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Difference between getAttribute() and getParameter()

...text initial parameters which are string parameters that are configured in web.xml and exist on the server. An attribute is a server variable that exists within a specified scope i.e.: application, available for the life of the entire application session, available for the life of the session req...
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how to find host name from IP with out login to the host

... nmblookup worked great, I wasn't trying to find hostname of a web server, but computers that were doing things they shouldn't. This exposed not just the Windows Hostname, but the Mac address, which was next on my list! – FreeSoftwareServers Dec 15 ...
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How can I check if an element exists in the visible DOM?

... This is indeed the best answer: - it's a web standard - it's very well supported (somewhat surprisingly it doesn't appear in Firefox until version 9, I'm guessing because it was a non-standard function invented in IE that wasn't standardized until later) - it must b...
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Git push results in “Authentication Failed”

... On a Mac, after answering the web capcha, this worked for me: git config --global credential.helper osxkeychain – Robin Macharg Feb 6 '19 at 13:38 ...
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Node.js app can't run on port 80 even though there's no other process blocking the port

... This should be the accepted solution. Running the web server as sudo is dangerous, potentially giving an attacker root access if there is any vulnerability in the application; also, if the application were to create any files, they'd be inaccesible for other users, making yo...
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Custom exception type

... From WebReference: throw { name: "System Error", level: "Show Stopper", message: "Error detected. Please contact the system administrator.", htmlMessage: "Error detected. Please contact the <a href...
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rsync error: failed to set times on “/foo/bar”: Operation not permitted

...tting a confusing error from rsync and the initial things I'm finding from web searches (as well as all the usual chmod'ing) are not solving it: ...
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Font Awesome not working, icons showing as squares

...@font-face { font-family: 'FontAwesome'; src: url('../font/fontawesome-webfont.eot?v=3.2.1'); src: url('../font/fontawesome-webfont.eot?#iefix&v=3.2.1') – Braulio Sep 16 '13 at 10:29 ...
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Calculate size of Object in Java [duplicate]

...ust be something not quite right with this approach when trying to find my web session size: it reports 40, while ObjectGraphMeasurer (github.com/DimitrisAndreou/memory-measurer) reports "Footprint{Objects=34, References=52, Primitives=[float, int x 19, char x 257, long x 2, byte x 68557]}". ObjectG...
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http HEAD vs GET performance

I am setting-up a REST web service that just need to answer YES or NO, as fast as possible. 8 Answers ...