SEED Project #ubuntu #virtual #machine #host


Lab Environment Setup

  • There is no need for a physical lab space.
  • All the lab activities can be carried out on students’ computers .
  • We provide VM images, and all the labs have been tested in the images.
  • All software used in the lab environment is open-source and free .

Virtual Machine Software (VirtualBox)

Install the free VirtualBox. Our pre-built VM images can be used by both VMWare and VirtualBox. Here are some instructions for VirtualBox:

  • How to run our pre-built VM image with VirtualBox .
  • Network Configuration in VirtualBox for SEED labs (“NAT Network”). This is a newly added network type in VirtualBox (since version 4.3 in 2014); it basically combines the NAT adapter and Host-only adapter into one adapter called “NAT Network”. We will be using this adapter for all our SEED labs, instead of the previous “NAT + Host-only” option. You need to make sure that your VirtualBox is updated to the most recent version.
  • Loading Multiple VMs into VirtualBox: Problems and Solutions .

Pre-built Virtual Machine Images (Ubuntu)

Currently, we have three images (Ubuntu9.11, Ubuntu11.04, and Ubuntu12.04). Most labs can be conducted in any of these images. Some labs depend on a particular image, and in that case, the dependence will be clearly stated in the lab’s web site. If you do not see such a statement, assume no dependence. All the labs that work in Ubuntu 11.04 also work in Ubuntu12.04, so there is no need to use Ubuntu11.04 any more. We have already stopped supporting Ubuntu11.04.

  • ( New ) This is a revised Ubuntu 12.04 image (revised in Jaunary 2016). In this image, we added the support for several of the newly developed labs.
    • Download the image from the following server (the MD5 checksum of the file is 6ec9c429a2f4a9163530ada20f0621dc):
      • Main server
      • Backup server
    • User Manual. includes the account and password information, list of software and servers installed, and configuration.
    • VM Customization. Some labs require multiple VMs; to help you easily identify which VMs you are in, you can do some simple customization. You need to download this file ( ) as well
  • This image, built in September 2013, is based on Ubuntu 12.04. This VM officially replaces SEEDUbuntu11.04. All the labs that work in SEEUbuntu11.04 also work in this new VM.
    • Download the image from one of the following servers (the MD5 checksum of the file is 50a3ba75ddd49b6647c2411d68edceea):
      • Server at Syracuse University .
    • User Manual. includes the account and password information, list of software and servers installed, and configuration.
    • Unzip the image, and follow our VirtualBox instruction to run it in VirtualBox.
  • (replaced by SEEDUbuntu12.04). This image, built in August 2011, is based on Ubuntu 11.04.
    • Not available any more
    • User Manual. includes the account and password information, list of software and servers installed, and configuration.
  • SEEDUbuntu9_August_2010.tar.gz. This image, built in August 2010, is based on Ubuntu 9.11.
    • Not available any more
    • User Manual. includes the account and password information, list of software and servers installed, and configuration.

For Minix-based labs

Some of the SEED labs (not many) are based on the Minix operating system. You should get the Minix 3 VM image from its official web site.

Copyright Wenliang Du, Syracuse University

Cheap Dedicated Servers #cheap #dedicated #servers,dedicated #server,dedicated #server #hosting,,dedicated #server #host,cheap #dedicated


All dedicated server plans come standard with the following:

  • 2 IP addresses (up to 8 free IPs upon request).
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  • Full 100mbit burstable connection.

We offer a variety of upgrades for our cheap dedicated server hosting plans. These add-ons may be selected during checkout. To place an order for an add-on, you must first select one of the dedicated serers above.

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Reprise Hosting is a web host providing you with absolutely unbeatable value on cheap dedicated servers and lease-to-own cPanel dedicated servers .


Contact Us

For the fastest response, please use our client portal or the contact form at the top of this page. Mailed correspondence can be sent to:

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  • Las Vegas, NV 89119
  • 1.877.HOST.839

Minecraft Server Hosting #minecraft #server #hosting, #minecraft #hosting, #minecraft #server #host, #minecraft


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Our dedicated team understands the need for fast and reliable service when it comes to your minecraft server hosting. We’re here to provide top notch service and support, and we’re always happy to answer any questions you might have.

