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  • FreeBSD after motherboard replacement; should I have any concerns?

    - by cc
    So after three years my motherboard (Asus M2N-0MX) has died off. As I go shopping for i's replacement tomorrow I have a concern about the data that I currently have on the drives wtihin. I'm currently running BSD 6.2, and am wondering if there would be any concern with installing a new OS on that system, would it be better to jsut install the latest BSD version, and are their any pitfalls that I should watch for to make sure I don't end up losing 750gb's of data. The setup consists of the following(to the best of my knowledge): Pioneer DVD drive 3ware RAID card four 250gb SATA drives in RAID 5 config thanks to anyone that can offer some advice, or just to confirm if I am over thinking things.

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  • Migrating websites from IIS 6 to Apache Tomcat

    - by Cheeky
    I have 4 CFML coded websites currently running on Railo 3 (CFML engine using Resin) and IIS. I would like to upgrade my server and websites to Railo 4, which no longer uses Resin, but runs on Apache Tomcat. I have quite limited knowledge when it comes to web servers and I wanted to know what the process would be to move the websites from Railo 3 to Railo 4 without disrupting the live sites? Would there still be a need for IIS after the installation of Apache Tomcat? Does Tomcat run through IIS or are they two completely different things and would it be a complete move from IIS to Tomcat? If so, where would one then manage all those things one normally does in IIS, like default documents and host headers etc? Any advice would be extremely appreciated.

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  • [C#]How to change the class of an object dynamically?

    - by codemonkie
    Suppose I have a base class named Visitor, and it has 2 subclass Subscriber and NonSubscriber. At first a visitor is start off from a NonSubscriber, i.e. NonSubscriber mary = new NonSubscriber(); Then later on this "mary" subscribed to some services, and I want to change the type of "mary" to Subscriber. What is the conventional way to do that?

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  • Building a simple cart using object orientated PHP

    - by James
    I've built basic shopping carts with PHP before but in an attempt to get my feet wet with OOP, I'd like to try using that method. I come from a design background but do understand some basics of OOP but would like to see a tutorial or something simple I could base this on. The site is small and the cart functionality required is very standard. Can anyone offer a link to a decent tutorial or article on building a Cart with PHP OOP, a quick google didn't turn up anything decent.

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  • Python meta programming question

    - by orokusaki
    I have a meta class MyClass which adds an attribute to a class based on some of the properties of the class's methods. When I subclass MyClass I want it to still have that attribute, and append to the attribute's value based on the sub-class's methods (ie, sub-classing extends the same attribute that the base's meta creates.). Can this be done via the bases argument passed to __new__(cls, name, bases, dct)?

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  • C# unusual inheritance syntax w/ generics

    - by anon
    I happened upon this in an NHibernate class definition: public class SQLiteConfiguration : PersistenceConfiguration<SQLiteConfiguration> So this class inherits from a base class that is parameterized by... the derived class?   My head just exploded. Can someone explain what this means and how this pattern is useful? (This is NOT an NHibernate-specific question, by the way.)

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  • What is the best VCS Solution for Windows?

    - by Alix Axel
    My code base is getting quite big and it's difficult to organize all the different branches using just directories, I was wondering what would be a decent version control system for my own personal use that works (with little hassle) on Windows? PS: I'm not looking for hosted VCS like GitHub, SourceForge or Google Code.

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  • Stuck GhostScript processes, how to debug?

    - by Jonathan
    Having a problem with Ghostscript processes that don't end. This does not happen often, probably once every 3 weeks we see this issue with 1-3 processes. Running CentOS 6.4 on a VPS from Rackspace. We use PrinceXML to generate PDFs which uses GhostScript to handle fonts. Here's an image of top: http://i.stack.imgur.com/J9D7D.jpg As you can see those two processes are using a lot of resources, I haven't killed them yet in hopes someone can help me diagnose. I'm a developer not a server admin so I have a basic knowledge of *nix but no clue on how to fix this. Installed strace and ran it on each process with the following command: strace -p 20619 -s 80 -o gs.txt Left it for 5m, gs.txt is empty? Thanks in advance!

