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  • Running a webserver behind a firewall, is it secure?

    - by i.am.intern
    Currently we have a Linux-based firewall which NAT-ing our public IP address to give internet access to our staff's PCs and a Windows Server 2003 for internal filesharing. I want to host Redmine/SVN (a bugtracker) internally behind this firewall using a Linux server. This webserver will be accessed by our clients externally so they can post bug reports. This means that I have to open port 80 & 22 at the firewall to give access to the webserver and me to SSH it from home. However, let's say I'm using password-based SSH for the webserver and somebody cracked it. Does that mean the cracker could ping and access other servers and PCs in the network?

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  • better way to write this

    - by ash34
    Hi, I have to create a hash of the form h[:bill] = ["Billy", "NA", 20, "PROJ_A"] by login where 20 is the cumulative number of hours reported by the login for all task transactions returned by the query where each login has multiple reported transactions. Did I do this in a bad way or this seems alright. h = Hash.new Task.find_each(:include => [:user], :joins => :user, :conditions => ["from_date >= ? AND from_date <= ? AND category = ?", Date.today - 30, Date.today + 30, 'PROJ1']) do |t| h[t.login.intern] = [t.user.name, 'NA', h[t.login.intern].nil? ? (t.hrs_per_day * t.num_days) : h[t.login.intern][2] + (t.hrs_day * t.workdays), t.category] end Also if I have to aggregate not just by login but login and category how do I accomplish this? thanks, ash

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  • rails data aggregation

    - by ash34
    Hi, I have to create a hash of the form h[:bill] = ["Billy", "NA", 20, "PROJ_A"] by login where 20 is the cumulative number of hours reported by the login for all task transactions returned by the query where each login has multiple reported transactions. Did I do this in a bad way or this seems alright. h = Hash.new Task.find_each(:include => [:user], :joins => :user, :conditions => ["from_date >= ? AND from_date <= ? AND category = ?", Date.today - 30, Date.today + 30, 'PROJ1']) do |t| h[t.login.intern] = [t.user.name, 'NA', h[t.login.intern].nil? ? (t.hrs_per_day * t.num_days) : h[t.login.intern][2] + (t.hrs_day * t.workdays), t.category] end Also if I have to aggregate this data not just by login but login and category how do I accomplish this? thanks, ash

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  • Entry level developer career advice [closed]

    - by Evan
    I just got done with college and I have a full time job with a large software company that I have been an intern at for over a year. As an intern I was on the web team doing lots of architecture and developing UI in ExtJS and some Java backend experience. Now as a full time employee I am mainly doing ExtJS applications, which I enjoy a lot, and I want to stay in the web development field, but: Am I limiting my career options with just doing ExtJS stuff? Will experience in ExtJS help or hinder my programming skills? Will I be looked down upon because I'm only gaining experienced with ExtJS?

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  • I'm the .1x programmer at my company. How can I best contribute?

    - by invaliduser
    I work at a newly-minted startup of five people. We have a Ph. D in machine learning, a former member of the RSpec core team, and the guy who compiles the Git binary for OS X. That's just the employees; the founder has a Ph. D and was CTO for a multi-billion-dollar corporation before leaving to start a (successful) startup, and has now left that to start this one. We also might get a guy with a Ph. D in math. Aaaaaaaaand then there's me, college-dropout intern. I think I'm pretty smart and I'm reading non-stop, but the delta of experience, skill, and knowledge between me and my co-workers is just breathtaking. So put yourself in their shoes: you've got a bright young intern who has a lot to learn but is at least energetic. What would be annoying? What use would you hope to get out of him in the here and now? What would be pleasantly surprising if it happened?

