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1851

Anyway, most of the switches are around 15 years old by now, 10/100MBit and come with a coax connector as well

Some old 3COMs used to have special matrix-type ports and cables to link the backbones of multiple hubs and switches together. That gave them better throughput between the switches than running a standard crossover cable because the network ports were mostly just 10Mbs on the boxes that had that feature. We're talking late 80s/ early 90s vintage on those. I don't recall seeing any with coax connectors though.

CAB-TWINAX.jpg     cab.jpg

I'm guessing that was probably for twinax cables - which are shielded twisted pair although they look very similar to coax. IBM was big on that type of wiring for their ARCNET network topology. Their 52xx series terminals (usually connected to a System36 or System38 minicomputer) all used twinax cables. Early Ethernet did too IIRC.
 
Here's a '36' - sometimes called "the world's littlest dinosaur." It was about the size of a two drawer filing cabinet. It's preferred language was RPG-II - although you could also license COBOL, FORTRAN and BASIC for it. Love that 8" floppy drive!

sys36.jpg   _S36.GIF

Ah...those were the days! (NOT!!!) ;D



1852
Non-Windows Software / Re: Debian Tails OS question
« Last post by 40hz on May 21, 2014, 01:59 PM »

How would I make a few basic mods to the Linux OS on the DVD, such as adding DimScreen or OpenOffice and burning it to DVD again?

It's a little more complicated than that unfortunately. You couldn't modify a live distro without remastering the DVD itself. Not an easy thing to do if you're new to Linux. IF you wanted to customize something like that, it would be better to do it as a virtual machine which would provide 98% of the safeguards you'd get running off a live disk. Be aware however that Tails was specifically configured to provide zero opportunities for a traceback. So whatever you decided to add to such a distro (should you remaster it) would need to be chosen and configured with that in mind.

Could I boot from the live Linux DVD, then do a 'hot' plug-in of my SATA HD as needed to transfer a few things like DimScreen, then do a 'hot' unplug of the SATA HD again?

In most cases you could use an external drive with a live distro - but usually not to install software since the directories an installer will want to write to would be on the read-only media. A portable-type app should work however - as long as it wasn't trying to write temporary files someplace it couldn't. (Some "portable" apps try to do that.)

I also don't remember if Tails is provisioned to mount an external drive. Because Tail's goal is to protect you during a web session, it may have disabled external drive mounting. And even if you could, it might not be a good idea if stealthy operation was your main concern.. But that's using Tails. Pretty much all the other live distros will allow you to use USB keys and external drives with no hassles.

What's the latest and greatest Linux flavor people recommend now?

There will be as many answers to that question as there are people giving answers. Good beginner distros (IMOHO) are Linux Mint or Linux Lite. Both can be run from a bootable DVD if you just want to try them out.

A very comprehensive source for information and links to Linux distributions and apps is Distrowatch. It's pretty much the main directory for what's out there. As of this week they're tracking 287 active distributions, with another 265 waiting to be listed (see below) - so there’s bound to be something in that collection you can live with.
dw.png

Gee, my Win7 32-bit can only make use of 3GB of my available 4GB RAM; maybe a live bootable Linux could enable all 4GB.

It's possible to use above 3Gb of RAM with a 32-bit version of Linux - if your distro is using something called a 32-bit PAE (physical address extension) kernal. However, even if you can access over 3Gb of RAM, the per process RAM limitations of 32-bit Linux still cap out at 3Gb - even with a PAE enabled kernal. So it's still a bit of a kludge and generally not recommended. Like Windows, if you want to use over 3GB of RAM, you're much better off going with the 64-bit version of an OS.

opus_art.jpg Hope this was helpful! :Thmbsup:
1853
:huh: ...WAN port on a switch? :huh:
-Stoic Joker (May 21, 2014, 11:38 AM)

Yeah. That's why I wanted the equipment list. There may be some nomenclature issues (i.e. switch/router/combo) we'll need to get straightened out too.  ;)

BTW - I had a chuckle and an eye-roll (Oh puh-leez!!!) over that managed vs unmanaged switch "explanation" too. I guess that's another one of those "little known facts" you hear about. ;D
1854
As above theory suggested, this says jumbo packet size definition mismatch to me ... That sound about right to you too 40hz?
-Stoic Joker (May 21, 2014, 07:53 AM)

Yup! That was my first thought. Which is why I wanted to see the equipment list in order to get an idea if that might be the case, and more importantly, if it was fixable without needing other hardware.

