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Cannot download Docker images behind a proxy

Published at February 26, 2019 ·  1 min read

如何为 docker 配置 proxy,最初以为在 env 中配置即可,结果测试后不知为何不行,按照此方法确实可用。 Cannot download Docker images behind a proxy...

Cross-Origin Resource Sharing (CORS)

Published at February 25, 2019 ·  1 min read

CORS 跨域资源访问的详细介绍,域(origin)的定义为域名、协议和端口,也就是说三者其中之一发生改变则需要面临 CORS 问题。服务端需要根据请求的 origin 来判断是否在允许的范围内而决定是放行还是拒绝。在目前较多的 web 框架中,prefilighted requests 则逐渐成为主流,由客户端先通过 “OPTION” 方法发送一个请求,将请求的方法和头放到 header 中发送,服务器端则返回相应的结果,并交由浏览器判断。 Cross-Origin Resource Sharing (CORS)...

Why is Redis So Fast

Published at February 23, 2019 ·  1 min read

redis 为何如此之快,除了将数据存储到内存外,其充分利用了Linux 中的 epoll/kqueue ,通过 i/o 上的多路复用以及事件驱动,达到了很高的并发 Why is Redis So Fast...

Async IO on Linux: select, poll, and epoll - Julia Evans

Published at February 23, 2019 ·  1 min read

作者在阅读 「The Linux Programming Interface」这本书后给出的在 Linux 中异步 IO 方案选择上的判断,对 select,poll, epoll 做对比,其中 epoll 为一种事件驱动的更为高效节省资源的方案 Async IO on Linux: select, poll, and epoll - Julia Evans...

Introducing Lemur – Netflix TechBlog – Medium

Published at February 18, 2019 ·  1 min read

Netflix 开源的 cert 管理软件,要好好学习下,在一个项目中或许能够用得上 Introducing Lemur – Netflix TechBlog – Medium...

How to install and use tmpreaper

Published at February 18, 2019 ·  1 min read

介绍如果使用 tmpreaper 实现定期清理 Linux 系统中的临时文件,防止文件爆盘当机 How to install and use tmpreaper...

Nginx中转Shadowsocks与负载均衡

Published at February 18, 2019 ·  1 min read

通过 nginx 在国内做负载均衡,连接海外的 ss 服务器,核心是将 ss 的 udp/tcp 做转发 Nginx中转Shadowsocks与负载均衡...

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