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What happened to Digital Equipment Corporation?

Dave Farquhar Retro Computing June 20, 2017October 3, 20181980s, 1990s, altavista, amiga, apple, commodore, compaq, computer security, d-link, DEC, Digital Equipment Corporation, Digital Research, firewall, hp, IBM, intel, lexmark, linksys, macintosh, netgear, PIP, spam, syntax, unix, windows nt, x86

Digital Equipment Corporation was perhaps the second most important computer company in history, behind IBM. Its minicomputers challenged IBM, and, indeed, Unix first ran on a DEC PDP-7. DEC’s Alpha CPU was one of the few chips to make Intel nervous for its x86 line. It created the first really good Internet search engine. In a just and perfect world, DEC would still be dominating. Instead, it faded away in the 1990s. What happened to Digital Equipment Corporation, or DEC?

There’s a short answer and a long answer.

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.

dfarq.homeip.net

Netgear vs TP-Link

Dave Farquhar Servers and Networking May 5, 2017October 22, 20221990s, 3com, cisco, FCC, netgear, TL

If you’re looking for the pros and cons of Netgear vs TP-Link, I have experience with both and I’m glad to share it.

Netgear is a well established brand, having been on the market since 1996.

I don’t blame you if you’ve never heard of TP-Link. They were founded in 1996 but if you were buying their stuff before 2005, you’re well ahead of me. But I like them a lot.
Read more

Dave Farquhar

dfarq.homeip.net

Configure a Netgear R6300 as an access point

Dave Farquhar Servers and Networking April 18, 2017August 1, 2017AES, AP, netgear, SSID, TL

I picked up a used Netgear R6300 cheaply last week to use as an access point. Here’s how to configure a Netgear R6300 as an access point.

Dave Farquhar

dfarq.homeip.net

TP-Link TL-WR840n vs TL-WR841n

Dave Farquhar Servers and Networking January 4, 2016March 13, 2021belkin, d-link, netgear, TL

If you need an inexpensive DD-WRT compatible router, TP-Link is probably your best choice. But there are some big differences when you compare the TL-WR840n vs the TL-WR841n.

I’ve been running the TL-WR841n for more than two years, so I’m familiar with it. I’ve considered supplementing it with a secondary router, and the TL-WR840n was one I looked at.

Dave Farquhar

dfarq.homeip.net

More about Pfsense, the alternative to the crappy consumer router

Dave Farquhar security February 24, 2014July 11, 2018android, antivirus, AV, DEC, firewall, freebsd, hp, Image File, linksys, netgear, PCI Express, pfsense, tinkerer, tp link, vulnerability, x86

I spent some time over the weekend playing with Pfsense, and I can’t say much about it other than it does what it says. I didn’t throw a ton of hardware at it–the best motherboard I have laying around is a late P4-era Celeron board, and the best network card I could find was, believe it or not, an ancient Netgear 10/100 card with the late, lamented DEC Tulip chipset on it. Great card for its time, but, yeah, nice 100-megabit throughput, hipster.

If you actually configure your routers rather than just plugging them in, you can do this. Plug in a couple of network cards, plug in a hard drive that you don’t mind getting overwritten, download Pfsense, write the image file to a USB stick, boot off the USB stick, and follow the prompts. Then, to add wireless, plug in a well-supported card like a TP-Link and follow the howto. Read more

Dave Farquhar

dfarq.homeip.net

Another day, another router backdoor

Dave Farquhar security January 3, 2014December 5, 2015Ars Technica, cissp, d-link, dd wrt, Exploitation, linksys, malware, netgear

Ars Technica dropped this bombshell toward the end of the day yesterday: A backdoor in Linksys and Netgear (and possibly other) routers. The exploit works on a weird port, so it’s not remotely exploitable, nor is someone going to drop it with some crafty Javascript like the recent D-Link backdoor, but it’s not out of the question at all for malware to do a pivot attack. Here’s how it would work: Once a computer is infected, it could attack the router and infect it too, so that once someone disinfects their computer, the router could re-infect the computer at a later date. A router is a great place to hide, because nobody looks at it, and they have ample storage on them to exploit..

What can you do about it? Read more

Dave Farquhar

dfarq.homeip.net

The trouble with routers

Dave Farquhar Hardware, security August 30, 2013May 17, 20171980s, antivirus, asus, d-link, firewall, Justification, linksys, netgear, vulnerability, Windows XP

I see the advice going around, again, to disable the Windows firewall and rely on an external router, the justification being that it makes your computer “invisible.” It doesn’t. Only IPV6 can do that–and then, only if you don’t use it for anything.

The trouble with that advice is that there are botnets targeting routers. Routers are nothing special; they’re small computers running Linux on an ARM or MIPS CPU, typically outdated versions with old vulnerabilities that can be exploited by someone who knows what to look for. One example of this is the Aidra botnet. Typically Aidra is used to attack outside targets, but it’s not outside the realm of possibility for an infected router to turn on and attack the machines it’s supposed to protect. And if you’ve turned off your firewall, then you have no protection against that.
Read more

Dave Farquhar

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If you use a Linksys router, you need to drop everything now and upgrade it

Dave Farquhar security April 7, 2013April 6, 2013asus, linksys, netgear, vulnerability

If you own a Linksys WRT54GL or EA2700 router, both devices have serious security vulnerabilities. Serious enough that the only way to continue using them safely is to load an alternative firmware such as DD-WRT on them. That’s not entirely a bad thing; DD-WRT is more capable, and unlike most consumer-oriented firmware, allows you to disable WPS.

The EA2700, in particular, is so trivially easy to hack it’s laughable–all it takes is entering a predictable URL into a web browser. That’s it.

Dave Farquhar

dfarq.homeip.net

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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Don’t use software firewalls: Good advice or bad?

Dave Farquhar security October 10, 2011October 9, 2011amd, extra money, firewall, intel, linksys, malware, netgear, prison, vista, vulnerability, Windows XP, x86

A common piece of good-meaning advice you’ll hear is that you should never use software firewalls. But is that good advice, or bad?

On the surface, it’s good advice. It’s much better to use the firewall built into a cable/DSL router. But the software firewall built into Windows XP, Vista, 7, and (presumably) 8 makes for a good second line of defense, so I don’t recommend disabling it.

I’ll explain further.

Dave Farquhar

dfarq.homeip.net

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