Crucial Paradigm

Login  as root and run the following command:

wget http://prdownloads.sourceforge.net/webadmin/webmin-1.350-1.noarch.rpm

Once finished run:

rpm -U webmin-1.350-1.noarch.rpm

The rest of the install will be done automatically to the directory /usr/libexec/webmin, the administration username set to root and the password to your current root password. You should now be able to login to Webmin at the URL http://localhost:10000/ .

Webmin install complete. You can now login to https://hostname.domain:10000/
as root with your root password.

NOTE: the default login and password is your root and root password. this is the same login you used with you ssh to your server or whatever your root password is, so your login will be like this:

Username: root
Password: xxxx (what ever your root password is)

You can list installed packages with yum by running the following command:

yum list installed

SYDNEY, Australia (December 8, 2009) —Crucial Paradigm Australia, a leading provider of Managed Web hosting and Virtual Private Servers for small to medium sized businesses, announced today it has completed an overhaul of its entire core network, adding significantly more traffic capacity and the capability to quickly scale the network to a larger size.

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While trying to change the password, if you get the following error:
“ERROR: Invalid session ID detected”

As a resolution to this issue, please follow the steps mentioned as under:

1. Follow the path Admin CP> Templates> Manage Templates> Expand All

2. You will see some of your templates in Red [in this case only the 'changepassword' template is responsible for this issue]

3. Please restore the templates in red by following the below mentioned path:

Admin CP -> Templates -> Manage Templates -> click on the template you need to restore -> Restore

4. Admin CP >> Diagnostics >> Rebuild Cache

Try changing the password from Support Center >> My Account

In an effort to try and cut down the manual labour in burning in new hardware, we have been working with RIP linux on a USB key.  The idea is to fully automate a read and write to all drives in the system, and then automatically run memtest.  This way we can just plug the USB key into the system, start the script and it will perform and record the burn in tests to the USB key which we can review after a few days (burn in tests can take up to a few days  depending on the hardware!).

To do this we needed to modify the boot menu on the RIPLinux USB key, and set memtest to start automatically after 10 seconds of no input.    This can be done by doing the following:

Under:
LABEL Boot Memory Tester!

Enter:
MENU DEFAULT

Under:
DEFAULT menu.c32

Enter:
TIMEOUT 100

A script can then placed to run automatically run when RIPLinux boots into the standard kernel.  The script will complete the hard drive tests, then it will reboot the server automatically and the memtest will run.

If you have ever done a mail server migration and you save a copy of your emails on the mail server, you will know what it is like to receive 1000s of duplicate emails.

Here are some utilities which will help you find and remove duplicate emails from your inbox after this has happened!

Thunderbird: https://addons.mozilla.org/en-US/thunderbird/addon/956

Outlook: http://www.office-addins.com/-outlook-addins/duplicate-email-remover.html

We’ve started something new in the office, it helps with motivation and we believe it could be the next big thing in the corporate world! Forget 4 quadrant training courses or ideologies presented by ex CEO’s! We ask that you try our system first, the FAIL system!

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An interesting service to check your wireless security strength is http://www.wpacracker.com/index.html

The service started by the same person who revealed the possibility in of hacking SSL.

The service runs on a 400 CPU cloud, and you have the option to either purchase full power of the cluster, or half power.  The service will search through a database of 135 million dictionary based passwords.

By default Windows is not optimised for high speed broadband connections. This can cause slow access when accessing international sites (from Australia) or even when accessing local sites. There are a number of applications which can adjust TCP/IP settings in Windows to improve performance. These applications generally modify the registry on Windows, so use them at your own risk.

I decided to see what sort of performance gains this could render by testing this on my work desktop.  I have not adjusted these settings in the past.

The first application I tested was DrTCP, the application was easy to download and did not require and  installation, however required me to manually modify the settings.  I wasn’t sure what to adjust, so I decided to find an application which would do the guessing work for me!

Eventually I came across SG TCP Optimizer, like DrTCP, TCP Optimizer is free.  I downloaded and was able to run the application without having to install anything.  After opening the application I just selected the speed that our office ADSL 2+ connection syncs at, and then selected the optimal settings radio button at the bottom of the page, and hit apply changes.  After doing this I rebooted my computer.

The Results:

Local performance increased marginally (5-12%) on large file downloads, however interntional performance increased significantly.  Average download speeds from US sites used to be 100KB/s, and now I’m easily hitting 330+KB/s on single threaded downloads.  This modification was well worth the effort!

Gzip can reduce page size by an impressive amount, especially for high traffic sites. We have optimised some of customers sites receiving high traffic and have easily been able to reduce bandwidth usage by 60-80%.

If you have zlib compiled into PHP and you are running PHP then the easy way to enable gzip compression is to add the following line to your .htaccess file:

php_value output_handler ob_gzhandler

This will only enable gzip compression on PHP, and not on css, javascript, html, etc files – this needs to be done in the apache config file.