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Ougoing telnet: Unable to connect to remote host: Connection refused

- by brendan

I am trying to telnet from Ubuntu server (running Maverick) on ec2 to another machine I have set up not on ec2 - we'll call it "server-x". The two machines are connected via vpn. I can ping from the ec2 machine to server-x no problem. On another machine also on the vpn but also not on ec2 I can telnet to server-x without issue so it is accepting incoming connections on that port. But when I run telnet from the ubuntu instance to server-x I get : ubuntu@ip-10-111-11-11:~$ telnet 5.1.1.1 9143 Trying 5.1.1.1... telnet: Unable to connect to remote host: Connection refused Other telnets work like this: ubuntu@ip-10-111-11-11:~$ telnet imap.gmail.com 993 Trying 173.194.76.108... Connected to gmail-imap.l.google.com. Escape character is '^]'. I have disabled ufw on the ubuntu machine. Is there anything else that can be blocking this outgoing connection? I tried adding the outgoing port to iptables but I'm not certain I'm doing that right.

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Deployable dependencies in Visual Studio 2010 SP1 Beta

- by DigiMortal

One new feature that comes with Visual Studio 2010 SP1 Beta is support for deployment references. Deployment reference means that you can include all necessary DLL-s to deployment package so your application has all assemblies it needs to run with it in deployment package. In this posting I will show you how to use deployment dependencies. When I open my ASP.NET web application I have new option for references when I right-click on my web project: Add Deployable Dependencies… If you select it you will see dialog where you can select dependencies you want to add to your project package. When packages you need are selected click OK. Visual Studio adds new folder to your project called _bin_DeployableAssemblies. Screenshot on right shows the list of assemblies added for ASP.NET Pages and Razor. All DLL-s required to run ASP.NET MVC 3 with Razor view engine are here. I am not sure if NuGet.Core.dll is required in production but if it is added then let it be there. Deploy to Azure I tried to deploy my ASP.NET MVC project that uses Razor to Windows Azure after adding deployable references to my project. Deployment went fine and web role instance started without any problems. The only DLL reference I made as local was the one for System.Web.Mvc. All Razor stuff came with deployable dependencies. Conclusion Visual Studio support for deployable dependencies is great because this way component providers can build definitions for their components so also assemblies that are loaded dynamically at runtime will be in deployment package.

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How to manage credentials on multiserver environment

- by rush

I have a some software that uses its own encrypted file for password storage ( such as ftp, web and other passwords to login to external systems, there is no way to use certificates ). On each server I've several instances of this software, each instance has its own password file. At the moment number of servers is permanently growing and it's getting harder and harder to manage all passwords on all instances up to date. Unfortunately, some servers are in cegregated network and there is no access from them to some centralized storage, but it works vice versa. My first idea was to create a git repository, encrypt each password with gpg and store it there and deliver it within deployment system, but security team was not satisfied with this idea and as it is insecure to store passwords in repository even in encrypted view ( from their words ). Nothing similar comes to my mind. Is there any way to implement safe and secure password storage with minimal effort to manage all passwords up-to-date? ps. if that matters I've red hat everywhere.

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java.lang.OutOfMemoryError on ec2 machine

- by vinchan

I have a java app on a large instance that will spawn up to 800 threads. I can run the application fine as user "root" but not as another user which I created. I get the deadly. java.lang.OutOfMemoryError: unable to create new native thread at java.lang.Thread.start0(Native Method) at java.lang.Thread.start(Thread.java:657) at java.util.concurrent.ThreadPoolExecutor.addWorker(ThreadPoolExecutor.java:943) at java.util.concurrent.ThreadPoolExecutor.execute(ThreadPoolExecutor.java:1325) nightmare. I have tried increasing the stack size already in limits.conf to no avail. Please, help me out. What is different here for the root and other user?

