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Change key pair for ec2 instance
...f:
/home/ec2-user/.ssh/authorized_keys
/home/ubuntu/.ssh/authorized_keys
/root/.ssh/authorized_keys
After editing an authorized_keys file, always use a different terminal to confirm that you are able to ssh in to the instance before you disconnect from the session you are using to edit the file. ...
Autoincrement VersionCode with gradle extra properties
...')) {
output.outputFile = new File(getProject().getRootDir(), "${fileNaming}-${versionMajor}.${versionMinor}.${versionPatch}-${outputFile.name}")
}
}
}
}
} else {
throw new GradleException("Could not read ve...
What is the difference between synchronous and asynchronous programming (in node.js)
...f the sql driver you use. The driver should spawn a new thread, connect to mysql and run the query. Once done, post the result to the event queue, and Node will call the callback.
– Salvatorelab
Oct 21 '13 at 7:36
...
JPA EntityManager: Why use persist() over merge()?
...ttached, entityToSave);
return attached;
}
Although if connected to MySQL merge() could be as efficient as persist() using a call to INSERT with ON DUPLICATE KEY UPDATE option, JPA is a very high level programming and you can't assume this is going to be the case everywhere.
...
How to link Docker services across hosts?
...is taken from the blog post:
$ docker run -d -P -e constraint:storage=ssd mysql
One of the supported constraints is "node" that allows you pin a container to a specific hostname. The swarm also resolves links across nodes.
In my testing I got the impression that Swarm doesn't yet work with volum...
Quicksort vs heapsort
...y left child has a value greater than its sibling;
Recursively extract the root of the heap, sift down the lacune left by the root until it reaches a leaf of the heap, then fill the lacune with an appropriate element took from the other part of the array;
Recur over the remaining non-ordered part of...
Detect iPad Mini in HTML5
...a width of 1 inch, then get the width in pixels. That should resolve your root problem.
– JohnLBevan
Nov 14 '12 at 13:28
...
Are PHP short tags acceptable to use?
...not use any of the other features that might not be supported on a server? MYSQL vs MYSQLI? You will waste your time little by little, again and again writing long tags just to avoid a tiny chance of spending a little time to change to a better host.
– Dean Or
...
How do I add files without dots in them (all extension-less files) to the gitignore file?
...n Git 1.7.1 while it worked fine in 1.9.0. In my case adding a file in the root directory worked fine, but adding a file with an extension inside a subdirectory was shown as ignored. This seems to be because 1.7.1 didn't support the ** pattern yet, see here!
– mxmlnkn
...
Path of assets in CSS files in Symfony 2
...source: .
# type: assetic
Specify the URL as absolute from the web root. For example, background-image: url("/bundles/core/dynatree/skins/skin/vline.gif"); Note: our vhost web root is pointing on web/.
No usage of cssrewrite filter
...