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| <div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Chapter 4. MySQL authentication</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="configuring-guacamole.html">Prev</a> </td><th width="60%" align="center">Part I. User's Guide</th><td width="20%" align="right"> <a accesskey="n" href="ldap-auth.html">Next</a></td></tr></table><hr /></div><div xml:lang="en" class="chapter" title="Chapter 4. MySQL authentication" lang="en"><div class="titlepage"><div><div><h2 class="title"><a id="mysql-auth"></a>Chapter 4. MySQL authentication</h2></div></div></div><div class="toc"><p><strong>Table of Contents</strong></p><dl><dt><span class="section"><a href="mysql-auth.html#installing-mysql-auth">Installing MySQL authentication</a></span></dt><dd><dl><dt><span class="section"><a href="mysql-auth.html#idp740928">Creating a database and user</a></span></dt><dt><span class="section"><a href="mysql-auth.html#idp757744">Running the SQL scripts</a></span></dt><dt><span class="section"><a href="mysql-auth.html#idp772704">Configuring Guacamole</a></span></dt><dt><span class="section"><a href="mysql-auth.html#idp773024">Logging in</a></span></dt></dl></dd><dt><span class="section"><a href="mysql-auth.html#mysql-auth-schema">Modifying data manually</a></span></dt><dd><dl><dt><span class="section"><a href="mysql-auth.html#idp793152">Users</a></span></dt><dt><span class="section"><a href="mysql-auth.html#idp812144">Connections and parameters</a></span></dt><dt><span class="section"><a href="mysql-auth.html#idp858096">Connections groups</a></span></dt><dt><span class="section"><a href="mysql-auth.html#idp878096">Permissions</a></span></dt></dl></dd></dl></div> |
| |
| <a id="idp715184" class="indexterm"></a> |
| <a id="idp716128" class="indexterm"></a> |
| <p>Guacamole supports MySQL authentication through an extension available from the project |
| website. This extension allows users and connections to be managed from within the web |
| application. Unlike the default, XML-driven authentication module, all changes to users and |
| connections take effect immediately; users need not logout and back in in order to see new |
| connections.</p> |
| <p>The official MySQL authentication also supports load balancing through the use of |
| "balancing groups". When a balancing group is created, it can be used like any other |
| connection, but will use the least used of its underlying connections, spreading load evenly |
| across any connections contained within.</p> |
| <div class="section" title="Installing MySQL authentication"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="installing-mysql-auth"></a>Installing MySQL authentication</h2></div></div></div> |
| |
| <p>The MySQL authentication module is not included in the main Guacamole bundle nor is it |
| enabled by default. You must use the download link provided in the downloads section of |
| the main Guacamole site.</p> |
| <p>The downloaded <code class="filename">.tar.gz</code> file will contain several |
| directories:</p> |
| <div class="variablelist"><dl><dt><span class="term"><code class="filename">lib/</code></span></dt><dd> |
| <p>Contains all <code class="filename">.jar</code> files required for the MySQL |
| authentication module to work, including the module itself. <span class="emphasis"><em>The |
| MySQL JDBC connector is not included.</em></span></p> |
| </dd><dt><span class="term"><code class="filename">schema/</code></span></dt><dd> |
| <p>Contains all SQL scripts required to set up the MySQL database.</p> |
| </dd></dl></div> |
| <p>The contents of <code class="filename">lib/</code> must be copied into the classpath of |
| Guacamole, which is the directory specified by the <span class="property">lib-directory</span> |
| property in <code class="filename">guacamole.properties</code>. If this property is not |
| specified, simply add it. On Linux servers, |
| <code class="filename">/var/lib/guacamole/classpath</code> is a good choice, but it can be |
| whatever you like.</p> |
| <p>In addition to the files from <code class="filename">lib/</code>, you must also copy |
| <code class="filename">.jar</code> file from the MySQL "Connector-J" JDBC archive. The |
