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对外网用户的squid代理+认证 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...ngproxynew# cd /usr/ports/www/apache13
jiulongproxynew# make install
3、下载并安装squid
从http://www.squid-cache.org/Versions/v2/2.6/下载squid-2.6.STABLE16.tar.gz
并通过FTP放置服务器目录中/home/funpower，然后开始解压安装：
jiulongproxynew# cd /home/funpower
jiul...
搭建高可用mongodb集群（一）——配置mongodb - 大数据 & AI - 清泛网 - 专...
.../single/data
#进入mongodb文件夹
cd /data/mongodbtest/single
2、下载mongodb的安装程序包
wget http://fastdl.mongodb.org/linux/mongodb-linux-x86_64-2.4.6.tgz
#解压下载的压缩包
tar xvzf mongodb-linux-x86_64-2.4.6.tgz
#进入mongodb程序执行文件夹
cd mongodb...
Is MATLAB OOP slow or am I doing something wrong?
... 0.25
isempty(persistent): 0.13
Update: R2018a
Here's R2018a results. It's not the huge jump that we saw when the new execution engine was introduced in R2015b, but it's still an appreciable year over year improvement. Notably, anonymous function handles got way fa...
记录一些Mac OS X技巧 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...X的鼠标加速度很诡异，缓慢移动鼠标时几乎很难移动。
下载Mouse Acceleration Preference Pane这个配置文件，安装后把Mouse加速度改成负值（如-6）就能关闭加速度。
增强触摸板
默认的触摸板设置并不好用，比如单击鼠标必须把触摸...
How to make shallow git submodules?
... if you put branch = mybranch on the .gitmodules as well.
Git 2.20 (Q4 2018) improves on the submodule support, which has been updated to read from the blob at HEAD:.gitmodules when the .gitmodules file is missing from the working tree.
See commit 2b1257e, commit 76e9bdc (25 Oct 2018), and comm...
Do Facebook Oauth 2.0 Access Tokens Expire?
...around a bit, i found this. It seems to be the answer:
Updated (11/April/2018)
The token will expire after about 60 days.
The token will be refreshed once per day, for up to 90 days, when the person using your app makes a request to Facebook's servers.
All access tokens need to be renewed every ...
Getting the location from an IP address [duplicate]
...rl is unsafe on virustotal, due to trojan. The votes were between 2015 and 2018
– Ricardo
Jan 3 '19 at 0:50
...
Is there a way to change the spacing between legend items in ggplot2?
...
ggplot2 v3.0.0 released in July 2018 has working options to modify legend.spacing.x, legend.spacing.y and legend.text.
Example: Increase horizontal spacing between legend keys
library(ggplot2)
ggplot(mtcars, aes(factor(cyl), fill = factor(cyl))) +
...
What are the correct version numbers for C#?
... stackonly struct, everything else.
C# 7.3 released with VS2017 v15.7 (May 2018). New features: enum, delegate and unmanaged generic type constraints. ref reassignment. Unsafe improvements: stackalloc initialization, unpinned indexed fixed buffers, custom fixed statements. Improved overloading resol...
一文了解大数据领域创业的机会与方向 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...智库7月30号发布的中国大数据应用行业的报告显示，2015-2018年中国大数据市场营销规模达到258.6亿人民币。环比增长率为37.2%。
其次，大数据在全球范围内的市场规模同样巨大，根据IDC发布最新研究结果，预测到2018年全球大数...