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	<title>ITBLOG &#187; Network</title>
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	<link>http://itblog.ws</link>
	<description>&#34;All technology should be assumed guilty until proven innocent.&#34;</description>
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		<title>Internet Without Wires: How Far Can It Go?</title>
		<link>http://itblog.ws/2011/02/internet-without-wires-how-far-can-it-go/</link>
		<comments>http://itblog.ws/2011/02/internet-without-wires-how-far-can-it-go/#comments</comments>
		<pubDate>Wed, 23 Feb 2011 23:00:52 +0000</pubDate>
		<dc:creator>Martin</dc:creator>
				<category><![CDATA[Network]]></category>
		<category><![CDATA[Wireless]]></category>
		<category><![CDATA[2G]]></category>
		<category><![CDATA[3G]]></category>
		<category><![CDATA[4G]]></category>
		<category><![CDATA[Australia]]></category>
		<category><![CDATA[internet]]></category>
		<category><![CDATA[LTE]]></category>
		<category><![CDATA[portable]]></category>
		<category><![CDATA[telstra]]></category>
		<category><![CDATA[web]]></category>
		<category><![CDATA[wireless]]></category>

		<guid isPermaLink="false">http://itblog.ws/?p=239</guid>
		<description><![CDATA[New developments in the industry show that there is much movement with regards to wireless technologies and networks. From U.S. President Obama&#8217;s talk about wireless, to Telstra in Australia expanding their UMTS/HSDPA/HSUPA aka 3G networks to the latest 4G and LTE (Long Term Evolution) technologies, the landscape of wireless internet access is by no means [...]]]></description>
			<content:encoded><![CDATA[<p>New developments in the industry show that there is much movement  with regards to wireless technologies and networks. From U.S. President  Obama&#8217;s talk about wireless, to Telstra in Australia expanding their  UMTS/HSDPA/HSUPA aka 3G networks to the latest 4G and LTE (Long Term  Evolution) technologies, the landscape of wireless internet access is by  no means a stagnant market.</p>
<p>Australia&#8217;s Exetel CEO John Linton  now reveals that 35% of his customers use 5G or less per month and that  their new 3G plans of $25 for 5G without a land line through Optus is now  on par with many of it&#8217;s DSL offerings but are unique in that it is  inherently portable. This means that for approximately the same price as  a fixed line DSL connection, you can take your internet with you  wherever you go and it will still seem like you are home.</p>
<p>Vividwireless,  after operating for a time in and around Perth, are now trialling their  LTE offerings in Sydney, Melbourne and Brisbane. Vividwireless were one  of the few wireless providers to introduce and unlimited downloads plan  last year.</p>
<p>Of course, many users will have to purchase or upgrade  existing wireless modems, access stations and routers to take advantage  of the difference frequencies that the various systems use. Current 2G  and 3G use 850,900,1900 and 2100Mhz, but with the freeing up of existing  frequencies from old analogue television, a whole lot more room is now  at our disposal for more carefree and portable internet solutions.</p>
<p>Is  the future of internet access all wireless or physical connection via  fibre? Perhaps it is a mixture of both. One idea is to connect all the  back-end infrastructure via cables and convert most areas into wifi  hotspots, therefore still providing convenient wireless access, at cheap  bulk data prices via fibre/xDSL.</p>
<p>Whatever the answer is, one thing is sure; we as consumers win this challenge for finding the best internet access.</p>
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		<title>Is Cloud Computing Just A Dream?</title>
		<link>http://itblog.ws/2011/02/is-cloud-computing-just-a-dream/</link>
		<comments>http://itblog.ws/2011/02/is-cloud-computing-just-a-dream/#comments</comments>
		<pubDate>Wed, 16 Feb 2011 23:00:31 +0000</pubDate>
		<dc:creator>Martin</dc:creator>
				<category><![CDATA[Android]]></category>
		<category><![CDATA[Computers]]></category>
		<category><![CDATA[Google]]></category>
		<category><![CDATA[Mobile]]></category>
		<category><![CDATA[Network]]></category>
		<category><![CDATA[OS]]></category>
		<category><![CDATA[Social Networking]]></category>
		<category><![CDATA[Wireless]]></category>
		<category><![CDATA[Amazon]]></category>
		<category><![CDATA[Cloud Computing]]></category>
		<category><![CDATA[FSF]]></category>
		<category><![CDATA[google]]></category>
		<category><![CDATA[Privacy]]></category>
		<category><![CDATA[Richard Stallman]]></category>
		<category><![CDATA[Security]]></category>

