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程序员之网络安全系列（五）：数字证书以及12306的证书问题 - 更多技术 - ...
...通过，但是浏览器的锁还是没有变绿。
为什么呢？ 看提示，是因为12306使用了一个比较弱的机密算法（This site uses a weak security configuration (SHA-1 signatures), so your connection may not be private.），我猜他们是为了性能？？
但是，就算...
How to remove convexity defects in a Sudoku square?
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I am getting error: output[ri*50:(ri+1)*50-1 , ci*50:(ci+1)*50-1] = warp[ri*50:(ri+1)*50-1 , ci*50:(ci+1)*50-1].copy TypeError: long() argument must be a string or a number, not 'builtin_function_or_method'
– use...
Does Java support default parameter values?
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answered Jun 15 '09 at 18:05
Rob HRob H
12.4k88 gold badges3737 silver badges4444 bronze badges
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Trying to SSH into an Amazon Ec2 instance - permission error
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The error message says it all: the .pem cert file is not protected enough. Do chmod 400 xyz.pem as suggested below.
– allprog
Oct 31 '12 at 22:06
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Why would I use a templating engine? jsp include and jstl vs tiles, freemarker, velocity, sitemesh
...g the save-in-editor, reload-in-browser cycle back, along with much better error messages.
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How to make “if not true condition”?
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I think it can be simplified into:
grep sysa /etc/passwd || {
echo "ERROR - The user sysa could not be looked up"
exit 2
}
or in a single command line
$ grep sysa /etc/passwd || { echo "ERROR - The user sysa could not be looked up"; exit 2; }
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Stopping python using ctrl+c
...ry:
#Some stuff might raise an IO exception
except:
#Code that ignores errors
#This is the right way to do things
try:
#Some stuff might raise an IO exception
except Exception:
#This won't catch KeyboardInterrupt
If you can't change the code (or need to kill the program so that your chang...
Tar archiving that takes input from a list of files
...e this: tar -cvf allfiles.tar --exclude='^#' -T mylist.txt. Tar reports an error, but when you check your tar archive, there are no errors, and all files from the list are inside your archive.
– Matt G
Oct 31 '18 at 6:05
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How to find common elements from multiple vectors?
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– Montgomery Clift
Oct 3 '19 at 8:05
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OS X: equivalent of Linux's wget
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edited Sep 3 '17 at 20:05
Mark Amery
98.8k4848 gold badges336336 silver badges379379 bronze badges
an...