Mysql on Michael’s Domain

Reset the admin (user #1) password in Drupal 9

Wed, 01 Jan 2025 00:00:00 +0000

I have been playing around with Drupal 9 and forgot the admin password. If this happens to you, go to the base folder of the drupal installation.

How to reset the admin password in Drupal 9

Sat, 09 Apr 2022 00:00:00 +0000

Go to the base folder of the drupal installation
Generate the hash for your password: php core/scripts/password-hash.sh ’newpasswd'
Execute in mysql: UPDATE users_field_data SET pass=‘hash_result_from_previous_command_goes_here’ WHERE uid = 1;
Clear the cache: DELETE FROM cache_entity WHERE cid = ‘values:user:1’;

mysql server restart

Thu, 11 Sep 2008 00:00:00 +0000

My mysqld runs on Ubuntu Hardy and after replacing the complete mysql data with a dump from another server the “/etc/init.d/mysql stop” command fails, because the system administration account doesn’t work anymore. So I had to recreate it again:GRANT ALL PRIVILEGES ON *.* TO 'debian-sys-maint'@'localhost' IDENTIFIED BY 'password' WITH GRANT OPTION;The password can be obtained from /etc/mysql/debian.cnf.

MySQL install

Wed, 23 May 2007 00:00:00 +0000

After installing the Suse 9 rpm, execute the following commands:sudo /usr/bin/mysql_install_db(Creating default databases & permissions. Apparently the same can be done by “sudo rcmysql start”)sudo /usr/bin/mysqld_safe --user=mysql &(Start the server for the first time)REMEMBER TO SET A PASSWORD FOR THE MySQL root USER ! This is done with: /usr/bin/mysqladmin -u root password 'new-password' /usr/bin/mysqladmin -u root -h hostname password 'new-password'Give all privileges to root and user:/usr/bin/mysql -u root -p Enter password:Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 6 to server version: 4.0.15 Type 'help;' or '\h' for help. Type '\c' to clear the buffer.mysql> GRANT ALL PRIVILEGES ON *.* TO user@localhost IDENTIFIED BY 'Password' WITH GRANT OPTION; Query OK, 0 rows affected (0.00 sec)mysql> GRANT ALL PRIVILEGES ON *.* TO user@'%' IDENTIFIED BY 'Password' WITH GRANT OPTION;Query OK, 0 rows affected (0.00 sec)mysql> GRANT ALL PRIVILEGES ON *.* TO root@localhost IDENTIFIED BY 'Password' WITH GRANT OPTION; Query OK, 0 rows affected (0.00 sec)mysql> GRANT ALL PRIVILEGES ON *.* TO root@'%' IDENTIFIED BY 'Password' WITH GRANT OPTION; Query OK, 0 rows affected (0.00 sec)mysql> quit Bye``/usr/bin/mysqladmin version(later “/usr/bin/mysqladmin -u root -p version” is necessary)/usr/bin/mysqladmin variables(later “/usr/bin/mysqladmin -u root -p variables” is necessary)/usr/bin/mysqladmin -u root -p shutdown(can you shutdown the server?)sudo /usr/bin/mysqld_safe --log &(can you start the server?)ps -A | grep mysql(check whether the server process is running)/usr/bin/mysqlshow -u root -p(show all databases)/usr/bin/mysqlshow -u root -p mysql(show the tables of database “mysql”)To start the mysql daemon at system startup, you should go to the runlevel editor (advanced mode) and toggle the status for the mysql entry of init.d

Resetting the MySQL root password

Thu, 05 Apr 2007 00:00:00 +0000

If you have forgotten your MySQL root password, you can reset it if you have physical access to the machine mysql is running on: Find the .pid file of the mysql process. It is either called mysql.pid or machinename.pid. Kill the mysql process. On my MacOS X server e.g. kill cat /usr/local/mysql-standard-4.0.16-apple-darwin6.6-powerpc/data/localhost.pid`` Restart the mysql server /usr/local/mysql-standard-4.0.16-apple-darwin6.6-powerpc/bin/mysqld_safe --skip-grant-tables & Set the new root password (replace newpassword with the new password!) /usr/local/mysql-standard-4.0.16-apple-darwin6.6-powerpc/bin/mysqladmin -u root flush-privileges password "newpassword" Done!