Friendly Support

If you ever have any questions or issues with any of our hosting solutions, just let us know! Our team is ready to answer and resolve any questions and issues you might have. If you’re not a customer and have any questions, we’ll be happy to answer them!

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We believe there’s no such thing as a “perfect” minecraft hosting company. That’s why we’re constantly working on improving our services and control panel to ensure that every customer is receiving the best service for the money they pay.

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Enterprise Grade Hardware, High Performance Server Hosting

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The servers we use to host Minecraft servers are configured with hand picked enterprise grade hardware to make them run as efficiently and reliably as possible.

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Every server we build are equipped with high speed solid state drives (SSDs). This allows for not only fast performing servers, but also reduces lag for players.

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Our Mission

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value=””>Home value=”#”>Why? value=”/hosting-provider/why-one-provider”> Why OneProvider? value=”/hosting-provider/onepanel”> OnePanel™ value=”/dedicated-servers-locations”>Dedicated servers value=”/dedicated-servers-locations”> All Server Locations value=”/dedicated-servers-in-north-america”> North America value=”/dedicated-servers-in-europe”> Europe value=”/dedicated-servers-in-asia”> Asia value=”/dedicated-servers-in-south-and-central-america”> South and Central America value=”/dedicated-servers-in-oceania”> Oceania value=”/dedicated-servers-in-africa”> Africa value=”/dedicated-servers/dedicated-server-promotions”>Promotions! value=”/dedicated-servers/dedicated-server-promotions”> Current Promotions value=”/dedicated-servers/clearance-deals”> Clearance Deals value=”/onecloud”>OneCloud™ value=”/onecloud/ssd-virtual-servers”> SSD Virtual Servers value=”/onecloud/students”> OneCloud for Students value=”#”>Complex solutions value=”/complex-dedicated-hosting-solutions/complex-solutions”> Complex Solutions value=”/complex-dedicated-hosting-solutions/colocation”> Colocation value=”#”>Support value=”/support/support-center”> Support Center value=”/support/vip-support”> VIP Support value=”/support/frequently-asked-questions”> F.A.Q. value=”/about-us”>About us value=”/about-us/terms-of-service”> Terms of Service value=”/about-us/acceptable-usage-policy”> Acceptable Usage Policy value=”/about-us/service-level-agreement”> SLA value=”/about-us/privacy-policy”> Privacy Policy

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How Does PHP Updates by Your Web Host Impact your WordPress Sites


How Does PHP Updates by Your Web Host Impact your WordPress Sites

Recently one of our users contacted us about a notice they received from BlueHost (one of the recommended WordPress hosting providers) about upgrading to PHP 5.4. We thought it would be beneficial to cover how this affects WordPress users and website owners. In this article, we will explain how PHP updates by your web host impact your WordPress sites. We will also discuss the things you can do to avoid any conflicts or downtime on your website.

A PHP update by your web host is supposed to go smoothly, but it can also go terribly wrong. It all depends on your web host, and how they configure their servers. This is why we recommend our users to choose the best WordPress hosting, so they know that there are top-notch engineers who are looking after those servers. Choosing an unreliable web host for your WordPress site can cause unexpected downtime during or after the update and there is pretty much nothing you can do about it except switching to a better host.

WordPress and PHP Updates

WordPress is developed using the open source programming language PHP. At the time of writing this article, WordPress requires PHP version 5.2.4 or greater. The current stable version available for PHP is 5.5.7.

Most shared hosting providers are currently offering PHP version 5.4.* installed on their servers. Some web hosts may even allow you to change your PHP version from their control panel. There are various reasons for not using the bleeding edge and the newest stable versions of PHP by web hosts, but the most common reason is that the latest versions can sometimes break some PHP applications. However, they also don t want to stay far behind. Currently PHP 5.4.* is used by pretty much most shared WordPress hosting providers.

