Netflow Developments » external http://blog.netflowdevelopments.com The latest and greatest happenings in the world of Science, Technology and everything else Geek Mon, 06 Feb 2012 02:48:41 +0000 en hourly 1 http://wordpress.org/?v=3.3.1 Postfix not accepting external emails http://blog.netflowdevelopments.com/2011/12/28/postfix-not-accepting-external-emails/ http://blog.netflowdevelopments.com/2011/12/28/postfix-not-accepting-external-emails/#comments Thu, 29 Dec 2011 03:46:13 +0000 admin http://blog.netflowdevelopments.com/?p=793 So another fun little learning lesson today with the new mail server..  I could send and receive emails internally no problem(sending from me@me.com to you@me.com) but the moment I wanted to send something from another mail server to the new one well it wasn’t having any of it.

As with all things there are always a million reasons for something to go wrong and mine was reason #445,002 :)  I ended up reading a thread that had enough similarities as me to open my eyes to what was going on.  I had told postfix to have the smtp server on port 10587 for security reasons and in the end the MTA wasn’t setup to connect to that port.. Booerns.  In the end I just said ‘stuff it’ and put it back to the default settings, so now my smtp server is running on the default 587 port and everything is working peachy keen.  So if this is happening to you, go into your /etc/postfix/master.cf and anywhere you changed smoething like:

smtp inet n – n – - smtpd

into:

10587 inet n – n – - smtpd

go and change it back to the way it was and see if that resolves your issue

 

]]> http://blog.netflowdevelopments.com/2011/12/28/postfix-not-accepting-external-emails/feed/ 0 How to use php includes inside of a wordpress post? http://blog.netflowdevelopments.com/2011/04/01/how-to-use-php-includes-inside-of-a-wordpress-post/ http://blog.netflowdevelopments.com/2011/04/01/how-to-use-php-includes-inside-of-a-wordpress-post/#comments Fri, 01 Apr 2011 15:34:25 +0000 admin http://blog.netflowdevelopments.com/?p=643 Unfortunately traditional Server side includes don’t work for loading external pages on remote domains/servers, or at least not that i’ve been able to find so far.  After a bit of research I’ve found two separate solutions to this:

1.)

The first solution is the more secure solution and is specifically for scenarios where you, the admin, or registered users of your blog only will be able to access the php includes.  You need to install the wordpress plugin: php-execution and then put the following code into your post:

<?
$a = file_get_contents(“http://www.somedomain.com/file.php”);
echo ($a);
?>

2.)

This next example is far less secure as php execution will be available to everyone hitting your website.  You will need to install the Exec-PHP plugin for this and insert the following code into your post:

<?php $a = file_get_contents(‘http://www.somedomain.com/file.php’); echo ($a); ?>

 

Hope that helps!

]]> http://blog.netflowdevelopments.com/2011/04/01/how-to-use-php-includes-inside-of-a-wordpress-post/feed/ 0 How to mount a USB External NTFS Hard Drive that won’t mount in Ubuntu http://blog.netflowdevelopments.com/2010/02/19/how-to-mount-a-usb-external-ntfs-hard-drive-that-wont-mount-in-ubuntu/ http://blog.netflowdevelopments.com/2010/02/19/how-to-mount-a-usb-external-ntfs-hard-drive-that-wont-mount-in-ubuntu/#comments Fri, 19 Feb 2010 07:53:44 +0000 admin http://blog.netflowdevelopments.com/?p=419 So I was having a problem with my external USB hard drive lately.  The USB connectors on this LG laptop are a bit shady so things get disconnected if you bump them and this would happen with my hard drive.. The problem being that if the Hard drive was disconnected like this and not properlyy unmounted that it wouldn’t come back up 50% of the time when I plugged it back in.

It would show up when I run fdisk -l and in dmesg but when I try to mount the drive it would return with the error ‘special device does not exist’.  The only way I could get it back online was to reboot the machine, until now! :)

I tried installed usbmount and pmount but neither fixed the problem.

After some research I discovered the MAKEDEV command.  So what I tried was to run MAKEDEV from inside of /dev/ and it would give me an error: “.udevdb or .udev presence implies active udev.  Aborting MAKEDEV invocation.”

So I went on and looked into /dev/.udev/ and found a /failed/ directory which had a blocked file in there referring to the hard drive that wasn’t mounting.  For some reason I ran the MAKEDEV [device] command here and VIOLA, it worked.  Apparently it just needs to be run in a directory that doesn’t have a .udev subdirectory in it

So for me the command was MAKEDEV /dev/sdd and it created sdd1 through sdd10.  Not sure what the other ones are for but I was able to mount sdd1 properly and access my hard drive.  I mean this is a pretty backwards work around but I can access my hard drive without rebooting, so I’m good to go!

So to sum it up, if you have a device that isn’t mounting properly but you can see the device with #sudo fdisk -l then:

  1. try creating a temporary directory for your new mount points
  2. Then run MAKEDEV [device] inside of that directory.  So if the partition your trying to mount is say /dev/sda1 then you’ll want to run MAKEDEV /dev/sda and hopefully that gives you access without needing to reboot.
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