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For 2023 (and 2024 ...) - we are now fully retired from IT training.
We have made many, many friends over 25 years of teaching about Python, Tcl, Perl, PHP, Lua, Java, C and C++ - and MySQL, Linux and Solaris/SunOS too. Our training notes are now very much out of date, but due to upward compatability most of our examples remain operational and even relevant ad you are welcome to make us if them "as seen" and at your own risk.

Lisa and I (Graham) now live in what was our training centre in Melksham - happy to meet with former delegates here - but do check ahead before coming round. We are far from inactive - rather, enjoying the times that we are retired but still healthy enough in mind and body to be active!

I am also active in many other area and still look after a lot of web sites - you can find an index ((here))
Wireless hotel tips - FTP and Skype connections failing

I'm on line this week through a Spectrum interactive account, who's web site tells me that they have won a contract to supply BAA at Heathrow Terminal 5 and that they have an exclusive 7 year deal at Travelodge, where I have been staying. It's not all been a bed of roses - quite apart from a major loss of service which I've briefly comment on elsewhere, I've had a couple of other issues that I thought I would comment on as clearly this is a supplier who intends to be around in a big way, and doesn't appear to be providing a transparent connection.

a) FTP. Upload connections are being lost at the start of transfers; the solutions I have been using is to use scp instead. Thus

[within ftp]
puts xz.tar

has been replaced by
[at command line]
scp xz.tar whc@www.wellho.net:/home/whc/httpdocs/pix/xz.tar

b) Skype - the Skype port appears to be blocked. Perhaps SpectrumInteractive have an arrangement with one of the telecoms companies that provides phone service to some Travelodge locations to do this - but here at Swavesey there are no phones in the rooms and even the public phone has been removed. I guess most of us have a mobile these days ....

c) I have two laptops here with me. On the good side, I'm able to log either of them in as it appears that my signup hasn't been restricted to a single specific mac address as I find with many other Wifi service suppliers. Slightly less positive (but to be expected, I suppose, for security reasons) I can't use the hotel's wireless hub to communicate between my 2 computers even though they're both on the same subnet. Solution - software that lets me computer to computer network, in effect setting up one of the machines as a wireless base station itself!
(written 2007-10-26, updated 2007-11-20)

 
Associated topics are indexed as below, or enter http://melksh.am/nnnn for individual articles
A163 - Web Application Deployment - Network Configuration and Security
  [11] A bolt of lightning on Multicasting - (2004-08-11)
  [37] Security and Safety - (2004-09-03)
  [267] Searching security holes - (2005-04-04)
  [332] Looking up IP addresses - (2005-06-01)
  [506] What are DHCP and DNS? - (2005-11-27)
  [511] Domain Forwarding - 2 ways of doing it - (2005-11-29)
  [1073] Heartbeat script in Perl - (2007-02-09)
  [1666] Slow boot and terminal start on Linux boxes - (2008-06-05)
  [1712] As different as night and tyres - (2008-07-18)
  [1904] Ruby, Perl, Linux, MySQL - some training notes - (2008-11-23)
  [2052] How was my web site compromised? - (2009-02-24)
  [2489] Parallel Pinging, using Python Threads or Expect spawn lists - (2009-11-02)
  [3448] Checking all the systems on a subnet, using Expect and Tk - (2011-09-18)
  [4134] Setting up your MacBook Air as a mobile broadband router - (2013-07-07)

A101 - Web Application Deployment - Linux -An Introduction For Users
  [73] vi - full circle - (2004-10-04)
  [74] pushd and popd - (2004-10-05)
  [152] Aladdin, or careful what you wish. - (2004-12-15)
  [249] An easy way out - (2005-03-17)
  [430] Linux commands - some basics - (2005-08-31)
  [431] File permissions of Linux and Unix systems - (2005-08-31)
  [593] Finding where the disc space has gone - (2006-02-06)
  [659] Web Application Components - (2006-03-28)
  [679] More or less on the edge of the page - (2006-04-11)
  [703] Copying files and preserving ownership - (2006-04-28)
  [710] Linux training Glasgow, Python programming course Dundee - (2006-05-05)
  [711] THE home directory or MY home directory - (2006-05-06)
  [749] Cottage industry or production line data handling methods - (2006-06-07)
  [984] Cardinal numbers and magic numbers - (2006-12-14)
  [1012] Moving files between Windows / DOS and Linux / Unix - (2006-12-30)
  [1013] Copy multiple files - confusing error message from cp - (2006-12-30)
  [1068] ls -l report, Linux / Unix - types and permssions - (2007-02-06)
  [1259] Where am I and how did I get here? - (2007-07-05)
  [1287] Work and play at Well House Manor - Football and Shell Shortcuts - (2007-08-02)
  [1288] Linux run states, shell special commands, and directory structures - (2007-08-03)
  [1366] awk - a powerful data extraction and manipulation tool - (2007-09-25)
  [1438] Copy and paste / cut and paste and other vi techniques - (2007-11-20)
  [1527] Selecting file names in a shell - one word or another - (2008-02-02)
  [1651] ls command - favourite options - (2008-05-23)
  [1764] Yank and Push - copy and move in vi - (2008-08-21)
  [1803] FTP passive mode - a sometimes cure for upload hangs - (2008-09-20)
  [1893] Some Linux and Unix tips - (2008-11-18)
  [1897] Keeping on an even keel - (2008-11-21)
  [1902] sstrwxrwxrwx - Unix and Linux file permissions - (2008-11-23)
  [2201] Running straight from the jar, but not from a tar - (2009-05-26)
  [2203] Always use su with minus. And where do programs come from? - (2009-05-27)
  [2299] How much space does my directory take - Linux - (2009-07-20)
  [2300] What does x on a linux directory mean? - (2009-07-21)
  [2479] Accidentally typed ci rather than vi? - (2009-10-27)
  [2494] Making Linux Politically correct - (2009-11-06)
  [2636] Linux - useful tips including history and file name completion - (2010-02-15)
  [2831] Recording (a macro) in vi - (2010-06-27)
  [3179] Oops - I typed ci not vi, and have lost my file ... - (2011-02-21)
  [3256] Displaying a directory or file system tree - Linux - (2011-04-22)
  [3791] The Kernel, Shells and Daemons. Greek Gods in computing - (2012-07-01)
  [3819] Packing a tar, jar or war file - best practise - (2012-07-26)


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What is Expect?
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Sparse and Greedy matching - Tcl 8.4
Buffering of inputs to expect, and match order
Tcl / regsub - changing a string and using interesting bits
What is Expect?
Wireless hotel tips - FTP and Skype connections failing
Reading from another process in Tcl (pipes and sockets)
Away or home - which do I prefer?
Sorting in Tcl - lists and arrays
Tcl - global, upvar and uplevel.
Square Bracket protection in Tcl
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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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