Things You Need To Do When Your Host Updates PHP

Your web host is probably already hosting thousands of WordPress site. They will take every precaution they can to make sure that everything goes smoothly and customers don t feel any glitch in the service. The notice you have received allows you to be informed about the update and keep a look out to see if anything goes wrong. Although it is unlikely that this update will break things, it is always good to have a fallback plan.

First of all, we always recommend our users to regularly backup WordPress sites. If you do not have an automatic backup solution in place like BackupBuddy. VaultPress. or BackWPup. then it is time to install one of them or at least create a manual backup of your website.

After backups, the next thing you need to do is to make sure that you are running the latest version of WordPress. Also make sure that all your plugins and themes are up-to-date. Go to Updates screen and install any updates available.

WordPress itself and most popular WordPress plugins will not be affected by PHP update. However, it is possible that some plugin may stop working. If a plugin on your site has stopped working due to a PHP update, then you need to contact the plugin author for support or find an alternative.

What to Do if a PHP Update Breaks your WordPress Site?

There are very little chances of a PHP update breaking your WordPress site. However, with the abundance of free and paid plugins, a single line of poor code can result into an error. The first thing you need to do is make sure that it is not a plugin or theme causing this error. To do that deactivate all your WordPress plugins and switch to a default WordPress theme.

If this does not solve your issue, then contact your web host s support team. There is a good chance that the issue you are facing will already be in their notice, and they will be able to assist you.

If your web host is unable to help you out, then try to install a fresh copy of WordPress and then restore your WordPress site from backup.

If none of this helps, then perhaps it is time to change your WordPress Hosting.

We hope that this guide helped you understand how PHP updates by your web host impact your WordPress site. For feedback and questions please leave a comment below.

Carole Rains says:

The PHP update by Bluehost broke the checkout page on my WordPress site. Items added to the cart did show up in the cart page at checkout, but the cart icon in my header said the cart was empty. In addition, when the button for enter credit card info is clicked, it triggers an error message that says invalid shipping method. Bluehost agreed to switch me back to PHP 5.2 temporarily, but said at some (undetermined) point in the near future they will switch to the new version regardless.
Any suggestions on how I can fix this?

Marilyn Lesniak says:

When I updated my pho to the newest versuon, I only got 1 problem. When I open posts and click on tags I receive this message.:

How do I fix this? Thx!

Jan Reilink says:

(as sent via Twitter)
It s not PHP updates that break WordPress websites or plugins. It s not updating WordPress (or plugins) that breaks when PHP is updated BTW, the WordPress core and most plugins I use run perfect with PHP 5.5.

Most hosting providers will keep an older PHP version available for customers to temporarily switch back to when something goes wrong. Where I work, 5.4.* is the default and both 5.5* and 5.3* are available. Version 5.3 until PHP drops the support for security updates.
So, always check with your hosting provider first if that is possible before getting angry with your hosting provider

For as far as I know, a lot of hosting companies configured PHP in a way that lets you set up custom configuration settings through .user.ini files: When all error reporting and/or displaying is disabled, you can easily enable the logging and/or displaying of errors:

log_errors = On
error_log = /path/to/your/logfile.txt
display_errors = On

This will ease the fixing of older, poorly maintained plugins.

Another item to watch out of is that plugins and other applications that have been protected with older versions of Ioncube might stop working when the PHP version is changed. The developer of the plugin or application needs to update their Ioncube protection first.

Once you make the change, you need to make a list of all the plugins applications you are using and go through then one by one to check for functionality with the new php.

That said, I am running bleeding edge PHP with the latest WP and apart from applications that were protected with old Ioncube versions, everything is running smoothly.

I ve noticed my host allow me to choose what version of PHP I want to use for each site hosted on a shared account. After reading this I will use that option with caution.

