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Archive for the ‘Internet’ Category

Net Filtering Trial Has No Criteria for Success

June 4th, 2009 Dave W No comments

As reported in the Sydney Morning Herald, the Australian government has admitted that it has not defined ANY criteria to judge the success or failure of it’s limited Net Filtering trial.

Following on from the leaking of the site blacklist, the inclusion of legal sites on the list, and the scaling back of the size of the banned list to be used for the trial, this is another demonstration of the lack of forethought and clear goals for this policy.

The news has been roundly condemned by Coalition and Green party members.

Read the full story here

Categories: Internet, News Tags: ,

Broadband – Government Goes Own Way

April 7th, 2009 Dave W No comments

The Federal Government has scrapped the controversial broadband tender process and has decided instead to form a new public/private company to build a national network as an infrastructure project.

Making the announcement today, Mr Rudd described the $43 billion fibre-to-the-home scheme as the single largest infrastructure project in the country’s history and said it would create 25,000 jobs a year during construction, with 37,000 in the busiest year of construction.

“It is the most ambitious, far-reaching, and long-term nation-building infrastructure project ever undertaken by an Australian government,” said Mr. Rudd.

The network will connect 90 per cent of homes to a network with speeds of up to 100 megabits per second, with the remainder connected at 12 megabits a second.

The Government would hold a majority share in the company, which will also be part-owned by the private sector, and will invest $43 billion into the project over eight years.

The Government will then gradually sell off it’s share of the company five years after the project is completed.

Mr Rudd said the company would inject a “new competitive force” into the telecommunications market.

“Today we draw a line under a decade of policy area and neglect,” he said.

“This solves once and for all the core problem created when the previous prime minister privatised Telstra a decade ago without ever resolving the conflict of a private monopoly owning the network infrastructure and dominating the retail market.”

Mr Rudd said the broadband tender process was being scrapped because none of the submitted bids offered value for money to the taxpayer, but said anyone was open to invest in the new company.

Telstra was dropped from the bidding process last December after the Government rejected its proposal.

Categories: Internet, News, Optus, Telstra Tags: ,

Down Them All – Firefox Download Manager Add-On

October 8th, 2008 Dave W No comments

The inbuilt Firefox download manager is a gem in itself, but recently I came across Down Them All.

Down them all is a Firefox add-on and it is a download manager/accelerator. The website claims up to 400% faster downloads. It’s a bit like download accelerator pro in that it uses up maximum bandwidth when downloading large files.

I used Down Them All to download a few 700mb files, including the Ubuntu operating system from an Optus mirror. The results were excellent: using a 1.5mbps connection, I was averaging about 150kb/sec throughout the download.

I have since used it to download 5gig of data today, and it has saved me plenty of time.

What’s more, it integrates itself, so when you right click and save as, DTA will automatically appear as one of the options. Selecting it will open the download manager.

DTA allows for easy management of your downloads, including: pausing, resuming, limiting, and prioritising your downloads.

DTA can be found via: https://addons.mozilla.org/en-US/firefox/addon/201

Guest post by Raja Devanathan of MrFeedback.net

Categories: Firefox, Internet, Reviews Tags: , ,

NT Hacker faces jail

October 8th, 2008 Dave W No comments

The man accused of plunging the Northern Territory government’s computer network into chaos has been committed to stand trial.

OVer 10,000 thousand public servants were locked out of their computers in May after the NT government’s network was hacked and employee details and passwords deleted. Services affected included Hospitals, Prisons and the Supreme Court.

David Mcintosh has been charged with 13 computer related offences – with a maximum possible jail term of 10 years.

The prosecution alleges that the man was a disgruntled employee of a contract company that conducted IT services for the government computer system. It is alleged he used a colleague’s log-in and password to access the network and cause the widespread disruption.

After a two day committal hearing, Magistrate Sue Oliver today ordered McIntosh stand trial in the Supreme Court.

He has been remanded in custody and the case has been adjourned until December. 

 

Categories: Internet, News Tags: ,

Chrome, Google and Firefox

September 19th, 2008 Dave W No comments

A couple of snippets concerning Google’s new Chrome browser:

Pop-ups not shown, but Advertisers billed?

It seems like Chrome’s new Pop-Up hider still loads the Pop-Up ads, but doesn’t present them to the viewer.

This is somewhat different to how traditional Pop-Up blockers work, in that they actually prevent the ad from loading. Our understanding of that approach is that this means the Advertiser wouldn’t be charged, as their ad is not loading.