But Shades raised another interesting point. If the ISP supplied router is capping them on the WAN side that's another possibility. Kinda like business grade DSL service around where I am. Most circuits can provide the full bore. But the ISP sets the rate in their locked-down router so you only get what you're paying for. Which is why upgrading to the next level "asymetric" usually requires nothing more than a phone call and maybe a credit check. One hour later and presto you now have a faster pipeline courtesy of the tribbles over at central office who went in, changed a setting, and bounced your router.

The giveaway would be whether or not the client has admin access to the router. If they don't - and I'm guessing they don't - there's a real chance The ISP is capping them. And the fact it got "fixed" so easily tells me it was a local router setting that was misconfigured. (Some providers set you up initially at the next highest rate to give you a taste of what the deluxe service level feels like. It usually reverts to what you've contracted for after a week or two if you don't take advantage of the "special offer" upgrade. Maybe, in this case, they forgot to drop it back down?

So anyway yeah...frame mismatch or capping in effect. Those would be my two best guesses.

Regarding Untangle NG:

I think Shades made an excellent recommendation. :Thmbsup: I like Untangle too. I have a few small SOHO clients plus my two sister's houses (one with a home-based business) running off Untangle. And it's a dream to set-up and administer. What's really nice is you can see into everything it's doing - so if you ever need to troubleshoot, everything from your WAN port inward is visible and configurable. And it supports web caching and bandwidth control - so that should help with web access. Plus there's built-in WAN balancing and failover - so if they do end up keeping two ISPs, those features can provide some interesting possibilities.

1855
Only have time for a quick reply right now.

Regarding the DNS lock-in:

It's not that common - but it's also not unheard of for a Cable or Telco ISP to want you to use their DNS servers. If that's their new rule for which they won't grant any exceptions - and you don't want to switch ISPs - you're out of luck. If it becomes a real hassle you can always install a proxy server (like Squid) in your office to cache DNS queries and provide some speed up there.

FWIW, not letting you use your own choice of DNS servers in the name of their network's security is a bit of a stretch. I'm guessing it's more for your ISP to gather data on browsing patterns, block certain queries or sites, cap bandwidth to things like Netflix (and so much for "net neutrality" right?) or for something similar they've instituted that new rule. Your choice of DNS servers can't (well ok...shouldn't) really do anything to jeopardize their network's security. Even if you hit a DNS server that's been 'poisoned.' So nope...the official 'reason' they're giving you doesn't pass muster in my book.

 8)

-----------------------------------

Addendum: when you do show us your network map, also include the make/model of the routers and switches you're using? That would be very helpful to know. :) :Thmbsup:
1856
Living Room / Re: Website hacking - tools to help spot issues
« Last post by 40hz on May 21, 2014, 04:39 AM »
Out of curiosity does anyone know any way to scan MySQL databases for potential injection issues?
-Carol Haynes (May 20, 2014, 11:16 AM)

Hoo-boy! Ran into that same question with a few of my clients last year... :tellme:

OWASP has information on procedures to test a database for SQL injection vulnerabilities.

AFAIK, the default automated testing tool is sqlmap. That's what my two clients used as their starting point even though some sources have argued it won't catch everything. You can find info and the download links for sqlmap here.

sqlmap is an open source penetration testing tool that automates the process of detecting and exploiting SQL injection flaws and taking over of database servers. It comes with a powerful detection engine, many niche features for the ultimate penetration tester and a broad range of switches lasting from database fingerprinting, over data fetching from the database, to accessing the underlying file system and executing commands on the operating system via out-of-band connections.

However, most of what I've read suggests that rather than trying to scan or otherwise test for vulnerabilities, it's far easier to take the precaution of making sure all your SQL statements are paramaterized. Smart money says sanitizing your SQL that way is the only reliable method for stopping injection attacks. Nice short article on that over at Coding Horror. Find it here.

Luck!  8)
1857
General Software Discussion / Re: 4 (Maybe more) Absolute top go-to programs
« Last post by 40hz on May 21, 2014, 04:10 AM »
end-to-end private key encryption and location of its servers in Switzerland, beyond the reach of U.S. courts in a nation with very strong digital privacy rights.

