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• Postfix installation error on Ubuntu

  - by kgpdeveloper

  How do I fix this error on Ubuntu 10.04 ? Reading package lists... Done Building dependency tree Reading state information... Done postfix is already the newest version. The following packages were automatically installed and are no longer required: libaprutil1-dbd-sqlite3 libcap2 apache2.2-bin libapr1 libaprutil1-ldap libaprutil1 php5-common Use 'apt-get autoremove' to remove them. 0 upgraded, 0 newly installed, 0 to remove and 1 not upgraded. 1 not fully installed or removed. After this operation, 0B of additional disk space will be used. Setting up postfix (2.7.0-1) ... Postfix configuration was not changed. If you need to make changes, edit /etc/postfix/main.cf (and others) as needed. To view Postfix configuration values, see postconf(1). After modifying main.cf, be sure to run '/etc/init.d/postfix reload'. Running newaliases newaliases: warning: valid_hostname: numeric hostname: 202002 newaliases: fatal: file /etc/postfix/main.cf: parameter myhostname: bad parameter value: 202002 dpkg: error processing postfix (--configure): subprocess installed post-installation script returned error exit status 75 Processing triggers for libc-bin ... ldconfig deferred processing now taking place Errors were encountered while processing: postfix E: Sub-process /usr/bin/dpkg returned an error code (1) Even if I reboot, the same error shows up. Thanks for the help..

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• How to delete files on a server doesn't support SSH. Only sFTP.

  - by kgpdeveloper

  So I can do this: sftp user@server These are the files https://gist.github.com/438a6b82aff3064a19c9 i need to delete files older than 60 days. Any way to automate this? find command doesn't work. deleting by wildcard doesn't work. Rsync is supported. How is it done with rsync?

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• No such file to load bundler error for Rails 3

  - by kgpdeveloper

  I have a Rails 3 app ready for staging. I haven't got a VPS host set up yet. As I was planning to have everything on shared host for the first few months. Problem: cd myapp bundle check result: The Gemfile's dependencies are satisfied Passenger error: Error message: no such file to load -- bundler Exception class: LoadError Frustrating thing about shared hosts is that I have to add these lines on config.ru: ENV['GEM_HOME'] = '/home/username/.gems' ENV['GEM_PATH'] = '$GEM_HOME:/usr/lib/ruby/gems/1.8' Still no luck. Same no such file to load bundler error appears. Has anybody got this working? Rails 3, Debian, shared host (dreamhost)? I could just go ahead and register on Slicehost/Fivebean but before I do, I'd like to know why that error is showing up. Thanks.

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• Attachment Fu error on MAC OS X and Ubuntu 9.10

  - by kgpdeveloper

  Greetings. I am encountering an issue with attachment fu and s3. Details: Production server - Ubuntu - imagemagick, rmagick aws-s3 gems are installed . Error starting app: vendor/plugins/attachment_fu/lib/technoweenie/attachment_fu/backends/s3_backend.rb:173:in `included': undefined method `symbolize_keys' for nil:NilClass (NoMethodError) See: http://github.com/technoweenie/attachment_fu/blob/master/lib/technoweenie/attachment_fu/backends/s3_backend.rb Has anyone encountered this? It seems that even with the config/amazon_s3.yml, the YAML file is not read.

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• Remove unncessary error raised by paperclip - filename is not recognized by the 'identify' command.

  - by kgpdeveloper

  I've been searching on how to solve this issue but could not find any real and working solution. User model: validates_attachment_content_type :avatar, :content_type = ['image/jpeg', 'image/pjpeg', 'image/x-png', 'image/png', 'image/gif'] Unnecessary error shows up when invalid file type is uploaded: Avatar /tmp/sample,23283,0.txt is not recognized by the 'identify' command. Server details: Ubuntu and Debian which identify results to /usr/bin/identify Specifying command path does not solve the issue: Paperclip.options[:command_path] = "/usr/bin" Any ideas? I looked at geometry.rb file and there seems to be something wrong with it. def self.from_file file file = file.path if file.respond_to? "path" geometry = begin Paperclip.run("identify", %Q[-format "%wx%h" "#{file}"[0]]) rescue PaperclipCommandLineError "" end parse(geometry) || raise(NotIdentifiedByImageMagickError.new("#{file} is not recognized by the 'identify' command.")) end Let me know if anyone has solved the same issue and how. Many thanks.

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• How to get exact start date and end date of every quarter of a given year in Ruby

  - by kgpdeveloper

  I need to get the exact start and end dates (month, day and year) of a given year. E.g., 2008 Jan. 1, 2008 Mar, 30, 2008 Any thoughts on how to do this? array = [2007, 2008, 2009, 2010] array.each do |a| #code to get array of date for a (year) end

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