Difference between revisions of "MySQL"
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This page contains some notes on using the MySQL database server on a '''NST''' probe. | This page contains some notes on using the MySQL database server on a '''NST''' probe. | ||
+ | <noinclude>[[Category:Database]]</noinclude> | ||
== Listing The Databases == | == Listing The Databases == | ||
The following script fragment demonstrates how one can list all of the databases currently available on a '''NST''' probe: | The following script fragment demonstrates how one can list all of the databases currently available on a '''NST''' probe: | ||
− | <pre> | + | <pre class="programListing"> |
#!/bin/bash | #!/bin/bash | ||
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mysql_list() { | mysql_list() { | ||
− | # | + | # Try to load MySQL access password from /etc/nst.conf |
− | + | [ -z "${NSTCTMYSQLPASSWD}" ] && [ -f /etc/nst.conf ] && . /etc/nst.conf; | |
− | + | local PASSWD="--password${NSTCTMYSQLPASSWD+=}${NSTCTMYSQLPASSWD}"; | |
− | |||
# Dump all databases | # Dump all databases | ||
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--host="127.0.0.1" \ | --host="127.0.0.1" \ | ||
--user="root" \ | --user="root" \ | ||
− | + | "${PASSWD}" | grep -v '^Database$'; | |
} | } | ||
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</pre> | </pre> | ||
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− | < | + | Assuming one saved the above example script to the file: "'''/root/bin/listdb'''" one should be able to list all of the MySQL databases in the following manner: |
− | [root@taco ~]# | + | |
+ | <div class="screen"> | ||
+ | <div class="screenTitle">''Script:'' "listdb" Usage</div> | ||
+ | <div class="userInput"><span class="prompt">[root@taco ~]# </span>/root/bin/listdb</div> | ||
+ | <pre class="computerOutput"> | ||
fruity | fruity | ||
geoinfo | geoinfo | ||
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snort_archive | snort_archive | ||
test | test | ||
− | [root@taco ~]# | + | </pre><div class="userInput"><span class="prompt">[root@taco ~]# </span></div> |
− | </ | + | </div> |
− | |||
== Backing Up and Restoring A Database == | == Backing Up and Restoring A Database == | ||
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The following script fragment demonstrates how one can backup a single database kept at the server: | The following script fragment demonstrates how one can backup a single database kept at the server: | ||
− | <pre> | + | <pre class="programListing"> |
#!/bin/bash | #!/bin/bash | ||
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local PKGSAVEFILE="${PKGSAVEDIR}/${PKGDB}.sql.gz"; | local PKGSAVEFILE="${PKGSAVEDIR}/${PKGDB}.sql.gz"; | ||
− | # | + | # Try to load MySQL access password from /etc/nst.conf |
− | + | [ -z "${NSTCTMYSQLPASSWD}" ] && [ -f /etc/nst.conf ] && . /etc/nst.conf; | |
− | + | local PASSWD="--password${NSTCTMYSQLPASSWD+=}${NSTCTMYSQLPASSWD}"; | |
− | |||
# Create save directory if it doesn't exist yet | # Create save directory if it doesn't exist yet | ||
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--host="127.0.0.1" \ | --host="127.0.0.1" \ | ||
--user="root" \ | --user="root" \ | ||
− | + | "${PASSWD}" \ | |
--add-drop-database \ | --add-drop-database \ | ||
--add-drop-table \ | --add-drop-table \ | ||
Line 92: | Line 91: | ||
The following script fragment demonstrates how to restore the database (WARNING: THIS REPLACES ANY EXISTING DATABASE HAVING THE SAME NAME): | The following script fragment demonstrates how to restore the database (WARNING: THIS REPLACES ANY EXISTING DATABASE HAVING THE SAME NAME): | ||
− | <pre> | + | <pre class="programListing"> |
#!/bin/bash | #!/bin/bash | ||
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[ -f "${PKGSAVEFILE}" ] || return 1; | [ -f "${PKGSAVEFILE}" ] || return 1; | ||
− | # | + | # Try to load MySQL access password from /etc/nst.conf |
− | + | [ -z "${NSTCTMYSQLPASSWD}" ] && [ -f /etc/nst.conf ] && . /etc/nst.conf; | |
− | + | local PASSWD="--password${NSTCTMYSQLPASSWD+=}${NSTCTMYSQLPASSWD}"; | |
− | |||
# Restore the database | # Restore the database | ||
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--host="127.0.0.1" \ | --host="127.0.0.1" \ | ||
--user="root" \ | --user="root" \ | ||
− | + | "${PASSWD}"; | |
} | } | ||
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Assuming saved the backup script to the file: "'''/root/bin/backupdb'''" and the restore script shown above to the file: "'''/root/bin/restoredb'''", the following command line demonstrates how one could backup and then restore the '''snort''' database. | Assuming saved the backup script to the file: "'''/root/bin/backupdb'''" and the restore script shown above to the file: "'''/root/bin/restoredb'''", the following command line demonstrates how one could backup and then restore the '''snort''' database. | ||
− | < | + | <div class="screen"> |
− | [root@taco ~]# | + | <div class="screenTitle">''Script:'' "backupdb" & "restoredb" Usage</div> |
− | [root@taco ~]# | + | <div class="userInput"><span class="prompt">[root@taco ~]# </span>/root/bin/backupdb snort</div> |
+ | <div class="userInput"><span class="prompt">[root@taco ~]# </span></div> | ||
+ | <div class="userInput"><span class="prompt">[root@taco ~]# </span>ls -l /var/nst/backup/db</div> | ||
+ | <pre class="computerOutput"> | ||
total 8 | total 8 | ||
-rw-r--r-- 1 root root 5407 Feb 28 07:23 snort.sql.gz | -rw-r--r-- 1 root root 5407 Feb 28 07:23 snort.sql.gz | ||
− | |||
− | |||
</pre> | </pre> | ||
+ | <div class="userInput"><span class="prompt">[root@taco ~]# </span>ls -l /var/nst/backup/db</div> | ||
+ | <div class="userInput"><span class="prompt">[root@taco ~]# </span></div> | ||
+ | </div> |
Latest revision as of 07:17, 4 March 2007
This page contains some notes on using the MySQL database server on a NST probe.