The only fly in the ointment is:

1. Right now we don't really know how secure any encryption system is since there's been concerted government efforts for the last several years (and not just in the USA apparently) to secretly weaken encryption and the underlying algorithms such systems depend on - and also to backdoor the programs that use them.

2. Never underestimate the power of the buddy system and quid pro quo when it comes to governments and police agencies. Despite having strong constitutional protections and privacy laws, far too many nations have displayed a curious willingness to cooperate with foreign court orders, police agencies, and self-appointed industry watchdog groups - often in direct violation of their own local laws. Probably because, in the final analysis, "Cop is Cop" no matter which badge they carry - or which nation they claim their authority under.
1858
Living Room / Re: How long do hard drives actually live for?
« Last post by 40hz on May 20, 2014, 08:01 PM »
No correlation with heat? Now that is really interesting...

I wonder, however, if there's a missing factor at work since Backblaze is operating in a climate-controlled data center environment with what I'd suspect is cleaner and better regulated power.

Are the ambient heat levels or fluctuations similar to those experienced in a less controlled environment? I'm wondering if they've engineered an environment such that heat doesn't factor significantly in drive failure - which might suggest it's not just heat, but heat plus an additional factor  - or factors.

Yup. This is getting real interesting.

1859
Living Room / Re: Our experiences with LED light bulb replacements
« Last post by 40hz on May 20, 2014, 05:46 PM »
I just picked up a few of those lollipop-shaped Phillips LED "bulbs" from Home Depot. On sale for $3 and change.

phillips1.jpg

I have one in the ceiling light over the kitchen sink. It looks nice and doesn't seem to throw any heat.

LITE001.PNG

Don't know what the base is doing temp-wise. If I ever get my IR thermometer back I'll have to check it. The CFL lamp that was in there has a discolored base from the heat its ballast generated.

Also found this shot of the inside of one of these bulbs.

phillips.jpg

Which is great because I was very tempted to crack one open just to see what was inside. $3 saved! :Thmbsup:

I can't help thinking a time will come when we'll need to liberate these lamps from AC because the inefficiencies of converting 110v down to what the LEDs need is a waste. I have seen some vacation-type homes wired for regular AC (required by building code) and low-voltage DC for things powered by the solar panels on the roof. I think as time goes on we'll see more of this. Possibly with the electrical mains remaining the way they are - but with only a small number of outlets to provide 110v or 220v AC to less efficient devices like clothes dryers, convection and microwave ovens, air conditioners, etc. The rest of the outlets, that power everything else, will be low-voltage DC driven by a single transformer/regulator located in the basement.
 8)


---------------

Update: it's been in for a few hours now and it's warm. If I put my fingers on the ring around the 4 o'clock mark, I can keep them there about 3 seconds before I have to move them. It's definitely hot enough to burn.

Oh well! So much for the heat reduction. The CFLs are definitely running cooler. The lamp base is equally hot - but at least the CFL tube was touchable. Not so the LED ring.  :( 
1860
Living Room / Re: Ivy Bridge vs Haswell
« Last post by 40hz on May 20, 2014, 04:25 PM »
In the end it comes down to what you want to do with it. If you're not an overclocker, and you're doing normal things (i.e. gaming, webbing, running productivity and media apps, etc.) either chip is equally fine. Haswell has more future upside if AVX optimized software takes off. But it will probably be a a bit before it does - assuming it does. I'm thinking it will. Eventually...

Prices being mostly equal, having additional features that may take off down the road, and performance being marginally better with Haswell across the board, Haswell is technically the more "future-proof" chip. But seriously, who cares? By the time the software catches up, it'll be time for a new system anyway.

I think your current build configuration looks just fine. It'll be one serious machine once it gets assembled. I wouldn't worry about it.

Simple truth is this technology advances so quickly, and changes course so rapidly, that no matter what you pick today - it won't be the ideal decision a year from now. My approach is: get a decent CPU, a quality mobo, name-brand power supply and video card, max out the RAM, add a quality hard drive - and call it a day. And no matter what else, try not to let it make you crazy.
 :Thmbsup:
1861
^It doesn't seem it's just junkware publishers going with it. At least as far as we've known them so far. Looks like there are some very big names (e.g. HP) working with them too.

Not a good sign of what's yet to come IMO. :huh:
1862
Living Room / Re: ImgBurn - full of OpenCandy and other crap
« Last post by 40hz on May 20, 2014, 12:51 PM »
@MikePerry & kgooch - glad to see you both posting your first comment in the forum after being members since 2010 and 2008 respectively.

