nginx 설정 설명

location block의 모습

location optional_modifier location_match {

    . . .

}

location을 match할때는 다음 순서로 이루어진다.

1. URL의 prefix가 일치하는지 먼저 검사하여, 일치하는 것이 발견되면 기억해 놓고, 다음 location match를 수행한다. 즉 멈추지 않는다.
2. regular expression과 일치하는 것이 있는 검사한다.
3. 최종적으로 일치하는 regular expression이 있으면 그것을 선택하고, 없으면 1번에서 발견한 prefix 일치하였던 것을 리턴한다.
4. prefix match 중에 '=', '^~' 로 수식된 것에서 prefix 일치가 발견되면 regular expression 비교 수행하지 않고 바로 리턴한다. (1번의 예외상황)

location block에서 optional_modifier 의미

• = 는 exact match를 의미.  RE 진행하지 않음
• / 및 /abc 는 prefix를 의미 
• ~는 regular expression(대소문자 구분함)을 의미.  ~*는 대소문자 구분없는 RE(regular expression)
• ^~는 match된 경우에 RE 진행하지 않음 이라는 의미.
  
  
  

location = / {    
    [ configuration A ]
}

location / {
    [ configuration B ]
}

location /documents/ {
    [ configuration C ]
}

location ^~ /images/ {
    [ configuration D ]
}

location ~* \.(gif|jpg|jpeg)$ {
    [ configuration E ]
}

nginx 설정

/etc/nginx/sites-available 아래에 파일을 생성하고,  

/etc/nginx/sites-enabled 에서 링크를 연결한다 (ln -s /etc/nginx/sites-available/xyz . ) 

참고 - https://www.digitalocean.com/community/tutorials/understanding-nginx-server-and-location-block-selection-algorithms

요즘 스크래치(scratch)와 연동되는 장난감 로봇 같은 제품들이 나오고 있습니다.

이러한 장난감을 스크래치를 통해 직접 제어하면서 SW 및 프로그래밍의 개념을 쉽게 익힐 수가 있습니다.

이런 장난감을 스크래치(scratch)에서 제어하려면 scratch extension 모듈을 개발하여야 합니다.

 scratch extension 모듈은 스크래치로부터 명령을 받아서, 장남감을 제어하는 아두이노(Arduio) 또는 전용의 임베디드 시스템을 USB (UART) 통신을 통해 제어하는 기능을 제공해야 합니다.

이러한  scratch extension 모듈 개발이 필요하신 분은 연락 주세요. 

(handol 지메일 입니다. 제목에 [스크래치] 라고 붙여주세요)

아래 동영상은 다른 프로젝트에서 개발 결과물의 동작을 짧게 촬영한 것입니다.

스크래치 화면에서 부저 센서에 '도', '레'  플레이 명령어를 보낸 것입니다.

모듈간의 연동 방식은 다음과 같습니다.

스크래치 (scratch) <-- HTTP --> 확장 모듈(개발한 모듈) <-- USB 통신 --> 아두이노 또는 장남감 블록(마스터) <-- BLE --> 센서 블록 

스크래치,아두이노까지 코딩교육은 캐릭터를 입은 로봇 디오와 함께!

http://www.wadiz.kr/Campaign/Details/828

큐브로이드 : 소프트웨어 교육을 위한 로봇 블록

http://www.wadiz.kr/web/campaign/detail/3429

Google App Engine 에서 Flask 기반으로 개발하기

PyCharm을 이용하여 GAE(Google App Engine)에 Flask 기반으로 'Hello World'를 만들고,

실제로 deploy 하기까지의 설명을  간단하면서도 잘 설명하였다.

PyCharm 의 Google App Engine 개발 환경 세팅에 대해서도 잘 나와있다.

https://developer.expectlabs.com/docs/crawlerConfiguration

{ "uri": "http://www.techcrunch.com", "whitelist": [ { "starts-with" : "/2014/" } ], "blacklist": [ { "contains" : "evernote" } ] }

• { "uri": "http://www.techcrunch.com",
    "whitelist": [ { "starts-with": "/2013/" },
                   { "matches-regex": "^/[0-9]{4}/(04|05|06)/" } ],
    "blacklist": [ { "contains": "google" } ] }

http://www.linkedin.com/today/post/article/20140425140237-16911014-worry-about-the-things-that-you-can-change

Are you a worrier? Do you worry that you get worried by small things, big things, ALL things? The thing is – worrying takes up a lot of time and energy that can be better used elsewhere. Dispense with it wherever possible.

Worrying is a common human emotion that usually occurs when an outcome is uncertain, or something might happen over which we have no control. Let’s think about control for a moment.

This thing you worry about. Do you have any control over the matter? Can you change it? If you don’t have any control over what’s worrying you, and you can’t change it – then don’t worry.

If you think you should be able to control everything – who appointed you Managing Director of the Universe?

You may not be able to control events or other people, but you can control your own emotions. You can take control of worrying, and if you like, delete it from your life. No worries.

Does the thought of having no worries worry you?

You probably already know that anxiety and worry cost time and add no value whatsoever to what you are doing. So why do it?

