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Best Year Ever

Written by Adam Schepis

Originally Published 2015-10-20 00:00:00 UTC

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Don't be a 10x developer. Be a force multiplier

Written by Adam Schepis

Originally Published 2015-07-22 13:15:00 UTC

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The Gloves are Off

Written by Adam Schepis

Originally Published 2015-03-25 16:38:00 UTC

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Keeping Pace

Written by Adam Schepis

Originally Published 2014-12-23 13:10:00 UTC

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A Fresh Coat of Paint

Written by Adam Schepis

Originally Published 2014-10-09 11:09:00 UTC

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Integrating Heroku addon SSO in Rails using Devise

Written by Adam Schepis

Originally Published 2012-04-30 14:24:28 UTC

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Adding to a Devise model after creation (Rails 3.1)

Written by Adam Schepis

Originally Published 2011-09-26 08:36:06 UTC

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Why I Go Home: A Developer Dad's Manifesto

Written by Adam Schepis

Originally Published 2011-09-15 14:31:54 UTC

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A Script to Update Riak Config Files

Written by Adam Schepis

Originally Published 2011-08-25 08:42:08 UTC

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Break the Build!

Written by Adam Schepis

Originally Published 2011-07-19 13:20:09 UTC

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Drinking from a Firehose

Written by Adam Schepis

Originally Published 2011-06-27 06:36:24 UTC

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Setting up a 3 Node Riak Cluster with EC2 Cluster Compute Instances

Written by Adam Schepis

Originally Published 2011-06-06 13:49:02 UTC

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Nostalgia be damned! I'll never go back to spinning hard drives.

Written by Adam Schepis

Originally Published 2011-05-27 12:54:11 UTC

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Of Heroes and Pit Crews: Bringing techniques from the surgical world to software

Written by Adam Schepis

Originally Published 2011-05-16 20:10:20 UTC

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Still Bullish on the Cloud

Written by Adam Schepis

Originally Published 2011-05-14 20:33:14 UTC

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Oops! Got Popular.

Written by Adam Schepis

Originally Published 2011-05-02 10:07:44 UTC

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I'm Adam, and i'm a recovering Singleton addict.

Written by Adam Schepis

Originally Published 2011-05-02 06:17:32 UTC

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Productivity: Go for the quick win!

Written by Adam Schepis

Originally Published 2011-04-19 06:18:09 UTC

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Development Complexity vs. Operational Complexity

Written by Adam Schepis

Originally Published 2011-04-05 06:43:50 UTC

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Local. Ad-hoc. Relevant.

Written by Adam Schepis

Originally Published 2011-03-24 20:57:29 UTC

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Offline testing of network driven apps

Written by Adam Schepis

Originally Published 2011-03-24 20:27:11 UTC

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Thoughts on Yobongo after a night stranded in SFO.

Written by Adam Schepis

Originally Published 2011-03-17 20:29:20 UTC

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One More Reason to Fight Against Walled Gardens

Written by Adam Schepis

Originally Published 2011-03-11 20:53:58 UTC

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Taking a screenshot of a section of a UIView

Written by Adam Schepis

Originally Published 2011-03-06 20:32:33 UTC

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Handling many UIAlertViewDelegate callbacks in the same class

Written by Adam Schepis

Originally Published 2011-02-28 16:52:54 UTC

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Pure-FTPd + Passive FTP on Amazon EC2

Written by Adam Schepis

Originally Published 2011-02-23 22:36:15 UTC

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In the never-ending search for the perfect blog theme I decided to get the WordPress automatic theme install stuff working on the EC2 instance that hosts this blog.  This involved setting up and FTP server on the instance.

A quick search in the package manager found pure-ftpd, so i installed the package.  I googled around to figure out how to configure pure-ftpd.  This was a snap, and my test FTP session worked!  However, when i sent to install a WP theme it always failed!  What gives?!

After turning on verbose logging in pure-ftpd and tailing /var/log/messages I saw something like this at the end of the log:

pure-ftpd: (wordpress@127.0.01) [DEBUG] Command [pasv] [] pure-ftpd: (wordpress@127.0.0.1) [DEBUG] Command [list] [-la /var/www/htdocs/myblog]

I had to do a bit more googling to brush up on my rusty knowledge of the <a FTP protocol, but what was happening here is that the client (WordPress theme installer) is failing to list the files in the folder because it has activated Passive Mode.

The first step was to edit my EC2 Instance to allow the ports specified in my pure-ftpd.conf file. You can find these values out by looking for this in your conf file:

PassivePortRange 50000 50100

So I updated my EC2 instance to allow these ports, but it was still failing! I furiously search the internet for a clue and finally found one in a blog post about setting up proftpd on EC2. The one thing i was missing was forcing the second connection made by the client in Passive Mode to use my EC2 instance's public IP address.  The fix was a simple as uncommenting and editing the following line in pure-ftpd.conf and restarting the daemon:

# Force an IP address in PASV/EPSV/SPSV replies. - for NAT. # Symbolic host names are also accepted for gateways with dynamic IP # addresses. ForcePassiveIP 127.0.0.1

Once this was set up themes, plugins, and updates all started to install perfectly! Hopefully anyone else who runs into this issue finds this post and avoids the headache that it caused me!

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Lets try this again...

Written by Adam Schepis

Originally Published 2011-02-23 02:45:15 UTC

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