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  • Two approaches to adding freelance/contract work to resume [on hold]

    - by melhosseiny
    Approach A Title, Company A Freelance + Title, Company B Title, Company C Freelance + Title, Company D Title, Intern, Company E Approach B Title, Company A Title, Company B Title, Self Title, Intern, Company D In approach B, you would list all freelance/contract work you did under the "Title, Self" experience. For example: Company A Project 1 Project 2 Company B Project 1 Question Which of these two approaches is better? And why? Update I think there's value in this question to the community as it relates specifically to programmers. I'd think that handling this issue on a resume is career-specific. Also, I've found similar questions on the site: Referring to freelance marketplaces as evidence of the experience for a potential full-time employer How to write freelancing in resume for programmers job In any case, I don't think it should be closed. It should be migrated to The Workplace or Freelancing.

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  • From a performance standpoint, is there a preferred way to set up Thunderbird message filters?

    - by Steve V.
    When I used Kontact, I used filters heavily to sort my incoming email into various folders. Since switching to Thunderbird, I've been slowly recreating these filters as new mail arrives. This seems like the perfect time to rethink how I use message filters. The way I see it, there are two basic ways to filter messages. Either I can have lots of filters, or I can have lots of criteria. An example is in order. Assume that I get emails from four people (Boss, CEO, Intern, and StackOverflow) that I want to sort into two folders, "Stack" and "Work" Option A: Filter 1: if FROM contains "Boss" -> move to "Work" Filter 2: if FROM contains "CEO" -> move to "Work" Filter 3: if FROM contains "Intern" -> move to "Work" Filter 4: if FROM contains "StackOverflow" -> move to "Stack" Option B: Filter 1: if FROM contains "Boss" OR FROM contains "CEO" OR FROM contains "Intern" -> move to "Work" Filter 2: if FROM contains "StackOverflow" -> move to "Stack" Assuming that when I'm done, I'll have about a hundred different criteria to filter on, is one of these methods better than the other from a performance standpoint?

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  • Error while reading from spreadsheet in Ruby

    - by intern
    I am getting following error while reading from a spreadsheet file. I have searched alot on Google. I have seen posts with similar problems but no reply to the problems. Does anyone know how to resolve this error? C:/Ruby/lib/ruby/gems/1.8/gems/ruby-ole-1.2.8.2/lib/ole/storage/file_system.rb:125:in `dirent_from_path': No such file or directory - Workbook (Errno::ENOENT) from C:/Ruby/lib/ruby/gems/1.8/gems/ruby-ole-1.2.8.2/lib/ole/storage/file_system.rb:158:in `open' from C:/Ruby/lib/ruby/gems/1.8/gems/spreadsheet-0.6.3/lib/spreadsheet/excel/reader.rb:1060:in `setup' from C:/Ruby/lib/ruby/gems/1.8/gems/spreadsheet-0.6.3/lib/spreadsheet/excel/reader.rb:118:in `read' from C:/Ruby/lib/ruby/gems/1.8/gems/spreadsheet-0.6.3/lib/spreadsheet/excel/workbook.rb:32:in `open' from C:/Ruby/lib/ruby/gems/1.8/gems/spreadsheet-0.6.3/lib/spreadsheet.rb:62:in `open' from C:/Ruby/lib/ruby/gems/1.8/gems/spreadsheet-0.6.3/lib/spreadsheet.rb:68:in `open' from Fluent_search.rb:90:in `initialize' from Fluent_search.rb:77:in `new' from Fluent_search.rb:77:in `display_from' from Fluent_search.rb:97

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  • how is FLUENT api different from other API

    - by intern
    i have come across fluent api while studying DSLs. i have searched alot on FLUENT API..the basic conclusion which i could draw out was that fluent api uses method chaining in order to make the code fluent. but i cannot understand that in object oriented languages we can always create an object and can call the methods related to it. then how is FLUENT api different from it? what other features does fluent api add?

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  • fluent api complex example

    - by intern
    we have tried some of simple Fluent API examples. to brush up our skills we want to move ahead to complex examples. but we do not what to make as a complex fluent api. can anyone suggest what should we make or where can we get the idea about it? we have recently started writing fluent api codes in Ruby and have tested very basic ones. Now we want to move to complex ones to get better idea about it.