Do you only worry about work-related things, or does anxiety affect your personal life too? Whether you suffer from worrying about a particular thing – your health, your marriage – or from what is known as ‘free-floating anxiety’ – worrying about all sorts of things you can’t affect, or worrying about things in general, then you’ve probably realised that you may need more help than I can provide here. For now, we will allay your mild, niggling worries. and help you to control that tendency.

If you are somebody who does worry, what is causing that?

Dean Hawkes of Columbia University once said “Half the worry in the world is caused by people trying to make decisions before they have sufficient knowledge on which to base a decision.”

He makes a very good point. So – get the facts, weigh them up and then make a decision. The important thing to do once you have made your decision is to ACT on it. Don’t procrastinate. Don’t spend your time worrying about what could go wrong. Look instead at the positives, and focus on them.

Before you are tempted to worry about a problem – take stock of it and ask yourself the following:

• What is the problem?
• What is the cause of the problem?
• What are the possible solutions?
• What is the best solution?

You will be amazed how simple the initial “worry” will become and how easily resolved it can be.

If this approach does not work for you, then you can take it one step further, and pander to your need to catastrophise. Face the very worst case scenario. Ask yourself these 3 questions:

• What is the absolute worst thing that could happen?
• What are the chances of this actually happening?
• What would I or could I do about it, if that did happen?

Considering worst case scenarios, then visualising and finding solutions for them, is one of the best ways to deal with anxieties. You may find that the worst thing that can happen isn’t insurmountable. Or you may be able to laugh at the ridiculousness of your worry when you actually put it into perspective.

Jack: OMG! I have forgotten my mother-in-law’s birthday party! OMG! I am a dead man! I can’t go home. What am I going to do?
Jill: What’s the worst thing that can happen?
Jack: She might never speak to me again!
Jill: That’s the worst thing. Your mother-in-law won’t talk to you.
Jack: Yeah. Oh. Wait. No. That’s not so bad.
Jill: OK. So what’s the worst thing?
Jack: My wife will kill me?
Jill: Really. How, precisely, will she kill you?
Jack: Painfully. Oh, you mean, how? Erm. With a look. That look.

Focus on a solution. Your entrepreneurial creativity will find solutions to even the toughest scenarios. This exercise gets you to confront your worst fears and – more importantly – to provide practical resolutions for them. Once you have a plan to address the worst thing that can happen, the problem and uncertainty is minimised. That allows you to move on.

After you have considered your worst case scenario, if you do discover that there is nothing you can do about it, embrace the certainty. It can be a relief to be absolved of choice and resign yourself to the inevitable. If you know something is going to happen and you cannot change it, then live with it! Enjoy the ride and enjoy the learning, since there is nothing else you can do.

Another common problem is worrying about the past. Now, I have met some very clever people in my time, but I have yet to meet anyone who can turn back time. Don’t waste time worrying about something in the past that has gone. There is nothing you can you can do about it, other than to learn from it and take the learning forward to inform the future. Leave unhelpful emotions in the past, where they belong. Reflect on what has happened. Reflect on what you have learnt about what has happened. Decide what you’ll do differently in the future. Embrace it as a great learning opportunity, and move on.

Develop a positive mental attitude. Know that it takes as much time and energy to do something about a problem or fix the thing we’re worried about, as it does to worry about it. Instead of sitting worrying – do something, and sort it out!

Worry adds no value to your life. If you must worry at all, develop processes that minimise the time spent worrying by setting a time constraint. Say,OK, I am going to spend five minutes worrying about this, and then I am going to move on.Work through your worry methodically, until you reach conclusions and find solutions or come to an acceptance. Within those five minutes!

Above all, recognise your role in being able to change things. If you can do something, that’s great. Do it.

If you can’t, just don’t waste your energy thinking about it. Think of positive things you can do. Life is too short!

Further Reading:

Feel the Fear and Do it Anyway by Susan Jeffers (Amazon LinkUK,US)

The Power of Now by Eckhart Tolle (Amazon Link UK,US)

How to Stop Worrying and Start Living by Dale Carnegie (Amazon LinkUK,US)

If the above topic, or indeed any of my blogs are of interest to you, then sign up to my weekly blog at www.theviewinside.met or email me at getintouch@marcwinn.com

Marc

The Future of Virtual Reality

http://j.mp/174gpKP 이라는 short URL의 원본 URL을 알고 싶다면

HTTP 301 redirect를 처리할 수 있어야 한다.  (302, 303 등도 있음)

잘 설명된 곳

http://www.pythonforbeginners.com/cheatsheet/python-mechanize-cheat-sheet/

간단 코드

import mechanize
import urllib
import random

class Transaction(object):
        def run(self):
                br = mechanize.Browser()
                br.set_handle_robots(False)
                resp = br.open('http://aaa.com/')
                resp.read()

위자드웍스가 흥미로운 일을 하고 있었네요. 

Protovis

http://mbostock.github.io/protovis/ex/force.html

D3

http://d3js.org/

http://www.jasondavies.com/wordcloud/#http%3A%2F%2Fen.wikipedia.org%2Fwiki%2F%7Bword%7D=cloud