| archive containing this <code class="filename">.jar</code> can be downloaded from <a class="ulink" href="http://dev.mysql.com/downloads/connector/j/" target="_top">MySQL's |
| website</a>.</p> |
| <p>After copying the files in place, check to make sure everything looks sane. The |
| contents should match at least the files shown here:</p> |
| <div class="informalexample"> |
| <pre class="screen"><code class="prompt">$</code> ls <em class="replaceable"><code>/var/lib/guacamole/classpath</code></em> |
| <code class="computeroutput">aopalliance-1.0.jar javax.inject-1.jar |
| commons-logging-1.1.1.jar mybatis-3.1.1.jar |
| google-collections-1.0.jar mybatis-guice-3.2.jar |
| guacamole-auth-mysql-0.8.0.jar mysql-connector-java-5.1.23-bin.jar |
| guice-3.0.jar slf4j-api-1.6.1.jar |
| guice-multibindings-3.0.jar slf4j-jcl-1.6.1.jar</code> |
| <code class="prompt">$</code></pre> |
| </div> |
| <p>Each of the <code class="filename">.jar</code> files above is either the MySQL authentication |
| module itself (<code class="filename">guacamole-auth-mysql-0.8.0.jar</code>) or a dependency. |
| They must all be placed in Guacamole's lib-directory for the MySQL authentication to |
| work.</p> |
| <div class="important" title="Important" style="margin-left: 0.5in; margin-right: 0.5in;"><h3 class="title">Important</h3> |
| <p>If you do not see <code class="filename">mysql-connector-java-5.1.23-bin.jar</code> (or a |
| similar file with a different version) present in the same directory as the other |
| <code class="filename">.jar</code> files, then you have not copied MySQL Connector-J |
| properly.</p> |
| <p>Be sure to download MySQL Connector-J from the <a class="ulink" href="http://dev.mysql.com/downloads/connector/j/" target="_top">MySQL website</a>. |
| Extract the downloaded archive, and copy the <code class="filename">.jar</code> file into the |
| same directory as shown above. <span class="emphasis"><em>If this is not done, MySQL authentication |
| will not work.</em></span> Guacamole will be unable to connect to your MySQL |
| database.</p> |
| </div> |
| <div class="section" title="Creating a database and user"><div class="titlepage"><div><div><h3 class="title"><a id="idp740928"></a>Creating a database and user</h3></div></div></div> |
| |
| <a id="idp741776" class="indexterm"></a> |
| <p>The MySQL authentication module will need a database to store all authentication |
| data and a user to use only for data access and manipulation. You could use an |
| existing database and existing user, but for the sake of simplicity and security, |
| these instructions assume you will be creating a new database and new user that will |
| be used only by Guacamole and only for this authentication module.</p> |
| <p>At this point, you need MySQL installed and the root MySQL user configured. If |
| this is not the case, install MySQL now. Most distributions will provide a |
| convenient MySQL package which will set up everything for you, including the root |
| user. After MySQL is installed, create the new database and user:</p> |
| <div class="informalexample"> |
| <pre class="screen"><code class="prompt">$</code> mysql -u root -p |
| <code class="prompt">Enter password:</code> <strong class="userinput"><code><em class="replaceable"><code>password</code></em></code></strong> |
| <code class="computeroutput">Welcome to the MySQL monitor. Commands end with ; or \g. |
| Your MySQL connection id is 233 |
| Server version: 5.5.29-0ubuntu0.12.10.1 (Ubuntu) |
| |
| Copyright (c) 2000, 2012, Oracle and/or its affiliates. All rights reserved. |
| |
| Oracle is a registered trademark of Oracle Corporation and/or its |
| affiliates. Other names may be trademarks of their respective |
| owners. |
| |
| Type 'help;' or '\h' for help. Type '\c' to clear the current input statement. |
| </code> |
| <code class="prompt">mysql></code> <strong class="userinput"><code>CREATE DATABASE <em class="replaceable"><code>guacamole</code></em>;</code></strong> |
| <code class="computeroutput">Query OK, 1 row affected (0.00 sec)</code> |
| |
