Entries Tagged as 'Communications'

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.

Mobile Enabled

I’ve had a fair number of requests from individuals who wanted to be able to view my web site and BLOG on their cell phones. Changing my web site to support micro-browsers will be a fair amount of work; but I’ve installed a mobile friendly theme on my BLOG which should auto-magically detect most mobile browsers and provide you with a rendering of the site that you can navigate and read on your phone (or other hand held device). I’ve tested it on a Windows Mobile 6.5 device, and it seems to work. I’ve also tested it with a number of WAP emulators (Nokia N70, Samsung z105, Sony Ericson k750i, Motorola v3i, and Sharp GX-10) and it’s acceptable. For any real mobile browser (iPhone, Blackberry, etc) it should be fine. I will consider how best to support mobile browsers from my web site, but that won’t be something I change very soon.


http://m.rogersoles.com/ or http://m.blog.rogersoles.com/ should get you to the mobile site; but if the plug-in that’s doing the work is doing it’s job your mobile browser should be automatically detected even using the desktop address.

Originally posted 2010-03-23 01:30:17.

Federal Express is a SPAMmer

Yesterday evening I received an Unsolicited Commercial Email (UCE, aka SPAM) from Federal Express in violation of the California Professions and Business Code Section 17538.45.

Apparently Federal Express has taken to harvesting email addresses used in requesting tracking services and subscribing them to their marketing mailings lists without obtaining the permission of the owner of the email address (California law prohibits OPT-OUT policies, and requires that advertisers use OPT-IN methods).

Not only have I send a demand to Federal Expresses marketing campaign company and Federal Express demanding immediate payment of the fifty dollar fine specified by California Law; but I will no longer do business with Federal Express PERIOD.  That means I do not ship via FedEx, and I do not accept packages via FedEx, which means I don’t deal with vendors that use FedEx.

Originally posted 2009-02-19 01:00:25.

Disposable EMail Addresses

DEAs = Disposable EMail Addresses; they’re useful for you to provide to a vendor so that you can track the use of the email address and delete it if you find it’s abused or chose to no long do business with whom you gave it to.

Just like Virtual Credit Card numbers give you control over payment to merchants, Disposable EMail Addresses give you control over your inbox.

It’s a great way to fight SPAM and identify SPAMmers.

If you don’t happen to own your own domain were you can create “forwarding” addresses, there are a number of web sites that provide you with the ability to create and manage DEAs — just do an internet search.  If you can’t find one, let me know and I’ll give you some pointers.

Originally posted 2008-12-19 12:00:36.

Employment Contact

For those who have located my résumé on line, please note that the email address that is on the résumé will generate a “Mail Delivery System” failure message; in that message will be the URL for my Employment Contact form.

It is truly unfortunate, but the amount of email (SPAM) I’m getting on these address that’s actually getting through the filters is staggering.  It appears one of the “hot” new jobs is people “stealing” email addresses and using them to send unsolicited commercial email too — and many companies (like Comcast; case ID NA0000014230535) don’t want to enforce their acceptable use policies for their [business] customers.

You can bypass getting the message and just use a contact form I’ve setup.

The contact form URL is http://rogersoles.com/employment, that will redirect you to a special contact form here on my BLOG.

I will respond to you from a disposable email address.

Originally posted 2010-04-01 01:15:33.

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.

nex·us [ néksəss ]

According to Encarta® World English Dictionary [North American Edition]

NOUN

  1. connection: a connection or link associating two or more people or things
  2. connected group: a group or series of connected people or things
  3. center: the center or focus of something
  4. cell biology specialized part of cell membrane: a specialized area of the cellular membrane that helps cells to communicate or adhere
[ Mid-17th century. < Latin nex-, past participle of nectere “bind” ]

It comes to English from Latin… and it comes to Google (they say) from there as well.

However, in the marketing of the nexus one Android cell phone Google now faces two growing problems.

The family of Philip K Dick (16-Dec-1928 – 2-Mar-1982), Do Androids Dream of Electric Sheep? (1968), have issued Google a cease and desist order alleging that the use of “nexus one” infringes on the copyright of their father’s work.

Whether or not there’s any validity to the claim, at most it’s a simple issue Google can throw money (or lawyers) at and resolve it without too much ado.

