Entries Tagged as 'Computers'

Linux BitTorrent Clients

I’ve been looking at bit torrent (BitTorrent) clients for Linux over the past few weeks — and to say there’s a huge number of candidates wouldn’t do justice to the number of choices a person has… but like so many things in life, quantity and quality are generally on perpendicular axises.

I set a fairly simple set of requirements for the client:

  • Open source
  • Stability
  • Simplicity
  • Configurability
  • Support protocol encryption (require it)
  • Light on resources
  • Ability to handle torrents via URLs

And I set some nice to haves:

  • Search integration
  • Daemon
  • IP black listing (though I use IPBlock, so this is only a nice to have for others)

So once again I set out to limit the field and do some real testing on Ubuntu 10.04LTS… and the ones I ended up really doing more than just kicking the tires are listed below (alphabetically).  Other failed because they didn’t meet my requirements, they were pieces of crap that should be expunged from the world (LOL), or I just didn’t like them enough to waste time and energy on them.  The links for each of the below are to Wikipedia; you can find links on there to the website for each client.  I installed all of the clients via the package manager on Ubuntu.

Deluge · Deluge is a fairly basic program, though has just about every setting configurable that you might want.  It does have a client / server model (use of it is optional); but a single instance of the daemon is unable to handle multiple users; but it does allow you to terminate your session and continue downloading, and it doesn’t seem to have any issue running multiple daemons (one for each user).   This client also offers a number of “plug ins” to provide a block list, a web ui, a schedule, etc — features most others just include as part of the base system.  I wanted to like this client more than I did; but in the end I can only call it acceptable.

KTorrent · KTorrent is a nicely done program, and it has just about every setting configurable that you might want.  Interestingly by default the queue manager is disabled, so it really doesn’t act much like any other bit torrent client I’ve ever used — but enabling it gives you the ability to download multiple torrent at once.  One short coming is you don’t seem to be able to limit the total number of downloads and uploads together — you can do them individually, but that means for trackers that limit your total active connections you could end up not using all of them.  I’ve also noted that this client seems to be a little “fat” and consume a significant amount of system resources (GUI in particular) when left running for extended periods.  I like this client; but there are better.

qBittorrent · qBittorrent is essentially a *nix clone of the Windows version of uTorrent (µTorrent); and it certainly does a good job mimicking it.  It seems to have all the features I wanted; and none of the downsides.  It has a web ui, a ip filter, etc.  It seems to be reasonably light on system resources and just works.  If I had to pick a standalone bit torrent client, this would probably be my recommendation.

TorrentFlux · TorrentFlux is actually a web ui for BitTornado.  There is a fork of the project called TorrentFlux-b4rt that looks like it will eventually offer more features (and support more bit torrent engines) but for the moment TorrentFlux appears to be much more stable.  It’s fairly basic, but has most all the features one might want.  While many of the others offer a web ui, I think this is probably one of the better “server” solutions for bit torrent clients.

Transmission · Transmission is a very simple bit torrent client; perhaps too simple.  It has all the settings you need, as well as a web ui.  It also has ports for just about every operating system (so if you only wanted to deal with one bit torrent client on multiple operating system this would be a good choice).  Transmission has a huge following; but personally I felt it just wasn’t quite what I wanted.

In the end, I guess I didn’t find a bit torrent client that I really liked… but I think TorrentFlux (or a re-incarnation of it) has good potential to be what I want; and I think qBittorrent is probably my favorite of the stand alone clients.  However, in saying that, let me underscore that every client on this list works, and works acceptably well — so I don’t think you’ll go wrong with any of them… and I’m sure that those with a religious conviction to one or the other will just not accept that their favorite client doesn’t top my list… but in fact, I’m holding the tops slots of my list open hoping I find something better.

NOTE: The use of torrents for downloading does not necessarily denotate that a user is breaking any laws.  That said, because many internet service providers will terminate a user that is using a torrent client, it is a good idea to require encrypted connections and use IP filtering software (with current black lists).

Originally posted 2010-08-16 02:00:55.

Netbook

I purchased a MSI Wind U100 a couple weeks ago for an “on-the-go” computer.

