CMG $355-$350 PUT Credit Spread – 37 DTE

BACKGROUND: CMG dropped 10% on earnings miss. Although, you have to respect such a big move (meaning the overall trend should continue to go down. This is the opposite of my NFLX trade below) but I am putting on this trade because, CMG should normalize a little after the extreme market reaction in next 37 days.

PLAN : The goal is wait couple of weeks, burn some theta,  and close the position if we get a decent recovery. I only sold 1 lot. So, if it continues to drop, I will add more to average down my position.

PROFIT TARGET: $100 (I usually stick to 50% of max profit)

Price at time of trade = $367

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Store encrypted AppSettings and ConnectionStrings in a database

Do you have connectionStrings and appSettings with potentially sensitive data spread all over your network in various web.configs?

Do you worry about your database userids and passwords saved in source control?

I set out to solve this problem and created DBConfigurationManager. It is available as a NUGET package : https://www.nuget.org/packages/DBConfigurationManager/

DBConfigurationManager allows you to store your appSettings and ConnectionStrings in a database table. There is nothing you need to do in the code. You continue using

ConfigurationManager.AppSettings[“”] and ConfigurationManager.ConnectionStrings[“”]

When you install the package, it gives you the TABLE script you need to hold the configuration information.

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as well as adds a connectionString to your web.config to point to the configuration datastore.

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It is a great way to centralize your appSettings and ConnectionStrings. If you are worried about security, you could easily use SSPI and connect to the configuration database using the AppPoolIdentity or Service Account you are running your website under.

New in Version 2.0.0.0

  • Ability to encrypt your settings in the database.
  • You can either use MachineKey to encrypt or, a secret key using MD5 encryption.
  • Also, included is a tool (look in your bin folder) called StringEncryptor to create your encrypted settings.

TOOL to encrypt your Settings

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Indexed Mind – Search your Company’s Brainpower!

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Think of it as LinkedIn + Quora for your Company!

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im_search_capture

How to bust/clear DonutCache in asp.net MVC

Let us say you have an asp.net MVC controller/action which is donutcached like below. And you want to bust the cache for some reason. An example would be. You cache a partial view for 24 hours, but give the user a refresh button to allow him to manually refresh it if he wishes to.

NOTE: you cannot use web.config based cacheprofiles for MVC. It just doesn’t work, so DonutCache is being used for that.

[DonutOutputCache(CacheProfile = "CachedAction")]
public ActionResult CachedAction(string id)
{
return View();
}

Here is the web.config

	<caching>
	  <outputCache enableOutputCache="true" />
	  <outputCacheSettings>
		<outputCacheProfiles>
			<add name="CachedAction" duration="14100" varyByParam="*" location="Any" />
		</outputCacheProfiles>
	  </outputCacheSettings>
	</caching>

Normally, in the javascript if you just call $.ajax() and request that action, it will just come back with the cached copy. The trick here is to first bust your server cache. So, you can create another action like so.

public void BustCache(string id)
{	
var Ocm = new OutputCacheManager();
RouteValueDictionary rv = new RouteValueDictionary();

if (!string.IsNullOrEmpty(id))
rv.Add("id", id);
Ocm.RemoveItems("controller", "cachedaction", rv);
}

Finally you would simply make two ajax calls. First, you bust your cache and then you call your regular MVC action to get your content.

$.get('@Url.Action("bustcache", "controller"');
$.get('@Url.Action("cachedaction", "controller")');

IIS Rewrite Rules (force www to non-www and http to https)

  • Redirect www site to non-www. eg. I use the rule below for my own website. If user browses to https://www.indexedmind.com, redirect them to https://indexedmind.com
    <system.webServer>
    <rewrite>
    <rules>
    <rule name=”Redirect WWW to non-WWW” stopProcessing=”true”>
    <match url=”(.*)” />
    <conditions>
    <add input=”{HTTP_HOST}” pattern=”^indexedmind\.com$” negate=”true” />
    </conditions>
    <action type=”Redirect” url=”https://indexedmind.com/{R:1}” />
    </rule>
    </rules>
    </rewrite>
    </system.webServer>
    
  • Redirect http request to https. eg. if user browses to http://indexedmind.com, force them to go to https://indexedmind.com
    <rule name=”Redirect to HTTPS” stopProcessing=”true”>
    <match url=”(.*)”/>
    <conditions>
    <add input=”{HTTPS}” pattern=”^OFF$”/>
    </conditions>
    <action type=”Redirect” url=”https://{HTTP_HOST}{REQUEST_URI}” redirectType=”SeeOther”/>
    </rule>
    

Testing your jquery mobile website in Chrome (Ripple mobile emulator)

If you are developing a Jquery mobile website, Chrome or Firefox serve as a great tool to debug your code and let you play withe the DOM and Javascript on the fly. However, you can never get a real feel of how the site will look/run on a mobile device.

