mirror of
https://github.com/MariaDB/server.git
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0f3493a490
Added some code to try to find the mysql command line in the most common places and stop if it's not there.
362 lines
7.8 KiB
Bash
362 lines
7.8 KiB
Bash
#!/bin/sh
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# Copyright (C) 2002 MySQL AB and Jeremy Cole
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; version 2 of the License.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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config=".my.cnf.$$"
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command=".mysql.$$"
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mysql_client=""
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trap "interrupt" 2
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rootpass=""
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echo_n=
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echo_c=
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set_echo_compat() {
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case `echo "testing\c"`,`echo -n testing` in
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*c*,-n*) echo_n= echo_c= ;;
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*c*,*) echo_n=-n echo_c= ;;
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*) echo_n= echo_c='\c' ;;
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esac
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}
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prepare() {
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touch $config $command
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chmod 600 $config $command
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}
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find_mysql_client()
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{
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for n in ./bin/mysql mysql
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do
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$n --no-defaults --help > /dev/null 2>&1
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status=$?
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if test $status -eq 0
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then
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mysql_client=$n
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return
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fi
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done
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echo "Can't find a 'mysql' client in PATH or ./bin"
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exit 1
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}
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do_query() {
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echo "$1" >$command
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#sed 's,^,> ,' < $command # Debugging
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$mysql_client --defaults-file=$config <$command
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return $?
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}
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# Simple escape mechanism (\-escape any ' and \), suitable for two contexts:
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# - single-quoted SQL strings
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# - single-quoted option values on the right hand side of = in my.cnf
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#
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# These two contexts don't handle escapes identically. SQL strings allow
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# quoting any character (\C => C, for any C), but my.cnf parsing allows
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# quoting only \, ' or ". For example, password='a\b' quotes a 3-character
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# string in my.cnf, but a 2-character string in SQL.
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#
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# This simple escape works correctly in both places.
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basic_single_escape () {
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# The quoting on this sed command is a bit complex. Single-quoted strings
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# don't allow *any* escape mechanism, so they cannot contain a single
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# quote. The string sed gets (as argv[1]) is: s/\(['\]\)/\\\1/g
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#
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# Inside a character class, \ and ' are not special, so the ['\] character
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# class is balanced and contains two characters.
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echo "$1" | sed 's/\(['"'"'\]\)/\\\1/g'
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}
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make_config() {
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echo "# mysql_secure_installation config file" >$config
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echo "[mysql]" >>$config
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echo "user=root" >>$config
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esc_pass=`basic_single_escape "$rootpass"`
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echo "password='$esc_pass'" >>$config
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#sed 's,^,> ,' < $config # Debugging
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}
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get_root_password() {
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status=1
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while [ $status -eq 1 ]; do
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stty -echo
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echo $echo_n "Enter current password for root (enter for none): $echo_c"
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read password
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echo
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stty echo
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if [ "x$password" = "x" ]; then
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hadpass=0
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else
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hadpass=1
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fi
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rootpass=$password
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make_config
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do_query ""
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status=$?
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done
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echo "OK, successfully used password, moving on..."
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echo
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}
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set_root_password() {
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stty -echo
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echo $echo_n "New password: $echo_c"
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read password1
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echo
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echo $echo_n "Re-enter new password: $echo_c"
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read password2
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echo
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stty echo
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if [ "$password1" != "$password2" ]; then
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echo "Sorry, passwords do not match."
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echo
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return 1
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fi
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if [ "$password1" = "" ]; then
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echo "Sorry, you can't use an empty password here."
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echo
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return 1
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fi
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esc_pass=`basic_single_escape "$password1"`
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do_query "UPDATE mysql.user SET Password=PASSWORD('$esc_pass') WHERE User='root';"
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if [ $? -eq 0 ]; then
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echo "Password updated successfully!"
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echo "Reloading privilege tables.."
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reload_privilege_tables || exit 1
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echo
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rootpass=$password1
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make_config
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else
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echo "Password update failed!"
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exit 1
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fi
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return 0
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}
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remove_anonymous_users() {
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do_query "DELETE FROM mysql.user WHERE User='';"
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if [ $? -eq 0 ]; then
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echo " ... Success!"
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else
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echo " ... Failed!"
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exit 1
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fi
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return 0
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}
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remove_remote_root() {
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do_query "DELETE FROM mysql.user WHERE User='root' AND Host!='localhost';"
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if [ $? -eq 0 ]; then
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echo " ... Success!"
