From admin to dev [closed] - networking

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Recently a friend of mine had gone from a high level NOC position to a developer. Before that he was just doing the help desk stuff. He has no degree, only the usual MIS/networking certifications and as far as I know only tinkers with code on the weekends. I can see where in some scenarios having a good understanding of configurations, packets, users, OU's, etc would be extremely beneficial to a developer.
My question is this, how many full time developers started off this way? Even how many people dual wield the responsibility of developer/systems administrator/network administration?

I'm sure that this is a fairly common scenario. I've spent 12 years in I.T. and I find that as time goes on, the real income comes from being a specialist (DBA, coder, etc.) as opposed to a generalist (network admin, helpdesk).
It's actually the path that my career is taking. I'm not quite a full-time DBA or developer but that's where I'm heading.
I'm also willing to bet that the people skills I've picked up along the way (helpdesk support, network admin, systems analyst) will help me in my DBA/Developer career. Skills I don't feel I would have gotten had I jumped right in to a coding career.

Indeed. I think developers should know the platform they are building software for. If a dev has worked as sysadmin before, he will know how to integreate his software well. Some Windows-Desktop-App related "integration smells" that come to my mind:
App does not run unter normal-user privileges (run on properly secured enterprise desktops? oops!)
App requires write permissions to all kind of system folders (security? oops!)
App stores user settings in 'nonstandard' locations like %programfiles% (backup? permissions? oops!)
App does not provide silent-installable setups (deployment? oops!)
Etc..
A real sysadmin would never write software that has one of the above integration smells. Really.

It's quite common in small companies. I did that for some time - developing the software we sold to customers, keeping the network going, and adding features to the database as needed for a manufacturing company of fewer than 20 people.
You wear many hats in a small business.
But I started off programming microcontrollers in high school, so I can't claim this is where I started.
It is very helpful to have a working knowledge of all these systems as a developer.
-Adam

The overlap of developers and admins happens quite a bit. Our last admin developed on the side just so he'd have a better understanding of what he was helping support. When he left I became the admin just because I tinkered with admin stuff on the side to know how my software was being supported.
A broad understanding with a few focuses is what I'd say is best for any technical professional. Then with a bit of study you can change to meet whatever need may arise.

I've seen it more the other way where a programmer also "admins" the servers and sometimes network. I've definitely been in that position.
I would think it can easily go the other way as well where an admin can start programming systems, but from my experience it's not as common. Whenever I ask a server admin or network person "do you program too?" most of the time the answer is "no".
I think it might be easier for programmers to cross the line because when you are programming a system unless you always have an admin available you need to be able to set up your own environment and that usually includes setting up a server.

I started off as a NOC operator, eventually working my way up to a senior network engineer position. During the last 2-3 years of my tenure at my previous company, I picked up a fondness for programming and started teaching myself everything I could on my own time. Around 2005, I left said company for a small startup and still work there today as as the admin and primary developer.
The one challenge I impose upon myself is to not make admin changes at the drop of a hat to satisfy programming challenges. I must force myself to code in a way that any application I make can be redeployed elsewhere with minimal privileges, despite the fact that I can do pretty much anything I want with our own servers. It's a fine line between performing both duties well and performing one duty badly due to the needs of the other.

I'm here.
Although I've been tinkering with code since I was a child, my first full-time job was being a system administrator, a DBA and other related roles.
Afterwards I worked full time job as a developer, and now I'm both a developer and a security researcher.
Also, I managed to complete M.Sc in CS.
I believe that such transitions are possible, and very beneficial, as you get a wider view on your field of work.

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How to deal with Wordpress updates and client sites? [closed]