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SQL Server 2012 Memory Manager KB articles

- by SQLOS Team

Since the release of SQL Server 2012 with a redesigned memory manager, a steady stream of KB articles have been produced by CSS to provide guidance on the new or changed options, as well as fixes that have been published.. How has memory sizing changed in SQL 2012? 2663912 Memory configuration and sizing considerations in SQL Server 2012 - http://support.microsoft.com/default.aspx?scid=kb;EN-US;2663912 Setting "locked pages" to avoid SQL Server memory pages getting swapped has been simplified, particularly for Standard Edition, the details can be found here: 2659143 How to enable the "locked pages" feature in SQL Server 2012 - http://support.microsoft.com/default.aspx?scid=kb;EN-US;2659143 Note the following deprecation (particularly relevant for 32-bit installations): 2644592 The "AWE enabled" SQL Server feature is deprecated - http://support.microsoft.com/default.aspx?scid=kb;EN-US;2644592 Note the following fixes available: 2708594 FIX: Locked page allocations are enabled without any warning after you upgrade to SQL Server 2012 - http://support.microsoft.com/kb/2708594/EN-US 2688697 FIX: Out-of-memory error when you run an instance of SQL Server 2012 on a computer that uses NUMA - http://support.microsoft.com/kb/2688697/EN-US Originally posted at http://blogs.msdn.com/b/sqlosteam/

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A Model for Planning Your Oracle BPM 10g Migration by Kris Nelson

- by JuergenKress

As the Oracle SOA Suite and BPM Suite 12c products enter beta, many of our clients are starting to discuss migrating from the Oracle 10g or prior platforms. With the BPM Suite 11g, Oracle introduced a major change in architecture with a strong focus on integration with SOA and an entirely new technology stack. In addition, there were fresh new UIs and a renewed business focus with an improved Process Composer and features like Adaptive Case Management. While very beneficial to both technology and the business, the fundamental change in architecture does pose clear migration challenges for clients who have made investments in the 10g platform. Some of the key challenges facing 10g customers include: Managing in-process instance migration and running multiple process engines Migration of User Interfaces and other code within the environment that may not be automated Growing or finding technical staff with both 10g and 12c experience Managing migration projects while continuing to move the business forward and meet day-to-day responsibilities As a former practitioner in a mixed 10g/11g shop, I wrestled with many of these challenges as we tried to plan ahead for the migration. Luckily, there is migration tooling on the way from Oracle and several approaches you can use in planning your migration efforts. In addition, you already have a defined and visible process on the current platform, which will be invaluable as you migrate. A Migration ModelThis model presents several options across a value and investment spectrum. The goal of the AVIO Migration Model is to kick-start discussions within your company and assist in creating a plan of action to take advantage of the new platform. As with all models, this is a framework for discussion and certain processes or situations may not fit. Please contact us if you have specific questions or want to discuss migrations efforts in your situation. Read the complete article here. SOA & BPM Partner Community For regular information on Oracle SOA Suite become a member in the SOA & BPM Partner Community for registration please visit www.oracle.com/goto/emea/soa (OPN account required) If you need support with your account please contact the Oracle Partner Business Center. Blog Twitter LinkedIn Facebook Wiki Technorati Tags: Kris Nelson,ACM,Adaptive Case Management,Community,Oracle SOA,Oracle BPM,OPN,Jürgen Kress

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Frank Ludolph's Last Day at Work

- by mprove

Hi Frank, today is your last day at Oracle. I cannot belief that retirement is an alternative to designing software and improving products for decades. I might figure it out myself in a couple of years. Our ways have crossed several times. And I am extremely thankful for that. I still remember my first session on an Apple Lisa. It must have been around 1985. I was still in school, and we were visiting the University of Hamburg to get some orientation on the departments. When I started I chose Informatics. And I suppose the Apple Lisa played a significant role in my decision. Is it fate that I later wrote about Apple Lisa? I’ve attended your presentation and public demo of the Lisa System at CHI ’98 in Los Angeles. Maybe a video still exists. I should look it up and publish it somewhere. You had also booth duty for Sun Microsystems – presenting HotJava Views, a user interface for a network computer. And you were handing out VHS tapes (!) of Starfire. I still have mine – but no player anymore. Then I joined Sun in 2002, and I guess I popped up in your office each time when I came to Santa Clara. The SEED mentoring program finally made it possible that we exchanged and discussed many ideas on the past and future of HCI. Dueling Interaction Models of Personal-Computing and Web-Computing at MEDICI 2007 is one of the results. But do you remember for instance also our jam session with Phil Clevenger on Hello World? Marvelous! I will miss you at Oracle. Enjoy your life and let’s stay in touch.Matthias

