Training, Open Source Programming Languages

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Our email: info@wellho.net • Phone: 01144 1225 708225

 
For 2021 - online Python 3 training - see ((here)).

Our plans were to retire in summer 2020 and see the world, but Coronavirus has lead us into a lot of lockdown programming in Python 3 and PHP 7.
We can now offer tailored online training - small groups, real tutors - works really well for groups of 4 to 14 delegates. Anywhere in the world; course language English.

Please ask about private 'maintenance' training for Python 2, Tcl, Perl, PHP, Lua, etc.
Impact Engineering and Backscatter

Here are two new technical terms for you that I've run across in the last few days. Can you guess what they refer to, or do you know them already?

Impact Engineering .... hitting a piece of equipment, typically but not always with a hammer or fist, in order to persuade it to work.

Backscatter Those irritating emails that tell you that your email to xxxxx could not be delivered ... when you have never even written to xxxxx in the first place.

Backscatter is typically caused when mail servers reject bulk emails that have been sent out by a 'spammer' or spamming program that's pretending to be you in their email address. As postmaster for a number of domains, my mailbox tends to collect quite a bit of backscatter; some of the spammers make up "from" addresses at known domains and I get those in addition to the more sophisticated ones that have hijacked one of our true addresses.

Recently, I've noticed a disturbing trend in services which are offering to protect their clients from spam by asking the originator to confirm that they're genuine. The very fact that these services ask means that they're highly sceptical about the original email, so they KNOW they're generating backscatter. "An unfortunate side effect of our system" one wrote to me. Hmm; if the service knows that the sender address is probably forged, isn't it generating an unsolicited email when it writes to the true owner of that address to ask about it>. And if the service is charging clients for its automated activity , doesn't that make its backscatter emails into unsolicited bulk commercial email?

Yes, these people believe that it's all right for them to send out spam ... in the very act of discouraging others from doing so. One rule for you, and another for me? Ick!
(written 2007-01-16)

 
Associated topics are indexed as below, or enter http://melksh.am/nnnn for individual articles
G909 - Well House Consultants - Spam, Spamming and Spammers
  [259] Responding to spam - (2005-03-27)
  [268] Information request forms, cleaning up spam - (2005-04-05)
  [276] An apology to Mr Boneparte - (2005-04-11)
  [338] OO techniques are hard to teach - (2005-06-06)
  [347] Frightening and from-friend viruses and spams - (2005-06-14)
  [417] Telephone Preference Service - we're registered - (2005-08-17)
  [495] More spam - a success story - (2005-11-13)
  [872] Email metrics - (2006-09-20)
  [1115] Unexpected visitors to our site - (2007-03-22)
  [1523] Ive just received an email from myself. Should I be worried? - (2008-01-29)
  [1532] Comment spam blocked. Please comment via Forums - (2008-02-05)
  [1763] Co-operating to save, yet we dont - (2008-08-21)
  [1817] Marc Schneider is still having email trouble - (2008-09-30)
  [1978] From spam to mod_alias - finding resources - (2009-01-05)
  [2019] Baby Caleb and Fortune City in your web logs? - (2009-01-31)
  [2177] Preventing forum spam - checks at sign up - (2009-05-12)
  [2179] Offers that I can refuse - (2009-05-12)
  [2276] Who is Marc Schneider of Multilingual Search Engine Optimization Inc - (2009-07-10)
  [2398] Websitemediasolution and a goldfish called Carl Johnson - (2009-09-06)
  [2697] Email metrics and filtering - (2010-03-28)
  [2884] Hotlinked images onto adult material sites - (2010-07-23)
  [3016] The legal considerations of your web presence - revisited - (2010-10-26)
  [3166] Well house is strong - confirmed? - (2011-02-11)
  [3190] What do the following web sites have in common? - (2011-03-03)
  [3316] Twitter Phishing Trips ... and a great new alert service - (2011-06-04)
  [3352] World Trade Register - Certainly NOT worth 2985 Euros. - (2011-07-09)
  [3506] Cold call contacts - preference services and turning off spam sales approaches - (2011-11-03)
  [3661] Keeping forum and blog comments clean - (2012-03-19)
  [3910] Identifying your real customers and keeping them well informed fast - (2012-11-02)
  [3912] Sand to Arabia, Coals to Newcastle or Woodburners to Russia - (2012-11-04)
  [3946] Moving from a warning system to a control system - PHP, forum spammers - (2012-12-07)
  [4135] Introducing your product to Well House Consultants - single, personally tuned email please - (2013-07-08)
  [4315] Welcoming genuine forum posters quickly - but turning away off topic advertisers - (2014-11-16)
  [4520] No cold sales calls please - but delighted to hear from others! - (2015-09-29)


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Learnt in London - Ruby, Martini, Coral and the Core
What the customer is looking for - effective training
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Impact Engineering and Backscatter
Python Qt, wX, TkInter, and Jython - training??
Longer hours and better value courses
The new web site look spreads
Empty at Easleigh, Missing at Melksham, Overflowing at Oldfield
Chronic fatigue help - a new discussion forum
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This is a page archived from The Horse's Mouth at http://www.wellho.net/horse/ - the diary and writings of Graham Ellis. Every attempt was made to provide current information at the time the page was written, but things do move forward in our business - new software releases, price changes, new techniques. Please check back via our main site for current courses, prices, versions, etc - any mention of a price in "The Horse's Mouth" cannot be taken as an offer to supply at that price.

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