File: mysql_secure_installation.pl

package info (click to toggle)
mysql-5.1 5.1.73-1%2Bdeb6u1
  • links: PTS, VCS
  • area: main
  • in suites: squeeze-lts
  • size: 197,132 kB
  • ctags: 93,377
  • sloc: cpp: 579,952; ansic: 429,462; perl: 49,053; sh: 21,692; pascal: 21,272; yacc: 12,801; makefile: 4,545; xml: 4,114; sql: 3,297; lex: 1,265; asm: 1,023
file content (218 lines) | stat: -rw-r--r-- 7,630 bytes parent folder | download | duplicates (2)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
#-----------------------------------------------------------------------------
# Copyright (c) 2002, 2003 MySQL AB
# 
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; version 2 of the License.
# 
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
# 
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
#-----------------------------------------------------------------------------

#-----------------------------------------------------------------------------
# This notice applies to changes, created by or for Novell, Inc., 
# to preexisting works for which notices appear elsewhere in this file. 
 
# Copyright (c) 2003 Novell, Inc. All Rights Reserved. 

# This program is free software; you can redistribute it and/or modify 
# it under the terms of the GNU General Public License as published by 
# the Free Software Foundation; either version 2 of the License, or 
# (at your option) any later version. 

# This program is distributed in the hope that it will be useful, 
# but WITHOUT ANY WARRANTY; without even the implied warranty of 
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 
# GNU General Public License for more details. 

# You should have received a copy of the GNU General Public License 
# along with this program; if not, write to the Free Software 
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
#-----------------------------------------------------------------------------

use strict;
use Mysql;

print "MySQL Secure Installation Script\n\n";

print "NOTE: RUNNING ALL PARTS OF THIS SCRIPT IS RECOMMENDED FOR ALL MySQL\n";
print "      SERVERS IN PRODUCTION USE!  PLEASE READ EACH STEP CAREFULLY!\n\n";

#-----------------------------------------------------------------------------
# get the current root password
#-----------------------------------------------------------------------------

print "In order to log into MySQL to secure it, we'll need the current\n";
print "password for the root user.  If you've just installed MySQL, and\n";
print "you haven't set the root password yet, the password will be blank,\n";
print "so you should just press enter here.\n\n";

print "Enter the current password for root: ";
my $password = <STDIN>;
chomp $password;
print "\n";

my $conn = Mysql->connect("localhost", "mysql", "root", $password)
  || die "Unable to connect to MySQL.";

print "OK, successfully used the password, moving on...\n\n";
 
#-----------------------------------------------------------------------------
# set the root password
#-----------------------------------------------------------------------------

unless ($password)
{
  print "Setting the root password ensures that no one can log into MySQL\n";
  print "using the root user without the proper authorization.\n\n";
    
  print "Set root password (Y/N)? ";
  my $reply = <STDIN>;
  chomp $reply;
  print "\n";
  
  if ($reply =~ /Y/i) 
  {
    print "New password for root: ";
    my $pass1 = <STDIN>;
    chomp $pass1;
    print "\n";
      
    print "Re-enter new password for root: ";
    my $pass2 = <STDIN>;
    chomp $pass2;
    print "\n";
      
    unless ($pass1 eq $pass2) { die "Sorry, the passwords do not match."; }
    
    unless ($pass1) { die "Sorry, you can't use an empty password here."; }
    
    $conn->query("SET PASSWORD FOR root\@localhost=PASSWORD('$pass1')")
      || die "Unable to set password.";
  
    print "OK, successfully set the password, moving on...\n\n";
  }
  else
  {
    print "WARNING, the password is not set, moving on...\n\n";
  }
}

#-----------------------------------------------------------------------------
# remove anonymous users
#-----------------------------------------------------------------------------

print "By default, a MySQL installation has anonymous users, allowing anyone\n";
print "to log into MySQL without having to have a user account created for\n";
print "them.  This is intended only for testing, and to make the installation\n";
print "go a bit smoother.  You should remove them before moving into a\n";
print "production environment.\n\n";

print "Remove anonymous users (Y/N)? ";
my $reply = <STDIN>;
chomp $reply;
print "\n";

if ($reply =~ /Y/i) 
{
  $conn->query("DELETE FROM mysql.user WHERE user=''")
    || die "Unable to remove anonymous users.";
  
  print "OK, successfully removed anonymous users, moving on...\n\n";
}
else
{
  print "WARNING, the anonymous users have not been removed, moving on...\n\n";
}

#-----------------------------------------------------------------------------
# disallow remote root login
#-----------------------------------------------------------------------------

print "Normally, root should only be allowed to connect from 'localhost'.  This\n";
print "ensures that someone cannot guess at the root password from the network.\n\n";

print "Disallow remote root login (Y/N)? ";
my $reply = <STDIN>;
chomp $reply;
print "\n";

if ($reply =~ /Y/i) 
{
  $conn->query("DELETE FROM mysql.user WHERE user='root' AND host!='localhost'")
    || die "Unable to disallow remote root login.";
  
  print "OK, successfully disallowed remote root login, moving on...\n\n";
}
else
{
  print "WARNING, remote root login has not been disallowed, moving on...\n\n";
}

#-----------------------------------------------------------------------------
# remove test database
#-----------------------------------------------------------------------------

print "By default, MySQL comes with a database named 'test' that anyone can\n";
print "access.  This is intended only for testing, and should be removed\n";
print "before moving into a production environment.\n\n";

print "Remove the test database (Y/N)? ";
my $reply = <STDIN>;
chomp $reply;
print "\n";

if ($reply =~ /Y/i) 
{
  $conn->query("DROP DATABASE IF EXISTS test")
    || die "Unable to remove test database.";
  
  $conn->query("DELETE FROM mysql.db WHERE db='test' OR db='test\\_%'")
    || die "Unable to remove access to the test database.";
  
  print "OK, successfully removed the test database, moving on...\n\n";
}
else
{
  print "WARNING, the test database has not been removed, moving on...\n\n";
}

#-----------------------------------------------------------------------------
# reload privilege tables
#-----------------------------------------------------------------------------

print "Reloading the privilege tables will ensure that all changes made so far\n";
print "will take effect immediately.\n\n";

print "Reload privilege tables (Y/N)? ";
my $reply = <STDIN>;
chomp $reply;
print "\n";

if ($reply =~ /Y/i) 
{
  $conn->query("FLUSH PRIVILEGES")
    || die "Unable to reload privilege tables.";
  
  print "OK, successfully reloaded privilege tables, moving on...\n\n";
}
else
{
  print "WARNING, the privilege tables have not been reloaded, moving on...\n\n";
}

#-----------------------------------------------------------------------------
# done
#-----------------------------------------------------------------------------

print "\n\nAll done!  If you've completed all of the above steps, your MySQL\n";
print "installation should now be secure.\n\n";

print "Thanks for using MySQL!\n\n";