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We're making a lot of websites for multiple clients and we always had some problems figuring out what to do with "Updates". We're starting building Wordpress sites and there's almost a plugin update every week. Since our sites use WPML and Woocommerce, there's a lot of conflicts happening with unreliable WPML updates and other plugin with security flaws (revolution slider in my case).
I've just received an email from my client's hosting and he wants us to make updates from WP 3.8.1 to 4.0 but I know there's an intensive conflict job coming up. I usually use the 'Disable all wordpress updates' plugin to hide 'em all from the wp-admin.
I wish my project had enough budget to build custom sites, but that's not the case here.
I just want to know how Wordpress agency are with that. It doesn't look that professional to tell a client that updates aren't necessary.
First of all, you of course bill them for the time you spend on your clients websites. Better yet, sign some kind of support support agreement where they pay you a monthly fee for having their websites kept up to date and maybe uptime monitoring. You can also include a few hours per customer for support and small development tasks per every month(it's usually nice for the clients to have even if they don't use it every month). This is a nice way to get some steady income and fill the time gaps when you have less to do.
You should also state in the agreement when you build the website that future updates and fixes is NOT included in price. You can give the clients a short period the report errors and bugs in the website and after that you will bill them for any extra time.
Secondly, get the right tools to optimize your time. I recommend ManageWP or InfiniteWP. ManageWP is slight better in my opinion and it is a hosted solution, but has a higher price if you have many clients(per client pricing model). InfiniteWP is a free self hosted solution(you set it up on your own server), where you only have to pay for the modules you use. You will need a few modules to get the functionality you need, but it's still much cheaper than ManageWP if you have many clients.
For uptime monitoring I recommend Uptime robot(simple and free for up to 30 websites) or Pingdom a better service with a lot of nice tools, for example performance monitoring, but also a much steeper price.

What is the best way to get up to speed on BizTalk? [closed]

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How should an experienced .NET & SQL developer go about becoming a BizTalk expert for a project starting in 1 month? How should I spend my limited time to gain some practical skill & knowledge in BizTalk so I can "walk the talk"?
I am self employed, and would not be willing to spend more than USD300. I have the book "Professional BizTalk Server 2006" by Wrox, but have not found it to be a particularly good learning resource (very dry, needs more real world examples).
The BizTalk Virtual Labs in MSDN are a pretty good place to start with. Pluralsight also has several good BizTalk courses, and their online subscription isn't too expensive; would likely be a good option.
I agree with everything written this far. All solid info.
I have a few addons, coming from a fellow freelancer working with BizTalk since 2002:
Unit testing.
It's not easy to do, but check out BizUnit. A Codeplex based toolset written and maintained by Kevin Smith. One of the early BizTalk heroes :-) http://bizunit.codeplex.com/
Deployment / getting things into production
But also keep in mind that none of the day to day development stuff will prepare you for the part of the project where you have to deploy the app and make sure that it is "manageable" by operations. This can be quite complex, and is a topic in it's own right.
Check out Apress Pro BizTalk 2009, it's got a decent (IMO) chapter on this.
The entire development process around BizTalk.
The first two chapters of the same book will give you a good impression on what a BizTalk project is about. Where to use it, and where to not use it, how to organize projects, and name your stuff. Really a good collection of info that you would only get by reading 5-6 years of blogs back in time :-)
And one last thing. Depending on the roles on the project, you might be asked to optimize and tune BizTalk. And if they don't ask you. Make sure that you ask if others have done that, because you have to do it. BizTalk should always be tuned towards what it is supposed to do. Low latency vs high throughput, tuned according to hardware, correct setup and config of network around the SQL boxes, etc etc etc. This can be hairy stuff, and you should be careful not to jump into it before reading up on it all. But it's a subject we as freelancers are often expected to be able to deal with ... so thought I might bring it up.
Example ... BizTalk x64 processes on an x64 box runs really bad out of the box, actually worse than on the x86 processes. The 64 bit processes need to be tuned to really use all the MEM that are availble to them.
Anyways ... a bag of mixed tips and I hope you can use some of them! And good luck! It can be a tough start, but if used right, BizTalk can be a great product/toolset.
And remember .... if it is ugly, or hard, or both. You are doing it wrong. And don't be afraid to dive into .net code, and bolt it onto the BizTalk box. We all do it ... some just won't admit to it :-D
Start with the advice of tomasr.
Then, try and build something as real as possible. Biztalk is the kind of product where everything seems fine when you read the book and follow the examples, then you sit down to do something and you are thinking "what do I do now".
As per Thomas and Shiraz - set up an environment and get your hands dirty. If you haven't done so already, download and install BizTalk Server 2010 Developer Edition
But just to temper your expectation, IMHO expertise in BizTalk (or any other EAI / BPM / ESB product) can take years to accumulate.
It isn't clear whether you are developing for a client with an established BizTalk installation, or if this is the client's first BizTalk deployment. If so, one thing not to be underestimated is that the operational considerations of running a production BizTalk environment (performance, redundancy, reliability, auditing, tracking, monitoring with SCOM etc) are as complex as the development and testing - but understanding of this will be important to 'walk the talk'.
W.r.t. dev, start with some a simple EAI type mapping project, and then work your way through the SDK samples progress to some common messaging patterns (e.g. batching with aggregator), and then move into the BPM type orchestrations. You can probably leave BAM and the BRE for later.
Good luck!
+1 to tomasr for mentioning the virtual labs. Getting hands-on is definitely the way to go, as Shiraz Bhaiji also mentions. Hopefully you're not starting with BizTalk 2006, and can go with the latest: 2010. If that's the case, you can get the Developer Ed. of BizTalk 2010 for free now (see link from nonnb).
I'd also recommend Richard Seroter's book: 'SOA Patterns with BizTalk Server 2009' (available on Amazon.com). There are many ways to do the "wrong" things with BizTalk, and this book does an excellent job of walking through both the how and the why of building BizTalk solutions (with the code samples available from the publisher's site). And yes, it pretty much takes a whole book to go through it all. It's a good (more readable) companion to the Pro BizTalk 20xx series (which is generally better for very specific questions/tasks).