The situation with Chrome may well be different, as the ad is being loaded but not shown, which could lead to advertisers still being charged for Pop-Ups that no one will ever see.

For Pop-Up haters that’s fine, but if true and if Chrome grabs a significant portion of the Browser market,  then this could well lead to changes in advertising methods.
 

Google promotes Firefox, oops!

In a very public spirited gesture, it seems that Google (via YouTube at least) is still advertising Firefox, even after the launch of Chrome.

 

Google advertising Firefox

Whether this is an oversight on Google’s part, or a requirement of their agreement with Mozilla we don’t know. Is Google still the default search engine bundled with Firefox installs, as per their agreement (which was re-negotiated earlier this year)? If so, how much longer will this arrangment last?
 

Thanks to Raja of MrFeedback.net for the heads up about the Firefox ad in Youtube.

 

Categories: Firefox, Google, Internet Tags: , ,

Privacy mode to become the Browser Standard

September 17th, 2008 Dave W No comments

This is a guest post contributed by Raja of MrFeedback

We have seen privacy introduced in Internet Explorer 8 (beta 2 version) & Google Chrome, and Firefox has recently announced that private browsing will be incorporated into their browser in version 3.1 – currently you can get private browsing mode by downloading the Stealther 1.06 plugin available through Download.com, and there are similar solutions available from Mozilla’s add on website.

The concept behind Privacy mode is simple – any record of your browsing history is discarded once you close the browser session in IE or Google Chrome. Firefox plan to take this feature a few steps further and will have:

  • no autofill for passwords
  • all cookies will be discarded after browsing
  • all downloads in Download Manager will be discarded after browsing
  • Unlike IE, you won’t even be able to tell if you’re surfing in Private Mode. IE has a neon indicator to announce the activation of private mode. Firefox will keep the fact that you’re surfing in private mode, well..private. Nice feature.

Private surfing is useful, despite the obvious concern that it will assist people to do things on the internet which are questionable. As internet shopping becomes the norm, it will enable people to keep gift purchases, for example, and other activities private. It’s good that browsers are installing this feature, despite it inevitably being misused by a percentage of people.

I’d love to hear any comments or feedback on Privacy mode and Browser security in general.

Raja Devanathan
Founder of MrFeedback.net

If you would like to guest post or have a post/review written, please get in touch via our Contact page. Standard rates for paid posts/reviews can be found on the Advertising page.

Chrome tarnished by early flaws

September 7th, 2008 Dave W 1 comment

Just a few days after public release, vulnerabilities in Google’s Chrome browser have already been publicised. Ramifications of an attack could range from an application crash to remote malware installation.

The first vulnerability was found on Wednesday by researcher Aviv Raff, who discovered that the browser was open to a highly-publicised ‘carpet bombing’ attack first found in Safari. The Safari hole was patched earlier this year, but because Chrome uses Apple’s WebKit software, the flaw has reappeared in the Google browser.

A proof of concept page was published demonstrating how an attacker could embed malicious code on a web page and then use it to conduct a remote malware installation with a separate specially-crafted Java applet.

Then researchers Rishi Narang and JanDeMooij posted separate reports of a vulnerability in the browser’s chromium.dll component that was exposed through the browser’s URL bar. The flaw can be made to cause an application crash, though neither report mentioned the possibility of remote code execution.

Categories: Google, Internet, Security Tags:

Deny User Access to a Website Using Squid

August 31st, 2008 Dave W 4 comments

There is often a requirement to block/deny user access to certain websites and this post shows how administrators can utilise Squid to achieve this:

Squid is a popular open source web proxy server and web caching software. It has a wide variety of uses, from speeding up a web server by caching repeated requests, to caching web, DNS and other network lookups for groups of people sharing network resources and (which is of most interest to us for the purposes of this post) by aiding security via traffic filtering. It was originally inteneded for Unix/Linux but has been ported to a number of platforms.

Squid has powerful ACL (access control list). The primary use of the ACL system is to implement simple access control. This can be used to deny a user from accessing particular site.

