Your smartphone is an amazing piece of technology, but it would be nothing without a cellular network which gives you the ability to text, talk, and browse the web. You may not see most of the massive infrastructure used by your cellphone provider, but it’s there. What If You Could See Your Cellular Network? What →
How low can Ethernet switches prices go? In small unmanaged 8 port 10/100M 5 or 8 port switches typical price is around 15-25 Euros (around 2-3 Euros per port). But there are even cheaper Ethernet switches. Netwjork Tenda S108 SOHO kytkin/switch jossa 8 porttia is a very cheap 8 port 10/100M switch that costs only →
The trend in professional audio systems seems to be that audio signals are move and more moving from balanced analogue interfaces and proprietary digital interfaces to Ethernet networking. There are many good reasons for that, which I am not going through in this post, for more information on reasons for transition look my earlier postings →
Linux Journal has published several interesting articles on Linux networking. Here are some of the most interesting of them. Queueing in the Linux Network Stack tells that packet queues are a core component of any network stack or device. They allow for asynchronous modules to communicate, increase performance and have the side effect of impacting →
I just saw yesterday an interesting Digital Attack Map This Live Map of Ongoing DDoS Attacks is a Digital Attack Map that was produced in a collaborative effort by Google Ideas and Arbor Networks to raise awareness about distributed denial of service attacks that try to choke or shutdown websites. Typical reasons for attacks: sites →
I have written about sending video signals over UTP cable. I have covered single composite video signal and audio. Now it is time to discuss sending VGA over UTP cable. Some DIY people (including me) have built different kind of adapters from VGA connector to RJ-45 connector. In best cases simple passive connection between those →
This week started with news titled D-Link Router backdoor vulnerability discovered and Back door found in D-Link routers. This rather worrying security vulnerability on several D-Link branded modem routers made me to check my system because I use D-Link firewall. But let’s start from the basics. Because D-Link device was on news, where is a →
The fields of electronics, computers and telecommunications is filled with acronyms. To help in surviving on this world of acronyms I started to compile in the 1990′s my own list of acronyms, and you can find my collection of acronym definitions (over 19000 definitions) at ePanorama.net acronym search. You should be able to find most →
Internet.org seems to be on news today everywhere. Facebook Leads an Effort to Lower Barriers to Internet Access article tells that half a dozen of the world’s tech giants, including Samsung, Nokia, Qualcomm and Ericsson, have agreed to work with the company as partners on the initiative, which they call Internet.org. The plan is to →
Hackaday mentioned some time ago an interesting Arduino cellphone. The fact that you can build a cellphone around an Arduino is pretty neat: An Average Joe can build this thing with a minimum or background knowledge and without breaking the bank. Wow. The components include and Arduino Uno, GPRS shield from Seeed Studios, a TFT →