When to choose LAMP over ASP.NET?

A friend wants to start a dating website, she wants me to help her. We still haven't discussed on what platform it'll be developed, but I'm thinking she'll suggest LAMP to save a buck (which is one reason already to chose over ASP.NET already). If the dating website does well, it'll potentially hold a large amount of data (I'm not sure if this would be another reason to consider either ASP.NET or LAMP).
Anyway, I ask this from an ASP.NET developer point of view. I have very little, almost null experience with LAMP, and I don't like it very much either, so if she decides to go with PHP odds are I won't help her. So what would be some good points to bring up when deciding which platform to develop on?
Please be objective, I don't want this to be argumentative or anything, try to stick to facts, not opinions alone.
Thanks!
What generally matter in that kind of choice is :
How much time will it require ?
How much money will it cost
Which is often linked to the time ^^
If you have a lot of experience with .NET and none with Linux/Apache/PHP/MySQL, choosing LAMP will mean that you'll need much more time : a whole lot of new stuff to learn.
It'll also mean that your code will probably not be as good as it would be with what you know.
After, the question is : do a couple of week "cost" more than a few licences ?
Only you and her can decide, there ;-)
If LAMP makes you queasy, you can try ASP.NET over Mono.
IMO the only good reason to move away from a programming environment that you are already experienced with is the one you already mentioned: cost.
You would use LAMP specifically to build appliances. If you're not building appliances, the software cost for ONE server is marginal, and is not worth the tradeoff for moving to a totally different development environment, IMO.
I think the first question is: Which is the target programming language and environment that you have experience with?
Imagine the site will become a success - how do you scale then? LAMP can scale, and so can WISC, but in both scenarios you need people who actually know the environment and who can secure it. If you don't know Linux and MySQL and PHP, how are you going to scale and secure it?
So even though LAMP may be significantly cheaper (The SQL Server license is the heavy part in the WISC stack), after the first hacker attack or downtime, that initial savings may seem marginal compared to the damage.
The other thing is of course the PHP vs. ASP.net/C# decision. If you don't know PHP, then it's a decision of "Not having the application at all" and "Having the application on an expensive stack", unless your partner of course decides to hire someone else to develop that.
Technically, both have their pros and cons, but there are huge websites built on both stacks, so it really boils down to "Which platform can you reliably/comfortably setup and maintain?"
I agree with Pascal. Go with what you feel comfortable with in completing the project and don't forget that YOUR TIME EQUALS MONEY. You have to put a $$ value on your time. LAMP may be cheaper up front but if it winds up taking 1000 extra manhours, then suddenly it's more expensive.
Also take into account the lost opportunity cost in not being able to bring something to market b/c you chose a technology you were not familiar with.
At the end, if the plans are for this to be a business that is successful, the cost of using ASP.NET should be negligible or else I would question the seriousness of the effort.
One argument for the Apache/MySQL/PHP stack is that it's available on most major platforms (Windows/Linux/Mac/BSD/...) and most webhosters provide it as well.
You also find many (as in "huge amounts") of good tutorials, books and other educational stuff about PHP/MySQL.
Apart from that all tools used in the LAMP stack are free (as in "free speech" and also as in "free beer"). ASP.NET is still a proprietary technology owned by Microsoft. I'm not a huge open source fan, but knowing that your tools will remain free to use in any way you want is quite nice.
Of course, if you have no experience with PHP at all and much exp. with ASP.NET it's easier for you to stick with ASP.
If your comfortable with Microsoft products there's nothing to stop you from developing code in .NET and using a free database (however you may need to find/develop a custom database adapter if you are not using free versions of SQL server or Oracle). If you are generating a lot of traffic you can swap out the data layer of your code and invest in a better performing database.
Time costs money and if you can develop a better product both from a user and maintenance/performance perspective it will serve you better in the long run.
Some hosting companies include the OS and flexible contracts so I would make fit from your prespective. The market's pretty competitve for that type of site and there's no point throwing a lot of money at it until you get some useful metrics for your site IMO.
The short answer is: it doesn't matter, unless the site is going to do something so amazingly different that one technology is obviously better suited. And I can't think of anything like that off the top of my head.
A big red flag is: if your friend is concerned about the extra $5/month for asp.net hosting instead of LAMP hosting, then you're probably not going to get paid. Ever.
Caveats aside, be realistic: what is the immediate goal? To get something working, or to design something on the scale of plentyoffish.com or facebook.com? [Facebook.com has about 44,000 servers at the moment]
So, what are the chances of your friend's dating web site exploding to the size where scaling is a concern? For most sites, the answer is "very close to zero" - because of the marketing effort required to drive that much traffic.
Now, what is the revenue stream? Is there any expectation that you will get paid to do this? Do you think the site will be profitable? Is the project fully funded?
Friendship is great, but don't let that keep you from asking the appropriate business and client-relationship questions. One sure way to ruin a friendship is to do some work for free and/or without thinking through the full extent of the project. Far too often, you think it is a one-time favor, while they think it is your job!
LAMP is only cheaper until you read the fine print. It's not better or worse technically, just different.
The WebsiteSpark/BizSpark programs will get you all the Microsoft software you need to get started, free for three years. If price is her driving concern, point her to those programs if she's willing to consider the ASP.NET platform.
Hosting will cost a fair amount either way, because for a full-service website you don't want to go shared. You'll need at least one dedicated server to support a dating site. The OS and database will be free either way if you go with one of the *Spark programs I mentioned.
As a small startup company you can get a free 3-year MSDN subscription (well, you have to pay $100 at the end of the 3 years). If you think .Net will be more efficient and this website will make money, seriously consider BizSpark.
Since you are looking for dating site, check out Markus Frind of plentyoffish.com he is running the largest dating site on .net platform with asp.net and sql.