		<guid isPermaLink="false">http://itblog.ws/?p=242</guid>
		<description><![CDATA[The basic idea of cloud computing is an extension to the &#8220;dumb terminal&#8221; idea from the 1980&#8242;s, that is, there is one master server or place where all the data is kept and all the processing is done and give small dedicated &#8220;thin client&#8221; machines (basic PC systems with very streamlined features and specifications) a [...]]]></description>
			<content:encoded><![CDATA[<p><img class="alignleft size-full wp-image-246" src="http://itblog.ws/wp-content/uploads/2011/02/cloud_computing.jpg" alt="Cloud Computing" width="250" height="250" />The basic idea of cloud computing is an extension to the &#8220;dumb  terminal&#8221; idea from the 1980&#8242;s, that is, there is one master server or place where all the data is kept and all the processing is done and give  small dedicated &#8220;thin client&#8221; machines (basic PC systems with very  streamlined features and specifications) a connection to this to perform  their work.</p>
<p>Current examples of everyday web-based services that  are now finding themselves in the envelope of the cloud computing  description are services such as GMail.</p>
<p>Now with virtualisation overtaking the workplace, the hardware  idea from the past becomes software, and software-as-a-service (SaaS)  and platform-as-a-service (PaaS) seems like the logical next step:  desktop machines, laptops, netbooks and other dedicated remote access  clients such as smartphones provide access to the data externally, but  everything else is in the server room and data center. Sounds like every  network and system administrator&#8217;s maintenance dream right? But some  are a little critical of the purported promised land of networked  computing.</p>
<p>Richard Stallman, Founder of the Free Software  Foundation, said recently likened cloud computing to a trap and that  users are leaving their data and privacy in the hands of companies they  do not control and they cannot be guaranteed data integrity or user  privacy. &#8220;Do your own computing on your own computer with your copy of a   freedom-respecting program. If you use a proprietary program or  somebody  else&#8217;s Web server, you&#8217;re defenseless. You&#8217;re putty in the  hands of  whoever developed that software,&#8221; he said.</p>
<p>Proponents of  cloud computing, such as Google, say that cloud computing has many  benefits. They believe that netbooks used for cloud computing are secure  as third-party programs cannot be installed, which means viruses and  spyware will have more difficulty in making life difficult for users.</p>
<p>However the path to future computing runs one thing is for sure, aspects of cloud computing today are here to stay.</p>
<div class="tweetthis" style="text-align:left;"><p> <a target="_blank" class="tt" href="http://twitter.com/home/?status=Is+Cloud+Computing+Just+A+Dream%3F+http%3A%2F%2Ftinyurl.com%2F4dhqur3" title="Post to Twitter"><img class="nothumb" src="http://itblog.ws/wp-content/plugins/tweet-this/icons/en/twitter/tt-twitter-micro3.png" alt="Post to Twitter" /></a> <a target="_blank" class="tt" href="http://digg.com/submit?url=http://itblog.ws/2011/02/is-cloud-computing-just-a-dream/&amp;title=Is+Cloud+Computing+Just+A+Dream%3F" title="Post to Digg"><img class="nothumb" src="http://itblog.ws/wp-content/plugins/tweet-this/icons/en/digg/tt-digg-micro3.png" alt="Post to Digg" /></a> <a target="_blank" class="tt" href="http://www.facebook.com/share.php?u=http://itblog.ws/2011/02/is-cloud-computing-just-a-dream/&amp;t=Is+Cloud+Computing+Just+A+Dream%3F" title="Post to Facebook"><img class="nothumb" src="http://itblog.ws/wp-content/plugins/tweet-this/icons/en/facebook/tt-facebook-micro3.png" alt="Post to Facebook" /></a> <a target="_blank" class="tt" href="http://stumbleupon.com/submit?url=http://itblog.ws/2011/02/is-cloud-computing-just-a-dream/&amp;title=Is+Cloud+Computing+Just+A+Dream%3F" title="Post to StumbleUpon"><img class="nothumb" src="http://itblog.ws/wp-content/plugins/tweet-this/icons/en/su/tt-su-micro3.png" alt="Post to StumbleUpon" /></a></p></div>]]></content:encoded>
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		<title>NBN to announce huge increase in speed</title>
		<link>http://itblog.ws/2010/12/nbn-to-announce-huge-increase-in-speed/</link>
		<comments>http://itblog.ws/2010/12/nbn-to-announce-huge-increase-in-speed/#comments</comments>
		<pubDate>Wed, 15 Dec 2010 09:34:14 +0000</pubDate>
		<dc:creator>Damien</dc:creator>
				<category><![CDATA[Broadband]]></category>
		<category><![CDATA[Network]]></category>
		<category><![CDATA[broadband]]></category>