If you are on a Mac, you can obviously use XCode’s IOS simulator which is simply awesome. On Windows you can download Visual Studio Express edition for mobile development and that ships a Windows phone emulator. 

But there is another solution which is best of both worlds. Enter Ripple (download link), a Chrome extension which nice emulates a mobile device. I am in love with it because not only does it let me see how my website will look on a mobile device but it gives me the awesome development power provided by Chrome and its debugging tools. In summary here are the benefits of Ripple

  • View your site in a variety of mobile devices Android, IOS, Windows Phone, Palm etc
  • Use Chrome’s uber powerful tools to do your development
  • Fake GPS/location services. Ripple even lets you simulate as if you are driving around!
  • Test your site on landscape/portrait orientation
  • Simulate accelerometer events.

My personal thanks to the developers of Ripple !

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OSX Lion and Windows 7 on the same box (Vmware, Parallels and Bootcamp compared)

I only have Macs in my house. I just kept throwing the Windows machines as they started to die off without replacing them (Yes, all the HPs and Dells are in the trash now). Although, I do lot of IOS and Ruby on Rails programming which is perfect with OSX Lion, but I only do that as a hobby. At the end of the day I have to remember that my 16 years of expertise as a Microsoft developer is what pays the bills🙂. 

I have tried all 3 options of running Windows on OSX. i.e Parallels Desktop, VMWare and Bootcamp.

Parallels and VMWare seem like the ideal solution at first because you don’t have to reboot your laptop into windows. You click the VMWare or Parallels icon and it fires up the Windows machine in a virtual environment. Sounds great right ? In my experience, it sounds great only in theory. Both solution do work without any problems, but performance is a different ballgame altogether. Running Visual Studio 2010 on the VMs is a pure torture. It is so slow that it is almost unusable. (I have a Macbook Pro, OSX Lion, Core i7 2Ghz with 4 GM ram and I allocated 1.5 – 2GB ram to the VM)

So, I ended up just firing bootcamp and tried to install Windows on the second partition. It did have its challenges but nothing that I couldn’t overcome. Here is what I ran into:

  1. Low disk space – OSX reported I have 350GB free, but Bootcamp kept complaining that I don’t have sufficient space. Weird right? Well, no matter how much Apple makes you believe that OSX doesn’t get fragmented, it actual does. The easiest way to defragment is to backup your machine using Time Machine, format your machine completely (i.e boot with OSX Lion DVD and use disk utility to format your partitions) and restore from Time Machine backup. This is the easiest and free way to defragment your HDD. Once you do this, Bootcamp will be a happy camper and will let you proceed.
  2. Made a mistake of allocating less space to Win 7 – I allocated 50 GB to windows 7 and thought I can install Visual Studio 2010 on it without any issues and it did work great! But then the greedy developer I am, I wanted to install Visual Studio 2012 RC on it too. And that is where I ran out of space. The solution – Reboot into OSX and use disk utility to reduce OSX partition size. Then reboot back into Windows 7 and download this free tool called Minitool Partition Wizard. Fire up the tool, click the Bootcamp partition and then choose extend merge. This will let you extend the partition and use the space you freed up using Disk Utility. (Disk Management built into Win7 will not work)

After all was done, I am loving Bootcamp/Windows 7. It is blazing fast for obvious reasons. Obviously, a virtual VM solution just cannot compare to an OS running on real hardware. I know you are still thinking “But I would hate to reboot my computer every time into Windows!!!!!”. Well, if you fire up the VMware or Parallels VM from a suspended state, you will end up wasting the same amount of time that you would physically booting into Windows 7 too. And when you want to get back to OSX, Lion will be waiting for you with its “remember open programs” feature that I have come to love.