| <code class="prompt">mysql></code> <strong class="userinput"><code>CREATE USER '<em class="replaceable"><code>guacamole'</code></em>@'localhost' IDENTIFIED BY '<em class="replaceable"><code>some_password</code></em>';</code></strong> |
| <code class="computeroutput">Query OK, 0 rows affected (0.00 sec)</code> |
| |
| <code class="prompt">mysql></code> <strong class="userinput"><code>GRANT SELECT,INSERT,UPDATE,DELETE ON <em class="replaceable"><code>guacamole</code></em>.* TO '<em class="replaceable"><code>guacamole'</code></em>@'localhost';</code></strong> |
| <code class="computeroutput">Query OK, 0 rows affected (0.00 sec)</code> |
| |
| <code class="prompt">mysql></code> <strong class="userinput"><code>FLUSH PRIVILEGES;</code></strong> |
| <code class="computeroutput">Query OK, 0 rows affected (0.02 sec)</code> |
| |
| <code class="prompt">mysql></code> <strong class="userinput"><code>quit</code></strong> |
| <code class="computeroutput">Bye</code> |
| <code class="prompt">$</code></pre> |
| </div> |
| <p>The database and user can be named whatever you like, but these instructions will |
| refer to both as "guacamole". Naturally, you should choose a real password for your |
| user rather than the string "some_password" shown above.</p> |
| </div> |
| <div class="section" title="Running the SQL scripts"><div class="titlepage"><div><div><h3 class="title"><a id="idp757744"></a>Running the SQL scripts</h3></div></div></div> |
| |
| <a id="idp758560" class="indexterm"></a> |
| <p>The SQL scripts that create the database schema and default administrator user are |
| included in the archive you downloaded within the <code class="filename">schema/</code> |
| directory. They are named such that they can be run in order with one |
| command:</p> |
| <div class="informalexample"> |
| <pre class="screen"><code class="prompt">$</code> <strong class="userinput"><code>ls schema/</code></strong> |
| <code class="computeroutput">001-create-schema.sql 002-create-admin-user.sql upgrade</code> |
| <code class="prompt">$</code> <strong class="userinput"><code>cat schema/*.sql | mysql -u root -p <em class="replaceable"><code>guacamole</code></em></code></strong> |
| <code class="computeroutput"><code class="prompt">Enter password:</code></code> <strong class="userinput"><code><em class="replaceable"><code>password</code></em></code></strong> |
| <code class="prompt">$</code></pre> |
| </div> |
| <p>If the operation is successful, all tables have been created successfully, and the |
| database is now ready for use. All that is left now is to configure Guacamole to use |
| the database we've created.</p> |
| <div class="important" title="Important" style="margin-left: 0.5in; margin-right: 0.5in;"><h3 class="title">Important</h3> |
| <p>If you are upgrading from an older version that lacked support for connection |
| groups, you should instead run the upgrade script located within the |
| <code class="filename">upgrade/</code> directory:</p> |
| <div class="informalexample"> |
| <pre class="screen"><code class="prompt">$</code> <strong class="userinput"><code>ls schema/upgrade/</code></strong> |
| <code class="computeroutput">upgrade-pre-0.8.2.sql</code> |
| <code class="prompt">$</code> <strong class="userinput"><code>mysql -u root -p <em class="replaceable"><code>guacamole</code></em> < schema/upgrade/upgrade-pre-0.8.2.sql</code></strong> |
| <code class="computeroutput"><code class="prompt">Enter password:</code></code> <strong class="userinput"><code><em class="replaceable"><code>password</code></em></code></strong> |
| <code class="prompt">$</code></pre> |
| </div> |
| </div> |
| </div> |
| <div class="section" title="Configuring Guacamole"><div class="titlepage"><div><div><h3 class="title"><a id="idp772704"></a>Configuring Guacamole</h3></div></div></div> |
| |
| <a id="idp773680" class="indexterm"></a> |
| <p>Now that the database and user is created, and the SQL scripts have been run, we |
| need to add a few properties to <code class="filename">guacamole.properties</code> such that |
| Guacamole can connect to MySQL when authenticating users:</p> |
| <div class="informalexample"> |
| <pre class="programlisting"># Auth provider class |
| auth-provider: net.sourceforge.guacamole.net.auth.mysql.MySQLAuthenticationProvider |
| |
