setup

http://www.mysql.com

/var/lib/mysql/ 
/var/run/mysqld/

/usr/bin/mysqld_safe 
/usr/libexec/mysqld 

--basedir=/usr 
--datadir=/var/lib/mysql 
--log-error=/var/log/mysqld.log 
--socket=/var/lib/mysql/mysql.sock 
--pid-file=/var/run/mysqld/mysqld.pid 
--user=mysql 
port 3306
mysql -S/var/lib/mysql/mysql.sock -ptest

MYSQL commands

service mysqld restart
service mysqld status -- returns Process ID
find / -name mysql.sock
ls -l /var/run
netstat -a | grep mysqld
cat /root/.mysql_history|more

/usr/libexec/mysqld --skip-grant-tables --user=mysql 
	--skip-grant-tables  -- start demon; supposed to allow universal access

******* THIS WORKED! **************
/usr/bin/mysqld_safe --user=mysql --socket=/var/lib/mysql/mysql.sock --pid-file=/var/run/mysqld/mysqld.pid --datadir=/var/lib/mysql --skip-grant-tables --skip-networking &
	This lets me connect to mysql.

/usr/bin/mysqld_safe --user=mysql --socket=/var/lib/mysql/mysql.sock --pid-file=/var/run/mysqld/mysqld.pid --datadir=/var/lib/mysql --skip-networking &

/usr/bin/mysqld_safe --user=mysql --skip-name-resolve --skip-host-cache &
/usr/bin/mysqld_safe --debug=d,general,query &

 /usr/libexec/mysqld --skip-name-resolve &
 
mysql> update user set password=PASSWORD("sitepassword") where User='root';
mysql> SET PASSWORD FOR root@localhost=PASSWORD('sitepassword');

mysqladmin -u root password sitepassword
mysqladmin --no-defaults -u root version

mysql -u root --password='sitepassword' 
mysql -uroot -psitepassword


*** mysql_install_db --user=mysql
  This may have been stupid.  user=root might
  have been smarter.  I think this is where a lot
  of my troubles came from.  Maybe.

mysqladmin

/usr/bin/mysqladmin -u root password 'sitepassword'
/usr/bin/mysqladmin --socket=/var/lib/mysql/mysql.sock -u root password 'sitepassword'
/usr/bin/mysqladmin -u root -h tighar password 'sitepassword'
/usr/bin/mysqladmin -u root -h 138.92.13.17 password 'sitepassword'

Alternatively you can run:

   /usr/bin/mysql_secure_installation

which will also give you the option of removing the test databases and anonymous user created by default. This is strongly recommended for production servers.

Setting root password inside mysql

UPDATE mysql.user SET Password=PASSWORD('sitepassword') WHERE User='root';
FLUSH PRIVILEGES;

SET PASSWORD FOR 'root'@'localhost' = PASSWORD('sitepassword'); 

MYSQL CREATE USER
-----------------
create user newuser identified by 'mpassword' 
GRANT ALL PRIVILEGES ON *.* TO 'newuser'@'localhost' IDENTIFIED BY 'mpassword' WITH GRANT OPTION;
GRANT ALL PRIVILEGES ON *.* TO 'newuser'@'%' IDENTIFIED BY 'mpassword' WITH GRANT OPTION;

mysql error 1045

"mysqladmin: connect to server at 'localhost' failed"
"ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: NO)"
"'Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock'"
"BHost 'localhost' is not allowed to connect to this MySQL serverConnection"

This is a puzzler. I've solved it several times–and then caused it again. “I'm not all done with stupid yet. There's more where that came from.”

Sometimes I've had it when calling mysql from a terminal, other times with phpMyAdmin.

make sure port 3306 is open
have right sock location set in configuration files
for phpMyAdmin, use a browser that does not capitalize my name (!). This is a new one for me. Firefox changes “moleski” to “Moleski” for me–so nice! But the login form for phpMyAdmin is Case SensiTive.
make sure ownership and permissions are ok for phpmyadmin.

The mysqld log gives some helpful information about what it thinks it is doing:

090704 19:01:52  InnoDB: Started; log sequence number 0 43655
090704 19:01:52 [Note] /usr/libexec/mysqld: ready for connections.
Version: '5.0.77'  socket: '/var/lib/mysql/mysql.sock'  port: 3306  Source distribution
090704 23:05:33 [Note] /usr/libexec/mysqld: Normal shutdown

phpmyadmin config.inc.php

$cfg['Servers'][$i]['host'] = 'localhost';
$cfg['Servers'][$i]['connect_type'] = 'tcp';
$cfg['Servers'][$i]['socket'] = '/var/lib/mysql/mysql.sock';
$cfg['Servers'][$i]['auth_type'] = 'cookie';
$cfg['Servers'][$i]['extension'] = 'mysqli';

mysqldump backup

cd /usr/local/mysql/backup

mysqldump --password= ... --add-drop-database --all-databases > 2010-06-11.txt

mysqldump --password= ... --add-drop-database --all-databases --xml > file.xml

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