In order to do this we have to edit the Squid configuration file.

e.g. # vi /etc/squid/squid.conf

Search for `Access Controls’ and append the following lines (in this example we are blocking access to ‘nastysite.com’):
acl badsite dstdomain .nastysite.com
http_access deny badsite

Save and close the file, and then restart Squid:
# /etc/init.d/squid restart

 If required, you can specify more than one site to be blocked:
acl badsite dstdomain .nastysite.com  .anothernastysite.com
http_access deny badsite

You can also use regex expressions to block access to more than one website. for example,  if you would like to deny access for any sites where the URL contains the word “twitter”, use the following ACL lines:
acl badsitegroup url_regex -i twitter
http_access deny badsitegroup

More information on Squid commands can be found at: http://wiki.squid-cache.org/FrontPage

 

Internet Explorer 8 – second test version released

August 28th, 2008 Dave W No comments

Microsoft has released a new beta test version of IE8, stating that this version comes with new features to enhance privacy, ease-of-use, and security.

Beta 1 of IE 8 was released in March, but that was aimed at letting web developers take a first look at the new browser. This latest version is aimed at a broader consumer audience.

Although there is no official release date for IE8 as of yet, Microsoft has pledged to deliver more regular updates of Internet Explorer, whose lead has been chipped away by Mozilla’s Firefox browser. It released Internet Explorer 7 in October 2006.

The latest version of Internet Explorer boasts features found in Firefox 3, including a “smart” address bar that remembers and redirects user to website addresses they have visited before.

IE 8 will also offer a mode called “InPrivate Browsing,” which ensures that history, temporary internet files and cookies are not recorded on a user’s PC.

A new security feature that allows a user to block content coming from third-parties trying to track and aggregate the user’s online behavior will also be available.

Microsoft has also updated features such as “Activities” which allows a user to use information found on one page (e.g. an address) in conjunction with online services such as mapping, without leaving the original site.

The latest test release of Internet Explorer 8 can be found at www.microsoft.com/ie8

 

Using the ‘ping’ command

July 31st, 2008 Dave W No comments

Ping verifies IP-level connectivity to another TCP/IP computer by sending Internet Control Message Protocol (ICMP) Echo Request messages. The receipt of corresponding Echo Reply messages are displayed, along with round-trip times. Ping is the primary TCP/IP command used to troubleshoot connectivity, reachability, and name resolution.

Examples of Ping

Windows
ping google.com

Pinging google.com [64.223.167.99] with 32 bytes of data:
Reply from 64.223.167.99: bytes=32 time=37ms TTL=57
Reply from 64.223.167.99: bytes=32 time=37ms TTL=57
Reply from 64.223.167.99: bytes=32 time=75ms TTL=57
Reply from 64.223.167.99: bytes=32 time=40ms TTL=57

Ping statistics for 64.223.167.99:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 37ms, Maximum = 75ms, Average = 47ms

Linux
ping -c 5 itresource.com.au

PING itresource.com.au(203.88.118.177) 56(84) bytes of data.
64 bytes from kookaburra.cbr.hosting-server.com.au (203.88.118.177): icmp_seq=1 ttl=57 time=36.6 ms
64 bytes from kookaburra.cbr.hosting-server.com.au (203.88.118.177): icmp_seq=2 ttl=57 time=36.5 ms
64 bytes from kookaburra.cbr.hosting-server.com.au (203.88.118.177): icmp_seq=3 ttl=57 time=37.0 ms
64 bytes from kookaburra.cbr.hosting-server.com.au (203.88.118.177): icmp_seq=4 ttl=57 time=36.9 ms
64 bytes from kookaburra.cbr.hosting-server.com.au (203.88.118.177): icmp_seq=5 ttl=57 time=36.6 ms

— itresource.com.au ping statistics —
5 packets transmitted, 5 received, 0% packet loss, time 9000ms
rtt min/avg/max/mdev = 35.918/36.638/37.106/0.400 ms

Mac OS X
ping -c 10 itresource.com.au

PING kookaburra.cbr.hosting-server.com.au (203.88.118.177): 56 data bytes
64 bytes from 203.88.118.177: icmp_seq=0 ttl=53 time=40.019 ms
64 bytes from 203.88.118.177: icmp_seq=1 ttl=53 time=47.502 ms
64 bytes from 203.88.118.177: icmp_seq=2 ttl=53 time=43.208 ms
64 bytes from 203.88.118.177: icmp_seq=3 ttl=53 time=50.851 ms
64 bytes from 203.88.118.177: icmp_seq=4 ttl=53 time=46.556 ms

— ping statistics —
5 packets transmitted, 5 packets received, 0% packet loss
round-trip min/avg/max/stddev = 40.019/45.575/50.851/3.588 ms

Useful links:
http://en.wikipedia.org/wiki/Ping

http://www.computerhope.com/jargon/p/ping.htm

Categories: Apple, Internet, Linux, Networking Tags: , ,

DNS cache poisoning exploit released

July 25th, 2008 Dave W No comments

A quick note to warn you that the first code sample has been released to try and exploit the recently announced DNS cache poisoning vulnerability. While most users will be relying on their ISP etc to ensure they have patched the hole, you should also make sure that you have applied any required OS patches/updates (e.g. Windows MS Security Bulletin  MS08-037).

