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Ask Slashdot: Is Running Mission-Critical Servers Without a Firewall Common?

pcjunky Internet servers (348 comments)

Plenty of companies do. This is standard Operating procedure for ISP's and online services. Google, Facebook, Ebay all do. If your server needs to be accessible from the public Internet then yes. Firewalls are overrated as a protection measure. If you can run them from behind a firewall then I see no reason not to unless you have to open a bunch of ports to allow access to the server in which case the firewall won't help much. This is usually port 80 and it's where most of your attacks will come from anyway.

If only a select group of people will be accessing this server from the Internet then the safest way may be to make it accessible only via VPN. Users would have to log into the VPN first. Much stronger protection than a server behind a firewall with ports open.

about 3 months ago

Android Leaks Location Data Via Wi-Fi

pcjunky Duh! (112 comments)

I think we kind of figured this already.

Just how is my phone "leaking" this information. I you get my phone then you may know where I have been but I am not going to give you my phone if I want to conceal this information.

about 4 months ago

Ask Slashdot: Taking a New Tack On Net Neutrality?

pcjunky Easy to get around. (185 comments)

Not a large amount of bandwidth involved. If I am a student there all I will do is activate the MyFi on my phone. Why breach a firewall when you can step around it?

about 5 months ago

Prototype Volvo Flywheel Tech Uses Car's Wasted Brake Energy

pcjunky More transmissions! (262 comments)

Great! As if one transmission was not enough. Now I will have to worry about the cost of repairing two. The last one that failed cost me over $3k. I think that's one of the great things about hybrids, no transmission.

about 7 months ago

Malware Attack Infected 25,000 Linux/UNIX Servers

pcjunky Re:The state of Linux (220 comments)

My experience has been the exact opposite. We started way back in the day with all Windoz servers. These were a constant source of headache. They would crash and need reboots weekly. Sometimes things would fail for no apparent reason without any means of fixing them short of reinstalling Windows. We started installing a few Linux servers for radius, DNS, HTTP. These didn't fail and one by one we replaced the Windoz boxes with Linux boxes.

Life is much better now and I spent very little time with server maintenance vs when we ran Windoz boxes. The few Windoz servers we still run take 90% of my time to keep running.

I look back now at what a mistake not using Linux from the start was.

about 7 months ago

Ask Slashdot: Can an Old Programmer Learn New Tricks?

pcjunky Yes Yes Yes (306 comments)

My wife, who started programming in the late 1970's went back to College in 2008 to complete her BS degree. She learned PHP, Java, Java script, CSS. Graduated with honors from UCF. She is very skilled at web development now. She is 53.

She even completed a MS style Thesis in the honors in the majors program.


about 7 months ago

Ask Slashdot: What Software Can You Not Live Without?

pcjunky Re:You lost me at vim (531 comments)

Not biting....Nice try.

about 8 months ago

Steve Jobs To Appear On US Postage Stamp

pcjunky Re:Instead..... (184 comments)

I am for this.

about 8 months ago

Steve Jobs To Appear On US Postage Stamp

pcjunky Re:Dennis Ritchie instead! (184 comments)

That's the reason to have stamps with them. Education.

about 8 months ago

Killing Net Neutrality Could Be Good For You

pcjunky How are small ISP's suposed to compete? (361 comments)

I run a very small WISP. We have around 200 residential customers. Most other alternate ISP (not Comcast or CenturyLink) will not sell residential Internet. Why? Less money, more bandwidth. Streaming video uses up to 100 times more bandwidth that typical web surfing does. Comcast gets Level3 (Netflix's bandwidth provider) to pay them extra to deliver there video streams to there customers. We are so small, how are we supoosed to get Level3/Netflix to compensate us without getting laughed out of the room?

The situation is bad enough that we are considering discontinueing our sales of residential Internet.

At least if Comcast was not allowed to charge Level3 for the delivery of there streaming data (Shouldn't Comcast customer my fees cover this?), net neutrality, they would have to pass that expense on to the customer. If there rates went up so could ours. Level playing field.

about 8 months ago

Whatever Happened To the IPv4 Address Crisis?

pcjunky Arin is alone (574 comments)

While things have slowed down here the other regional IP registars have run out. APNIC and RIPE both have no IP addresses left. Arin has only about 1.4 /8's left.

about 8 months ago

South Carolina Woman Jailed After Failing To Return Movie Rented Nine Years Ago

pcjunky Statute of limitations (467 comments)

She will need to look up the laws in her state but here in Florida the statute of limitations is 5 years for a written contract. This should be easy to make go away.

about 8 months ago

Ask Slashdot: Why Are We Still Writing Text-Based Code?

pcjunky It's who we all are (876 comments)

Text = Languague
Language is not just how we communicate, it's how we think. If they took your language away could you even think anything but the most simple thoughts?

about 9 months ago

Britain's GCHQ Attacked Anonymous Supporters With DDoS

pcjunky Syn flood? (133 comments)

This was the first DOS attack I ever heard of. Used against Panix (ISP in NY) back in the day. Now most systems (Linux kerel, etc) are hardened against syn floods.


about 9 months ago

Network Solutions Opts Customer Into $1,850 Security Service

pcjunky File a complant with ICANN (405 comments)

ICANN has rules for how accredited registrar must handle such things. They could be fined or have there accrediation pulled.

about 9 months ago

Why Birds Fly In a V Formation

pcjunky Mythbusters (207 comments)

Didn't Mythbusters experimentally show that the V formation saves fuel?

about 9 months ago

Is Earth Weighed Down By Dark Matter?

pcjunky Mlet theory (247 comments)

I read this several years ago.