At $299 plus $99 for a 2.5″ SATA2 500GB Seagate hard drive and $15 for an additional 1GB of DDR2 it’s a fairly economical solution to use to browse the web on the go, send/receive email, mapping, GPS, music and videos, contacts, date book, etc.

I looked at all the options, but I choose this one because I wanted 2GB of memory (most of them come with only 512MB built in so you can only have 1.5GB total and a couple only allow 1GB total).

The Atom N270 processor is by no means a top performer, but it does a fairly good job and mine is running Vista Home Premium with no issues at all (it ships with Windows XP Home).

The only thing I dislike about it is the fact that the keyboard is so small; but if you want a small notebook you’re going to have to live with a small keyboard!

No one computer is right for everyone, so you’ll have to decide what’s right for your particular needs, what your intended use is, and your budget.  There are actually models of netbooks you can purchase with an AT&T wireless modem installed for $99 (of course you have a two year contract your saddled with).

Bigger than a PDA, but far more flexible!

Originally posted 2008-12-27 12:00:21.

On the quest…

Shortly after I received my Windows 7 licenses I realized that I was growing tired of paying for software upgrades and simple fixes; further I was growing tired of needing to re-learn how to do simple tasks when the software vendor decided to improve my experience.

I started thinking about ways to reduce and perhaps totally eliminate my dependency on particular software vendors (and that wouldn’t be just Microsoft — Apple plays the exact same game — and don’t get me started on Google).

Certainly there must be quality software out there that was built on the paradigm that computers are tools and that they should improve an individuals quality of life, not create a life centric on a computer and a religion based on software.

I’ve already published many articles about my quest to find an operating system that would is focused on usability; but my quest (with the help of many of my friends and associates) will cover every piece of software you might need or want on your computer to achieve make your day to day life simpler…

This is a big undertaking; and it will take me quite a bit of time to fully explore and write up my findings.  There will be many articles dealing with the same topics as I travel the path.

My feeling is that there are good solutions out there, and that with a little work and guidenace an average computer user can have a computer system that does what he wants without breaking the bank.

Now don’t get me wrong; my feeling is that most open source software is crap (but then again, most commercial software is crap)… but since it always seems to be a compromise, you might as well save a little cash since you’ll never really get what you want.

Originally posted 2010-01-12 01:00:12.

Disk Drive Temperature / Airflow

I upgraded both of my workstations (one Windows one Linux) to have a mirror pair as the secondary drive…  which added a third drive to each of the cases (the cases are setup so that you can have five 3.5″ internal drives and four 5.25″ external units)… the 400GB SATA-2 drive in the Windows machine keep producing SMART warnings that it was getting close to the recommended maximum temperature, and I decided it likely had to do with the fact that the power management of the motherboard slowed down the main case fan which reduced the airflow.

The case actually had two cutouts for fans in front of the disk drive array, so I wired up a couple fans for each one off a single power connector, put the fans in and now the drives are running cooler (the 3TB SATA-3 drives in the mirror in the Windows machine are much newer drives and run much cooler).

Keep in mind, that the cooler your drives run, the longer they’ll probably last and the fewer problems you’re going to have — plus when you run drives close to their maximum recommended temperature you’re going to see thermal re-calibrations which are going to make your computer look like it’s hanging or at least stuttering.

While I don’t think you should get crazy with fans, you should insure that any location in the case that has a heat producing component should have airflow — and many fans come with speed adjustments so you can run them at their lowest setting and provide enough airflow while minimizing the fan noise (which can be deafening if you have lots of fans).

One last thing — make sure when you buy fans you buy good quality ball-bearing fans — if you don’t, you’re just wasting money and asking for a fan failure (plus way too much noise).

Originally posted 2013-07-10 08:00:16.

SSH Login Without Password Prompt

Often you have a set of machines you trust implicitly and you’d like to make ssh logins and scp copies less tedious by not having the system prompt you for the password.  It used to be incredibly confusing to manually setup and install the keys on remote machines, now, though with OpenSSH it’s gotten a lot easier.