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  • have list of emails to be deleted from sheet A col D [on hold]

    - by Peta
    Thank you for your comments guys & now that CharlieRB has suggested "Match entire cell contents" I'll give it a better go. No I do not expect people to do my work for me & I'm sorry if it came over that way - just didn't know where to start. Would love some help please, I've limited VBA & function knowledge & I'm not sure where to start. If someone can point me in the right direction it would be appreciated. I have a list of email addresses on sheet "B" col A (but I could put them on sheet A if it would make it easier / faster) that I want deleted from sheet "A" col D (may be 2 or more occurences of the same email). I can't just record a find & delete macro and edit because for example [email protected] will also pick up [email protected] which I may not want deleted. thanks very much Peta

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  • Locking down firmware to keep stolen laptop from being formatted?

    - by Matt Ridge
    On the Mac laptops there are ways through the terminal to lock down the computer so that if someone tries to format the computer they won't be able to do it without the password. This way locks down the firmware. Is there a universal way to do the same thing on a PC? I know there are brands out there such as Samsung, Dell, etc that utilize different fimware types, and in turn will mean that their firmware will be locked down differently. That being said is there a "command code" that will allow you to lock the firmware to keep theives from formatting the hard drive and wiping out your data? I know a person who has time, and knowledge can get any password, and hopefully the person is smart enough to use another password to lock down the firmware, but that's not what I'm asking. I'm asking if it's possible, and if so how? Does the standard PC user require a 3rd party app, or can it be done through the command line? Or Terminal if you are on Linux?

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  • IPtables Traffic Quota - up and down

    - by Nick
    I've been trying to set up traffic quotas for users on a shared server and i believe [with my limited knowledge] that iptables --quota and ports which have been selected for each user [--dport] is the way to do this... iptables -A OUTPUT --dport 1,2,3,4... --quota 123412341234 -j ACCEPT iptables -A OUTPUT --dport 1,2,3,4... -j DROP I think something like this would work to limit the traffic [and reset every month] but its only for traffic going out. Is there something I could do to combine -A OUTPUT and -A INPUT into one quota? Or, is there a different method I could use to achieve the same thing more efficiently? OS is debian squeeze Thanks.

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  • Why MyModel.all works in Rails ?

    - by AntonAL
    Hi, i don't understand this little thing: Suppose, we have "Person" model class Person < ActiveRecord::Base end Why Person.all works ? Person.all.each { |p| do_something } This syntax tells us, that we have Person class-object instanciated somewhere ? Or is it some convention over configuration case ?

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  • How to Compute a Database Column in .NET

    - by Michael
    I have a Database named CarsType.accdb there are four fields in the data base Item_Name, Item_Num, Item_Qty, Item_Cost. I am able to get the database to display my data in VisualBasic but I am not sure how to get the total cost to appear in my label (lblTotalCost). I prefer doing it in VB versus writing in my access program. All I am wanting to do it multiply item_qty * Item_Cost How would I go about doing that?

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  • multithreading with database