Welcome! :)
1863
Whatever happened to OpenCandy? Their rep was posting here a lot for a while, really pushing their wrapper and, like 40hz said, redefining the terms "adware" and "spyware". Then it all stopped suddenly. Did they crash and burn? Change their name? Get bought out by Google?

Thanks!

Jim

It's still owned and operated by Sweetlabs Inc. over in San Diego CA. And they appear to be still very much in business, claiming $21.5 million in venture funding and 750 million app installs according to their website. Not small potatoes by any measure, it would appear.

1864
Living Room / Re: Movies or films you've seen lately
« Last post by 40hz on May 19, 2014, 11:12 PM »
The Cloud Atlas.

cloudatlas.jpg

A not bad at all adaptation of the David Mitchell novel by the same name. A quantum metaphysical romp through several centuries of linked souls and events. Some remarkably good performances by Halle Berry, Jim Broadbent, and especially Korean actress Doona Bae for her portrayal of a clone by the name of Sonmi-451.

halle.jpg     broadb.jpg     doona.jpg

One fun thing about this movie is that almost every actor plays several (as in three to seven) different roles - so it's a fun game to try to identify who is playing whom in the various storylines. Some of them will surprise you when the credits roll.

1865
Living Room / Re: Does this exist - future low airfare alert?
« Last post by 40hz on May 19, 2014, 04:56 PM »
IIUC, the airlines themselves operate on a totally flexible fare system. So unless they're willing to commit to a given fare on a future date, how would you do that? I've gone onto a airfare sites, got a price, thought about it for a bit, and found out it was gone when I finally went to commit.

A travel agent (who may be wrong - I don't know) told me fare quotes were usually only good for about 10-15 minutes from the moment of request - and were constantly updating and fluctuating in the background because the airlines were juggling them in real time based on actual bookings.

Does anybody know if that's correct?
1866
That's life in the big city, the law of the jungle, life on the streets, or just me being wordy and pragmatic at the same time. You yourself have said not to try solving a people problem with technology ... And that too agrees with the other. Because the problem lies with the wanton desire to circumvent the system...not the system itself. Sure it's human nature to be curious and explore the limits. I just think it's incredibly foolish to keep trying to gloss over and ignore the existence of the predatory aspects of human nature.

-Stoic Joker (May 19, 2014, 11:47 AM)

I didn't so much say not to try to solve people problems with technology as I said not to confuse or conflate a technical problem with a people problem. It's a small but important difference. You can always "solve" a people problem with technology through the simple expedient of using technology to eliminate "the people." There's been enough cases of deliberate genocide in the last thirty years to indicate it's becoming a popular option in some places.

I don't see "animal" instinct or cosmic levels of "evil" when I look at most of what is going on. What I do see is a lot of laziness, refusal to take responsibility, lack of civility, fear (as in angst), impatience, and sloppiness in our own behavior, and our behavior towards each other. I think we sometimes wish it were a "law of nature" that we be that way - because that would provide a convenient excuse for all sorts of bad behavior - and a justification for all sorts of pre-emptive and repressive responses on the part of those in power to prevent or mitigate them.

To my mind, that's a setup - a blatantly rigged no-win game - and one I choose not to play.

So I don't think I'm glossing over bad behaviors or certain people's proclivity to indulge in them. People do bad things. No argument from me on that point. But what I do disagree with is that any of this is beyond our personal ability to control when it comes to our own behavior. To say "it's human nature" means it can't be changed. And I don't see that. The human brain is like a piece of putty. People change their thinking all the time. And other people often change (or at least try to change it) for them.

And I don't think that "will to power" thing that gets tossed around is all that real for the vast majority of the population. Very few people want power as in "power for the sake of power." What they do want is to not have to feel afraid... or feel pain... or suffer want. Most just want a high level personal security as far as I can see. And it's the actions they take to get there which often bear strange fruit. But that's more a side effect or "unintended consequence" rather than an 'end' - or "the original plan."

So no...I don't think we're animals, or monsters, or rabid rabbits that need to be penned in and watched lest we all kill each other. I just think we get lazy, and tired, and impatient, and afraid - and we do counterproductive things to ourselves, and each other, as a result.

It'd be nice if it were all more "cosmic." But it's incredibly banal from where I'm sitting. And easily dealt with if you want to fix it.