The first thing you need to do is create public and private keys; to do that you use ssh-key-gen on your machine (you’ll either need to be on the console or have previously made a ssh connection).

For this example, the “local” workstation will be superman, and the remote server will be aries.

roger@superman$ ssh-keygen
Generating public/private rsa key pair.
Enter file in which to save the key (/home/roger/.ssh/id_rsa):
[Press Enter Key]
Enter passphrase (empty for no passphrase):
[Press Enter Key]
Enter same passphrase again:
[Press Enter Key]
Your identification has been saved in /home/roger/.ssh/id_rsa.
Your public key has been saved in /home/roger/.ssh/id_rsa.pub.
The key fingerprint is:
de:ad:be:ef:01:02:03:04:05:06:07:07:09:0a:0b:0c roger@superman

Then we need to copy the public key to the remote host using ssh-copy-id

roger@superman$ ssh-copy-id -i ~/.ssh/id_rsa.pub aries
roger@aries's password:

Finally, we can log onto the remote machine without a password

roger@superman$ ssh aries
Last login: Sun Jan 2 12:12:12 2011 from superman
roger@aries$

You can take a look at the key files that were generated; you can use ssh-copy-id to copy the keys to as many machines as you want; and you can use the same private key file on each of your machines to allow for more seamless access; but you should be aware that you should only place your public key on machines you trust.

NOTE:  If you use ssh-agent (and ssh-add) to manage keys, ssh-copy-id will attempt to access the key from ssh-agent.

Originally posted 2011-01-04 02:00:12.

Vantec Quality

Before I left San Francisco I purchased six Vantec cases.

Two 5.25″ external USB2.0 cases for Blu-Ray ROM devices; and four 2.5″ external USB2.0 cases to put 500GB hard drives in.

I already had the Blu-Ray ROM drives and set out to put those in the cases right when I got them home from Central Computer, but I quickly found out that neither of the cases had the holes tapped for the bolts that held the case closed (and interesting enough, Vantec doesn’t shipped the cases closed up like most vendors).

It was a nightmare trying to deal with Vantec; they sent me two sets of bolts — they just never really could grasp the fact that the cases weren’t tapped — the screws were probably the right ones.  And even worse I’d already exchanged them once (and the second two cases also weren’t tapped).

Anyway, I gave up on trying to get satisfaction and just used some nylon fasteners that I had that seemed to do the job reasonably well — but of course the large white nylon fasteners sticking out the back of a black case was far from attractive.

The 2.5″ cases I packed away and didn’t need those (I actually had some SATA/USB2.0 cases that I was using at that point — but wasn’t willing to pay the ridiculous price to get more of those).

Last week, though, I ordered a couple 500GB Seagate drives on sale.  They arrived yesterday and I went to put them in the cases… The first package had the screw packet and worked great.  The second package didn’t have any screws and had a defect on the finish on the enclosure.  The third and fourth packages had no screws either.  So out of four drives only one had screws — and the screws are a small metric thread (and fairly long with a small diameter head) that I have nothing like.

I contacted Vantec; already knowing what they’d say… so once I dig up my receipt and send it to them I’m sure the fun will start again; the good news is I know that these cases are tapped (since I have two screws I tested all the cases).

It seems to me that Vantec has some rather severe quality issues; and simple things like insuring screws in the package that fit would be resolved by closing the case before packing and shipping it… obviously they want to save a nickle or so — and cost their customers hundreds of dollars in wasted time.

So I’ll not be purchasing any products from Vantec mail order for sure; and if I want to chance it, I’ll open up and inspect the item BEFORE leaving the store.

Originally posted 2010-01-30 01:00:58.

Microsoft Live Essentials

With Windows 7 Microsoft has removed email, instant messaging, address book, calendaring,  and movie maker from the Windows install.  If you run the Windows 7 Upgrade Advisor it will direct you to Live.com (a Microsoft) site for tools that will add back these features to Windows.

Live.com has offered most all of these tools in one form or another for over a year; and for quite some time now the entire suite of tools.