    - by Darsin
    I am looking out for a strategy to utilize multithreading (probably asynchronous delegates) to do a synchronous operation. I am new to multithreading so i will outline my scenario first. This synchronous operation right now is done for one set of data (portfolio) based on the the parameters provided. The (psudeo-code) implementation is given below: public DataSet DoTests(int fundId, DateTime portfolioDate) { // Get test results for the portfolio // Call the database adapter method, which in turn is a stored procedure, // which in turns runs a series of "rule" stored procs and fills a local temp table and returns it back. DataSet resultsDataSet = GetTestResults(fundId, portfolioDate); try { // Do some local processing on the results DoSomeProcessing(resultsDataSet); // Save the results in Test, TestResults and TestAllocations tables in a transaction. // Sets a global transaction which is provided to all the adapter methods called below // It is defined in the Base class StartTransaction("TestTransaction"); // Save Test and get a testId int testId = UpdateTest(resultsDataSet); // Adapter method, uses the same transaction // Update testId in the other tables in the dataset UpdateTestId(resultsDataSet, testId); // Update TestResults UpdateTestResults(resultsDataSet); // Adapter method, uses the same transaction // Update TestAllocations UpdateTestAllocations(resultsDataSet); // Adapter method, uses the same transaction // It is defined in the base class CommitTransaction("TestTransaction"); } catch { RollbackTransaction("TestTransaction"); } return resultsDataSet; } Now the requirement is to do it for multiple set of data. One way would be to call the above DoTests() method in a loop and get the data. I would prefer doing it in parallel. But there are certain catches: StartTransaction() method creates a connection (and transaction) every time it is called. All the underlying database tables, procedures are the same for each call of DoTests(). (obviously). Thus my question are: Will using multithreading anyway improve performance? What are the chances of deadlock especially when new TestId's are being created and the Tests, TestResults and TestAllocations are being saved? How can these deadlocked be handled? Is there any other more efficient way of doing the above operation apart from looping over the DoTests() method repeatedly?

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  • SQLAlchemy: a better way for update with declarative?

    - by hadrien
    I am a SQLAlchemy noob. Let's say I have an user table in declarative mode: class User(Base): __tablename__ = 'user' id = Column(u'id', Integer(), primary_key=True) name = Column(u'name', String(50)) When I know user's id without object loaded into session, I update such user like this: ex = update(User.__table__).where(User.id==123).values(name=u"Bob Marley") Session.execute(ex) I dislike using User.__table__, should I stop worrying with that? Is there a better way to do this? Thanx!

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  • Why are email transfers between mail servers often not encrypted? Why aren't users warned about it?

    - by AmV
    Users can often choose if they want to access their email provider (such as Gmail) using a secure channel (e.g. using HTTPS). However, to the best of my knowledge, when it comes to mail-server-to-mail-server communications, most emails are still transferred in plain text and not encrypted, making it possible to anybody on the network to read their content. Are there any technologies that give the user some guarantees that his emails are sent securely from end to end ? Why not let the user know when encryption is not supported and let him choose if he wants his email to be still delivered ?

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  • What is the meaning of method class in the class definition in Ruby?

    - by Steven Xu
    I'm familiar with function definitions and variable declarations being in class definitions: public class MyClass { public int myvar; public void doSomething() { } } But what does it "mean" in Ruby when a method is actually called in the class definition? This happens amply in Rails, for instance: class User < ActiveRecord::Base has_many :posts end What exactly does this do (at a lower level than "it adds some methods to the class")? How would I implement such a function (e.g., one that mixes in some additional methods)?

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  • Rails send mail with GMail