Also – you should note that while attackers may be able to redirect you to a bogus IP, they will not be able to replicate a digitally trusted security certificate. So if you go to your online banking site and see that you are on an ‘http’ page or if you get the IE7 warning page about untrusted/mismatched certificates then you should be careful. Of course, many sites use Shared certificates so it is quite common to see this warning message but you shouldn’t expect to see it when using online banking or similar.

 

Categories: Internet, News, Security Tags: ,

CUDOS for Aussie Chip team

July 10th, 2008 Dave W No comments

Australian research scientists have made a radical breakthrough that could dramatically increase the speed of the optical networks at the core of the internet.

The Sydney University based Centre for Ultra-high bandwidth Devices for Optical Systems (CUDOS) team, led by Ben Eggleton, has created a switch embedded in a silicon chip. The chip uses scratches on a glass surface to direct optical traffic at speeds of up to 640 gigabits per second.

Traditionally, switching network traffic means converting it from light into electrical signals and then back again. However, with the massive speeds now used in backbone networks, such an approach is becoming a bottleneck. The new switch opens up the prospect of multi terabit-per-second speeds.

Eggleton says “The switch chip essentially uses one beam of light to control another. The scratches create a photonic circuit that does the job traditionally done by electronics”. The circuit will guide data in much the same way as trains are guided from one track to another.

Just as potentially impressive as the operating speed is the simplicity and potential cheapness of the design. This should eventually allow it to be incorporated into a wide variety of equipment.

The CUDOS team has worked with other researchers at the Australian National University and the Technical University of Denmark on the project. A proof of concept chip is currently under evaluation in Europe.

Find CUDOS here

Google-YouTube-Viacom decision

July 4th, 2008 Dave W 1 comment

The ongoing Google/YouTube-Viacom litigation has now officially spilled over to users with a court order requiring Google to turn over massive amounts of user data to Viacom.

That data includes every YouTube username, the associated IP address and the videos that user has watched on YouTube. Google will also be required to hand over copies of every video removed from Youtube for any reason. Stanton dismissed Google’s argument that the order will violate user privacy, saying such privacy concerns are merely “speculative.”

Meanwhile, the judge denied Viacom’s request that Google turn over YouTube’s source code.

It seems that far more data is in danger of being transferred than is required to satisfy Viacom’s core stated concern, which is to understand the popularity of copyright infringing vs. non-infringing material. Viacom has asked for much more than that, opening up the possibility of their taking legal action to sue individual users (or at least use the threat of a lawsuit) who have watched ‘copyrighted’ material on YouTube.

 

Categories: Google, Internet, News Tags: , , ,

Firefox 3 Final Officially Released

June 18th, 2008 Dave W 1 comment

The long awaited Firefox 3 has now been officially released in its final stage.

You can download Firefox 3 from here.

Release Notes can be found here.

By downloading Firefox 3 within the next 24 hours, you will also be helping the Mozilla team set a new world record for the most downloaded piece of software in one day/24 hour period.

Live at Mozilla HQ:
Read more…

Categories: Firefox, Internet, News, Software Tags:

Telstra Considers Reselling ADSL2+ to ISPs

June 13th, 2008 Dave W No comments

Telstra has done an about-face on its broadband wholesale strategy by suggesting it might be willing to resell ADSL2+ high speed internet services to rival ISPs.

Telstra, which had delayed its switching on of more then 900 ADSL2+ exchanges for three years until April this year, has traditionally denied competing ISPs access to its ADSL2+ network in fear that the Australian Competition and Consumer Commission (ACCC) would force it to resell the connection to competitors at low-ball prices.

At the time of Telstra’s opening of the 900 ADSl2+ ports, the company declined to state whether or not it would offer wholesale access to its freshly unveiled high-speed service.
Read more…

Categories: ISP, Internet, News, Telstra Tags: