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Mariott doesn’t have the right to jam wi-fi

Dave Farquhar security January 5, 2015January 3, 2015FCC, wi-fi

Mariott wants to jam wi-fi signals. They claim it’s for security reasons, but really it’s so they can gouge guests by charging them for wi-fi instead of using wi-fi hotspots. The security claims are pure bunk.

The truth is that hotel wi-fi networks are generally horrendously insecure, so it’s really better to avoid using them if you can.

Dave Farquhar

David Farquhar is a computer security professional, entrepreneur, and author. He started his career as a part-time computer technician in 1994, worked his way up to system administrator by 1997, and has specialized in vulnerability management since 2013. He invests in real estate on the side and his hobbies include O gauge trains, baseball cards, and retro computers and video games. A University of Missouri graduate, he holds CISSP and Security+ certifications. He lives in St. Louis with his family.

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Eliminate wifi dead spots using access points

Dave Farquhar DD-WRT, Servers and Networking July 23, 2014November 14, 2016antenna, Meraki Wifi Stumbler, SSID, TL, wi-fi

I’ve said before how to eliminate wifi dead spots, but perhaps I didn’t give it the focus it deserves. I think almost everyone has wifi dead spots in their house that they would like to eliminate. It turns out you can do it, and it doesn’t have to cost a fortune either.

The idea is to supplement your existing router with one or two additional access points. Read more

Dave Farquhar

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My impressions of the TP-Link TL-WR841N

Dave Farquhar Hardware, Servers and Networking January 31, 2014December 10, 2015android, antenna, Meraki Wifi Stumbler, TL, wi-fi

The TP-Link TL-WR841N (and the similar TL-WR841ND) is a lower-mid range router that routinely sells in the $20-$25 range. Although many people consider it an off-brand, TP-Link has had a following in the enthusiast community for a couple of years. I’ve been prone to recommend them because they have a better track record than many of the bigger-name brands of continuing to release firmware upgrades that fix security vulnerabilities. If you’re going to buy a router and leave it stock, you’re better off with a TP-Link than anything else.

I only used the stock firmware to load DD-WRT on it though, so about all I can say is that the TL-WR841N runs DD-WRT really well. Read more

Dave Farquhar

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DD-WRT as an access point

Dave Farquhar DD-WRT, Servers and Networking January 7, 2014August 18, 2017android, cat5e, DDWRT, Meraki Wifi Stumbler, TL, wi-fi

There’s an addition on the back of our house, probably added in the 1970s or 80s, where the wi-fi reception is exceptionally poor. Something about the walls makes it tricky, and I also suspect we get some interference from the neighbors behind us. I solved the problem with a cheap router running DD-WRT as an access point. Read more

Dave Farquhar

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No, it doesn’t take a “serious hacker” to crack wi-fi through WPS

Dave Farquhar security March 26, 2013November 22, 20166502, Debit card, intel, john c dvorak, netgear, pc magazine, phone service, wi-fi

John C Dvorak is raving in PC Magazine about Netgear wireless routers and range extenders and how easy WPS makes it to set them up–and providing some very seriously flawed security advice along the way.

“Note that WPS is crackable by serious hackers using brute-force attack, but any SOHO user not dealing with government secrets should be fine.”
Read more

Dave Farquhar

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Wi-fi wants to be free… except it’s not 1994 anymore

Dave Farquhar security January 31, 2013October 11, 2019firewall, RIAA, spam, wi-fi

The Open Wi-Fi movement was on the front page of Slashdot yesterday afternoon. Predictably, comment #2 was, “give me immunity from the MPAA and RIAA and I’ll open my Wi-Fi.” Valid point. Very valid point.

Though there are other problems, too.

Dave Farquhar

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How to be a hero next Christmas (or your next family get-together)

Dave Farquhar Servers and Networking December 25, 2012November 23, 2018android, apple, cat5e, christmas, d-link, SSID, WEP, wi-fi

My mother in law didn’t have wifi set up, but she picked up a smart TV this year, so she asked me if I could help her with it. So I picked up a D-Link DIR-615 on sale, brought it with me and set up wi-fi securely (hints: set the SSID to whatever time it happens to be, disable WPS, disable WEP and WPA, and use WPA2 with a long password with some numbers and symbols in it) and once it seemed to be working right, I put her TV and laptop on it. Then, as other relatives trickled in, they asked me for the wireless key. Soon the air was full of Androids and Apples chattering away on wireless.

Dave Farquhar

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The lightbulb reinvented

Dave Farquhar Uncategorized September 19, 2012CFL, cfls, costco, led bulbs, lumen, lumens, lumens per watt, Micro Center, wi-fi

Timothy Hunt asked me (via Twitter) if I’ve seen the lightbulb reinvented, an LED bulb that screws into a standard socket but has wi-fi capability so you can tune its light temperature and otherwise control it with a smartphone.

I hadn’t. But I found it interesting, and appreciate the mention. Read more

Dave Farquhar

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If you needed another reminder to secure your wi-fi…

Dave Farquhar Uncategorized August 13, 2012August 12, 2012infoworld, wi-fi

And if you needed another reminder of why you should secure your wi-fi:

“There’s a very common belief that if someone pirates your Wi-Fi connection or uses your computer without your permission, you are responsible for illegal downloads of copyrighted material. That’s not true, says Stoltz; the law is quite clear. However, the lawyers who bring those cases use that misperception to convince innocent people that they had better pay up. Since $3,500 is just a fraction of the money it would take to fight a case in court, most people simply settle.” —Infoworld

Dave Farquhar

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Doc, what security settings are you using on your network?

Dave Farquhar security May 15, 2012WEP, wi-fi

A reader who will remain anonymous (he can out himself if he wishes) sent me an interesting observation. He was in his doctor’s office last week, and out of curiosity, he ran a wifi scanner on his phone just to see what networks were available and how they were secured.

What he saw wasn’t pretty. Especially considering he was in a building full of doctors, lawyers, and financial advisors. Read more

Dave Farquhar

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