Tag | Servers Posts

After reading this section you should be able to Understand methods of network design unique to TCP/IP networks, including subnetting, CIDR, and address translation Explain the differences between public and private TCP/IP networks Describe protocols used between mail clients and mail servers, including SMTP, POP3, and IMAP4 Employ multiple TCP/IP utilities for network discovery and troubleshooting Designing TCP/IP-Based Networks The following sections explain how network and host information in ...
After reading this section you should be able to Identify the characteristics of a network that keep data safe from loss or damage Protect an enterprise-wide network from viruses Explain network and system level fault tolerance techniques Discuss issues related to network backup and recovery strategies Describe the components of a useful disaster recovery plan and the options for disaster contingencies What are integrity and availability? Integrity – the soundness of a networks programs, data, services, ...
It has been a week since we moved our Geekswithblogs.net System to a new set of load balanced servers and everything has been going great. I am so amazed at the performance of the new hardware. On average, we only use less than 5% of the CPU at any given moments or the database and web servers. I have seen a performance boost in page load as well, but I will have to confirm that with the statistics as they roll in. This is all in preparation for a new community we are launching with some friends ...
MapRedux – #PowerShell and #Big Data Have you been hearing about “big data”, “map reduce” and other large scale computing terms over the past couple of years and been curious to dig into more detail? Have you read some of the Apache Hadoop online documentation and unfortunately concluded that it wasn't feasible to setup a “test” hadoop environment on your machine? More recently, I have read about some of Microsoft’s work to enable Hadoop on the Azure cloud. Being a "Microsoft"-leaning technologist, ...
In our last post I demonstrated how to implement the datagram channel shape, and in the second and third post I described the request reply shape. In this post I will explain the last MEP in WCF, duplex, which is the most complex one. Basis of the Duplex Channel Shape (MEP) In the MSDN document it said that “The duplex MEP allows an arbitrary number of messages to be sent by a client and received in any order. The duplex MEP is like a phone conversation, where each word being spoken is a message. ...
We wanted to follow recommendation from http://omaralzabir.com/best... to“add “From” header and set the server name. I do this on each webserver and specify different names on each box. It’s handy to see from which servers requests are being served. When you are trying to troubleshoot load balancing issues, it comes handy to see if a particular server is sending requests” However one of the client of our rest service reported that From value in the response ...
Did you know you can set your DNS Servers from the command prompt using the NETSH command (available in win 2003 and later)? You can even specify the order in which the servers are registered in the DNS lookup netsh interface ip set dns "Local Area Connection" static 8.8.8.8 netsh interface ip add dnsservers "Local Area Connection" 8.8.4.4 index=2 netsh interface ip add dnsservers "Local Area Connection" 10.0.8.100 index=3 If you want to configure DNS to use DHCP: netsh interface ip set dns “Local ...
Recently I had a user come up and state that when they would make a new announcement the time would be off by 2 hours. They said they had checked the servers and time settings were fine and could there be anything else that might be off? Well, yes there could and most likely is. There is a regional setting option setting that you can get to by going to:1. Problem page2. Site Actions > Site settings3. Regional settings (under Site Administration)4. Time Zone settingsNow, this might work well for ...
v\:* {behavior:url(#default#VML);} o\:* {behavior:url(#default#VML);} w\:* {behavior:url(#default#VML);} .shape {behavior:url(#default#VML);} Normal 0 false false false false EN-GB X-NONE X-NONE /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin-top:0cm; mso-para-margin-right:0cm; mso-para-margin-bottom:10.0pt; ...
Normal 0 false false false EN-GB X-NONE X-NONE /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin-top:0cm; mso-para-margin-right:0cm; mso-para-margin-bottom:10.0pt; mso-para-margin-left:0cm; line-height:115%; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri","sans... mso-ascii-font-family:Calibri; ...
In the lifespan of an organisation it’s messaging environment be transitioned to a newer version several times. Whilst this is not a complicated thing to do it does require some level of planning and thought. I’ll be addressing the transitioning from Exchange 2003 to 2007 from a fairly simple view here. Since the general outlines of the process are the same for nearly every situation there is no need for different detailed documents on this. We’ll be working with the following infrastructure in this ...
Exchange is a complex and large product which can have one thousand and one possible issues, one more obscure as the next. The purpose of this guide is to shed some light, where possible, to how things work in Exchange (and outlook), how they can break and how you should approach the issue at hand. Unfortunately it is very time consuming to create a complete troubleshooting guide where every dependency is explained in detail. But that is not the aim of this document anyways. What is the aim? Give ...