		<category><![CDATA[network]]></category>

		<guid isPermaLink="false">http://itblog.ws/?p=199</guid>
		<description><![CDATA[The national broadband network will enable speeds of one gigabit per second on its fibre optic network, 100 times faster than originally planned, the company building the network will announce today. The speed is significantly faster than the maximum speeds promised by the opposition in its broadband policy, and highlights the growing gap between what [...]]]></description>
			<content:encoded><![CDATA[<p><img src="http://itblog.ws/wp-content/uploads/2011/02/755677-gillard-nbn.jpg" alt="Gillard NBN" title="gillard-nbn" width="650" height="366" class="aligncenter size-full wp-image-200" />The national broadband network will enable speeds of one gigabit per second on its fibre optic network, 100 times faster than originally planned, the company building the network will announce today.</p>
<p>The speed is significantly faster than the maximum speeds promised by the opposition in its broadband policy, and highlights the growing gap between what a fibre-based broadband network can offer compared with existing technology.</p>
<p>It has also emerged that NBN Co told staff to ignore political attacks on the company by the opposition, after its finance spokesman, Andrew Robb, called it a &#8221;stodgy&#8221; bureaucracy, labelled its staff &#8221;talentless&#8221; and promised to close it down if elected to government.</p>
<p>One gigabit per second is 17,500 times faster than a dial-up connection and 167 times faster than the average ADSL broadband connection. &#8221;I am trying to make sure people understand what it is that NBN Co is going to deliver,&#8221; its chief executive, Mike Quigley, said.</p>
<p>Increasing the speed would not add to the $43 billion construction price tag and the fibre could be upgraded to provide even faster speeds in coming years, Mr Quigley said.</p>
<p>The faster capability was already built into the equipment which the company was installing in homes and Mr Quigley said he decided to enable it after discussions with internet providers and the competition watchdog.</p>
<p>Telecommunications industry figures have given support to parts of the Coalition&#8217;s policy even as others decry the lack of investment and &#8221;vision&#8221; in Tuesday&#8217;s $6 billion announcement.</p>
<p>The opposition communications spokesman, Tony Smith, announced the Coalition would spend $750 million on a fixed broadband optimisation grants program to overcome technical restrictions that stop 1 million households from using ADSL, the most common technology for broadband services.</p>
<p>The decision received praise from industry figures, who said it was a cost effective way to offer timely broadband to significant numbers of people using existing infrastructure.</p>
<p>&#8221;If you&#8217;re looking at an incremental approach to getting towards high-speed broadband, that&#8217;s the way to do it,&#8221; said an industry consultant, Kevin Morgan.</p>
<p>An Ovum broadband consultant and former Liberal policy adviser, David Kennedy, said mobile phone carriers, in particular Vodafone Hutchison Australia, had spare spectrum capacity in regional areas and could offer wireless broadband.</p>
<p>Ian Birks, the chief executive of the Australian Information Industry Association, said the Coalition&#8217;s plan showed a lack of commitment to broadband, but was &#8221;reasonable&#8221; within the fiscal restraints imposed.</p>
<p>&#8221;I don&#8217;t think the Coalition policy recognises the vision for a digital future in Australia, that&#8217;s what makes it disappointing,&#8221; he said.</p>
<p>NBN Co has been instructed to replace Australia&#8217;s copper telephone network with fibre optic cable to 93 per cent of the population and high-speed wireless and satellite to remote areas.</p>
<p>NBN Co would offer unlimited download capacity at one gigabit per second wholesale rates to retail internet providers, but service provider Internode said it was not reasonable to give consumers unlimited downloads.</p>
<p>Information Source <a href="http://www.smh.com.au/technology/technology-news/nbn-to-announce-huge-increase-in-speed-20100812-1205s.html" target="_blank">smh.com.au</a></p>
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		<title>Cisco ASA 5510 Firewall : Basic Configuration Tutorial</title>
		<link>http://itblog.ws/2010/03/cisco-asa-5510-firewall-basic-configuration-tutorial/</link>
		<comments>http://itblog.ws/2010/03/cisco-asa-5510-firewall-basic-configuration-tutorial/#comments</comments>
		<pubDate>Mon, 08 Mar 2010 06:30:06 +0000</pubDate>