| # MySQL properties |
| mysql-hostname: localhost |
| mysql-port: 3306 |
| mysql-database: <em class="replaceable"><code>guacamole</code></em> |
| mysql-username: <em class="replaceable"><code>guacamole</code></em> |
| mysql-password: <em class="replaceable"><code>some_password</code></em></pre> |
| </div> |
| <a id="idp778064" class="indexterm"></a> |
| <p>Be sure to specify the correct password for the MySQL user you created, and |
| specify the correct database and username if you didn't use "guacamole". If you wish |
| to only allow one user at a time to access any single connection, you can also limit |
| concurrent access to connections:</p> |
| <div class="informalexample"> |
| <pre class="programlisting">mysql-disallow-simultaneous-connections: true</pre> |
| </div> |
| <p>This is not required, but with the above property in place, users attempting to |
| use a connection that is currently in use by another user will be denied access. By |
| default, concurrent access is allowed.</p> |
| <p>You can also limit whether a single user is allowed to connect to the same |
| connection or group concurrently. By default, this is enabled, as it has security |
| implications when balancing groups are used, but you can explicitly disable this if |
| you want to allow duplicate connections:</p> |
| <div class="informalexample"> |
| <pre class="programlisting">mysql-disallow-duplicate-connections: false</pre> |
| </div> |
| <p>Now just restart Tomcat (or whatever servlet container you are using) and |
| authentication will use MySQL.</p> |
| </div> |
| <div class="section" title="Logging in"><div class="titlepage"><div><div><h3 class="title"><a id="idp773024"></a>Logging in</h3></div></div></div> |
| |
| <a id="idp784336" class="indexterm"></a> |
| <a id="idp785104" class="indexterm"></a> |
| <p>After the MySQL authentication module is installed, you need to log in and change |
| your password, and add whatever connections and additional users you need.</p> |
| <p>The default user is "<span class="token">guacadmin</span>", with the default password of |
| "<span class="token">guacadmin</span>". You can change your password by editing your own |
| user in the administration screen.</p> |
| <p>More detailed instructions for managing users and connections is given in <a class="xref" href="using-guacamole.html" title="Chapter 7. Using Guacamole">Chapter 7, <em>Using Guacamole</em></a> in <a class="xref" href="using-guacamole.html#guacamole-admin-ui" title="Administration">the section called “Administration”</a>.</p> |
| </div> |
| </div> |
| <div class="section" title="Modifying data manually"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a id="mysql-auth-schema"></a>Modifying data manually</h2></div></div></div> |
| |
| <a id="idp790784" class="indexterm"></a> |
| <p>If necessary, it is possible to modify the data backing the MySQL authentication |
| module manually by executing SQL statements against the database. In general use, this |
| will not be common, but if you need to bulk-insert a large number of users or |
| connections, or you wish to translate an existing configuration automatically, you will |
| need to know how everything is laid out at a high level.</p> |
| <p>This section assumes knowledge of SQL and MySQL, and that whatever you need to do can |
| be accomplished if only you had high-level information about Guacamole's SQL |
| schema.</p> |
| <div class="section" title="Users"><div class="titlepage"><div><div><h3 class="title"><a id="idp793152"></a>Users</h3></div></div></div> |
| |
| <a id="idp794000" class="indexterm"></a> |
| <p>Every user has a corresponding entry in the <code class="classname">guacamole_user</code> |
| table. Each user has a corresponding unique username and salted password. The salted |
| password is split into two columns: one containing the salt, and the other |
| containing the password hashed with SHA-256.</p> |
| <p>The <code class="classname">guacamole_user</code> table contains the following |
| columns:</p> |
| <div class="variablelist"><dl><dt><span class="term"><span class="property">user_id</span></span></dt><dd> |
| <p>The unique integer associated with each user. This value is generated |