Troubleshooting the information store service can be straightforward yet immensely complicated if you don’t know what is going on. For this reason I think it is important to know that there are 3 likely culprits that will cause your information store service to go down and refuse to come up: · Database problems · Active directory problems · Antivirus software Trying to work out which is the culprit can be hard, elimination is probably the easiest way to work through this… So let us get started! 1. ...
Usually you’ll get alerted to this issue with a call saying that users have not gotten any new email for a while. They will still be connected to Exchange in outlook, you can still log on to the OWA and, when looking at your hub servers, you can see that the all services are up and running (Note that it is possible the transport service could be stopped…). A number of reasons can exist as to why you are not getting any mail flow: · Your recipient polies are not configured correctly · The receive ...
We all get those requests where there is a certain service that requires to send mails by using your company email server. Whilst an open relay is generally a way to get your domain blacklisted forever, allowing an internal relay is usually a necessity. By default Exchange is setup to deny relaying from any IP address, including your internal network. In this section I will show you how to allow relaying from your internal network. Exchange 2003: 1. Open the Exchange system manager 2. Expand the ...
It’s known that on web Farm using of eTags under IIS doesn’t work properly unless all servers are synchronized.http://support... suggests to synchronize the ETag values on all the Web servers that are running IIS using Mdutil.exe that should be extracted from Windows CDhttp://developer.yahoo.co... to use iiscnfg.vbs script (with the /copy switch) to keep cluster configuration synced up, this keeps the MDETAGCHANGENUMBER ...
Step 9: Completing the Database Setup: This step is a very critical step and should performed with very much attention. Below mentioned steps are the ones which I thought were required for the environment I was building but I very highly recommend that you perform this step from the Oracle Installation document which can be found here. Look at Chapter 7 in this document. Updating PeopleTools System Tables: Here PS_HOME is the directory where you have installed your PeopleTools. In our case its C:\PT852 ...
After reading this chapter you should be able to Identify and explain the functions of the core TCP/IP protocols Explain how the TCP/IP protocols correlate to layers of the OSI model Discuss addressing schemes for TCP/IP in IPv4 and IPv6 Describe the purpose and implementation of DNS and DHCP Identify the well-known ports for key TCP/IP services Describe common Application layer TCP/IP protocols Characteristics of TCP/IP (Transmission Control Protocol / Internet Protocol) TCP/IP is a suite of specialized ...
After reading this you should be able to Identify a variety of uses for WANs Explain different WAN topologies, including their advantages and disadvantages Compare the characteristics of WAN technologies, including their switching type, throughput, media, security, and reliability Describe several WAN transmission and connection methods, including PSTN, ISDN, T-carriers, DSL, broadband cable, ATM and SONET Describe multiple methods for remotely connecting to a network WAN Essentials A WAN is a network ...
The SQL Azure Federation had been publically launched several weeks ago and this is one of the most existing features I’m looking forward. This might be the first post of SQL Azure Federation, and hopefully not the last one. Some Backgrounds SQL Azure Federation was mentioned in about 2009. The Microsoft told that there will be a feature in SQL Azure allow users to split one database into many based on some sort of rules But from the client side perspective, user can interact their data as if in ...
With TFS 2010 a basic installation of TFS has been reduced to a matter of clicks, the pain however lies in getting an appropriate environment provisioned from the Infrastructure team. There will be planned and unplanned downtime as the infrastructure team takes the environment down for patching. There are various TFS hosting services available out there that’ll take this pain point away from you. Some of the leading players amongst others include DiscountASP.net, TeamDevCentral, Praktik Hosting… ...
Today at one of my customers I ran into a strange issue after they changed their network subnet from 24 to 23 bits. When troubleshooting this issue we found out that mostly the first ping from a xp/2003 system to the 2008 systems got a reply and afterwards some did some didn't. Especially hosts in the extended part of the subnet were unable to reply. looking at the arp table on both sides showed us something strange on the 2008 systems. the 2008 servers showed us a arp table like below: 192.168.11.4 ...

I was recently made aware of a couple of people having issues with WCF services (or ASP.NET applications) when using the MVVM Light project template for Silverlight. There is a blog post and a StackOverflow question, so what exactly is happening there?

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Renaming SharePoint service app databases When you install SharePoint 2010 and use the wizards, you will be asked which services you’d like to install. By default all but Lotus-Notes-Connector are preselected. SharePoint will install the services and assign a plethora of databases to serve these services. Alas, horror of horror, all these databases are named by Microsoft and all end with GUIDs. DBAs and other keepers of standards abhor it. Sometimes they even go a step further and want the DB names ...