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else
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echo " ... Failed!"
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fi
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}
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remove_test_database() {
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echo " - Dropping test database..."
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do_query "DROP DATABASE test;"
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if [ $? -eq 0 ]; then
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echo " ... Success!"
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else
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echo " ... Failed! Not critical, keep moving..."
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fi
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echo " - Removing privileges on test database..."
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do_query "DELETE FROM mysql.db WHERE Db='test' OR Db='test\\_%'"
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if [ $? -eq 0 ]; then
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echo " ... Success!"
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else
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echo " ... Failed! Not critical, keep moving..."
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fi
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return 0
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}
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reload_privilege_tables() {
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do_query "FLUSH PRIVILEGES;"
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if [ $? -eq 0 ]; then
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echo " ... Success!"
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return 0
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else
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echo " ... Failed!"
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return 1
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fi
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}
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interrupt() {
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echo
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echo "Aborting!"
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echo
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cleanup
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stty echo
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exit 1
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}
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cleanup() {
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echo "Cleaning up..."
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rm -f $config $command
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}
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# The actual script starts here
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prepare
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find_mysql_client
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set_echo_compat
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echo
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echo
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echo
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echo
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echo "NOTE: RUNNING ALL PARTS OF THIS SCRIPT IS RECOMMENDED FOR ALL MySQL"
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echo " SERVERS IN PRODUCTION USE! PLEASE READ EACH STEP CAREFULLY!"
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echo
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echo
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echo "In order to log into MySQL to secure it, we'll need the current"
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echo "password for the root user. If you've just installed MySQL, and"
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echo "you haven't set the root password yet, the password will be blank,"
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echo "so you should just press enter here."
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echo
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get_root_password
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#
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# Set the root password
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#
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echo "Setting the root password ensures that nobody can log into the MySQL"
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echo "root user without the proper authorisation."
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echo
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if [ $hadpass -eq 0 ]; then
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echo $echo_n "Set root password? [Y/n] $echo_c"
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else
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echo "You already have a root password set, so you can safely answer 'n'."
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echo
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echo $echo_n "Change the root password? [Y/n] $echo_c"
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fi
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read reply
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if [ "$reply" = "n" ]; then
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echo " ... skipping."
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else
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status=1
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while [ $status -eq 1 ]; do
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set_root_password
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status=$?
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done
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fi
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echo
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#
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# Remove anonymous users
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#
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echo "By default, a MySQL installation has an anonymous user, allowing anyone"
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echo "to log into MySQL without having to have a user account created for"
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echo "them. This is intended only for testing, and to make the installation"
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echo "go a bit smoother. You should remove them before moving into a"
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echo "production environment."
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echo
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echo $echo_n "Remove anonymous users? [Y/n] $echo_c"
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read reply
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if [ "$reply" = "n" ]; then
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echo " ... skipping."
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else
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remove_anonymous_users
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fi
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echo
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#
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# Disallow remote root login
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#
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echo "Normally, root should only be allowed to connect from 'localhost'. This"
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echo "ensures that someone cannot guess at the root password from the network."
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echo
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echo $echo_n "Disallow root login remotely? [Y/n] $echo_c"
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read reply
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if [ "$reply" = "n" ]; then
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echo " ... skipping."
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else
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remove_remote_root
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fi
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echo
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#
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# Remove test database
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#
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echo "By default, MySQL comes with a database named 'test' that anyone can"
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echo "access. This is also intended only for testing, and should be removed"
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echo "before moving into a production environment."
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echo
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echo $echo_n "Remove test database and access to it? [Y/n] $echo_c"
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read reply
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if [ "$reply" = "n" ]; then
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echo " ... skipping."
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else
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remove_test_database
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fi
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echo
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#
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# Reload privilege tables
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#
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echo "Reloading the privilege tables will ensure that all changes made so far"
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echo "will take effect immediately."
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echo
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echo $echo_n "Reload privilege tables now? [Y/n] $echo_c"
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read reply
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if [ "$reply" = "n" ]; then
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echo " ... skipping."
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else
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reload_privilege_tables
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fi
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echo
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cleanup
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echo
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echo
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echo
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echo "All done! If you've completed all of the above steps, your MySQL"
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echo "installation should now be secure."
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echo
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echo "Thanks for using MySQL!"
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echo
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echo
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