7 min
IT Ops
登录软件定义网络
Background
This blog will give an overview of Software Defined Networks (SDN), present some
suggestions for logging in an SDN and finally present an overview of some
我们正在做的关于SDN日志的研究工作.
If we consider a Software Defined Network (SDN) paradigm is a racetrack, SDN
控制器是赛车. 网络供应商，特别是那些在
telecommunication area such as Deutsche Telecom, Orange, Vodafone use their own
SDN controllers to manage the orchestration of their own equi
4 min
IT Ops
Network Administrator’s Guide to Surviving an Audit: Preparation
Sooner or later, your organization will likely be the subject of an IT audit.
But as ominous as that sounds, it doesn’t have to be something to dread. If
you’re a network administrator, you’ll have a specific role in an audit. Since
audits are rarely small projects, you’ll likely be working with others
throughout the process. 做好你的特定角色的最好方法就是成为
在审计前做好准备. 简单地说，审计就是检查
来确定控件是否足够
4 min
IT Ops
系统故障处理日志分析
Systems of all kinds create log data constantly and voluminously. In searching
out the most compelling reasons to dig into and analyze such data, we compiled a
通常驱动此类活动的七个原因. In this blog post we
解决这7个问题中的第一个，包括:
1. System troubleshooting
2. 安全事件响应
3. 安全故障排除
4. 性能故障诊断
5. 理解用户行为或活动
6. 遵守安全策略
7. Complianc
8 min
IT Ops
根源与文化:伐木和电话费
Telephone systems were the Internet before there was an Internet.
Think about it.
By 1920 millions of people were exchanging data on a worldwide network using a
按需连接的设备. 听起来像互联网.
But unlike the current day Internet, the telephone system cost money to use.
亚历山大·格雷厄姆·贝尔(Alexander Graham Bell)的投资者希望这样. 所以他们给了他
the money. Thus, people who used the telephone system had to pay for it. So
从1877年开始，每个月都有
6 min
IT Ops
结对编程礼仪的5条规则
我喜欢结对编程[http://en].wikipedia.org/wiki/Pair_programming]. I’ve
我断断续续地做了大约10年. 每当我进行结对编程时
the end of a session, I’ve always walked away a better developer than when I
started.
However, the practice can be expensive when the pair doing the programming
are not efficient. 当两个程序员之间存在很多摩擦时
involved, costs can exceed double that of a single programmer trying to hash
事情就在他或她自己身上发生
2 min
IT Ops
Java 8 -延迟参数计算
Overview
“我总是选择一个懒惰的人去做困难的工作。. Because he will find
一个简单的方法”——比尔·盖茨
惰性求值是一种求值策略
[http://en.wikipedia.这将延迟评估
直到需要它的值为止. 与之相反的是渴望
evaluation, where an expression is evaluated as soon as it is bound to a
variable.[wikipedia [http://en.wikipedia.org/wiki/Lazy_evaluation]]
像大多数命令式编程一样
4 min
IT Ops
了解用户活动和行为的日志
Logging user activity is a great way to understand what users are doing, and how
他们正在使用网络和计算资源. 从
standpoint of a user identity or login is a great way to correlate all kinds of
information, too, including client or workstation activity, network and server
访问和应用程序使用. 这提供了一个独特的机会来利用
Logentries’
[http://logentries.com/centralize-log-data-automatically/?le_trial = user_activity_and_behav
6 min
IT Ops
关联id的值
In the old days when transactional behavior happened in a single domain, in
step-by-step procedures, keeping track of request/response behavior was a simple
undertaking. However, today one request to a particular domain can involve a
myriad of subsequent asynchronous requests from the starting domain to others.
For example, you send a request to Expedia, but behind the scenes Expedia is
将请求作为消息转发给消息代理. Then that message is
由酒店、航空公司消费
5 min
IT Ops
The Generosity of Thought: Caring and Sharing in the Open Source Community
我想和你们分享一些非常神奇的东西. But, before I do,
请允许我提供背景故事.
The Backstory
我使用开源软件(OSS)已经有一段时间了. I started with the
大的，Apache [http://apache].org/]， Maven [http://maven].apache.org/], MySQL
[http://www.mysql.com/], etc…. 但是，随着时间的推移，我的工作变得越来越
专业，我开始使用较小的项目. 当你使用大项目时
such as Maven and Apache, there’s a boatload of books, video
5 min
IT Ops
解决表达式问题
If you look at any OO-based codebase of a nontrivial size, you’ll [hopefully]
find well understood behavior formalized and encapsulated through the effective
use of polymorphism- either via interfaces which decouple calling code from a
types’ implementation, or via sub typing to share code common to multiple types.
To take an example from a statically typed language like Java, let’s look at the
Map interface and a few of its implementations in the standard library:
一种接收方法
3 min
InsightOps
Announcing InsightOps - Pioneering Endpoint Visibility and Log Analytics
Our mission at Rapid7 is to solve complex security and IT challenges with
简单、创新的解决方案. 去年年底，Logentries加入了Rapid7大家庭
来帮助推动这项任务. Logentries技术本身
designed to reveal the power of log data to the world and had built a community
of 50,000 users on the foundations of our real time, easy to use yet powerful
日志管理[http://www].sdpeskoe.com/fundamentals/what-is-log-management/)和
analytics engine.
Today we are
5 min
IT Ops
Node.js作为logentry的代理.com
Logging from the client side of a web application can seem like a challenge.
web浏览器向用户公开所有内容. There is no way to hide
anything delivered to the client from prying eyes, including your log token to
your Logentries
[http://logentries.com/centralize-log-data-automatically/?le_trial=nodejs_as_a_proxy-logentries_blog-post_cta-create_trial&utm_campaign = nodejs_as_a_proxy&utm_source = logentries_blog&utm_medium=post_cta&utm_content = create_trial]
log. There is no relia
4 min
IT Ops
再见了录像机:倒带回忆巷
The VHS tape was a thing of a magic that is alien in the world of on-demand
media. 它代表了一种娱乐的承诺. 承诺只有在实现的时候
loading the tape into the player and pressing the play button. There was an air
of excitement around every video, and you could never be entirely certain about
视频内容.
I was reminded of the mystique of the VCR just this month when I read about its
final demise. Funai Electric, the last major manufacturer of VCR players,
3 min
IT Ops
广泛使用的Android应用程序泄露MS Exchange凭证
10月，Rapid7的研究人员
[http://community.sdpeskoe.com/community/infosec/blog/2016/10/11/r7-2016-21-nine-folders-certificate-validation-vulnerability-cve-2016-2533]
uncovered a significant vulnerability in the Nine mobile application
[http://play.google.com/store/apps/details?id=com.ninefolders.hd3&hl=en] for
Android. Baldly stated, this app leaks Microsoft Exchange user credentials, plus
mail envelopes and attachments, mailbox synchronization data, caleandar entries
and tasks to attac
4 min
IT Ops
Overview of 'online' algorithm using Standard Deviation example
Here at Logentries
[http://logentries.com/centralize-log-data-automatically/?le_trial=online_algorithm-logentries_blog-post_cta-create_trial&utm_campaign = online_algorithm&utm_source = logentries_blog&utm_medium=post_cta&utm_content = create_trial]
we are constantly adding to the options for analysing log generated data. The
query language ‘LEQL’
[http://logentries.com/ resources/howto - videos/build-a -query/有一个数字
of statistical functions and a recent addition has been the new Standard