Listing The Databases
The following script fragment demonstrates how one can list all of the databases currently available on a NST probe:
#!/bin/bash # mysql_list # # Lists all of the MySQL databases which currently exist. mysql_list() { # Try to load MySQL access password from /etc/nst.conf [ -z "${NSTCTMYSQLPASSWD}" ] && [ -f /etc/nst.conf ] && . /etc/nst.conf; local PASSWD="--password${NSTCTMYSQLPASSWD+=}${NSTCTMYSQLPASSWD}"; # Dump all databases echo "show databases;" | mysql \ --host="127.0.0.1" \ --user="root" \ "${PASSWD}" | grep -v '^Database$'; } # Dump all databases mysql_list;
Assuming one saved the above example script to the file: "/root/bin/listdb" one should be able to list all of the MySQL databases in the following manner:
fruity geoinfo inprotect mysql snort snort_archive test
Backing Up and Restoring A Database
NOTE: The following code fragments need to be run from the root user account so that the MySQL password can be read from the file: "/etc/nst.conf".
The following script fragment demonstrates how one can backup a single database kept at the server:
#!/bin/bash # mysql_backup DBNAME BACKUPDIR # # Function to backup MySQL database to specified backup directory. mysql_backup() { # Name of database and directory to save backup under. local PKGDB="${1}"; local PKGSAVEDIR="${2}"; local PKGSAVEFILE="${PKGSAVEDIR}/${PKGDB}.sql.gz"; # Try to load MySQL access password from /etc/nst.conf [ -z "${NSTCTMYSQLPASSWD}" ] && [ -f /etc/nst.conf ] && . /etc/nst.conf; local PASSWD="--password${NSTCTMYSQLPASSWD+=}${NSTCTMYSQLPASSWD}"; # Create save directory if it doesn't exist yet [ -d "${PKGSAVEDIR}" ] || mkdir -p "${PKGSAVEDIR}" || return 1; # Dump the database mysqldump \ --host="127.0.0.1" \ --user="root" \ "${PASSWD}" \ --add-drop-database \ --add-drop-table \ --databases "${PKGDB}" \ | gzip -c >| "${PKGSAVEFILE}"; } # Backup database named "fruity" unless user specified different name on command line mysql_backup "${1:-fruity}" "/var/nst/backup/db";
The following script fragment demonstrates how to restore the database (WARNING: THIS REPLACES ANY EXISTING DATABASE HAVING THE SAME NAME):
#!/bin/bash # mysql_restore DBNAME BACKUPDIR # # Restores a MySQL database that was previously saved using the "mysql_backup" function. mysql_restore() { # Name of database and directory where backup was saved local PKGDB="${1}"; local PKGSAVEDIR="${2}"; local PKGSAVEFILE="${PKGSAVEDIR}/${PKGDB}.sql.gz"; # Verify backup exists [ -f "${PKGSAVEFILE}" ] || return 1; # Try to load MySQL access password from /etc/nst.conf [ -z "${NSTCTMYSQLPASSWD}" ] && [ -f /etc/nst.conf ] && . /etc/nst.conf; local PASSWD="--password${NSTCTMYSQLPASSWD+=}${NSTCTMYSQLPASSWD}"; # Restore the database gzip -dc < "${PKGSAVEFILE}" | \ mysql \ --host="127.0.0.1" \ --user="root" \ "${PASSWD}"; } # Restore database named "fruity" unless user specified different name on command line mysql_restore "${1:-fruity}" "/var/nst/backup/db";
Assuming saved the backup script to the file: "/root/bin/backupdb" and the restore script shown above to the file: "/root/bin/restoredb", the following command line demonstrates how one could backup and then restore the snort database.
total 8 -rw-r--r-- 1 root root 5407 Feb 28 07:23 snort.sql.gz