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  • chef-solo example

    - by intern
    We are learning chef-solo and need a good example for better understanding.. Have searched a lot on net but the ideas are very confusing. can anyone suggest some examples.. and also how to run them.. We have installed chef-0.8.16 gem but couldnt figure out how to work with it.. We are using windows platform..Its urgent..

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  • fluent interface program in Ruby

    - by intern
    we have made the following code and trying to run it. class Numeric def gram self end alias_method :grams, :gram def of(name) ingredient = Ingredient.new(name) ingredient.quantity=self return ingredient end end class Ingredient def initialize(n) @@name= n end def quantity=(o) @@quantity = o return @@quantity end def name return @@name end def quantity return @@quantity end end e= 42.grams.of("Test") a= Ingredient.new("Testjio") puts e.quantity a.quantity=90 puts a.quantity puts e.quantity the problem which we are facing in it is that the output of puts a.quantity puts e.quantity is same even when the objects are different. what we observed is that second object i.e 'a' is replacing the value of the first object i.e. 'e'. the output is coming out to be 42 90 90 but the output required is 42 90 42 can anyone suggest why is it happening? it is not replacing the object as object id's are different..only the values of the objects are replaced.

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  • fluent interface program in Ruby

    - by intern
    we have made the following code and trying to run it. class Numeric def gram self end alias_method :grams, :gram def of(name) ingredient = Ingredient.new(name) ingredient.quantity=self return ingredient end end class Ingredient def initialize(n) @@name= n end def quantity=(o) @@quantity = o return @@quantity end def name return @@name end def quantity return @@quantity end end e= 42.grams.of("Test") a= Ingredient.new("Testjio") puts e.quantity a.quantity=90 puts a.quantity puts e.quantity the problem which we are facing in it is that the output of puts a.quantity puts e.quantity is same even when the objects are different. what we observed is that second object i.e 'a' is replacing the value of the first object i.e. 'e'. the output is coming out to be 42 90 90 but the output required is 42 90 42 can anyone suggest why is it happening? it is not replacing the object as object id's are different..only the values of the objects are replaced.

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  • Create directory using rake in windows

    - by intern
    We were trying to run fllowing code in rake file: directory "tmp" file "hello.tmp" => "tmp" do sh "echo 'Hello' >> 'tmp/hello.tmp'" end We have taken this code from http://jasonseifer.com/2010/04/06/rake-tutorial But, since we are working on windows commands like'sh','echo' wont work.. according to the explanation given for the above code, it should first create a directory 'tmp' and then create a file 'hello.tmp' which will have 'hello' as its text.. Firstly, how can we do this for windows? and Secondly, a file with extension '.tmp' sounds quite wierd.. what does 'hello.tmp' specifies? Does it simply mean that 'hello.tmp' is a text file in 'tmp' directory?

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  • AsyncTask, inner classes and Buttons states

