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Where do you store your salt strings?
...lted-hash of the password. The application is aware of this design so can fetch this data, and obtain the salt and salted-password hash.
My rationale for this approach:
If the password/hash data is compromised and falls into the hands of an attacker, the attacker will not know what the salt is fro...
nginx启用gzip压缩，大大降低网站流量 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...http_version 1.0;
2、nginx配置中加载 gzip 配置：
include /etc/nginx/sites-available/gzip.conf;
3、重载nginx：
nginx -s reload
4、验证：
1）nginx的response headers中的 Content-Encoding 是 gzip。
2）返回文件大小明显被压缩。
参考：https://www.cn...
What can you use Python generator functions for?
...an iterate like this:
db = MySQLdb.connect(host="localhost", user="root", passwd="root", db="domains")
cursor = db.cursor()
cursor.execute("SELECT domain FROM domains")
for result in ResultGenerator(cursor):
doSomethingWith(result)
db.close()
...
Google Tag Manager 入门指南 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...有多台服务器，频繁的修改，会涉及到版本发布和部署的问题，非常的不方便。
Step 2：
总是骚扰IT部门的同事不太好，我们决定把这儿的统计脚本独立出来，并放到文件域，如：www.mysite_file.com/track/site_a.js，然后把这个js的引...
Command to get time in milliseconds
...ime.
$ time date +%s%N
1597103627N
date +%s%N 0.00s user 0.00s system 63% cpu 0.006 total
Python is still improving it's VM start time, and it is not as fast as ahead-of-time compiled code (such as date).
On my machine, it took about 30ms - 60ms (that is 5x-10x of 6ms taken by date)
$ time python ...
30岁之后，程序员该向什么方向发展？ - 杂谈 - 清泛网 - 专注C/C++及内核技术
...，脑袋没有那么灵光，没有那么有冲劲了，这也是个人的问题。如果你自己不努力，到多少岁都一样。
以前也有人问我二十几岁再开始编程晚不晚，我的回答是，不晚，什么时候都不晚。
QA&2. 您个人或身边有这样的实例吗？...
System.BadImageFormatException: Could not load file or assembly [duplicate]
...e in Visual Studio(compiler settings) the target from “X86 ” to “Any CPU”.
– Tim Schmelter
Oct 25 '12 at 15:07
...
外媒评本轮科技泡沫：创业公司首当其冲 九成将消失 - 资讯 - 清泛网 - 专注...
...团队，这个团队只能以财报电话会议内容以及各种棘手的问题为依据，对私营公司进行投资——把它们当作是上市公司。
总之，越来越多的日常投资者正暴露给后期私营科技公司，无论结果是好还是坏。据博伊德介绍，作为富...
Why wasn't PyPy included in standard Python?
...tten in C, which is traditionally the way Python applications have handled CPU-intensive tasks (see for instance the SciPy project).
The PyPy JIT compilation step itself costs CPU time -- it's only through repeated running of compiled code that it becomes faster overall. This means startup times ca...
Bash script to calculate time elapsed
....
%[p][l]R
The elapsed time in seconds.
%[p][l]U
The number of CPU seconds spent in user mode.
%[p][l]S
The number of CPU seconds spent in system mode.
%P
The CPU percentage, computed as (%U + %S) / %R.
The optional p is a digit specifying the precision, the number of frac...