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Trying to SSH into an Amazon Ec2 instance - permission error

...have a user ubuntu Amazon's AMI is ec2-user most Debian images have either root or admin To login, you need to adjust your ssh command: ssh -l USERNAME_HERE -i .ssh/yourkey.pem public-ec2-host HTH share | ...
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What is Lazy Loading?

...ign of your object model too. (using aggregates and only loading aggregate roots like in domain driven design is a way to get around this without using lazy loading). Lazy loading can result in the or mapper doing lots of small database accesses instead of retrieving all the data you need once. Thi...
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What is the smallest possible valid PDF?

...00010 00000 n 0000000053 00000 n 0000000102 00000 n trailer<</Size 4/Root 1 0 R>> startxref 149 %EOF which is 291 bytes of PDF joy. Acrobat opens it, but it complains somewhat. There is one page in it and it is 3/72" square, the minimum allowed by the spec. However, Acrobat X doesn'...
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Why is using 'eval' a bad practice?

...amentally mis-designed is fundamentally mis-designed. eval is no more the root cause of bad design than division by zero or attempting to import a module which is known not to exist. eval isn't insecure. Applications are insecure. – S.Lott Dec 2 '09 at 17:38...
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SQL Server Installation - What is the Installation Media Folder?

...vices_x64.exe") Navigate to the "options" tab Copy the "Installation Media Root Directory" (should look something like the below snipping) Paste it into the open "Browse for SQL server Installation Media" window Save yourself the hastle of renaming and unzipping etc.! ...
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How to create a directory if it doesn't exist using Node.js?

...ages native ES Modules (with flag enabled and .mjs extension), handles non-root paths, and accounts for full pathnames: import fs from 'fs'; import path from 'path'; createDirectories(pathname) { const __dirname = path.resolve(); pathname = pathname.replace(/^\.*\/|\/?[^\/]+\.[a-z]+|\/$/g, '...
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How do I escape a percentage sign in T-SQL?

... In MySQL, WHERE column_name LIKE '%|%%' ESCAPE '|' share | improve this answer | follow ...
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What is the PostgreSQL equivalent for ISNULL()

... I suspect these commenters are MySQL users who didn't realize the question starts with, "In MS SQL Server, ..." MySQL has an ISNULL() function that takes a single argument and returns 0 or 1. T-SQL's version takes two arguments and behaves like COALESCE ...
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Difference between “read commited” and “repeatable read”

...able read simply reads a "snapshot" not the actual data. From the docs dev.mysql.com/doc/refman/5.0/en/…: "All consistent reads within the same transaction read the snapshot established by the first read." – Derek Litz Jan 17 '13 at 16:40 ...
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Can't choose class as main class in IntelliJ

...swer in the link associated with the "Java class located out of the source root." Configure your source and test roots and it should work. https://www.jetbrains.com/idea/webhelp/configuring-content-roots.html Since you stated that these are tests you should probably go with them marked as Test Sou...