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IIS7 URL Rewrite - Rewrite CSS files

- by user1231958

I'm trying to rewrite certain CSS files with some rules, so it replaces every single instance of links in the CSS (as in background: url("/myuri.jpg")) with a prefix (as in background: url("/zeus/myuri.jpg")) These are the rules. <rule name="ReverseProxyOutboundRule2" preCondition="IsCSS" enabled="true" stopProcessing="false"> <match filterByTags="None" pattern="url\("(.*)"\)" /> <action type="Rewrite" value="url("/zeus{R:1}")" /> <conditions> <add input="{URL}" pattern="/zeus" /> </conditions> </rule> <preCondition name="IsCSS"> <add input="{RESPONSE_CONTENT_TYPE}" pattern="^text/css" /> </preCondition> However, only one url is being replaced this way and somehow the rest is being ignored. Thank you beforehand.

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Linux: close a program with command line (not kill it)

- by CodeNoob

Some applications only allow one running instance (like eclipse, if you want to use the same workspace). So if I log in from another location, I have to kill/close the application that was open when I previously logged in from another location. I always use kill command to kill the running process. But, if you kill a process, it might not save some states that are useful for future usage. However, if you "close" it properly byclicking on the close button, for example, it will save the states properly. Is there a way to properly "close" an application from command line? I know this can vary from applications, so let's be a bit more generic: how to send a signal to another running application, and this signal works just as if we click the "close" button in the top bar? thanks!

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Apache, and logrotate instances

- by OlivierDofus

Hi! If I have one website and I want to rotate its logs, there's one instance of logrotate that is launched. There are as many logrotate instances launched as they are virtual websites. Here you can find mod_log_rotate, with a 1.3 version and (only) 2.0 version: http://www.hexten.net/wiki/index.php/Mod-log-rotate It's 6 years old. Is there something new, or maybe is there something like that in recent Apache versions? I didn't find anything like that, and I don't know if this code is still "usable" for recent Apache versions (2.2.x) Don't hesitate to edit my post to make it proper English, thanks a lot!

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Adobe Flash not working anymore with Browsers

- by Marcus

Hi guys, I have a really annoying problem: essentially, Adobe Flash is not working anymore. For instance, I cant watch any clip on youtube and I always get a black screen saying: Movie not loaded ... I have the newest Flash version (10.0.45.2), and the problem is the same with IE, Firefox or Chrome. I am using WIN XP and I turned of Antivirus software as well as Firewall, still I cant watch any flash stuff. Anyone an idea what could have happened in the last week? Never had a problem before that! Thanks!

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DFS keeps constantly replicating almost all files

- by Adrian Godong

We have always had problems with DFS, but recently it has gotten worse (with no apparent reason) to the point it's becoming harmful. We have one master server and DFS connections to other four servers. The four severs don't modify any files, so all replications always propagate from the master to the four other servers. The replicated directory has about 900,000 files. In the recent weeks, every time we check DFS, the DSF backlogs have hundredths of thousand of files. For instance now, the master server now replicates about 700,000 to three of the four servers while the fourth one is fine. Sometimes, only one is off, sometimes two and this time three. Also, it is never the same set of servers. It is inconceivable that something periodically touches all 900,000 files. The biggest change which happens is a scheduled update of several thousand files every six hours. Does anybody have the same problem? Is it a known issue?

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Google Apps email forwarding to a mailbox within the same domain

- by Anton Gogolev

It's either me or this feature doesn't work. I have a Google Apps account (non-paid) for example.com set up fine and dandy. Among other addresses, there are support@ and employee@. Now I want to set up Filters such that all mail sent to support@ should be forwarded to employee@. Note that this is not POP3/IMAP forwarding: I really need to do this with filters. The problem is as such: when an email arrives to support@ it is never ever forwarded to an address within the same domain, but is forwarded perfectly fine to some "outside" address (for instance, forwarding to my personal GMail account works flawlessly). How do I set up Filters to forward email propely?

