Difference between revisions of "Dept. MySQL Server"

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{{messagebox|'''Note 3:'''  You cannot ''ssh'' into mysql.cs.jhu.edu.  You must connect to the MySQL server using MySQL commands or a MySQL client program, using the MySQL account we would provide you.|warning}}
 
{{messagebox|'''Note 3:'''  You cannot ''ssh'' into mysql.cs.jhu.edu.  You must connect to the MySQL server using MySQL commands or a MySQL client program, using the MySQL account we would provide you.|warning}}
  
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{{messagebox|'''Note 4:'''  When your MySQL account is created, you will receive a database whose name is the same as your MySQL account.|warning}}
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{{messagebox|'''Note 4:'''  When your MySQL account is created, you will receive a database whose name is ''the same as'' your MySQL account.|warning}}
  
 
{{messagebox|'''Note 5:'''  Later, if you need an ''additional'' database set up at some point for your MySQL account, send an email to {{mailto|support}} letting us know your MySQL username and the ''proposed name'' of your database.|warning}}
 
{{messagebox|'''Note 5:'''  Later, if you need an ''additional'' database set up at some point for your MySQL account, send an email to {{mailto|support}} letting us know your MySQL username and the ''proposed name'' of your database.|warning}}

Revision as of 15:20, 12 October 2022

The CS Dept has a MySQL server available. Point your MySQL client to mysql.cs.jhu.edu

You will need a CS MySQL account for access.

Note 1: The 315/415/615 Databases courses use a completely different MySQL server called dbase.cs.jhu.edu. If you are taking the Databases class, you will need to get account info and instructions from your TA.

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Note 2: Only those with CS Linux accounts will be able to apply for a MySQL account for our mysql.cs.jhu.edu server.

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Note 3: You cannot ssh into mysql.cs.jhu.edu. You must connect to the MySQL server using MySQL commands or a MySQL client program, using the MySQL account we would provide you.

warning

Note 4: When your MySQL account is created, you will receive a database whose name is the same as your MySQL account.

warning

Note 5: Later, if you need an additional database set up at some point for your MySQL account, send an email to support@cs.jhu.edu letting us know your MySQL username and the proposed name of your database.

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Connecting to our MySQL server

Once you have your CS Department MySQL account, you can connect to the mysql.cs.jhu.edu server with:

mysql -u your-mysql-username -p -h mysql.cs.jhu.edu

You will be prompted for your MySQL password.

Changing Your MySQL Password

MySQL passwords are separate from the passwords for our Linux clients; changing your Linux password will not change your MySQL password (and vice versa).

To change your MySQL password, connect to mysql.cs.jhu.edu with a MySQL client, and run the following command: 

SET PASSWORD = PASSWORD('your-new-password');

Replace your-new-password with what you want your password to be.

Please be aware that many MySQL clients keep a record of SQL queries. You should clear that record to keep your MySQL password safe. On Linux systems, the command line MySQL client keeps its statement log in ~/.mysql_history; we recommend removing that file after changing your MySQL password. Other clients may store their history in other places.