Yet, a bigger problem for Google is that the nexus one is being marketed directly to consumers; and Google isn’t know for customer service.  In fact, Google is know only for totally automated systems; systems that are not likely to appease consumers who spend $529.00 on a device that doesn’t do everything they believe it should do.

A growing trend of dissatisfied users are posting everything from rants about issues with T-Mobile’s upgrade policies to slow delivery and issues with errors on handsets when they’re used… and no response from Google.

Hacking a cell phone might be a good area for community support; but cell phone users are accustomed to (and expect) support from the manufacturer and / or cellular carrier.

Admittedly Google doesn’t have a high level of customer service they need to provided to be as good as most cellular vendors — but when they pitted themselves against Apple, they set reasonably high expectations from consumers.

Welcome to the real world Google — you don’t need to worry nearly as much about Wall Street as Main Street now!

Originally posted 2010-01-09 02:00:23.

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.

Windows Live Essential 2011 – Live Mail

Or perhaps better titled: Why I continue to use a product I hate.

When Outlook Express debuted many years ago Microsoft showed the possibility of creating a email reader for Windows that was clean,simple, and powerful… and for all the problems of Outlook Express it worked.

When Microsoft shipped Windows Vista they abandoned Outlook Express in favor of Windows Mail; largely it appeared to be the same program with a few changes to make it more Vista-like.

But not long after Windows Mail hit the street, Microsoft decided to launch Windows Live Mail, and what appears to be a totally new program modeled after Outlook Express / Windows Mail was launched.  I say it was new because many of the bugs that were present in the BETA of Windows Live Mail were bugs that had been fixed in the Outlook Express code line years before (as an interesting note, several of the bugs I personally reported during the BETA of Windows Live Mail are still present in the newest version – 2011).

The previous version of Live Mail was tolerable; most of the things that were annoying about it had fairly simple ways to resolve them — and in time, maybe we’ll all figure out ways to work around the headaches in 2011; but I just don’t feel like putting so much effort into a POS software package time and time again…

And for those of you who say it’s “FREE” so you get what you get, I’d say, no — it’s not exactly free… Microsoft understands that software like this is necessary in order to have any control over user’s internet habits, so it isn’t free — you’re paying a “price” for it.

Plus, there are other alternatives… Thunderbird for one.

Why don’t I use Thunderbird… simple, there is one “feature” lacking in Thunderbird that prevents me from embracing it.  You cannot export account information and restore it.  Sure Mozbackup will let you backup a complete profile and transfer it to another machine — but I want access to individual email accounts.

Why?  Well, here’s the scenario that I always hit.

I travel, and I tend to take my netbook with me when I travel — and often I’m using my cell phone to access the internet… while it’s “fast” by some standards… if you were to re-sync fifty email accounts each with a dozen IMAP folders, you’d take all day.  Further, most of those email accounts are uninteresting on a day-to-day basis, particularly when I travel — I only want to access a couple of those accounts for sure, but I might want to load an account on demand (you never know).  What I do with Live Mail is I have all the IAF files for all my email accounts stored on the disk (I sync them from my server), and I setup the mail program by loading the three or four that I use routinely, the others I only load as I need them, and I remove them from Live Mail when done.

OK — so that doesn’t fit you… here’s another.

You’ve got several computers, and you’d like to setup your email quickly and painlessly on all of them… but you don’t need all your email accounts on everyone of them — plus you add and remove accounts over time.  Again, Live Mail and it’s import/export handles this nicely.  You simply export a set of IAF files, and then import the ones you want on each machine.

The question is why doesn’t Thunderbird have this ability?

Well, there was a plug in for an older version of Thunderbird that did kinda this; of course it didn’t work that well for the version it was written for, and it doesn’t work at all for newer versions.

One more that I consider an annoyance (but it’s probably slightly more than that) is that there is no easy way in Thunderbird to change the order of accounts in the account window — and they’re not order alphabetically (that would make too much sense), they’re ordered chronologically (based on when you created them).  So you can re-order them, if you delete the accounts and add them back in the order you’d like them to appear; but wait, you can’t add an account any way in Thunderbird by type in all the information again.

And if you’re thinking, OK so write a plug-in that manages account ordering and import/export.  Sure, that would be the “right” thing to do if Thunderbird really had an interface to get to that information easily — but no, it appears you’d have to parse a javaScript settings file… oh joy.

These should be core features of Thunderbird; and in my mind they are huge barriers to wide acceptance.

Originally posted 2010-11-12 02:00:32.