E-commerce – Canvas Host #e-commerce, #e-commerce #consulting, #sustainable #e-commerce, #canvas #host #e-commerce



Does your business want to accept online payments from your customers? Do you need a shopping cart system? Or are you looking for a custom, end-to-end e-commerce service? Canvas Host can help. Our e-commerce services are designed for your specific needs.

As a full-service e-commerce provider, Canvas Host is well-versed at developing and implementing e-commerce services from simple payment forms to complete shopping cart systems.

The following explains key aspects of our e-commerce development process. We invite you to contact us to learn about all our e-commerce services.

What is E-commerce?

E-commerce is a general term for any type of business transaction that takes place online.

E-commerce is usually handled through a shopping cart system in which customers select products and purchase them using a charge card. There are many variations to this model depending on how a company does business. For example, a business that only sells downloadable software can use a simple cart system. A company with an inventory and that ships physical products will need a more complicated e-commerce Web site to connect with its supply chain and shipping services.

What do I need to have e-commerce?

There are three key components to most e-commerce web sites.

1. Cart system or payment form the application or interface on your Web site that enables your customers to purchase products or pay for services. Commercially-available opensource cart systems include osCommerce and ZenCart, which are ready-to-install and can save you thousands of dollars compared to having a system built from scratch.

2. Compatible merchant account a bank account through a third-party service that routes payments directly into your business account. This can be as simple as a PayPal account, or it can be a professional service such as through The merchant service used with your Web site will largely depend on the type of cart system you have chosen because not all services are compatible with all of the carts.

3. PCI-Compliant web hosting plan and SSL Encryption PCI DSS compliance, enforced by most merchant gateways requires that your Web site be secured through a compliant Web hosting environment and all data transactions be encrypted with SSL to protect your customers credit card numbers and other personal data against identity theft or abuse. Our PCI Compliant hosting plans are designed to help you pass PCI DSS compliance, and our affordable SSL certificate options mean you can rely on us to provide you a complaint, secure hosting environment in which to operate your e-commerce business.

How much does a merchant account cost?

Depending on the type of merchant service you may need to pay the provider a modest monthly fee, a set percentage and surcharge on every transaction, or a combination of the two.

For a service like Pay Pal there is no monthly fee. You simply pay a set percentage (about 2.7%) any time someone pays for a service or sends you money. The money will sit in a separate account, and you will need to manually transfer it to your own bank account. For most companies dealing in only a handful of transactions per month, this makes the most sense as there is no overhead for simply having the account.

For complete merchant services, we recommend IonPOS Merchant Services with whom we are formally partnered. An ethical merchant service provider affiliated with, IonPOS offers a full range of services, such as cart integration, fraud detection, and POS swipe machines, and can automatically route funds directly into your bank account for you.

Full merchant accounts cost a monthly fee of $20-25 and a predetermined rate of 2.0-2.5% based on the number and type of transactions you process every month. For larger companies or those dealing with a high number of purchases each month, this type of merchant account can prove more beneficial because there are more services, greater fraud prevention, and automation capabilities for recurring charges.

What about using a free cart system?

There are many opensource cart systems available online. We currently offer several dozen carts via Softaculous in our shared hosting environment. You can learn more about these carts by visiting our Shopping Cart Systems page. These systems are widely-supported in the web development community, and many optional modules are available to extend and customize a system for your specific needs without the expense of building add-ons from scratch.

It does still take time to customize the applications (branding, user interface, configuring the cart, etc.), but generally speaking you can save thousands of dollars using a pre-built system and having it customized for your specific needs.

What if I need a custom e-commerce service?

We have built many e-commerce sites over the years, including custom carts, payment forms, and other custom modules. If your business model calls for a custom e-commerce system, we will help you evaluate your options and propose an efficient, affordable application designed precisely for your business.

How long does it take to create an e-commerce web site?

The average time for development of an e-commerce site is six business weeks. This includes interactive planning sessions with you, analysis of your business requirements, selection of the appropriate system, customization and integration of that system into a new Web site, importing your products, optimizing the templates for search engine friendliness, and training you in the use of the new site.

How can I get started?

