following error: Method not found: 'Void System.Web.Mvc.DataAnnotationsModelValidatorProvider.set_AddImplicitRequiredAttributeForValueTypes(Boolean)'. In the bin directory I have System.Web.Mvc.dll version 2.0.50217.0 On my local dev machine it runs fine. Is it possible that if the hosting provider has a different mvc 2 version installed it would cause this error? Thank you!

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  • How to check use of userva boot option on Win 2K3 server

    - by Tim Sylvester
    I have some 32-bit Win2K3 servers running an application that fails now and then apparently due to heap fragmentation. (Process virtual bytes grows, private bytes does not) I do not have access to the source code or build process of this application. I have modified the boot.ini file on one of these servers to include /userva=2560, half way between the normal mode of operation and the /3GB option. Normally it takes weeks to reach the point of failure, but I'd like to see right away whether this has actually had any effect. As I understand it, this option limits the kernel to the remaining address space (1536MB instead of 2048), but does not necessarily give an application the extra address space, depending on the flags in the application's PE header. How can I determine whether the O/S is allowing a particular application, running in production, to access address space above 2GB? Additionally, what's the best way to monitor the system to ensure that the kernel is not starved for address space, and more generally how should I go about finding the optimal value for this setting?

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  • Does AOL have a contacts api?

    - by wingoo
    In their dev site,AOL says the contacts api would coming soon from the year 2008-_- but I can't find anything about it since then, and I find in window live add contacts site: http://cid-7b76c1c8e1ade1ea.profile.live.com/connect/ They have a program to port contacts from AOL, that is this only for Microsoft. Is there another method to do this?

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  • Export symbol as png

    - by Etiennebr
    I'd like to export plotting symbols form R as a png graphic. But I haven't found a perfect way yet. Using png("symbol.png",width=20, height=20, bg="transparent") par(mar=c(0,0,0,0)) plot.new() symbols(1, 1, circles=0.3, bg=2, inches=FALSE, lwd=2, bty="n") dev.off() creates a little border around the symbol (I'd like it to be transparent) and the symbol isn't filling the whole space. Is there a more specific way of doing this ?

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