		<dc:creator>Damien</dc:creator>
				<category><![CDATA[Computers]]></category>
		<category><![CDATA[Network]]></category>
		<category><![CDATA[cisco]]></category>
		<category><![CDATA[firewall]]></category>

		<guid isPermaLink="false">http://itblog.ws/?p=84</guid>
		<description><![CDATA[Continuing our series of articles about Cisco ASA 5500 firewalls, I&#8217;m offering you here a basic configuration tutorial for the Cisco ASA 5510 security appliance. This device is the second model in the ASA series (ASA 5505, 5510, 5520 etc) and is fairly popular since is intended for small to medium enterprises. Like the smallest [...]]]></description>
			<content:encoded><![CDATA[<p><img class="alignright" title="Cisco ASA" src="http://itblog.ws/wp-content/uploads/cisco_ASA5510.jpg" alt="Cisco ASA" width="200" height="200" />Continuing our series of articles about Cisco ASA 5500 firewalls, I&#8217;m offering you here a basic configuration tutorial for the Cisco ASA 5510 security appliance. This device is the second model in the ASA series (ASA 5505, 5510, 5520 etc) and is fairly popular since is intended for small to medium enterprises. Like the smallest ASA 5505 model, the 5510 comes with two license options: The Base license and the Security Plus license. The second one (security plus) provides some performance and hardware enhancements over the base license, such as 130,000 Maximum firewall connections (instead of 50,000), 100 Maximum VLANs (instead of 50), Failover Redundancy, etc. Also, the security plus license enables two of the five firewall network ports to work as 10/100/1000 instead of only 10/100.</p>
<p>Next we will see a simple Internet Access scenario which will help us understand the basic steps needed to setup an ASA 5510. Assume that we are assigned a static public IP address 100.100.100.1 from our ISP. Also, the internal LAN network belongs to subnet 192.168.10.0/24. Interface Ethernet0/0 will be connected on the outside (towards the ISP), and Ethernet0/1 will be connected to the Inside LAN switch.</p>
<p>The firewall will be configured to supply IP addresses dynamically (using DHCP) to the internal hosts. All outbound communication (from inside to outside) will be translated using Port Address Translation (PAT) on the outside public interface. Let&#8217;s see a snippet of the required configuration steps for this basic scenario:</p>
<p>Step1: Configure a privileged level password (enable password)<br />
By default there is no password for accessing the ASA firewall, so the first step before doing anything else is to configure a privileged level password, which will be needed to allow subsequent access to the appliance. Configure this under Configuration Mode:</p>
<p>ASA5510(config)# enable password mysecretpassword</p>
<p>Step2: Configure the public outside interface<br />
ASA5510(config)# interface Ethernet0/0<br />
ASA5510(config-if)# nameif outside<br />
ASA5510(config-if)# security-level 0<br />
ASA5510(config-if)# ip address 100.100.100.1 255.255.255.252<br />
ASA5510(config-if)# no shut</p>
<p>Step3: Configure the trusted internal interface<br />
ASA5510(config)# interface Ethernet0/1<br />
ASA5510(config-if)# nameif inside<br />
ASA5510(config-if)# security-level 100<br />
ASA5510(config-if)# ip address 192.168.10.1 255.255.255.0<br />
ASA5510(config-if)# no shut</p>
<p>Step 4: Configure PAT on the outside interface<br />
ASA5510(config)# global (outside) 1 interface<br />
ASA5510(config)# nat (inside) 1 0.0.0.0 0.0.0.0</p>
<p>Step 5: Configure Default Route towards the ISP (assume default gateway is 100.100.100.2)<br />
ASA5510(config)# route outside 0.0.0.0 0.0.0.0 100.100.100.2 1</p>
<p>Step 6: Configure the firewall to assign internal IP and DNS address to hosts using DHCP<br />
ASA5510(config)# dhcpd dns 200.200.200.10<br />
ASA5510(config)# dhcpd address 192.168.10.10-192.168.10.200 inside<br />
ASA5510(config)# dhcpd enable inside</p>
<p>The above basic configuration is just the beginning for making the appliance operational. There are many more configuration features that you need to implement to increase the security of your network, such as Static and Dynamic NAT, Access Control Lists to control traffic flow, DMZ zones, VPN etc.</p>
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		<title>Step-By-Step Configuration Guide For The Cisco Asa 5505 Firewall</title>
		<link>http://itblog.ws/2010/03/step-by-step-configuration-guide-for-the-cisco-asa-5505-firewall/</link>
		<comments>http://itblog.ws/2010/03/step-by-step-configuration-guide-for-the-cisco-asa-5505-firewall/#comments</comments>
		<pubDate>Sat, 06 Mar 2010 06:30:26 +0000</pubDate>
		<dc:creator>Damien</dc:creator>
