Mac 更新软件
今天升级服务器的软件的时候突然想起自己的Mac 上面的软件很久都没更新了，虽然说不会怕严重的bug ，但还是要升级一下为好。(其实是强迫症，不更新不舒服) 更新 Homebrew 因为使用了Homebrew ，所以首先要更新一下它。 # brew updateAlready up-to-date. 恩，版本还是最新的，暂时不用升级。 如果需要更新的话，直接执行 brew upgrade...
View Article怎样查看端口是否启用
有时候我们需要查看某一服务的默认端口，在linux下面很好办，无需上网搜索，直接查看“/etc/server”文件就能满足需求了。这里面有一个关于端口号与服务的一个映射。 查看ipp协议默认使用的端口： cat /etc/service|grep ipp 查看所有被打开的端口： netstat -tanp 其中：...
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Hackaday Prize Entry: Raspberry Pi Thermal Imaging
High up on the list of desirable technologies that are edging into the realm of the affordable for the experimenter is the thermal camera. Once the exclusive preserve of those with huge budgets, over...
View ArticleLinux中的 s权限 t权限 i权限 a权限
0X00 s root执行 s权限是'使用root用户执行'的权限。在这里使用 chmod +s filename 和 chmod -s filename 来更改文件的s权限。文件的s权限位区分大小写，如果是大写的S就是s位没有生效，如果是小写的s就是s位已经生效。如果用户本身没有文件的x权限，就直接加上了s权限就会导致s权限位失效，显示为大写S。下面我用一个输出执行者用户名的脚本来演示这个操作。...
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The Tiny Internet Project, Part I
Sep 29, 2016 ByJohn S. Tonello in Education HOWTOs Networking Virtualization As LJ readers well know, linux drives many of the technologies we use every day, from smart TVs to Web servers. Linux is...
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Ubuntu App Developer Blog: Learning to snap with codelabs
The background I always felt that learning something new, especially new concepts and workflows usually works best if you see it first-hand and get to do things yourself. If you experience directly how...
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Showing The Weather In Tmux
Written on September 23, 2016 The weather is unpredictable here on the North coast of Poland where I live, especially around this time of year. On those infrequent occasions when I do leave my...
View ArticleLinux内核通知链机制的原理及实现
一、概念： 大多数内核子系统都是相互独立的，因此某个子系统可能对其它子系统产生的事件感兴趣。为了满足这个需求，也即是让某个子系统在发生某个事件时通知其它的子 系统，linux内核提供了通知链的机制。通知链表只能够在内核的子系统之间使用，而不能够在内核与用户空间之间进行事件的通知。...
View ArticleUbuntu's Shuttleworth Explains Why Not All Containers are the Same
(Other stories bySean Michael Kerner) Mark Shuttleworth, the founder of Ubuntu linux, was an early backer of OpenStack as well as containers. This week, Shuttleworth's company Canonical announced new...
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Raspberry Pi Retro Gaming Guide By Adafruit (video)
Adafruit has this week updated their ongoing Raspberry Pi retro gaming guide which provides all the information you need to transform your Raspberry Pi $40 mini PC into a retro gaming console. Check...
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Pi Cart: RetroPie in a NES Cartridge
I see… RetroPie I can look across my desk right this moment and spot twodifferent USB controllers and two RetroPie-imaged SD cards from where I sit. True story. The ‘organised’ clutter-mess of my desk…...
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OpenWrt成功的秘密
可以实现路由器功能的开源软件很多，为什么只有OpenWrt成功了？OpenWrt软件成功的关键在于3个方面：领导者、基础设施以及实现软件的技术。通常领导者是最重要的，因为领导者决定着社区的规则和技术方向，但是每个人都是独特的而且是无法复制的，因此通常无法借鉴。基础设施和实现软件的技术则是可以借鉴的。...
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从传统运维到云运维演进历程之软件定义存储（三）上
上回书讲完了部署，部署完成之后，就开始了无休止的调优，对于Ceph运维人员来说最头痛的莫过于两件事：一、Ceph调优；二、Ceph运维。调优是件非常头疼的事情，下面来看看运维小哥是如何调优的，运维小哥根据网上资料进行了一个调优方法论（调优总结）。 关卡三：部署调优关之调优（一） 难度：五颗星 优化方法论 通过对网上公开资料的分析进行总结，对Ceph的优化离不开以下几点： 硬件层面 硬件规划...
View ArticleLEDE and OpenWrt
Welcome to LWN.net The following subscription-only content has been made available to you by an LWN subscriber. Thousands of subscribers depend on LWN for the best news from the linux and free software...
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给花生棒装一个KMS服务吧
作为其实正版用户的我身边好多盗版用户,他们需要找个KMS服务器但是自己搭建又不划算,我想到了花生棒,反正要用,为什么不搭建一个,先找找花生棒IP. 然后用SCP协议连接上去,默认用户名root,默认密码xxoo. 上传一下文件,然后给权限. vlmcsd-mips32el-uclibc-static 找了个机器试试....
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Linux: Network Namespace
What is a Network Namespace? Network namespaces allow you to have isolated network environments on a single host. Each namespace has its own interfaces and routing table, separated from other...
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GNOME Calendar App to Feature a New Sidebar, Week View & Attendees in...
GNOME developer Georges Stavracas wrote an in-depth blog post the other day to inform the GNOME, linux, and Open Source communities about the upcoming improvements and new features coming to the GNOME...
View ArticleTripleO deployment of 'master' branch via instack-virt-setup on VIRTHOST (2)
Upstream gets close to Newton Release , bugs scheduled for RC2 went away. Following bellow is a clean and smoothly running procedure of Overcloud deployment TripleO Master branch via instack-virt-setup...
View ArticleDeploying Django with Fabric
This is a followup to my previous posting Deploying Django with Gunicorn and Supervisor . I have been using Fabric for five or even more years. Fabric is a very flexible and powerful tool for...
View ArticleGetting started with osquery on CentOS
I recently stumbled across osquery which allows you to query your linux, and OS X, servers for various bits of information. It’s very similar in concept to WQL for those in the windows world. Here’s...
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