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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

Upgrade to Ubuntu 22.04 – DisplayLink – Firefox with SNAP – performance issues?

Sunday, May 1st, 2022

This video provides an introduction to Ubuntu 22.04 Jammy Jellyfish. It has some information about the upgrade process, some fixes that I needed to apply (including Re-installing Display Link drivers) and some of the new features. I have switched back to instead of Wayland so that I can continue to use Simple Screen Recorder […]

Protect your password from hackers

Friday, April 29th, 2022

The password is often the key component keeping a system secure. Users are often told that you need to follow certain rules when creating their passwords which may include using capital letters, numerical digits and sometimes special characters. Rules normally also set a minimum number of characters, which may be as low as 6 (not […]

Pixel Server – updated for new Raspberry Pi OS default username removal

Sunday, April 17th, 2022

As the Raspberry Pi OS no longer uses the default pi username I’ve had to make some changes to some of my software so that it still works correctly. This video goes through the changes I have made to my Raspberry Pi Pixel Server software so that it works without the default username of pi. […]

Penguin Fortress – guide to the Raspberry Pi OS username change

Friday, April 15th, 2022

I’ve created a new YouTube channel called Penguin Fortress. This is created as an spin-off of my Penguin Tutor channel which will concentrate on IT security / cyber security. The first video is on the recent Raspberry Pi OS change which means that Raspberry Pi OS no longer requires the default pi username. The reason […]

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 […]

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