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Stewart's Blog

Stewart Watkiss website to the world ...

(Children, computing, first aid and other ramblings ...)

Archive for the 'IT Security' Category

Windows XP – Closed source software that puts nuclear plants at risk

Thursday, November 14th, 2013

Whilst we are used to hearing about computer viruses and I am aware of many people’s Windows computers that have been rendered practically useless due to adware / spyware installed from clicking on random (until the computer was wiped and the operating system reinstalled). It is one thing to have the inconvenience of having to […]

Runner up in the PA Consulting Raspberry Pi competition

Friday, March 22nd, 2013

During last year I entered into the PA Consulting Raspberry Pi competition. The aim to “Make the world a better place” using the Raspberry Pi computer. My entry was the Kidsafe family Internet filter proxy. I reached the final which was held last week. I had a great day meeting the staff at PA Consulting […]

Are you LPI Certified? – PenguinTutor needs help with LPI-C 1 and 2 exam review

Saturday, January 29th, 2011

The LPI practice exams on are periodically updated to keep the content fresh and relevant to those studying for the the lPIC exams. I do look for changes in the objectives and try and remove questions that are no longer relevant and add new questions to keep the quiz up-to-date. It has however been […]

Lock computer when leaving it unattended

Monday, January 24th, 2011

An essential part of computer security is to always lock your computer whenever you leave it. It only takes a couple of minutes with your back turned for someone to access your personal information or change your Facebook status (frape). Logging out can be a bit of a pain, so luckily there is a quick […]

Wireless networking – Wifi slow or broken – try changing channel

Wednesday, November 24th, 2010

In the good old days of wireless networking the world was a wonderful place. You bought a wireless router plugged it into your broadband and it just worked. There was an issue of not enabling security, but that just made it easier for others to borrow your network (good or bad depends upon your personal […]

Dell helpdesk – McAfee anti-virus 18months free and missing service tag

Sunday, October 31st, 2010

I’ve had a couple of minor issues with my new Dell Inspiron Laptop. These have been resolved now, but I must say that I was a bit uncertain about how well the help desk would handle my request after my previous bad experience with the Dell helpdesk. The issues: missing anti-virus software license and invalid […]

Bug in msnbot (Microsoft / Bing web crawler) exceeding the bandwidth for my website

Tuesday, October 19th, 2010

Unfortunately my website went offline for a few hours on Sunday due to a bandwidth exceeded issue. I’ve already created a post about the problem I’ve had with low cost hosting issues with bandwidth exceeded. Whilst I still think it’s wrong to block a website in these circumstances I believe I’ve found the reason […]

Facebook applications – who are you giving access to your facebook profile to?

Tuesday, August 10th, 2010

There have been some rogue Facebook applications that are being used to gain access to information on individual’s profiles. The latest one has now been blocked, but I’m sure there will be more to follow: Security concerns over latest rogue Facebook app. The controls put in by Facebook to protect against these are that a […]

What’s my IP address?

Monday, July 19th, 2010

Sometimes you need to know your IP address. Sometimes it needs to be the real IP address that you appear as on the Internet and not just the fake one that your local router uses. An example is when I blocked access from visitors whilst upgrading my blog.

Redesign of – Free and Open Source software – Linux certification and open source electronics

Sunday, February 14th, 2010

I’ve now completed a major reorganisation of the PenguinTutor web site. This is the most significant change to the site since it was launched in 2006. The first reason for the change is to reorganise the content. Although it appeared to make sense at the time some of the categories were not as logical as […]

UK days out, children and holiday information is also available on the Days Out Diary web site
Linux, LPI and the Quiz / Test Program posts are also available on the Penguin Tutor website
First Aid Information, first aid games and first aid practice test / quiz entries are also available on the First Aid Quiz Web site