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Linux Flash Player with 2 Monitors: always full-screen on primary monitor

- by CarlF

My setup at home uses a laptop, with a larger external monitor in addition to the built-in LCD panel, which is primary. I can see the larger monitor from the rest of the room and use it as my TV, for playing DVDs and various types of web video. However, it isn't ideal for Flash video. For instance, if I watch a video from Hulu or any other Flash-based site, I can expand it to full-screen mode. However, no matter which monitor the browser window is on, the full-screen mode is always on the laptop LCD panel, which is both too small and not visible from most of the room. Does anyone know of a way to force the Flash video to play full-screen on the monitor I select instead of the primary? My video chipset is NVidia, using kernel 2.6.31 (Ubuntu). Thanks.

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Should I use an ssl terminator or just haproxy?

- by Justin Meltzer

I'm trying to figure out how to set up my architecture for a socket.io app that will require both https and wss connections. I've found many tutorials on the web suggesting that you use something like stud or stunnel in front of haproxy, which then routes your unencrypted traffic to your app. If I were to go this route, is it suggested that haproxy and the ssl terminator be on separate instances, or is it fine if they are on the same EC2 server instance? If I do not want to use a separate ssl terminator, could I use haproxy to terminate the ssl? Or instead would it be possible to proxy these https and wss connections to my application and have the node app terminate the ssl itself?

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Should DKIM signing happen in the application or the MTA?

- by thomasrutter

I'm trying to weigh up whether DKIM signing should be done by the application sending mail (for instance, the mailing list software you're using) or at the mail transfer agent (sendmail, postfix etc). Do you know any good arguments either way? As far as I can see, doing it at the MTA, such as with dkim-milter, is a lot easier to set up. However, if anyone gets access to the server, even just a normal unprivileged account such as a web hosting client's login, they'd be able to send email using sendmail and get the full blessing of my DKIM signature. What do you think is the best solution for my situation? I'm using a Debian server with apache, postfix, php&mysql, etc.

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July, the 31 Days of SQL Server DMO’s – Day 3 (sys.dm_exec_connections)

- by Tamarick Hill

The third DMV we will review is the sys.dm_exec_connections DMV. This DMV is Server-Scoped and displays information about each and every current connection on your SQL Server Instance. Lets take a look at some information that this DMV returns. SELECT * FROM sys.dm_exec_connections After reviewing this DMV, in my opinion, its not a whole lot of useful information returned from this DMV from a monitoring or troubleshooting standpoint. The primary use case I have for this DMV is when I need to get a quick count of how many connections I have on one of my SQL Server boxes. For this purpose a quick SELECT COUNT(*) satisfies my need. However, for those who need it, there is other information such as what type of authentication a specific connection is using, network packet size, and client/local TCP ports being used. This information can come in handy for specific scenarios but you probably wont need it very much for your day to day monitoring/troubleshooting needs. However, this is still an important DMV that you should be aware of in the event that you need it. For more information on this DMV, please see the below Books Online link: http://msdn.microsoft.com/en-us/library/ms181509.aspx

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ls returns nothing only in certain directories

- by Jakobud

I have a raid drive mounted here: /data/ And certain directories like this one: /data/somedir/somesubdir/ when I run ls w/ or w/o any flags, terminal doesn't return anything. It does not return an empty directory listing. It simply goes to the next line and sits there blank with no prompt coming up. I cannot CTRL-C out of it. I have to close this terminal instance and start over. At first I thought it was something to do with the ls command, but its pointing to /bin/ls and I can ls other directories just fine. Also, running this find /data/somedir/somesubdir immediately finds all the files just as expected.

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Random Monday Thoughs

- by Terry Goldman

On this Monday morning my thoughts center on why is it so hard to embrace governance, any form of governance for that matter, be it software development governance, SOA governance, data governance, IT governance, so on a so fourth?Most customers that I meet tend to think that they don't need don't need governance as all is good within the enterprise. The question I generally pose to colleges and customers, is you have to think of governance as an insurance policy. Take of instance, if you just bought a new car, perhaps your "dream" car, would you drive it on the open streets without having the car insured? Probably not.Governance is what insurance is to new cars, be it to SOA, IT transformations and software development. Governance is a insurance policy against risk of failure. Now once I put it in this context, ask yourself, does governance have value to your organization? Most people now get it. Once the seed of governance is planted at the executive level of an organization, it becomes a exercise in planting an that idea into key personnel within the organization. Then the justification for governance grows and grows across the enterprise.Thats my food for though in this Monday morning.FYI, stay tuned for an upcoming multi-part article on using Oracle Enterprise Repository to build a Enterprise Continuum as described in TOGAF v9.0.

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Where is the SQL Azure Development Environment

- by BuckWoody

Recently I posted an entry explaining that you can develop in Windows Azure without having to connect to the main service on the Internet, using the Software Development Kit (SDK) which installs two emulators - one for compute and the other for storage. That brought up the question of the same kind of thing for SQL Azure. The short answer is that there isn’t one. While we’ll make the development experience for all versions of SQL Server, including SQL Azure more easy to write against, you can simply treat it as another edition of SQL Server. For instance, many of us use the SQL Server Developer Edition - which in versions up to 2008 is actually the Enterprise Edition - to develop our code. We might write that code against all kinds of environments, from SQL Express through Enterprise Edition. We know which features work on a certain edition, what T-SQL it supports and so on, and develop accordingly. We then test on the actual platform to ensure the code runs as expected. You can simply fold SQL Azure into that same development process. When you’re ready to deploy, if you’re using SQL Server Management Studio 2008 R2 or higher, you can script out the database when you’re done as a SQL Azure script (with change notifications where needed) by selecting the right “Engine Type” on the scripting panel: (Thanks to David Robinson for pointing this out and my co-worker Rick Shahid for the screen-shot - saved me firing up a VM this morning!) Will all this change? Will SSMS, “Data Dude” and other tools change to include SQL Azure? Well, I don’t have a specific roadmap for those tools, but we’re making big investments on Windows Azure and SQL Azure, so I can say that as time goes on, it will get easier. For now, make sure you know what features are and are not included in SQL Azure, and what T-SQL is supported. Here are a couple of references to help: General Guidelines and Limitations: http://msdn.microsoft.com/en-us/library/ee336245.aspx Transact-SQL Supported by SQL Azure: http://msdn.microsoft.com/en-us/library/ee336250.aspx SQL Azure Learning Plan: http://blogs.msdn.com/b/buckwoody/archive/2010/12/13/windows-azure-learning-plan-sql-azure.aspx

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Enabling Multiple Monitor Support from Terminal Services/Remote Desktop over Citrix

- by Nicolas Webb

Our Remote Desktop/Terminal Services solution where I work relies on Citrix for machines not connected via the VPN. We're using Citrix Xen server (I'm pretty sure) and I'm going to try to connect to a Windows 7 Host (my work computer) and I think the RDC client runs on a Win2003 host (exposed via Citrix). Is it possible to take advantage of Windows 7 multiple monitor support for RDC with this setup? Would I need to try getting my Citrix guys to have a different host machine for the RDC (Win2008, or Win7?)? I'm probably going to connect using the OS X Citrix client, but I'd be willing to BootCamp/Fusion up a Windows instance to work remotely, as well. I really want to be able to use multiple monitors remotely. It does "span" multiple montiors currently (I have a 3000x1024 desktop, for example) but I'd rather it be "true" multiple monitor instead of one giant desktop, if possible.

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C# with keyword equivalent

- by oazabir

There’s no with keyword in C#, like Visual Basic. So you end up writing code like this: this.StatusProgressBar.IsIndeterminate = false; this.StatusProgressBar.Visibility = Visibility.Visible; this.StatusProgressBar.Minimum = 0; this.StatusProgressBar.Maximum = 100; this.StatusProgressBar.Value = percentage; Here’s a work around to this: With.A<ProgressBar>(this.StatusProgressBar, (p) => { p.IsIndeterminate = false; p.Visibility = Visibility.Visible; p.Minimum = 0; p.Maximum = 100; p.Value = percentage; }); Saves you repeatedly typing the same class instance or control name over and over again. It also makes code more readable since it clearly says that you are working with a progress bar control within the block. It you are setting properties of several controls one after another, it’s easier to read such code this way since you will have dedicated block for each control. It’s a very simple one line function that does it: public static class With { public static void A<T>(T item, Action<T> work) { work(item); } } You could argue that you can just do this: var p = this.StatusProgressBar; p.IsIndeterminate = false; p.Visibility = Visibility.Visible; p.Minimum = 0; p.Maximum = 100; p.Value = percentage; But it’s not elegant. You are introducing a variable “p” in the local scope of the whole function. This goes against naming conventions. Morever, you can’t limit the scope of “p” within a certain place in the function.

