Waze, the “…world’s largest community-based traffic and navigation app” failed its users in the Santa Cruz, California area during the month of February 2017. These users who depend on Waze to find out traffic conditions and alternate routes were not able to do so. The same was true for Google Maps. For example, when traffic stalled for up to three hours, Waze and Google Maps happily reported that conditions were just fine.
Many Santa Cruz, CA residents commute from the beach community, and ever farther, to the Silicon Valley. They commute over highway 17, a four-lane twisty thoroughfare (two lanes in each direction), built over a mountain range. Normal drive times span between 30 and 45 minutes each way. Once your vehicle enters this highway, you are committed; you cannot turn around until you reach the other side of the mountain.
Continue reading Why did Waze and Google Maps fail?
A New York City based start-up company, Confide, offers a text messaging system “with encrypted messages that self-destruct.” You can download the app at https://getconfide.com/
Confide lets its users “discuss sensitive topics, brainstorm ideas or give unfiltered opinions without fear of the Internet’s permanent, digital record and with no copies left behind.” “Messages disappear forever after they are read once, making them as private and secure as the spoken word.”
Continue reading Confide, a Favorite App of the White House, May Not Be Secure
Cisco Systems recently announced a patch for a vulnerability in Simple Network Management Protocol (SNMP) functions of some Cisco routers. “This vulnerability could allow an authenticated, remote attacker to cause high CPU usage on an affected device, resulting in a denial of service (DoS) condition. The vulnerability is due to an incorrect initialized variable. An attacker could exploit this vulnerability by performing SNMP polling on MIBs and using only Interface Index (ifIndex) values. A successful exploit could allow the attacker to increase CPU usage to 99% on an affected device and cause a DoS condition.” 1
Continue reading Checking for New SNMP Vulnerabilities
How to Manage Your Network Using SNMP by Marshall T. Rose and Keith McCloghrie
Performance and Fault Management by Paul L. Della Maggiora, Christopher E. Elliott, et. al.
Practical Guide to SNMPv3 and Network Management, A by David Zeltserman
Continue reading Recommended books from our engineers
The Internet Is An Imperfect and Hostile Place
The world is an imperfect place. The internet is no exception. The internet has its good days and it has its bad days. Or to be more precise, the internet has its good seconds and its bad seconds.
Blemishes in internet performance arise from many sources. Continue reading Why You Should Care About Impairment Testing of Internet Protocols
Cloud computing has taken hold of the business world, nearly reaching its saturation point according to multiple industry reports. The business cloud and its cloud testing capabilities are growing at an extremely fast pace due to scalability, adaptability, cost-effectiveness, and efficiency across nearly every industry.
Continue reading New Cloud Testing Paradigm Comes With Challenges that Network Emulators Can Solve
You’ve written an awesome app, and the whole company is banking on how well it does. You’ve done the tests; it has passed QA. It’s exactly what everyone says they need. So your company launches the product, and you wait for the awesome reviews to come rolling in. Continue reading Is your application ready for the cloud?
ASUS, a well-known electronics manufacturer, has launched a new motherboard, the X99-A/USB 3.1, primarily targeted towards the online gaming industry wherein players participate over the internet. Continue reading Did ASUS X99 Motherboard Testing Miss the Mark?
Monday, June 13th is the birthday of James Clerk Maxwell, the inspiration for our network emulators!
James Clerk Maxwell was born 13 June 1831. Among his many contributions to physics, James proposed a thought experiment called “Maxwell’s demon” that suggests that the Second Law of Thermodynamics could be violated. Continue reading It’s James Clerk Maxwell’s Birthday
Joe rises early as he has a busy day ahead of him. The first thing he does is reach for the smart baby monitor on his nightstand. The visual feed tells him that his 3-month-old daughter is still sleeping soundly,and the temperature display for the nursery lets him know that the baby is neither too hot nor too cold.
Continue reading The Importance of Optimizing User Experiences for Internet of Things and Cloud Applications