We invite you to contact us or call us at (800) 574-4299 to learn more about e-commerce, the types of services we provide, and how we can assist you with your e-commerce needs.

Dedicated Web Hosting with Linux or FreeBSD #dedicated #servers, #dedicated #server, #web


Linux Dedicated Server Features.

  • – Dell PowerEdge R Series
  • – CentOS Linux with Full Root Access (64-bit with 32-bit Compatibility)
  • cPanel with WHM Control Panel
  • – Apache Web Server, MySQL, PHP, Perl, Python, Ruby (on Rails), FFMpeg Support
  • – Secured Server with IPTables Firewall
  • – Safe Harbor Certified

WHM Control Panel Features.

  • Latest WHM Control Panel with Multi-language Availability
  • Complete Control of all Server Settings, Services, and Accounts
  • – Fantastico Installation Management
  • – Reseller Management
  • – Brandable Control Panel with your Company Logo

cPanel Control Panel Features.

  • Latest cPanel Control Panel
  • – Website Statistics: AWStats, Webalizer, Raw Log Manager, Referrer and Error Logs
  • Fantastico. Instant Shopping Carts, Blogs, Portals, Forums, Counters, Formmail
  • – Password Protected Directories and Custom Error Pages
  • – Web Based File Manager, Hotlink Protection. IP Deny Manager, Redirect URL

Programming and Database Features.

  • Unlimited MySQL Databases with phpMyAdmin Access
  • – Programming Language: CGI, Fast CGI, PHP 5, Ruby on Rails, Perl, Python, SSI
  • – Programming Modules: Curl, CPAN, GD Library, ImageMagick
  • – System Management: SSH Access and Cron Job Scheduling
  • – FrontPage Extensions

Email Features.

  • Unlimited POP3 Email Accounts with SMTP
  • – WebMail Access: Horde, SquirrelMail, RoundCube
  • – Receive your email to your phone via IMAP Support
  • – Prevent spam with SpamAssassin
  • Unlimited Autoresponders, Mail Forwards, Email Aliases

Top of the Line Network.

  • – Datacenter: Colombus, Ohio
  • – Multiple Backbone Uplinks with a 1000 mbit port speed per server
  • Redundant CISCO Core Routers
  • – Multiple Layers of Network Security
  • Multiple Bandwidth Providers (Level3, NTT, AT ?>

OneProvider – Plesk Panel #hosting, #dedicated #server, #dedicated #hosting #server, #server #hosting


Parallels Plesk Panel allows you to set up new websites, reseller accounts, e-mail accounts, and DNS entries through a web-based interface. You can create client and site templates, which predetermine resource-allocation parameters for the domains and/or clients.

Parallels Plesk Panel for Linux/UNIX supports multiple POSIX platforms, including Debian, Fedora, FreeBSD. Red Hat Linux, SUSE and Ubuntu. Parallels Plesk Panel for Windows supports Windows Server 2003 and Windows Server 2008 operating systems.

Game server hosting

Security and stability

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Add a service name to file #host #name #server, #add #a #service


Add a service name to tnsnames.ora file

Oracle Database Tips by Donald BurlesonConsulting

When the Oracle DBA creates their tnsnames.ora file to define remote databases they often specify the host name of the foreign server that contains the remote Oracle database.

For example, a entry in the tnsnames.ora file for a remote database might look like this. In the example, we have added the service name berlin to our tnsnames.ora file:

berlin =
(HOST = hun)
(PORT = 1521)
(CONNECT_DATA = (SID = kraus))

Here we see a TNS service name of berlin. which defines a connection to a remote server named hun that contains an Oracle database named kraus. When a remote connection request is made from the UNIX server, the /etc/host file is accessed to get the IP address for the hum server.

From the listing below, we see that the hum server is located at In sum, the /etc/host file is used to isolate the IP address from the tnsnames.ora file. If the IP address should ever change, the UNIX systems administrator only needs to change the IP address in one place.

root cat /etc/hosts hum dopey

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