The real problem is the excuses we make for it, and the psychological difficulties we encounter any time we try to change what we're currently doing. Because feeling secure is what we seem to want more than anything. Even if that security is based on feeling insecure - because at least that way you've established something (i.e. paranoia) as a given.

Just my :two: anyway. 8)
1867
General Software Discussion / Re: URL Snooper deleted by Panda Cloud Antivirus
« Last post by 40hz on May 19, 2014, 01:43 PM »
Wow! Most AVs let you set the default detection response.

Most default to "Ask what to do" - probably more to cover their butts than anything else. But that doesn't mean the enduser can't set them to automatically remove or quarantine a suspicious file. Does Panda Cloud not provide that as an option?

 :tellme: :tellme: :tellme:
1868
^Agree. A "stacks" linking/cross-link feature would be a huge plus to me if I were looking for yet another note manager. That's about the only thing in OneNote (and Hypercard in days of yore) that I found uniquely useful with either product. :Thmbsup:
1869
Man! What an ugly world some of you are living in. Sure glad I don't live there!  ;D
1870
Note Frog's look is distractingly busy-looking and hard on the eyes. I couldn't see myself willingly spending a lot of time in it because of that. The interface isn't XP...or even Win98. It looks closer to an early Delphi app under Windows for Workgroups, or possibly something written for a Commodore 64. At least to my tired eyes.

A pretty interface won't make a bad app into good one. But it can certainly make a very good app look like a bad app. And with all the competition in this category of product, a dev might not get a second chance if the interface is a turn-off.
1871
So while I think it's great that Mssr. Jannsens has proposed this (hopefully with the most noble of intentions) I don't think it will ultimately turn out much different than what has gone before it.

In short, people suck.  And the more power they have, the more they suck.  So, it's just the option of the person that's doing the sucking.

No. It's not so much people suck as they get weird - and do weird things - around money.

And the bigger the amount of money up for grabs, the more (and sooner) they get that way.

I don't know if it's "human nature" or "the odds" or "original sin" or whatever. But it works out that way often enough that it might as well be whenever people and money go out dancing with each other. ;)
1872
While I respect the hope behind the offer, I can't see where anything like this (should it really take off) will remain immune to the same problems and malevolent forces that are besetting Bitcoin right now. Any time the potential for huge amounts of money and power gets put on the table, it's only a matter of time before the less noble element shows up to exploit it - with government and criminal interests arriving close behind.

So while I think it's great that Mssr. Jannsens has proposed this (hopefully with the most noble of intentions) I don't think it will ultimately turn out much different than what has gone before it.

Still, I wish this endeavor the best of luck. Because it's going to need it. :huh:
1873
Living Room / Re: Our experiences with LED light bulb replacements
« Last post by 40hz on May 18, 2014, 08:11 AM »
The CFLs, which most of my house uses, last about 6 months to maybe a year (under moderate use) where I am. I don't see anything like the five or seven year lifespans claimed on the packages. Could be our local utility is  to blame because they provide rather dirty power and deliver highly fluctuating voltage levels during AC season.

I still worry about the long-term mercury problem however. CFL bulbs just get tossed rather than recycled. It might not be a problem so far. But ten years from now, when billions upon billions of these things are sitting in landfills...

There's been some lame arguments that the reduction in power consumption from CFL bulbs results in less overall mercury being released into the environment in areas where coal-fired generators are the norm - because less coal (which also contains mercury) gets burned. But that sounds more like an industry thrashing around to find something - anything - to throw up against the fact that no level of mercury exposure is ever good for us.

1874
my netbook, MSI Wind U100 only appears in the archived H/W Database for version 1.0.6. does that mean the newer 1.0.8 won't run on my netbook? just want to clarify before taking the leap.

I specifically asked about the new v2.0 beta. Valtam said they all should be fine at 1024x600. I can't personally vouch for it because I don't own a netbook to test it on. Their IRC is on Freenode - #Linuxlite.  Why not drop by with your specifics and chat with them? Or visit their support forum here.

Again, it's a "live" CD -so you can run it without installing it first. That's always a good idea no matter which distro you're interested in.
1875
Living Room / Re: DC/Indie/coder/startup house/condo/etc
« Last post by 40hz on May 17, 2014, 09:02 PM »
^It was Mouser's idea - not mine. I just chimed in because it was like hearing a blast from the past. 8)
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