Who is responsible to look into client reported issues [closed]

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In our organisation we deliver products to different product lines depending on the requirements. in short the same application is customised according to customer requirements and delivered. After deploying the application sometimes we got some issues logged by client.
My question comes here. who is responsible to look into the issues and solve it
Programmers
Testers
Management is asking Testers to have a look into the issues and solve them. But the testers don't have the chance to look into the code. is it feasible to ask the testers to go for the issue resolution and end up wasting time doing nothing thus delaying the solution to the customers.
I would normally expect management to look through the issues every so often (say, every week), and allocate depending on schedules, severity, forthcoming releases etc. Some questions are:
is it an issue a bug, a feature request etc.?
does it prevent your client from working with your tool ?
is it impacted by forthcoming work (e.g. will a new feature remove the feature causing the issue) ?
I don't believe you can resolve these issues in isolation. It requires project managers etc. with awareness of project direction and programmers with awareness of the codebase to work together to determine how/when issues should be addressed, and their impact on other work streams.
Initially you should have a support department that does triage on all newly added issues. They should be empowered and informed enough to decide whether this is a non-issue, whether there's a work-around or whether they don't know. If it's the latter then it should be elevated to programmers.
You might also want to include the testers in the chain if the support guys are unable to produce an adequate 'how to reproduce the problem' document for the programmers.
The way it works at our company is that the testers are asked to verify the client's issue, i.e. trying to reproduce it and document the steps taken to reproduce it. Then it gets logged as an official bug and assigned to a developer who can retake the tester's steps and hopefully fix the bug.
Testers can identify an issue. How can they resolve the same? Only the developer will be able to do it. Looks really strange where a tester is asked to resolve the issue.
Who deals with the clients? Liasing with clients is not a task normally associated with the technical staff.
You should have someone whose role it is to speak to the customers, find out exactly what the issue is and how the client would like it resolved so that it may be passed onto the most relevant person to address the issue.
I would say the logical way to do it is:
Testers should try to reproduce the problem and identify its source
Report the problem with steps to reproduce it to the programmers
It's not common usage to let testers solve the issues as the programmers won't get the feedback they need to avoid the issues in the future.
Testers - verify that the problem exists.
Programmers - solve the problem.
In between there is another part to this, which is "gather information about the problem". Usually this is a split between testers and programmers; exactly how balanced that load is depends on the team.
If you don't have the code, you can't fix bugs. It's as simple as that. At the very most you could fix configuration errors, but if the misconfiguration was caused by the program that's a short-term fix.

