Open the terminal (Ctrl+Alt+T) and run this command (root privileges is required):

sudo iptables -A INPUT -p tcp -d 0/0 -s 0/0 –dport 3389 -j ACCEPT

Replace 3389 with the port you want to open.

How do you close the ports?

Simply replace ACCEPT with DROP as follows:

sudo iptables -A INPUT -p tcp -d 0/0 -s 0/0 –dport 3389 -j DROP

Open a terminal window in Ubuntu:

Log in as your username and enter your password when requested.

Switch to super user root, as follows:

sudo -s (enter)
the result is:
root@yourhostname

Now set-up a password for the administrative user named ‘root’ as follows:

passwd
(enter password twice as requested)

After downloading and installing DeepOfix Email Server (including GNU/Linux – Squeeze – Operating System), upon first boot it shows “missing operating system – press any key to reboot” on Dell Dimension 2400 with new 160GB Seagate PATA 100 drive and 2GB RAM.  I installed it 6 times, after wiping the hard drive and removing partitions and building MBR, etc., to no avail.

So, I installed Ubuntu Desktop 12.04.02 on the same hard drive.  It booted on the first try and runs like a charm.

Some type of software driver on the DeepOfix must be lacking.  Before installing the new IDE 100 PATA drive, I first installed DeepOfix on a new 160GB SATA drive attached to a local SATA PCI add-on card, but the installed O/S would not boot.  DeepOfix detected and installed itself to the SATA drive, but, upon first restart, the PCI SATA controller and SATA drive were not supported by this particular linux operating system.

I was really looking forward to using the Easy Push Manager graphical interface on the Mail Server.  Although, I didn’t actually like the idea that the email server came pre-configured with Squirrel Mail web mail rather than Roundcube web mail interface.

I will search for an alternative email server to run on Ubuntu.  Maybe iRedMail open source email server will work.  Stay tuned.

The brand new Western Digital 1TB drive that I bought had developed a harmonic squeal which began about 2 days after I started installing software on it. It sounded like a high-pitched tuning fork.  Before returning this WD drive to the store for a refund, I would want to clone it sector-by-sector to a new Seagate 1TB drive. I had installed Linux Ubuntu 12.04.02 64-bit O/S on the WD drive and had also installed Zpanel web hosting control panel, with Apache web server, MySQL database server, Roundcube Webmail and Postfix / Dovecot email SMTP, POP3 and IMAP mail protocols. I needed to clone the WD onto the new Seagate replacement drive because I didn’t want to make a fresh install of everything (Ubuntu and the Zpanel package) going onto the new Seagate. So, I looked for a good cloning solution.

EaseUS To Do 3.0 booted nicely from CD, but it reported that it could not clone the entire disk-at-once (going disk-to-disk all in one step) because EaseUS reported that the source drive (WD) was larger than the destination drive (Seagate). The source disk had more than one partition. Instead of trying to clone each disk partition separately from source to target, I decide to look for a better cloning solution than EaseUS.

I downloaded the 64-bit ubuntu-based version of Gparted Live, which I read that I could use to resize the source partitions on the WD drive, and hopefully to make them a little smaller (combined) so that a cloning program might allow me to do disk-to-disk at-once, or at least clone the separate partitions one at a time without exceeding the target Seagate total disk size.

The operating partition on the WD drive was quite empty. Probably only 10 percent of the partition actually contained files. I thought that I could use the Gparted Live CD to shrink the operating partition on the WD, and then try to use Clonezilla cloning software to clone the WD partitions (one at a time) over to the new empty Seagate Drive. Little did I know that the Gparted might not be necessary for my particular job.

When I finished burning the Clonezilla Live AMD-64 (64-bit) ISO onto a blank CD (creating a boot utility CD), I decided to try again cloning disk-to-disk at-once without first using Gparted to shrink the OS partition on the WD source drive. CLONEZILLA WORKED!!! It actually reported that the WD source drive was exactly 1.0 Terabyte in total size and that the Seagate drive was 1.2 Terabytes in total size!!! The source drive was actually larger than the destination drive!!! This meant that there was absolutely no reason to resize and shrink any partitions on the WD source drive. EaseUS was wrong. Maybe the free version of EaseUS that I was using had a 1 TB limit and the new Seagate exceeded that self imposed limit! Who knows? Not sure. But, I love Clonezilla. It actually rebuilt the Grub2 boot loader and re-sized (expanded) the operating partition on the target drive to utilize the extra 0.2 terabytes of space located on the destination Seagate drive.

After cloning, I booted to the Seagate OS and everything works just fine — so far.

First, in Windows, click Start, Administrative tools, and Internet Information Services (IIS) Manager.  Then select your server name (the second item in the left column under Start Page).

At this point you should probably create a new application pool separate from the default application pool.  Right click on Application Pools, and select Add Application Pool . . .

Insert a friendly name for this new Application Pool.  Select the version of ASP.net framework that may be required to run the site / application, or select No Managed Code if no .Net framework is required (such as if your website functions on serving PHP pages. Leave Managed pipeline mode as Integrated, check the checkbox to Start Application Pool Immediately, and click OK button.

Right click on the name of the new Application Pool that you just created, and select Advanced Settings.

Click on “ApplicationPoolIdentity” (which is the value across from the Identity field shown below) and then select Network Service from the pop-up box / list that appears.  Click OK twice to confirm this change.

You can apply the new Application Pool to a new or existing website, or to an new “Application” that you create by converting a major sub-directory path of a Website.  To establish an Application and apply the new Application Pool to that new Application, just right click a sub-directory of a website and select “Convert to Application” from the drop-down menu.

Click the select button to change from the DefaultAppPool and select the new AppPool you just created.  Note that the physical path to this sub-directory is already set.  Then, click both OK buttons to apply and exit these property boxes.

Let me know via comment if this works for you, and if you have anything that I should add to or change in this Article. Thank you.