    - by Intern John Smith
    For a musical application (a sequencer), I have a few buttons static ArrayList<Button> Buttonlist = new ArrayList<Button>(); Buttonlist.add(0,(Button) findViewById(R.id.case_kick1)); Buttonlist.add(1,(Button) findViewById(R.id.case_kick2)); Buttonlist.add(2,(Button) findViewById(R.id.case_kick3)); Buttonlist.add(3,(Button) findViewById(R.id.case_kick4)); Buttonlist.add(4,(Button) findViewById(R.id.case_kick5)); Buttonlist.add(5,(Button) findViewById(R.id.case_kick6)); Buttonlist.add(6,(Button) findViewById(R.id.case_kick7)); Buttonlist.add(7,(Button) findViewById(R.id.case_kick8)); that I activate through onClickListeners with for example Buttonlist.get(0).setActivated(true); I played the activated sound via a loop and ifs : if (Buttonlist.get(k).isActivated()) {mSoundManager.playSound(1); Thread.sleep(250);} The app played fine but I couldn't access the play/pause button when it was playing : I searched and found out about AsyncTasks. I have a nested class PlayPause : class PlayPause extends AsyncTask<ArrayList<Button>,Integer,Void> in which I have this : protected Void doInBackground(ArrayList<Button>... params) { for(int k=0;k<8;k++) { boolean isPlayed = false; if (Buttonlist.get(k).isActivated()) { mSoundManager.playSound(1); isPlayed = true; try {Thread.sleep(250); } catch (InterruptedException e) {e.printStackTrace();}} if(!isPlayed){ try {Thread.sleep(250);} catch (InterruptedException e) {e.printStackTrace();} } } return null; } I launch it via Play.setOnClickListener(new PlayClickListener()); with PlayClickListener : public class PlayClickListener implements OnClickListener { private Tutorial acti; public PlayClickListener(){ super(); } @SuppressWarnings("unchecked") public void onClick(View v) { if(Tutorial.play==0){ Tutorial.play=1; Tutorial.Play.setBackgroundResource(R.drawable.action_down); acti = new Tutorial(); Tutorial.PlayPause myPlayPause = acti.new PlayPause(); myLecture.execute(Tutorial.Buttonlist); } else { Tutorial.play=0; Tutorial.lecture.cancel(true); Tutorial.Play.setBackgroundResource(R.drawable.action); } } } But it doesn't work. when I click on buttons and I touch Play/Pause, I have this : 07-02 11:06:01.350: E/AndroidRuntime(7883): FATAL EXCEPTION: AsyncTask #1 07-02 11:06:01.350: E/AndroidRuntime(7883): Caused by: java.lang.NullPointerException 07-02 11:06:01.350: E/AndroidRuntime(7883): at com.Tutorial.Tutorial$PlayPause.doInBackground(Tutorial.java:603) 07-02 11:06:01.350: E/AndroidRuntime(7883): at com.Tutorial.Tutorial$PlayPause.doInBackground(Tutorial.java:1) And I don't know how to get rid of this error. Obviously, the Asynctask doesn't find the Buttonlist activated status, even if the list is static. I don't know how to access these buttons' states, isPressed doesn't work either. Thanks for reading and helping me !

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  • c# string interning

    - by CodingThunder
    I am trying to understand string interning and why is doesn't seem to work in my example. The point of the example is to show Example 1 uses less (a lot less memory) as it should only have 10 strings in memory. However, in the code below both example use roughly the same amount of memory (virtual size and working set). Please advice why example 1 isn't using a lot less memory? Thanks Example 1: IList<string> list = new List<string>(10000); for (int i = 0; i < 10000; i++) { for (int k = 0; k < 10; k++) { list.Add(string.Intern(k.ToString())); } } Console.WriteLine("intern Done"); Console.ReadLine(); Example 2: IList<string> list = new List<string>(10000); for (int i = 0; i < 10000; i++) { for (int k = 0; k < 10; k++) { list.Add(k.ToString()); } } Console.WriteLine("intern Done"); Console.ReadLine();

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  • 25 years old and considering a career change...possible? practical?

    - by mq330
    Hi all, I'm new to this site and new to programming as well. I've spent some time going through an intro cs book that uses python as the language of choice. I find the exercises interesting and engaging and I generally have had a favorable experience programming so far. I've gone through some of the basics with python like writing simple programs, basics of GUIs, manipulating strings, lists, defining functions, etc. And I've always loved technology. Although I've never done any real hardcore programming yet, I was inclined to building websites from a very young age but I never really developed my skills. Now, the thing is I'm 25, I have my bacholors in environmental studies and two masters degrees in urban planning and landscape architecture respectively. I know, it would be quite a departure to pursue a career in programming at this point. Currently, I'm working as a geographic information systems intern. I've taken some GIS classes and have a lot of experience with making maps, doing spatial analysis etc. So what I'm thinking is maybe I can learn some solid programming skills and apply these skills in the field of GIS. From what I've seen, .net languages are the norm in this arena. Could you perhaps provide some guidance to me in terms of what languages I should focus on or courses I should take at this point? What about for building web mapping applications? Also, I was thinking about getting a certificate in programming from a university extension program. Do you think it would be worth it? And furthermore, do you think potential employers would be interested in hiring someone like me (once I get a couple of languages down pretty well) as an intern or in an entry level position? I'll be living in the bay area so I feel that there should be decent opportunities even though I don't have a b.s. in cs.