MS knowledge base article which is of interest: Consider the following scenario: You have multiple servers that are running Microsoft Exchange Server. The servers that are running Exchange Server are hosted in a VMware ESX environment. The servers that are running Exchange Server are part of a Windows Network Load Balancing cluster. Windows Network Load Balancing is configured to run in unicast mode. In this scenario, Windows Network Load Balancing may not work correctly. For example, network traffic ...
Consider this article on DNS a prequel to the upcoming ADDS series. After all, any active directory implementation requires DNS integration. So what is DNS? DNS is a highly reliable, hierarchal, distributed and scalable database used for name resolution and service location. So basically it translates friendly names (www.contoso.com) in to IP addresses (11.12.13.14) allowing clients to connect to resources in the infrastructure without memorising pesky IP numbers. History of DNS When the DoD initially ...
In my search for a way to allow readers to tweet post that I put on GWB I have come across the TweetMeme plug-in for Windows Live Writer. It automatically puts a twitter button at either the top or bottom of your post depending on how you configure it. It comes with a warning that it does not work with blog servers that strip out script from posts which I made me afraid it was going to make it incompatible with GWB. This turned out to be the case so I figured we would need either an upgrade to the ...
This blog post sounds specific but most of the troubleshooting tips can be applied to other scenarios: Troubleshooting Microsoft Message Queuing Issues on Microsoft Lync Server 2010 Microsoft Message Queuing (MSMQ) plays an important role in the Microsoft Lync Server 2010 Monitoring/Archiving server infrastructure: in a distributed network environment, MSMQ is used to transmit data from agents located on other servers (such as Front End Servers) to Monitoring/Archiving servers. The purpose of this ...
Microsoft Lync Server 2010 communications software and its client software, such as Microsoft Lync 2010, enable your users to connect in new ways and to stay connected, regardless of their physical location. Lync 2010 and Lync Server 2010 bring together the different ways that people communicate in a single client interface, are deployed as a unified platform, and are administered through a single management infrastructure. Workload Description IM and presence Instant messaging (IM) and presence ...
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Updated 29th June 2013: Microsoft is now previewing Load Test Service in TFS Service. Please check out more on the official offering by navigating to http://aka.ms/loadtfs Azure is fascinating, but even more fascinating is the marriage of Azure and TFS! Introduction Recently a client I worked for had 2 major businesses critical applications being delivered, with very little time budgeted for Performance testing, we immediately hit a bottleneck when the performance testing phase started, and the in ...
© 2011 By: Dov Trietsch. All rights reserved finding a person in the forest or Limiting the AD result in SharePoint People Picker There are times when we need to limit the SharePoint audience of certain farms or servers or site collections to a particular audience. One of my experiences involved limiting access to US citizens, another to a particular location. Now, most of us – your humble servant included – are not Active Directory experts – but we must be able to handle the “audience restrictions” ...
UPDATED March 24th 2016: Test Data Retention is now added to TFS 2015 Update 1, see this post for more information.UPDATED Apr 15th 2013: Corrected to VS2012 Update 2 UPDATED Mar 23rd 2012: Added information about VS 11 UPDATED Mar 21st 2012: Added info and link to VS/TFS 11 tool for getting the Test Attachment Cleaner, now included with the TFS Power Tools UPDATED Mar 17th 2012: Added sql queries for TFS 11 Beta. Changed structure after Adam’s advices. Updated information. UPDATED Jan 9th 2012: ...
A very intriguing issue came to me to debug .Net code called from X++ code in AX 2012. This was indeed a challenge to be nailed down. Luckily the tools and some concepts helped me to achieve this task. Here it goes... We need to do a seamless debugging from AX debugger to Visual Studio back and forth. To enable this we need to first see if the dll to be debug is present in GAC then we might need to uninstall it from it due to the order of preference .NET loads the assemblies. The assemblies are first ...
The first of the build guides just got published! And you can find it in the "Build Guide" section or by following link: Click here... Exerp: In this first part of the build guide series we look at building a Microsoft Windows 2008 R2 server. Whilst installing the basic operating system on a server is fairly straightforward it is as good a place as any to start as we lay the foundations for the rest of our infrastructure. In future parts of this series we will look at automating this install as much ...
This is just a reminder for my self of how and why we do this. We have 2 projects within a TFS project collection for our integration component developments. We have: 1. A project for .net based integration projects 2. A project for BizTalk based integration projects The main reason we do this is so we dont have loads of TFS projects as we have a significant number of components but also we want some different rules around check in and source control locks etc etc..... At this stage our build servers ...
The evolution of an IT department is always something interesting to observe. The is especially the case when they move from small departmental IT groups to corporate level oversight. It is usually painful for the people involved to give-up their ability to modify servers on the fly and conform to rigorous testing and documentation. Having the keys to your environments taken away can really feel like getting stabbed in the back especially when the new deployment team is still working out there processes. ...