I’ll just quickly list the features:

  • Live Messanger
  • Live Call
  • Live Mail
  • Live Writer
  • Live Photo Gallery
  • Live Movie Maker
  • Live Toolbar
  • Live Family Saftey

Live Messanger is the replacement for Windows Messanger, MSN Messanger it’s substantially the same as what ever Microsoft messanger you might use — with an updated look and feel and of course, new features.

Live Call is Microsoft’s entry into the voice communications market.  I’ve never used it, so I can’t really comment on it.

Live Mail is the replacement for Outlook Express and Windows Mail (for you Vista users).  It somewhat resembles both of it’s predecessors, but carries forward many of the refinements from Windows Mail; and introduces a number of “bugs” that had been stomped out long ago in the code line (I reported several during the BETA — they still haven’t been fixed, and I expect until they annoy someone on the Live Mail team they won’t be).  On feature that has been added that many will find useful is the ability to interface with Hot Mail/MSN Mail/Live Mail web mail directly (at no cost).

Live Writer is a WYSIWYG editor for BLOGing.  It interfaces to Live BLOGs as well as a number of blogging engines and web sites.

Live Photo Gallery is Microsoft’s attempt to get some of the media sharing market.  I don’t use it, but I’m sure they’ve figured out some way to make money from it (like all the others).

Live Movie Maker is the replacement for Windows Movie Maker.  I haven’t used it.  The previous software might be fine for novices; but I prefer to use Final Cut Studio on my Mac; so I don’t think my opinion of this software is relevant to the target audience.

Live Toolbar is like most toolbars, a waste.  Whether it’s invasive like most of them or not I can’t say — I have no need for toolbars; and you probably don’t either.

Live Family Saftey is designed to limit access to questionable internet sites and content.  I’ve never used it; but I would guess like most it errors on the side of caution.

There is also a Microsoft Office Outlook Connector, and Office Live Add-In which provide access to Live features directly from Microsoft Office (why?) that you can read about on your own.

Overall, many of the “free” tools in Microsoft Live Essentials are probably well worth the small amount of time and energy to download and install.  One note, make sure you uncheck the items you don’t want (you can add them later if you change your mind) and pay close attention to the attemp to change (and lock) your browser’s home page and search tool.

Microsoft Live Essentials

Originally posted 2009-11-22 01:00:50.

The Super-Sized iPhone

The iPad is no longer a rumor — Apple’s put a stake in the tablet market.

The one thing Apple seems to be very good at is coming out with an extremely weak offering and making the world thing it’s technology they created and it’s technology you can’t do without…

The iPad isn’t available yet — it’ll be over a month before the WiFi only model ships and over two months before the WiFi + 3G model ships (unlocked, UMTS/HSDPA and GSM/EDGE — no cellular support).

When I read over the press announcements and the specifications on Apple’s site (and looked at the price) my reaction was — it’s slow, has no substantial storage, uses an Apple proprietary processor (derived from an ARM core), has no USB ports, and it’s way too big to fit in my pocket and doesn’t have a keyboard.

I’ll pass.

The press is saying how it’s an Amazon Kindle killer — well, if that’s the best thing that can be said about it maybe Apple has really missed the mark this time.

iPad

Apple iPad

Originally posted 2010-01-29 01:00:07.

OS-X – Desktop Search

I’m posting this mainly to illustrate that not Microsoft alone get’s the importance of desktop search — Apple’s Spotlight provides much the same level of functionality as Windows Search in an equally seamless implementation.

So the question (once again) is why are all the Linux based desktop search solutions pathetic?

Originally posted 2010-07-20 02:00:15.

Microsegmentation

I’ve been reading quite bit on “microsegmentation”; both VMware and Cisco have written quite a bit about it as a core of a software defined data center (SDDC).

It has implications for security, performance, redundancy — you name it.

Microsegmentation has the potential to be a defining characteristic of the datacenters that make cloud computing a reality as well as traditional datacenters located on business campuses.

Right now I’m trying to figure what the best way to actually “play” with the technology is to try and understand the details, and what could be done to optimize the creation (and re-allocation) or segments.

Originally posted 2016-12-15 21:14:44.