Cost of using ASP.NET [closed]

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One thing that I keep hearing in reference to ASP.NET and MSFT technologies is that they cost money to use. Often when they are being compared to open source languages someone will mention that one factor in favor of open source is that it's free (to an extent). My question is, when does ASP.NET actually cost money to use in terms of using the proprietary technology?
Understandably there are the hosting fees, but I'm curious about the fees outside of these hosting fees. I'm especially curious about this as it relates one-person smaller-site development (non-team/large enterprise). Any help is appreciated.
(edits)
Some excellent answers. Much appreciated
The projects that I'm looking to use the technologies for would be personal sites and very small business sites (1 or 2). The intent would of course be that these projects get much bigger. It seems that for commercial production, fees will apply. What about just basic dynamic "shared hosting" sites that provide information?
You have to measure many things when you determine cost. We recently went through an evaluation of platform choice by an outside vendor, and the recommendation is that we stay with a Microsoft.NET platform. Why? For us, the reason is that once you get to an enterprise-level product suite, the difference is not as big as people would like you to believe.
Purchasing Microsoft products is a sound choice. The initial cost might seem high, but keep in mind if you get Software Assurance on your purchase (Visual Studio, for example) you are entitled to free upgrades as long as you keep you SA current - and it is at a fraction of the cost of a repurchase. Many people think you need to buy the full retail version every time, and that is just not true. Work with a larger vendor, like CDW, to help with licensing questions. They got someone from Microsoft's Licensing Division on the phone with us and helped us choose what was right. Not high-pressured at all. They actually talked us down on some of the things we thought we needed.
MSDN subscriptions are great. I have one through my employer, but also used to maintain one personally. If you are a contractor/self-employed, it is an operational expense. Like buying full products, renewing a MSDN subscription is very inexpensive compared to a purchase, and especially considering what you get. The licensing within MSDN is rather generous, and since you are a one-person shop, if I read that correctly, one MSDN is more than enough for your non-production needs. Plus, the bundled Support Incidents are a nice plus, as well.
There are many versions of Visual Studio, from the Express Editions all the way up to the Team Editions. For example, we are rolling out Team Foundation Server right now, so our costs are obviously higher. For a startup or small shop, there are TFS hosting partners and you can get Team Explorer for free. Or you can mix and match, using Visual Studio for development and something like VSS, SVN, or countless other version control products out there.
Just because someone "goes open source", that does not mean that it is free. Yes, the platform choice might be free, and the tools might be free, but there is a definite chance that you will need a commercial library or component some day. Plus, nothing prevents you from going with Open Source products with Microsoft, either. There are many open source projects written in .NET that can be leveraged with your solutions, and Microsoft is becoming a lot more transparent. We are working on a very large, enterprise solution right now and we are using only one "commercial" product, outside of our development tooling. There is a lot of Open Source usage, and a lot of implementations cobbled from community musings and examples.
The one thing that often goes unmentioned is the human cost that goes into these decisions. Microsoft is hated by many and their solutions might not be the fastest or most robust (although I will take IIS7 on W2K8 over any other web server configuration any day) they are focusing on making people more productive at what they can do. You aren't just buying products with them, you are actually buying productivity. As someone who has worked in a few Open Source shops, I am very appreciative of all the things that they have gotten right and understand that free does not always mean better.
I have a "one-person" side business and I really recommend looking into an MSDN subscription. It will give you access to tools and technologies that you would not otherwise be able to get your hands on without going a la carte in a retail route. Talk with someone, like a CDW, to help you figure out your licensing needs. If it works out, definitely try that route. You can cover all your in-house needs in a one person shop with an MSDN subscription, most likely (for example, a lot of the products are available to install to you (as a user) up to ten times as long as the machines that they are installed on are "yours" and non-production. There are exceptions to that, but not many.)
If that does not work, try the free route. You can definitely use Mono for .NET Development, as well as the Express Editions. I know a few C# developers who swear by Mono and could not be happier.
