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RRSet of type CNAME with DNS name foo.com. is not permitted at apex in zone bar.com
I own foo.com and bar.com . I am managing both in Route53. foo.com hosts my site, and I'd like to direct traffic from bar.com to foo.com . I tried to set up a CNAME record for bar.com pointing to foo.com , but I got the error message:
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How to turn on line numbers in IDLE?
In the main shell of IDLE, errors always return a line number but the development environment doesn't even have line numbers. Is there anyway to turn on line numbers?
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how do I initialize a float to its max/min value?
How do I hard code an absolute maximum or minimum value for a float or double? I want to search out the max/min of an array by simply iterating through and catching the largest.
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Deleting lines from one file which are in another file
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grep -v -x -f f2 f1 should do the trick.
Explanation:
-v to select non-matching lines
-x to match whole lines only
-f f2 to get patterns from f2
One can instead use grep -F or fgrep to match fixed strings from f2 rather than patterns (in case you want remove the lines in a "what you see if wha...
Coroutine vs Continuation vs Generator
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I'll start with generators, seeing as they're the simplest case. As @zvolkov mentioned, they're functions/objects that can be repeatedly called without returning, but when called will return (yield) a value and then suspend their execution. When they're called again, they will...
START_STICKY and START_NOT_STICKY
...hat is the difference between START_STICKY and START_NOT_STICKY while implementing services in android? Could anyone point out to some standard examples.. ?
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What is the exact meaning of Git Bash?
...Git Bash for the last two days. I know now the basic operations such as commit , push , pull , fetch , and merge . But I still don't know what Git Bash itself actually is!
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How to reliably open a file in the same directory as a Python script
I used to open files that were in the same directory as the currently running Python script by simply using a command like
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Why does direction of index matter in MongoDB?
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MongoDB concatenates the compound key in some way and uses it as the key in a BTree.
When finding single items - The order of the nodes in the tree is irrelevant.
If you are returning a range of nodes - The elements close ...
Views vs Components in Ember.js
I am learning ember.js, and I am trying to understand the difference between a view and a component. I see both as a way of making reusable components.
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