Migrating the Mad Thought Blog to a new server (mysql, php)

Wed, 04 Apr 2007 00:00:00 +0000

Dump the database data mysqldump –host=localhost –user=root -p journal >journal.sql
Create the databse on the new machine mysql -u root -p CREATE DATABASE journal;
Import the data into the database mysql -p -h localhost journal < journal.sql
Create the user ‘journal’ GRANT ALL PRIVILEGES ON . TO ‘journal’@’localhost’ IDENTIFIED BY ‘journal’ WITH GRANT OPTION;

How to transfer the oligo database from MacVec tor to a web-based blast database

Tue, 06 Mar 2007 00:00:00 +0000

Save all sequences in one flatfile format (NOT MacVector format), e.g. genbank format.2. Copy all sequences to a Linux/UNIX computer and convert them from Mac format to UNIX format: mac2unix *.gb3. Write all sequence fiule names into one file: ls *.gb > oligo.lst4. Convert all sequences into one file of concatenated fasta entries using EMBOSS: seqret -sequence @oligo.lst -osformat fasta. Call the output file “mcbl_oligo_db"5. Put this fasta file into the blast web servers database directory (…/blast/db)6. Format the database: formatdb -i mcbl_oligo_db -p F -o T7. Edit …/blast/blast.html by adding the new database name8. Edit …/blast/blast.rc by adding the new database name

Migrating my old mysql blog database to a new blog software (PluggedOut)

Tue, 06 Mar 2007 00:00:00 +0000

We updated my server from SuSE 9.3 to 10.1. php5 is the default on 10.1 and my blog software broke. As my blog software is not anymore maintained, I had to switch to another and I selected PluggedOut . The mysql database structures were quite different and this is what I did to do the conversion:First I dumped the old database into textfiles:mysqldump -u root -p --tab=/home/jeltsch/temp --fields-terminated-by=| --lines-terminated-by=# journalThen I opened the textfiles in a spreadsheet application and added the necessary columns and fixed the formats. Then I exported into a csv file and imported back into the new database:mysql -u root -p pluggedoutmysql> DELETE FROM blog2_entries;mysql> OPTIMIZE TABLE blog2_entries;mysql> WARNINGS;mysql> LOAD DATA INFILE '/home/jeltsch/export.csv' INTO TABLE blog2_entries FIELDS TERMINATED BY ',';The WARNINGS command shows you when there are problems. Mostly they were related to the field delimiter (comma). I had to escape all commas, that were not field delimiters (,). I also needed to fix the date format (swap month and day). Since the categories were maintained in a separate table, I recreated a csv file by hand and set all entries to belong to the category “computer”. This .csv file was pretty simple:1,1,22,2,23,3,24,4,2 etc.mysql> DELETE FROM blog2_entry_categories;mysql> OPTIMIZE TABLE blog2_entry_categories;mysql> LOAD DATA INFILE '/home/jeltsch/cat.csv' INTO TABLE blog2_entry_categories FIELDS TERMINATED BY ',';

How to backup mysql databases (mysqlhotcopy, mysqldump)

Sat, 16 Dec 2006 00:00:00 +0000

There are different possibilities. If you have access to the machine where mysql is running, you should use:mysqlhotcopy On our RedHat 8 server you just type:/usr/bin/mysqlhotcopy --user=root --password=sdjksjd journal /path/to/backup/directory Alternatively:/usr/local/mysql/bin/mysqldump --user=username -p phpgedview >phpgedview The path of the command is specific for the mysql install on a MacOS X machine.If you want to back up from another machine you can use the mysqldump command: mysqldump --host=hostname_or_ipaddress --user=username -p phpgedview >phpgedview This example backs up the database phpgedview which is on the machine hostname_or_ipaddress.The actual database files are in subdirectories in /var/lib/mysql in case you don’t remember their names.To automatically backup a database via the network you can put a file with the following content to the /etc/cron.hourly directory:!/bin/sh mysqldump --host=hostname_or_ipaddress --user=USER -pPASSWORD journal >mysqldump_journal This would create every hour a fresh backupfile called mysqldump_journal in the /etc/cron.hourly directory.