| automatically when a new entry is inserted into the |
| <code class="classname">guacamole_user</code> table.</p> |
| </dd><dt><span class="term"><span class="property">username</span></span></dt><dd> |
| <p>The unique name associated with each user. This value must be |
| specified manually, and must be different from any existing username in |
| the table. References to users in other tables use the value from |
| <span class="property">user_id</span>, not |
| <span class="property">username</span>.</p> |
| </dd><dt><span class="term"><span class="property">password_hash</span></span></dt><dd> |
| <p>The result of hashing the user's password concatenated with the |
| contents of <span class="property">password_salt</span> using SHA-256. The salt |
| is appended to the password prior to hashing.</p> |
| </dd><dt><span class="term"><span class="property">password_salt</span></span></dt><dd> |
| <p>A 32-byte random value. When a new user is created from the web |
| interface, this value is randomly generated using a |
| cryptographically-secure random number generator.</p> |
| </dd></dl></div> |
| <p>If creating a user manually, the main complication is the salt, which must be |
| determined before the <span class="command"><strong>INSERT</strong></span> statement can be constructed, but |
| this can be dealt with using variables:</p> |
| <div class="informalexample"> |
| <pre class="programlisting">-- Generate salt |
| SET @salt = UNHEX(SHA2(UUID(), 256)); |
| |
| -- Create user and hash password with salt |
| INSERT INTO guacamole_user (username, password_salt, password_hash) |
| VALUES ('myuser', @salt, UNHEX(SHA2(CONCAT('mypassword', HEX(@salt)), 256)));</pre> |
| </div> |
| <p>This sort of statement is useful for both creating new users or for changing |
| passwords, especially if all administrators have forgotten theirs.</p> |
| <p>Note that versions of MySQL earlier than 5.5.5 do not have the |
| <code class="methodname">SHA2</code> function. If you are using one of these versions, |
| you will need to calculate the SHA-256 value manually (by using the |
| <span class="command"><strong>sha256sum</strong></span> command, for example).</p> |
| </div> |
| <div class="section" title="Connections and parameters"><div class="titlepage"><div><div><h3 class="title"><a id="idp812144"></a>Connections and parameters</h3></div></div></div> |
| |
| <a id="idp813312" class="indexterm"></a> |
| <a id="idp813744" class="indexterm"></a> |
| <p>Each connection has an entry in the <code class="classname">guacamole_connection</code> |
| table, with a one-to-many relationship to parameters, stored as name/value pairs in |
| the <code class="classname">guacamole_connection_parameter</code> table.</p> |
| <p>The <code class="classname">guacamole_connection</code> table is simply a pairing of a |
| unique and descriptive name with the protocol to be used for the connection. It |
| contains the following columns:</p> |
| <div class="variablelist"><dl><dt><span class="term"><span class="property">connection_id</span></span></dt><dd> |
| <p>The unique integer associated with each connection. This value is |
| generated automatically when a new entry is inserted into the |
| <code class="classname">guacamole_connection</code> table.</p> |
| </dd><dt><span class="term"><span class="property">connection_name</span></span></dt><dd> |
| <p>The unique name associated with each connection. This value must be |
| specified manually, and must be different from any existing connection |
| name in the same connection group. References to connections in other |
| tables use the value from <span class="property">connection_id</span>, not |
| <span class="property">connection_name</span>.</p> |
| </dd><dt><span class="term"><span class="property">protocol</span></span></dt><dd> |
| <p>The protocol to use with this connection. This is the name of the |
| protocol that should be sent to guacd when connecting, for example "vnc" |
| or "rdp".</p> |
| </dd><dt><span class="term"><span class="property">parent_id</span></span></dt><dd> |
| <p>The unique integer associated with the connection group containing |
