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EC2 instance has no public DNS
...as not the one who set it up. Some of the instances show a public dns name and others have a blank public DNS. I want to be able to connect to the instances that have a blank public DNS. I have not been able to figure out why these show up as blank.
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commands not found on zsh
I am using the z Shell ( zsh ) instead of the default bash, and something wrong happen so that all commands who used to work are no longer recognized:
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What's the role of GetHashCode in the IEqualityComparer in .NET?
I'm trying to understand the role of the GetHashCode method of the interface IEqualityComparer.
3 Answers
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Why use make over a shell script?
Make seems to me simply a shell script with slightly easier handling of command line arguments.
5 Answers
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What will happen if I modify a Python script while it's running?
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Nothing, because Python precompiles your script into a PYC file and launches that.
However, if some kind of exception occurs, you may get a slightly misleading explanation, because line X may have different code than before you started the script.
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How to make HTML Text unselectable [duplicate]
I would like to add text to my webpage as a label and make it unselectable.
4 Answers
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How to change webservice url endpoint?
.... where to reach the web service), not the client endpoint (I don't understand what this could be). To change the service endpoint, you basically have two options.
Use the Binding Provider to set the endpoint URL
The first option is to change the BindingProvider.ENDPOINT_ADDRESS_PROPERTY property ...
How to send an email using PHP?
I am using PHP on a website and I want to add emailing functionality.
14 Answers
14
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Database design for a survey [closed]
...estions. For example: text fields for comments, multiple choice questions, and possibly questions that could contain more than one answer (i.e. check all that apply).
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Immutable vs Unmodifiable collection
... anymore. It just makes sure that the collection itself cannot be altered (and not by wrapping, but by copying). The objects which are present in the collection can still be altered, and no guarantee is given on those.
– Hiery Nomus
Jan 17 '12 at 9:44
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