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  • Using Android on a PND(portable nagigation device)?

    - by user322202
    Hi, i'm looking for a PND on which i can install android. For example: http://www.medion.com/de/electronics/prod/MEDION%C2%AE+GoPal%C2%AE+P4440+EU/30010109A1?category=navigation_28&recId=&wt_mc=de.intern.m-shop.pro-pla.on-ma&wt_cc1=m-shop_topseller_navigation-2-links&wt_cc2=30010109A1&wt_cw=30.2.8&utm_source=Internetseite-intern&utm_medium=Kachel&utm_content=navigation_2-links&utm_campaign=Kategoriekachel-Hotspots&utm_term=30010109A1 I would like to install Android - not on a mobile phone, like it’s commonly down - but on a navigation device. In doing so I want to completely remove the old operating system and replace it with Android. Is this even possible, provided the hardware matches Android’s requirements, or are there other criteria to be aware of ? Unfortunately I have not found any implementations of this kind yet and am therefore hoping that you can provide me with some help in this regard. Sincerely yours, Christian

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  • Interning strings in Java

    - by Tiny
    The following segment of code interns a string. String str1="my"; String str2="string"; String concat1=str1+str2; concat1.intern(); System.out.println(concat1=="mystring"); The expression concat1=="mystring" returns true because concat1 has been interned. If the given string mystring is changed to string as shown in the following snippet. String str11="str"; String str12="ing"; String concat11=str11+str12; concat11.intern(); System.out.println(concat11=="string"); The comparison expression concat11=="string" returns false. The string held by concat11 doesn't seem to be interned. What am I overlooking here? I have tested on Java 7, update 11.

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  • How to avoid becoming a programmer while still beign closely involved with computer science/Industry

    - by WeShallOvercome
    I am studying computer science (A masters at an Ivy league), however most of the jobs i find involve way too much of programming. And frankly programming is not an issue, however programming without a meaning (read financial institution (non trading), other non mainstream jobs) bore me to death! I dont want to end up becoming a .NET,C#, Java kind of programmer. Can someone tell where i should look for jobs if i wish to do some real computer science work such as Machine Learning etc. I don't mind programming but becoming a Financial Software dev at Bloomeberg or an SDET at Microsoft isn't actually one of my goals. [note: I have interviewed for intern both positions listed above, and thankfully i got an intern for a data mining position in a top 750 Alexa rank web company] Sorry if angered anyone with a subjective question

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  • A Digital Forensics Student's Linux Workspace

    <b>Tech Source:</b> "Our next entry for the "The $100.00 (USD) Coolest Linux Workspace Contest" was sent all the way from the Netherlands by a digital forensics student named Huseyin. He is also working as an intern at an IT-audit company and described Linux as the best OS to do research on."

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  • Advice for a distracted, unhappy, recently graduated programmer? [closed]