| this connection, or <code class="constant">NULL</code> if this connection is |
| within the root group.</p> |
| </dd></dl></div> |
| <p>As there are potentially multiple parameters per connection, where the names of |
| each parameter are completely arbitrary and determined only by the protocol in use, |
| every parameter for a given connection has an entry in table |
| <code class="classname">guacamole_connection_parameter</code> table associated with its |
| corresponding connection. This table contains the following columns:</p> |
| <div class="variablelist"><dl><dt><span class="term"><span class="property">connection_id</span></span></dt><dd> |
| <p>The <span class="property">connection_id</span> value from the connection this |
| parameter is for.</p> |
| </dd><dt><span class="term"><span class="property">parameter_name</span></span></dt><dd> |
| <p>The name of the parameter to set. This is the name listed in the |
| documentation for the protocol specified in the associated |
| connection.</p> |
| </dd><dt><span class="term"><span class="property">parameter_value</span></span></dt><dd> |
| <p>The value to assign to the parameter named. While this value is an |
| arbitrary string, it must conform to the requirements of the protocol as |
| documented for the connection to be successful.</p> |
| </dd></dl></div> |
| <p>Adding a connection and corresponding parameters is relatively easy compared to |
| adding a user as there is no salt to generate nor password to hash:</p> |
| <div class="informalexample"> |
| <pre class="programlisting">-- Create connection |
| INSERT INTO guacamole_connection (connection_name, protocol) VALUES ('<em class="replaceable"><code>test</code></em>', '<em class="replaceable"><code>vnc</code></em>'); |
| SET @id = LAST_INSERT_ID(); |
| |
| -- Add parameters |
| INSERT INTO guacamole_connection_parameter VALUES (@id, 'hostname', '<em class="replaceable"><code>localhost</code></em>'); |
| INSERT INTO guacamole_connection_parameter VALUES (@id, 'port', '<em class="replaceable"><code>5901</code></em>');</pre> |
| </div> |
| <div class="section" title="Usage history"><div class="titlepage"><div><div><h4 class="title"><a id="idp840752"></a>Usage history</h4></div></div></div> |
| |
| <a id="idp841696" class="indexterm"></a> |
| <p>When a connection is initiated or terminated, a corresponding entry in the |
| <code class="classname">guacamole_connection_history</code> table is created or |
| updated respectively. Each entry is associated with the user using the |
| connection, the connection itself, and the time the connection started. If the |
| connection has ended, the end time is also stored.</p> |
| <p>It is very unlikely that a user will need to update this table, but knowing |
| the structure is potentially useful if you wish to generate a report of |
| Guacamole usage. The <code class="classname">guacamole_connection_history</code> table |
| has the following columns:</p> |
| <div class="variablelist"><dl><dt><span class="term"><span class="property">history_id</span></span></dt><dd> |
| <p>The unique integer associated with each history record. This value |
| is generated automatically when a new entry is inserted into the |
| <code class="classname">guacamole_connection_history</code> |
| table.</p> |
| </dd><dt><span class="term"><span class="property">user_id</span></span></dt><dd> |
| <p>The value of the <span class="property">user_id</span> from the entry in |
| <code class="classname">guacamole_user</code> associated with the user |
| using the connection.</p> |
| </dd><dt><span class="term"><span class="property">connection_id</span></span></dt><dd> |
| <p>The value of the <span class="property">connection_id</span> from the entry |
| in <code class="classname">guacamole_connection</code> associated the |
| connection being used.</p> |
| </dd><dt><span class="term"><span class="property">start_date</span></span></dt><dd> |
| <p>The time at which the connection was started by the user |
| specified. Despite its name, this column also stores time |
| information in addition to the date.</p> |
| </dd><dt><span class="term"><span class="property">end_date</span></span></dt><dd> |
| <p>The time at which the connection ended. If the connection is still |