Modified Lorentz Ether Gauge Theory

The mainstream authorities are fond of saying that GPS would not work if it weren’t for Einstein’s relativity. Clifford Will of Washington University has been quoted31 as saying:

        SR has been confirmed by experiment so many times that it borders on crackpot to say there is something wrong with it. Experiments have been done to test SR explicitly. The world’s particle accelerators would not work if SR wasn’t in effect. The global positioning system would not work if special relativity didn’t work the way we thought it did.

Oh really? What does one of the world’s foremost experts on GPS have to say about relativity theory and the Global Positioning System? Ronald R. Hatch is the Director of Navigation Systems at NavCom Technology and a former president of the Institute of Navigation. As he describes in his article for this issue (p. 25, IE #59), GPS simply contradicts Einstein’s theory of relativity. His Modified Lorentz Ether Gauge Theory (MLET) has been proposed32 as an alternative to Einstein’s relativity. It agrees at first order with relativity but corrects for certain astronomical anomalies not explained by relativity theory. (Also see IE #39, p. 14.)

about 10 months ago

The Dismantling of POTS: Bold Move Or Grave Error?

pcjunky Wire is good (582 comments)

Remember that the wire used to deliver POTS service also delivers DSL. No wire, no DSL.

about a year ago

Silicon Supercapacitor Promises Built-in Energy Storage For Electronic Devices

pcjunky Re:Meh (95 comments)

Even if you manged to get 0.1 farad, it would provide 12 volts for only a few milliseconds at 500 amps.

Your average Lead - Acid car battery will put out 1000 amps into a dead short. Don't try this though, things tend to explode.

Super capacitors tend to have very high ESR, no good for power filtering.

Capacitors and inductors are the two things that don't reduce down to chip levels very well. One of the main reasons your cell phone isn't just one chip. Making these on chip is kind of a holly grael. If this were that easy chip makers would have done this long ago.

1 year,2 days



Free Cable for Building Managers, but With Fine Print

pcjunky pcjunky writes  |  about a year ago

pcjunky (517872) writes "As the superintendent of a Manhattan condominium building, Mr. Hogan enjoyed a significant discount on his Time Warner Cable bill for more than a decade, a fairly standard perk for resident managers around the city. In exchange, he understood his role to be giving repair crews access when they needed it, calling the company when problems arose and doing other things of a ho-hum nature.

Then, just a few months ago, he said, he finally saw the agreement in writing."

Link to Original Source

Shaky Battery Maker Claims a Breakthrough

pcjunky pcjunky writes  |  more than 2 years ago

pcjunky writes "WALTHAM, Mass., June 12, 2012 (GLOBE NEWSWIRE) — A123 Systems (Nasdaq:AONE), a developer and manufacturer of advanced Nanophosphate® lithium iron phosphate batteries and systems, today introduced Nanophosphate EXT, a new lithium ion battery technology capable of operating at extreme temperatures without requiring thermal management. Nanophosphate EXT is designed to significantly reduce or eliminate the need for heating or cooling systems, which is expected to create sizeable new opportunities within the transportation and telecommunications markets, among others."
Link to Original Source

Email Inequality? Are small providers SOL?

pcjunky pcjunky writes  |  more than 5 years ago

pcjunky writes "I run a small ISP ( that provides email services to a couple hundred small businesses. Recently we have had a lot of trouble with email being refused by large ISPs. I have checked and our server isn't listed in any of the public DNSBL lists such as sorbs or spamcop. These providers claim that my server is being blocked for reputation. We have had a small amount of SPAM come through our server(s) when a customers machines gets infected. We do our best catch this quickly and stop it but some SPAM does get through. Since we are so small the larger ISPs don't suffer from blocking us. This brings up an interesting question. Are small email providers being discriminated against? A large provider such a Google would never be blocked no matter how much spam comes through their system because they are too big to block. What can small providers do about this inequity?"

Comcast getting threats from irate customers

pcjunky pcjunky writes  |  more than 7 years ago

pcjunky writes "It seems some customers can't take it anymore. Comcast has received two threats in as many weeks. It seems a 75 year old man threatened to throw has cable box through their window. Reported in our local news paper. The original story can be read here."

UCF students want right to carry guns

pcjunky pcjunky writes  |  more than 7 years ago

pcjunky writes "Jennifer Larino writes in the UCF student newspaper "There are some things in this world that I will probably never understand. One of those things is a fight to lift the concealed weapons ban on college campuses across the nation. A new club at UCF plans to work with the National Rifle Association to do just that. The movement is driven, as most NRA movements are, by the Second Amendment, and the need and right for people to be able to protect themselves."
Full story at University of Central Florida student newspaper online."

pcjunky pcjunky writes  |  more than 8 years ago

pcjunky writes "A strong earthquake occurred about 250 miles (405 km) south-southwest of Apalachicola, Florida at 8:56 AM MDT, Sep 10, 2006 (10:56 AM EDT in Florida). See USGS advisory for more info."


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