Security tips for staying safe online—Start of medium level security——Measures that cost money——Start of physical access measures——Start of high level security——Start of deterrent measures—Further reading Security tips for staying safe online Level 1: Avoid using your real name online and avoid giving away any personal information. You can use The Random Identity Generator (rig) to …

Computing in the 1990`s was much different to the experience we have today. The software we used like Internet Explorer and Netscape was not very secure. Running Windows `95 or `98 did not give a great deal of security compared to a modern operating system. The Internet was the wild west before Google came along, …

Updating the sources.lst as I write this, it is taking a long time, but I am using the Town Library connection with WIFI and it is only about 64K per second, so updating the aforementioned file with apt-get update takes quite a while to run. I wish Australia could get a super fast broadband system …

There is a new speedtest website, hosted on Sourceforge this works without Flash or any other plugin. Very useful if you do not wish to install Adobe plugins just to test your Internet speed. https://sourceforge.net/speedtest/. The upload and download speeds are tested, as well as packet loss and latency, giving a good indication of the …

To get just the IP address of your Internet facing Linux machine, use this command. [email protected]:~/Documents/ipinfo/src$ curl [email protected]:~/Documents/ipinfo/src$ curl icanhazip.com This will return just your IP address. This is another way to get this information. [email protected]:~/Documents$ curl ipinfo.io/[email protected]:~/Documents$ curl ipinfo.io/ip To get information about a DNS server, use the dig command. [email protected]:~/Documents/ipinfo/src$ dig 8.8.8.8   …

I installed Ubuntu server 14.03 in a Virtual Machine and after installation the Internet connection was not working. To fix this I added the nameservers to the /etc/resolv.conf file like this. nameserver 8.8.8.8 nameserver 8.8.4.4nameserver 8.8.8.8 nameserver 8.8.4.4 After saving this file, I ran this command. sudo service resolveconf restartsudo service resolveconf restart This fixed …

A very useful PDF file with information about bypassing Internet censorship in a repressive regime. Countries like China and Iran have restricted Internet and this necessitates a method of bypassing this restriction on free speech and enabling unrestricted Internet access to allow the user to upload photos and video of government abuses. Source: http://www.nartv.org/mirror/circ_guide.pdf.

Some common networking terms and their meanings. IPv4 – IP version 4: This is the current networking standard that defines an IP address with a 32-bit address composed of four octects. IPv6 – IP version 6: A newer standard of IP addressing that will replace the current IPv4. This uses a newer and more efficient …