| active, the value in this column will be <code class="constant">NULL</code>. |
| Despite its name, this column also stores time information in |
| addition to the date.</p> |
| </dd></dl></div> |
| </div> |
| </div> |
| <div class="section" title="Connections groups"><div class="titlepage"><div><div><h3 class="title"><a id="idp858096"></a>Connections groups</h3></div></div></div> |
| |
| <a id="idp859904" class="indexterm"></a> |
| <p>Each connection group has an entry in the |
| <code class="classname">guacamole_connection_group</code> table, with a one-to-many |
| relationship to other groups and connections.</p> |
| <p>The <code class="classname">guacamole_connection_group</code> table is simply a pairing of |
| a unique and descriptive name with a group type, which can be either |
| <span class="type">ORGANIZATIONAL</span> or <span class="type">BALANCING</span>. It contains the following |
| columns:</p> |
| <div class="variablelist"><dl><dt><span class="term"><span class="property">connection_group_id</span></span></dt><dd> |
| <p>The unique integer associated with each connection group. This value |
| is generated automatically when a new entry is inserted into the |
| <code class="classname">guacamole_connection_group</code> table.</p> |
| </dd><dt><span class="term"><span class="property">connection_group_name</span></span></dt><dd> |
| <p>The unique name associated with each connection group. This value must |
| be specified manually, and must be different from any existing |
| connection group name in the same connection group. References to |
| connections in other tables use the value from |
| <span class="property">connection_group_id</span>, not |
| <span class="property">connection_group_name</span>.</p> |
| </dd><dt><span class="term"><span class="property">type</span></span></dt><dd> |
| <p>The type of this connection group. This can be either |
| <span class="type">ORGANIZATIONAL</span> or <span class="type">BALANCING</span>.</p> |
| </dd><dt><span class="term"><span class="property">parent_id</span></span></dt><dd> |
| <p>The unique integer associated with the connection group containing |
| this connection group, or <code class="constant">NULL</code> if this connection |
| group is within the root group.</p> |
| </dd></dl></div> |
| <p>Adding a connection group is even simpler than adding a new connection as there |
| are no associated parameters stored in a separate table:</p> |
| <div class="informalexample"> |
| <pre class="programlisting">-- Create connection group |
| INSERT INTO guacamole_connection_group (connection_group_name, type) VALUES ('<em class="replaceable"><code>test</code></em>', '<em class="replaceable"><code>ORGANIZATIONAL</code></em>');</pre> |
| </div> |
| </div> |
| <div class="section" title="Permissions"><div class="titlepage"><div><div><h3 class="title"><a id="idp878096"></a>Permissions</h3></div></div></div> |
| |
| <p>There are three permissions tables in the schema which correspond to the three |
| types of permissions in Guacamole's authentication model: system permissions, which |
| control operations that affect the system as a whole, and user and connection |
| permissions, which control operations that affect specific, existing users or |
| connections respectively.</p> |
| <div class="section" title="System permissions"><div class="titlepage"><div><div><h4 class="title"><a id="idp879856"></a>System permissions</h4></div></div></div> |
| |
| <a id="idp880672" class="indexterm"></a> |
| <p>System permissions are defined by entries in the |
| <code class="classname">guacamole_system_permission</code> table. Each entry grants |
| permission for a specific user to perform a specific system operation.</p> |
| <p>The <code class="classname">guacamole_system_permission</code> table contains the |
| following columns:</p> |
| <div class="variablelist"><dl><dt><span class="term"><span class="property">user_id</span></span></dt><dd> |
| <p>The value of the <span class="property">user_id</span> column of the entry |
| associated with the user owning this permission.</p> |
| </dd><dt><span class="term"><span class="property">permission</span></span></dt><dd> |