Best of luck to you!
Often when they are being compared to open source languages someone will mention that one factor in favor of open source is that it's free (to an extent). My question is, when does ASP.NET actually cost money to use in terms of using the proprietary technology?
Usually when people refer to "cost" in the way you described, they're implicitly referring to TCO, or total cost of ownership. The cost is not an explicit cost in that you've paid for something directly, but rather the long-term price of using something over its lifetime.
For example, even if a particular proprietary technology is free, it may be more difficult to hire and find people who know about it to work on your project. Consequently, if it is less popular than some open-source equivalent, you may wind up paying more for the same amount of labor because appropriately talented staff will be harder to find and in higher demand.
Conversely, if an open-source product is free but has low mindshare or performs poorly, it may well be worth it to pay for an expensive, closed-source proprietary solution rather than having to learn the idiosyncracies of the open-source version.
Naturally, there is some controversy surrounding just how to measure TCO, with both camps having some valid points.
.NET is free
C# compilers are free
Certain versions of Visual Studio are free, and you don't actually need it to write for .NET anyway (though it really, really helps!)
There are many free online resources for learning .NET, such as http://asp.net
In short, there's no real cost to using ASP.NET other than the hosting fee of the website or options you might buy to make things easier (better versions of Visual Studio.)
There's more of an ideological divide, with open source guys on one side being pretty anti-microsoft and so claiming it's high cost to use. I wouldn't worry about them. ;)
There are a couple of good answers already, but I'd like to add "it depends".
joseph.ferris obviously works in a large organization, where the cost of switching platforms is going to be very, very expensive, so the cost of paying the licensing costs is much less that the cost of switching. Take a look at Jonathan Schwartz's blog entry for Mar. 11, especially the section titled "When Free is too Expensive" for another reason to go with fully-supported infrastructure.
But consider a couple of other scenarios.
First, there's the hobbyist, which is what you seem to be addressing - you want to play around with the technology, and maybe put up a website or three. There aren't any issues with privacy or scalability, so you can deploy your application on an inexpensive shared hosting solution. In this case, costs are pretty much irrelevant - whatever platform you pick, you can get free tools to get you started. Remember kids, the first hit is always free.
For a startup, things are a bit different. If the goal is to build a large website, the potential licensing costs can be daunting - it's probably going to a lot cheaper to go with open source. In addition to the production environment, you need to pay for development environments, testing, etc. Even for a small company, licenses may be more than they have in the budget - a single Windows 2003 server Enterprise license lists for $4k. If you're trying to break into a competitive environment and compete on price, this alone may make you uncompetitive. I have seen situations where a Windows-based solution (server, database, and custom development coupled with a content management system) is two or three times the price of an open source solution.
I know that it has been answered, but I will put my 2 cents. Why are you wondering about the cost of ASP.net? In my opinion, the choice of technology in your case (1-2 ppl development freelancer team) should be governed by technology familiarity. If you are an ASP.net expert, the expense of buying the products and MSDN subscription is well-worth it, because it's your primary language of choice that you know well, hence the projects that you implement, will be done better and faster, so it makes sense to stay with it.
However, if you happen to know another technology just as well and you are comfortable that you can deliver a robust product on-time with it, it may be worth it to go low cost. As a contractor, the main objective is to not lose time/money hence you pick a technology that balances your expenses and time spent learning it. In other words, if you are a Java expert, there is no point of paying for asp.net. If you know asp,net well already, then sure, stay with it.
The clients rarely care whether you used Ruby, PHP, Python, Java or ASP.net. They care about time lines, their cost and quality.
I find that it does not cost much money to use. It does infact cost a pretty penny to get windows based hosting. Visual studio is also expensive. After those, though, not many expenses are encountered.
If you want to use the more professional versions of Visual Studio to develop your applications: you will need to pay for that.
Also, there are a lot of commercial components available on the market. These will save you time or improve your product, but at a cost.
For open source, there are also a lot of components, but in this scene most is free/open.

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