    - by Danny McClelland
    Hi Everyone, I am on rails 2.3.5 and have the latest Ruby installed and my application is running well, except, GMail emails. I am trying to setup my gmail imap connection which has worked previously but now doesnt want to know. This is my code: # Be sure to restart your server when you modify this file # Uncomment below to force Rails into production mode when # you don't control web/app server and can't set it the proper way # ENV['RAILS_ENV'] ||= 'production' # Specifies gem version of Rails to use when vendor/rails is not present RAILS_GEM_VERSION = '2.3.5' unless defined? RAILS_GEM_VERSION # Bootstrap the Rails environment, frameworks, and default configuration require File.join(File.dirname(__FILE__), 'boot') Rails::Initializer.run do |config| # Gems config.gem "capistrano-ext", :lib => "capistrano" config.gem "configatron" # Make Time.zone default to the specified zone, and make Active Record store time values # in the database in UTC, and return them converted to the specified local zone. config.time_zone = "London" # The internationalization framework can be changed to have another default locale (standard is :en) or more load paths. # All files from config/locales/*.rb,yml are added automatically. # config.i18n.load_path << Dir[File.join(RAILS_ROOT, 'my', 'locales', '*.{rb,yml}')] #config.i18n.default_locale = :de # Your secret key for verifying cookie session data integrity. # If you change this key, all old sessions will become invalid! # Make sure the secret is at least 30 characters and all random, # no regular words or you'll be exposed to dictionary attacks. config.action_controller.session = { :session_key => '_base_session', :secret => '7389ea9180b15f1495a5e73a69a893311f859ccff1ffd0fa2d7ea25fdf1fa324f280e6ba06e3e5ba612e71298d8fbe7f15fd7da2929c45a9c87fe226d2f77347' } config.active_record.observers = :user_observer end ActiveSupport::CoreExtensions::Date::Conversions::DATE_FORMATS.merge!(:default => '%d/%m/%Y') ActiveSupport::CoreExtensions::Time::Conversions::DATE_FORMATS.merge!(:default => '%d/%m/%Y') require "will_paginate" ActionMailer::Base.delivery_method = :smtp ActionMailer::Base.smtp_settings = { :enable_starttls_auto => true, :address => "smtp.gmail.com", :port => 587, :domain => "XXXXXXXX.XXX", :authentication => :plain, :user_name => "XXXXXXXXXX.XXXXXXXXXX.XXX", :password => "XXXXX" } But the above just results in an SMTP auth error in the production log. I have read varied reports of this not working in Rails 2.2.2 but nothing for 2.3.5, anyone got any ideas? Thanks, Danny

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  • DD-WRT Router Can't hold a connection after initial setup...

    - by AC
    Struggeling with my new DDWRT router (Buffalo WZR-HP-G300NH) configuration. I configured it using one machine while comparing the settings on my existing Linksys WRT54GL on another machine. To the best of my knowledge, I've set it up the same way as my Linksys, but DDWRT has so many other options. After configuring it, I plugged it into the modem, VOIP device & my network. I see the phones come back online. However after a few minutes, it seems I lose the outbound connection (phones die and I can't get out over HTTP). What's confusing me is it works for a few minutes, then it fails. No idea what to look for. Ideas?

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  • prevent use of 'net user' command to change passwords on windows vista / xp

    - by guest
    hello the point is, if i'm logged in (and as almost every windows user, i've got an admin-account), and someone comes across my not locked pc, it is possible to change my password the pro-way through using: net user Admin %NEW_PASSWD% what can i do to prevent that, besides not being logged in as admin. i once saw a way, where the 'net user' command was substituted by a .bat file. so if you call 'net user Admin ...', it runs this .bat-file instead, which locks the notebook immediately. problem is, i honestly don't know how i could let windows substitute eg net.exe with a .bat-file. (too little windows knowledge) do you know any way how to do it? i'd appreciate it.

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  • create a bootable usb to automatic repair windows xp system32 files

    - by Edo Post
    Is it possible to create a script/live distro that replaces some system32 files? To explain it a bit more in details: There is a company that has multiple computers (think in 100/1000's) and they all are missing the same system32 files since the company's software removed it. The systems are distributed all over the world and are managed by "normal" people who don't have any knowledge about computers. I want to create a usb stick that i can mail to all those people which contains a script that executes when you boot the usb. this script should replace the missing system32 files without any user input is this possible, and if so how could i manage this?

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  • mvc redirect after delay

    - by gre3ns0ul
    Hi guys, I'm recently new in MVC technology and i'm with a difficult I have a UI to create a user, and when i submit the content and all content is valid i pass a message into Viewdata["INFO"] and return a View called Info with Viewdata Informing than the usar was sucefully created. But in this moment i want to Regist a some script than, after a one delay specified the client redirects automatically to the base page "Users". Any ideas to get the best way to do it?

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