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How to test an Internet connection with bash?
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Ping your default gateway:
#!/bin/bash
ping -q -w 1 -c 1 `ip r | grep default | cut -d ' ' -f 3` > /dev/null && echo ok || echo error
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How can I start an interactive console for Perl?
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I wrote a script I call "psh":
#! /usr/bin/perl
while (<>) {
chomp;
my $result = eval;
print "$_ = $result\n";
}
Whatever you type in, it evaluates in Perl:
> gmtime(2**30)
gmtime(2**30) = Sat Jan 10 13:37:04 2004
>...
SPA best practices for authentication and session management
...ent-side. Before we do that, though, there's an important prelude:
Javascript Crypto is Hopeless
Matasano's article on this is famous, but the lessons contained therein are pretty important:
https://www.nccgroup.trust/us/about-us/newsroom-and-events/blog/2011/august/javascript-cryptography-consid...
Force unmount of NFS-mounted directory [closed]
...ing (including lsof). I caused the problem by breaking out of a backup script that I'm writing. The script mounts and unmounts the directory, but something about breaking out of rsync messed up my mount. I didn't know about the lazy unmount. It may have been the NAS device causing all the troubl...
How to get current page URL in MVC 3
...ilding. It has some FBXML tags that are interpreted by the facebook javascript that is referenced on the page.
9 Answers
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Using capistrano to deploy from different git branches
... option '-s' (--set) stands for 'Set a variable after the recipes are loaded.' and option 'S' (--set-before) stands for 'Set a variable before the recipes are loaded.'
– Ramon Caldeira
Jul 30 '14 at 16:05
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Amazon S3 - HTTPS/SSL - Is it possible? [closed]
...dFront made this change by allowing you to choose between SNI or Dedicated IP SSL. Dedicated IP SSL continues to cost $600, but SNI SSL is free. Just make sure the browsers you're targeting support SNI.
– Ryan Pendleton
Jun 21 '15 at 21:57
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Best TCP port number range for internal applications [closed]
...to use any port because your clients should be configurable to talk to any IP address and port!
If they're not, then they haven't been done very well. Go back and do them properly :-)
In other words, run the server at IP address X and port Y then configure clients with that information. Then, if y...
Max retries exceeded with URL in requests
...server refuses your connection (you're sending too many requests from same ip address in short period of time)
Max retries exceeded with url: /in/app/adobe-reader/id469337564?mt=8
error trace is misleading it should be something like "No connection could be made because the target machine act...
Can't start site in IIS (use by another process)
...rs)
2) if port 80 is not used, the second cause is potentially an invalid ip address in the ListenOnlyList filed in the registry key of HTTP->Parameters. If you follow the link to set the key manually or in fact you can use (xp and server 2003) httpcfg delete iplisten -i ipaddress to delete the ...