				<category><![CDATA[Computers]]></category>
		<category><![CDATA[Network]]></category>
		<category><![CDATA[cisco]]></category>
		<category><![CDATA[firewall]]></category>

		<guid isPermaLink="false">http://itblog.ws/?p=79</guid>
		<description><![CDATA[The Cisco ASA 5505 Firewall is the smallest model in the new 5500 Cisco series of hardware appliances. Although this model is suitable for small businesses, branch offices or even home use, its firewall security capabilities are the same as the biggest models (5510, 5520, 5540 etc). The Adaptive Security technology of the ASA firewalls [...]]]></description>
			<content:encoded><![CDATA[<p><img class="alignleft" title="Cisco ASA" src="http://itblog.ws/wp-content/uploads/ciscoasa5505.jpg" alt="Cisco ASA" width="150" height="150" />The Cisco ASA 5505 Firewall is the smallest model in the new 5500 Cisco series of hardware appliances. Although this model is suitable for small businesses, branch offices or even home use, its firewall security capabilities are the same as the biggest models (5510, 5520, 5540 etc). The Adaptive Security technology of the ASA firewalls offers solid and reliable firewall protection, advanced application aware security, denial of service attack protection and much more. Moreover, the performance of the ASA 5505 appliance supports 150Mbps firewall throughput and 4000 firewall connections per second, which is more than enough for small networks.</p>
<p>In this article I will explain the basic configuration steps needed to setup a Cisco 5505 ASA firewall for connecting a small network to the Internet. We assume that our ISP has assigned us a static public IP address (e.g 200.200.200.1 as an example) and that our internal network range is 192.168.1.0/24. We will use Port Address Translation (PAT) to translate our internal IP addresses to the public address of the outside interface. The difference of the 5505 model from the bigger ASA models is that it has an 8-port 10/100 switch which acts as Layer 2 only. That is, you can not configure the physical ports as Layer 3 ports, rather you have to create interface Vlans and assign the Layer 2 interfaces in each VLAN. By default, interface Ethernet0/0 is assigned to VLAN 2 and it&#8217;s the outside interface (the one which connects to the Internet), and the other 7 interfaces (Ethernet0/1 to 0/7) are assigned by default to VLAN 1 and are used for connecting to the internal network. Let&#8217;s see the basic configuration setup of the most important steps that you need to configure.</p>
<p>Step1: Configure the internal interface vlan<br />
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ASA5505(config)# interface Vlan 1<br />
ASA5505(config-if)# nameif inside<br />
ASA5505(config-if)# security-level 100<br />
ASA5505(config-if)# ip address 192.168.1.1 255.255.255.0<br />
ASA5505(config-if)# no shut</p>
<p>Step 2: Configure the external interface vlan (connected to Internet)<br />
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ASA5505(config)# interface Vlan 2<br />
ASA5505(config-if)# nameif outside<br />
ASA5505(config-if)# security-level 0<br />
ASA5505(config-if)# ip address 200.200.200.1 255.255.255.0<br />
ASA5505(config-if)# no shut</p>
<p>Step 3: Assign Ethernet 0/0 to Vlan 2<br />
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ASA5505(config)# interface Ethernet0/0<br />
ASA5505(config-if)# switchport access vlan 2<br />
ASA5505(config-if)# no shut</p>
<p>Step 4: Enable the rest interfaces with no shut<br />
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ASA5505(config)# interface Ethernet0/1<br />
ASA5505(config-if)# no shut<br />
Do the same for Ethernet0/1 to 0/7.</p>
<p>Step 5: Configure PAT on the outside interface<br />
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ASA5505(config)# global (outside) 1 interface<br />
ASA5505(config)# nat (inside) 1 0.0.0.0 0.0.0.0</p>
<p>Step 6: Configure default route towards the ISP (assume default gateway is 200.200.200.2)<br />
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ASA5505(config)# route outside 0.0.0.0 0.0.0.0 200.200.200.2 1</p>
<p>The above steps are the absolutely necessary steps you need to configure for making the appliance operational. Of course there are much more configuration details that you need to implement in order to enhance the security and functionality of your appliance, such as Access Control Lists, Static NAT, DHCP, DMZ zones, authentication etc.<br />
Download the best configuration tutorial for any <a href="http://www.cisco-tips.com/ciscoasaebook.php">Cisco ASA</a> 5500 Firewall model Here.</p>
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