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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.
Forgotten / lost MySQL root password

OK - I admit it. A very silly thing to do. I had lost / forgotten my MySQL password, and needed to do some admin work.

1. Log in to server as root

2. Stop the database server
  /etc/init.d mysql.server stop

3. Start the database server without password check
  /usr/local/mysql/bin/mysqld_safe --skip-grant-tables  

4. Manually change the grant tables
  /usr/local/mysql/bin/mysql -uroot
  use mysql;
  update user set password=PASSWORD("newpasswordhere") where user="root";
  flush privileges;
  quit


5. logout (which nicely kills the backgrounded daemon)

6. Log in as root again

7. Restart the server normally
  /etc/init.d mysql.server stop

8 Logout
(written 2015-05-16)

 
Associated topics are indexed as below, or enter http://melksh.am/nnnn for individual articles
S161 - Data Access and Security in MySQL
  [192] Current MySQL and PHP paths and upgrades - (2005-01-28)
  [193] The wrong MySQL - (2005-01-29)
  [401] What is an SQL injection attack? - (2005-08-02)
  [535] MySQL permissions and privileges - (2005-12-20)
  [647] Checking for MySQL errors - (2006-03-15)
  [947] What is an SQL injection attack? - (2006-11-27)
  [1131] MySQL - Password security (authentication protocol) - (2007-04-02)
  [2204] Images in a database? How big is a database? (MySQL) - (2009-05-28)
  [2263] Mysqldump fails as a cron job - a work around - (2009-06-30)
  [2647] Removing duplicates from a MySQL table - (2010-02-22)
  [3270] SQL - Data v Metadata, and the various stages of data selection - (2011-04-29)
  [4390] Checking MySQL database backups have worked (not failed) - (2015-01-10)
  [4406] Fixing damaged MySQL tables - Error 1712 and Error 2013 - (2015-01-25)
  [4481] Extracting data from backups to restore selected rows from MySQL tables - (2015-05-01)
  [4491] Web Server Admin - some of those things that happen, and solutions - (2015-05-10)


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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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