Adding a new user to MySQL and other basic mysql commands

Mon, 18 Sep 2006 00:00:00 +0000

Crontab entry to backup all mysql databases to a file every midnight:0 0 * * * mysqldump -u mjeltsch -h localhost --all-databases | gzip -9 > /home/mjeltsch/Documents/mysqldump.gz > /dev/nullGranting privileges to users connecting from localhost:GRANT ALL PRIVILEGES ON *.* TO 'michael'@'localhost' IDENTIFIED BY 'password' WITH GRANT OPTION;Granting privileges to users connecting from everywhere:GRANT ALL PRIVILEGES ON *.* TO 'michael'@'%' IDENTIFIED BY 'password' WITH GRANT OPTION;Show all available databases:SHOW DATABASES;Show all entries of the table “users”:SELECT * FROM users;Load database “phpgedview”:USE phpgedview;Create a new database named “phpgedview”:CREATE DATABASE phpgedview;Delete the database named “phpgedview”:DROP DATABASE phpgedview;Start mysql client as user michael and user database “phpgedview”:mysql –user=michael -p phpgedviewDelete the user “test”:mysql> use mysql;mysql> delete from user where user=‘test’;mysql> FLUSH PRIVILEGES;Changing the password for the user phpgedview being user root (this works also for changing the password for root):/usr/bin/mysql -u root -pSET PASSWORD FOR phpgedview@“localhost” = PASSWORD(‘NewPassWord’);After installing the Suse rpm for mysql, execute the following commands:sudo /usr/bin/mysql_install_dbThis creates the default databases & permissions. Apparently the same can be done by:sudo rcmysql startUsing SuSE you should use the Yast runlevel editor to start the mysql server automatically at boot time. To start the mysql server manually:sudo /usr/bin/mysqld_safe --user=mysql &REMEMBER TO SET A PASSWORD FOR THE MySQL root USER ! This is done with:/usr/bin/mysqladmin -u root password 'new-password'If you access the mysql server from another machine you need to specify the hostname:/usr/bin/mysqladmin -u root -h hostname password 'new-password'Give all privileges to root and user:mcblpc2:/home/user /usr/bin/mysql -u root -pEnter password:Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 6 to server version: 4.0.15 Type 'help;' or '\h' for help. Type '\c' to clear the buffer.mysql> GRANT ALL PRIVILEGES ON *.* TO user@localhost IDENTIFIED BY 'Password' WITH GRANT OPTION; Query OK, 0 rows affected (0.00 sec)mysql> GRANT ALL PRIVILEGES ON *.* TO user@'%' IDENTIFIED BY 'Password' WITH GRANT OPTION; Query OK, 0 rows affected (0.00 sec)mysql> GRANT ALL PRIVILEGES ON *.* TO root@localhost IDENTIFIED BY 'Password' WITH GRANT OPTION; Query OK, 0 rows affected (0.00 sec)mysql> GRANT ALL PRIVILEGES ON *.* TO root@'%' IDENTIFIED BY 'Password' WITH GRANT OPTION; Query OK, 0 rows affected (0.00 sec)mysql> quit ByeCheck the mysql version:/usr/bin/mysqladmin -u root -p version" is necessaryCheck the mysql variables:/usr/bin/mysqladmin -u root -p variablesShut down the mysql server:/usr/bin/mysqladmin -u root -p shutdownCheck whether the server can be started:sudo /usr/bin/mysqld_safe --log &Show all databases:/usr/bin/mysqlshow -u root -pShow the tables of database “mysql”:/usr/bin mysqlshow -u root -p mysqlShow the columns of the table named ’tablename’:show columns from tablename;Remove whitespaces from the column named ‘columnname’ in the table named ’tablename’:update tablenamesetcolumnname= trim(' ' fromcolumnname);Remove trailing line breaks from the column named ‘columnname’ in the table named ’tablename’ (you might need to execute this repeatedly for some strange reason to remove all carriage returns and line feeds):update tablenamesetcolumnname= trim(trailing '\n' fromcolumnname);update tablenamesetcolumnname= trim(trailing '\r' fromcolumnname);