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Oracle SOA Suite for healthcare integration Dashboard By Nitesh Jain

- by JuergenKress

Oracle SOA Suite Healthcare came up with a new way of monitoring where user can configure a dashboard and follow the dynamic runtime changes. Oracle SOA Suite for healthcare integration dashboards display information about the current health of the endpoints in a healthcare integration application. You can create and configure multiple dashboards as needed to monitor the status and volume metrics for the endpoints you have defined. The Dashboards reflects changes that occur in the runtime repository, such as purging runtime instance data, new messages processed, and new error messages. You can display data for various time periods, and you can manually refresh the data in real time or set the dashboard to automatically refresh at set intervals. Dashboard shows the following information: Status: The current status of the endpoint, such as Running, Idle, Disabled, or Errors. Messages Sent: The number of messages sent by the endpoint in the specified time period. Messages Received: The number of messages received by the endpoint in the specified time period. Errors: The number of messages with errors for the endpoint in the given time period. Last Sent: The date and time the last message was sent from the endpoint. Last Received: The date and time the last message was received from the endpoint. Last Error: The date and time of the last error for the endpoint. It also shows the detailed view of a specific Endpoint. The document type. The number of messages received per second. The total number of message processed in the specified time period. The average size of each message. For more information please visit Nitesh Jain blog SOA & BPM Partner Community For regular information on Oracle SOA Suite become a member in the SOA & BPM Partner Community for registration please visit www.oracle.com/goto/emea/soa (OPN account required) If you need support with your account please contact the Oracle Partner Business Center. Blog Twitter LinkedIn Mix Forum Technorati Tags: SOA Suite,SOA heathcare,soa health,SOA Community,Oracle SOA,Oracle BPM,Community,OPN,Jürgen Kress

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SQL SERVER – Fun Post – Connecting Same SQL Server using Different Methods

- by pinaldave

Yesterday I had faced error when I was connecting SQL Server using 127.0.0.1. I had immediately checked if SQL Server is working perfectly by connecting to it by specifiing my local box computer. While I was doing this suddenly I realize that it is indeed interesting to know how many different way we can connect to SQL Server which is installed in the local box. I created list of 5 different way but I am sure there are many more ways and I would like to document there here. Here is my setup. I am attempting to connect to the default instance of SQL Server from the same system where it is installed. Method 1: Connecting using local host IP 127.0.0.1 Method 2: Connecting using just a single dot (.) Method 3: Connecting using (local) Method 4: Connecting using localhost Method 5: Connecting using computer name – in my case it is BIG Here are my two questions for you? (Scroll below the image) 1) Which is your favorite method? 2) What are other methods you are familiar with to connect to local host? Reference: Pinal Dave (http://blog.SQLAuthority.com) Filed under: PostADay, SQL, SQL Authority, SQL Query, SQL Server, SQL Tips and Tricks, T SQL, Technology

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Which browser does my computer use to open a Web page? [on hold]

- by msh210

I know little about networking the Internet, but, from what I understand, it works — very approximately — as follows: I, sitting at the computer example.com, send a message saying, roughly, "get http://s.tk" to my ISP, which passes the message along, eventually to the machine at s.tk. The s.tk machine gets "example.comhas sent 'gethttp://s.tk'", so sendssomefileto its ISP which passes the file along, eventually to the machine atexample.com`. When the file gets back to example.com, my computer, how does my computer know what to do with it? I'm sure the headers (or something else) indicate it's a Web page rather than, say, a Usenet post — that's not my question. My question is: how does it know whether to display the Web page in my open Opera window or my open Firefox window, or my other open Firefox window, or, heck, to open a new browser instance?

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