    - by Re-Invent
    I graduated 4 months ago. I had offers from a few good places to work at. At the same time I wanted to stick to building a small software business of my own, still have some ideas with good potential, some half done projects frozen in my github. But due to social pressures, I chose a job, the pay is great, but I am half-passionate about it. A small team of smart folks building useful product, working out contracts across the world. I've started finding it extremely boring. Boring to the extent that I skip 2-3 days a week together not doing work. Neither do I spend that time progressing any of my own projects. Yes, I feel stupid at the way I'm wasting time, but I don't understand exactly why is it happening. It's as if all the excitement has been drained. What can I do about it? Long version: School - I was in third standard. Only students, 6th grade had access to computer labs. I once peeked into the lab from the little door opening. No hard-disks, MS DOS on 5 1/2 inch floppies. I asked a senior student to play some sound in BASIC. He used PLAY to compose a tune. Boy! I was so excited, I was jumping from within. Back home, asked my brother to teach me some programming. We bought a book "MODERN All About GW-BASIC for Schools & Colleges". The book had everything, right from printing, to taking input, file i/o, game programming, machine level support, etc. I was in 6th standard, wrote my first game - a wheel of fortune, rotated the wheel by manipulating 16 color palette's definition. Got internet soon, got hooked to QuickBasic programming community. Made some more games "007 in Danger", "Car Crush 2" for submission to allbasiccode archives. I was extremely excited about all this. My interests now swayed into "hacking" (computer security). Taught myself some perl, found it annoying, learnt PHP and a bit of SQL. Also taught myself Visual Basic one of the winters and wrote a pacman clone with Direct X. By the time I was in 10th standard, I created some evil tools using visual basic, php and mysql and eventually landed myself into an unpaid side-job at a government facility, building evil tools for them. It was a dream come true for crackers of that time. And so was I, still very excited. Things changed soon, last two years of school were not so great as I was balancing preps for college, work at govt. and studies for school at same time. College - College was opposite of all I had wished it to be. I imagined it to be a place where I'd spend my 4 years building something awesome. It was rather an epitome of rote learning, attendance, rules, busy schedules, ban on personal laptops, hardly any hackers surrounding you and shit like that. We had to take permissions to even introduce some cultural/creative activities in our annual schedule. The labs won't be open on weekends because the lab employees had to have their leaves. Yes, a horrible place for someone like me. I still managed to pull out a project with a friend over 2 months. Showed it to people high in the academia hierarchy. They were immensely impressed, we proposed to allow personal computers for students. They made up half-assed reasons and didn't agree. We felt frustrated. And so on, I still managed to teach myself new languages, do new projects of my own, do an intern at the same govt. facility, start a small business for sometime, give a talk at a conference I'm passionate about, win game-dev and hacking contest at most respected colleges, solve good deal of programming contest problems, etc. At the same time I was not content with all these restrictions, great emphasis on rote learning, and sheer wastage of time due to college. I never felt I was overdoing, but now I feel I burnt myself out. During my last days at college, I did an intern at a bigco. While I spent my time building prototypes for certain LBS, the other interns around me, even a good friend, was just skipping time. I thought maybe, in a few weeks he would put in some serious efforts at work assigned to him, but all he did was to find creative ways to skip work, hide his face from manager, engage people in talks if they try to question his progress, etc. I tried a few time to get him on track, but it seems all he wanted was to "not to work hard at all and still reap the fruits". I don't know how others take such people, but I find their vicinity very very poisonous to one's own motivation and productivity. Over that, the place where I come from, HRs don't give much value to what have you done past 4 years. So towards the end of out intern, we all were offered work at the bigco, but the slacker, even after not writing more than 200 lines of code was made a much better offer. I felt enraged instantly - "Is this how the corp world treats someone who does fruitful, if not extra-ordinary work form them for past 6 months?". Yes, I did try to negotiate and debate. The bigcos seem blind due to departmentalization of responsibilities and many layers of management. I decided not to be in touch with any characters of that depressing play. Probably the busy time I had at college, ignoring friends, ignoring fun and squeezing every bit of free time for myself is also responsible. Probably this is what has drained all my willingness to work for anyone. I find my day job boring, at the same time I with to maintain it for financial reasons. I feel a bit burnt out, unsatisfied and at the same time an urge to quit working for someone else and start finishing my frozen side-projects (which may be profitable). Though I haven't got much to support myself with food, office, internet bills, etc in savings. I still have my day job, but I don't find it very interesting, even though the pay is higher than the slacker, I don't find money to be a great motivator here. I keep comparing myself to my past version. I wonder how to get rid of this and reboot myself back to the way I was in school days - excited about it, tinkering, building, learning new things daily, and NOT BORED?

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