Sometimes you just wish Exchange would not act as a total baby! I worked on a case today which had 2 Exchange 2010 servers in a DAG with about 6 mailboxes, all in healthy status. All but one that is. This DataBaseCopy just would not come back into sync and was stuck in the eternal Resynchronizing loop from hell. So our client cried for help. First thing you would want to do is to get a status of the database by running get-mailboxdatabasecopystatus -id "databasename\servername" | fl. This should ...
About a month ago, Microsoft announced the release of Lync for Mac. If you have access to TechNet or MSDN you likely have access to download this tool. Among the benefits of the tool, being able to connect to Office 365. Exciting news, yet for some odd reason it was a battle if you had upgraded to Lion (have not heard of anyone having issues that is running on Snow Leopard). Microsoft then released an update for Lync for Mac. Now, after the update, it was still no dice for me. Upon further research ...
DropkicK (DK) has been in development for over two years and has been used for production deployments for over a year. Dru Sellers originally posted about DK back in 2009. While DK isn’t yet as super easy to grok as some of the other ChuckNorrisFramework tools and offers little in the idea of conventions, it is still a stellar framework to use for deployments. DK works well in environments where you know all of the environments you will deploy to ahead of time (although not required due to the ability ...
I was recently helping a client do some capacity planning for an upcoming TFS Lab Management deployment. I was being kind of lazy so I just sent them over the Capacity Planning Calculator spreadsheet that the great folks in the ALM Ranger team released with their LM guidance: http://ralabman.codeplex.com/ Less than a day later and they're calling me up telling me the spreadsheet doesn’t make any sense. So I fire it up, punch in some numbers for a fictional team, and sure enough the numbers it’s giving ...
So Apple released iOS5 yesterday, and Apple servers are getting slammed with people trying to download iTunes 10.5 and iOS5. I downloaded and installed iTunes 10.5, plugged in the iPad, and clicked Check For Updates. "You're on 4.2. You're current!" - it says, or something like that. You would think clicking Check For Update over 100 times would have burned the message into my brain. I even downloaded the iOS5 IPSW (link below) and tried to Shift-Click Check For Updates, but I got the pesky 3002 ...
When you are going to join any computer from domain controller the following error will be appeared on your computer screen. Full Error Message v\:* {behavior:url(#default#VML);} o\:* {behavior:url(#default#VML);} w\:* {behavior:url(#default#VML);} .shape {behavior:url(#default#VML);} Normal 0 false false false false EN-US X-NONE X-NONE /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; ...
T'his blog post has moved:http://gruffcode.com/... ...
For more formatted view .. Goto http://ankitagrawal57.blogs... any web application, performance is basic necessity. Earlier internet speed used to be limited thus users got inclined to pages which load within 3-4 secs. But now the internet speed is no more a constraint but still time does remain a constraint. Imagine yourself visiting a website which takes a lot of time (30 – 60 secs) just to load the page. You would not like to go to that site again.To mitigate this issue, developers and ...
So someone moved your Silverlight cheese? Go and get some HTML5 cheese! Before WPF/E & Avalon were anything more than vapourware, W3C had the SVG standard(Scallable Vector Graphics) for 2D vector graphics over the web. Using Javascript, you could manipulate 2D animations & tranforms. You can embed SVG in HTML5 today. Yeah, its like going back to Silverlight 1.0, but you just have to deal with it! Embrace change. SVG Features · Designed for 2D graphics - display vector graphics & text ...
A few weeks ago I ran into an error while setting up our test farm. I was creating the service applications and when I got to PowerPivot, I got the following error: I was able to work around this error by using PowerShell to create the service application. Background First, some details of our installation: two web front ends, two application servers, and one SQL server. All are running Windows Server 2008 R2 x64 with Service Pack1. The SQL Server is 2008 R2 with SP1. The SharePoint servers are SharePoint ...
Our engine is written in almost pure C++ with some part in C# that run on Mono. The code base is huge which mans that we’re primarily looking for platforms that support C++ development. Looking at the current set of platforms on the market this is really not a big issue with Windows Phone being the only platform that does currently not support native development. Sadly this means that we’re currently not planning a Windows Phone release in the near future. Looking at other platforms, about a year ...
In the world of custom web application development a critical component of our success is the hosting environment and services. We can choose to deploy our web applications using 3rd party hosting providers such as GoDaddy.com, Rackspace, DiscountASP.NET, or another provider, or we can choose to deploy to on premise servers either virtual or physical. In either case the web application must be serviced up to consumers by a web server software such as Internet Information Service (IIS), which is included ...