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Allow user to set up an SSH tunnel, but nothing else

... Does restricting port forwarding with permitopen also lock down the kind of tunnel device forwarding that ssh -w asks for? – flabdablet May 29 '14 at 19:20 ...
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Why would $_FILES be empty when uploading files to PHP?

...ttribute of the <input> tag Try uploading very small files to narrow down whether it's a file-size issue. Check your available disk space. Although very rare, it is mentioned in this PHP Manual page comment: If the $_FILES array suddenly goes mysteriously empty, even though your form seems...
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Do you need to dispose of objects and set them to null?

...etime, the balloon continues to exist, until the GC "pops" it. Continuing down the balloon analogy, it would seem logical that once the balloon has no strings attached to it, it can be destroyed. In fact this is exactly how reference counted objects work in non-managed languages. Except this approa...
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How to sum up elements of a C++ vector?

...easurably faster on current Intel x86 CPUs. Also, counting a loop-counter down to zero can save the compiler an instruction in the asm, which can be significant if it doesn't unroll the loop. Prefetching sometimes works slightly better when looping forwards, though, so in general it's not better t...
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How do I disable the security certificate check in Python requests

... SSL certificate if you set verify to False. >>> requests.get('https://kennethreitz.com', verify=False) <Response [200]> If you're using a third-party module and want to disable the checks, here's a context manager that monkey patches requests and changes it so that verify=False...
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Displaying files (e.g. images) stored in Google Drive on a website

... is to get the fileId with Google Drive SDK API and then using this Url: https://drive.google.com/uc?export=view&id={fileId} That will be a permanent link to your file in Google Drive (image or anything else). Note: this link seems to be subject to quotas. So not ideal for public/massive sh...
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Is there a practical use for weak references? [duplicate]

...t the garbage collector needs to reclaim space, it can do so safely. The downside is of course that the cleanup policy of the garbage collector is tuned to meet the goals of the whole system, not your specific cache problem. If the GC policy and your desired cache policy are sufficiently aligned t...
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Why am I getting a “401 Unauthorized” error in Maven?

...Version = true [DEBUG] (f) updateReleaseInfo = false [DEBUG] (f) url = https://nexus.url.blah.com/... [DEBUG] (f) version = 13.1 [DEBUG] -- end configuration -- In this case it uses the default value "remote-repository", which means that something went wrong. Apparently I have specified -Dr...
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live output from subprocess command

...rent process, your Python program simply needs to use write() to send data down the pipe. You can do this yourself, e.g.: proc = subprocess.Popen(cmd, stdin=subprocess.PIPE) proc.stdin.write('here, have some data\n') # etc or you can pass the stdin data to proc.communicate(), which then does the...
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Using the “final” modifier whenever applicable in Java [closed]

... it... Adding final to all things which should not change simply narrows down the possibilities that you (or the next programmer, working on your code) will misinterpret or misuse the thought process which resulted in your code. At least it should ring some bells when they now want to change your ...