| <p>The permission being granted. This column can have one of three |
| possible values: <code class="constant">ADMINISTER</code>, which grants the |
| ability to administer the entire system (essentially a wildcard |
| permission), <code class="constant">CREATE_CONNECTION</code>, which grants |
| the ability to create connections, |
| <code class="constant">CREATE_CONNECTION_GROUP</code>, which grants the |
| ability to create connections groups, or |
| <code class="constant">CREATE_USER</code>, which grants the ability to |
| create users.</p> |
| </dd></dl></div> |
| </div> |
| <div class="section" title="User permissions"><div class="titlepage"><div><div><h4 class="title"><a id="idp891296"></a>User permissions</h4></div></div></div> |
| |
| <a id="idp892112" class="indexterm"></a> |
| <p>User permissions are defined by entries in the |
| <code class="classname">guacamole_user_permission</code> table. Each entry grants |
| permission for a specific user to perform a specific operation on another |
| existing user.</p> |
| <p>The <code class="classname">guacamole_user_permission</code> table contains the |
| following columns:</p> |
| <div class="variablelist"><dl><dt><span class="term"><span class="property">user_id</span></span></dt><dd> |
| <p>The value of the <span class="property">user_id</span> column of the entry |
| associated with the user owning this permission.</p> |
| </dd><dt><span class="term"><span class="property">affected_user_id</span></span></dt><dd> |
| <p>The value of the <span class="property">user_id</span> column of the entry |
| associated with the user <span class="emphasis"><em>affected</em></span> by this |
| permission. This is the user that would be the object of the |
| operation represented by this permission.</p> |
| </dd><dt><span class="term"><span class="property">permission</span></span></dt><dd> |
| <p>The permission being granted. This column can have one of four |
| possible values: <code class="constant">ADMINISTER</code>, which grants the |
| ability to add or remove permissions which affect the user, |
| <code class="constant">READ</code>, which grants the ability to read data |
| associated with the user, <code class="constant">UPDATE</code>, which grants |
| the ability to update data associated with the user, or |
| <code class="constant">DELETE</code>, which grants the ability to delete |
| the user.</p> |
| </dd></dl></div> |
| </div> |
| <div class="section" title="Connection permissions"><div class="titlepage"><div><div><h4 class="title"><a id="idp905760"></a>Connection permissions</h4></div></div></div> |
| |
| <a id="idp906576" class="indexterm"></a> |
| <p>Connection permissions are defined by entries in the |
| <code class="classname">guacamole_connection_permission</code> table. Each entry |
| grants permission for a specific user to perform a specific operation on an |
| existing connection.</p> |
| <p>The <code class="classname">guacamole_connection_permission</code> table contains the |
| following columns:</p> |
| <div class="variablelist"><dl><dt><span class="term"><span class="property">user_id</span></span></dt><dd> |
| <p>The value of the <span class="property">user_id</span> column of the entry |
| associated with the user owning this permission.</p> |
| </dd><dt><span class="term"><span class="property">connection_id</span></span></dt><dd> |
| <p>The value of the <span class="property">connection_id</span> column of the |
| entry associated with the connection affected by this permission. |
| This is the connection that would be the object of the operation |
| represented by this permission.</p> |
| </dd><dt><span class="term"><span class="property">permission</span></span></dt><dd> |
| <p>The permission being granted. This column can have one of four |
| possible values: <code class="constant">ADMINISTER</code>, which grants the |
| ability to add or remove permissions which affect the connection, |
| <code class="constant">READ</code>, which grants the ability to read data |
| associated with the connection (a prerequisite for connecting), |
| <code class="constant">UPDATE</code>, which grants the ability to update |
| data associated with the connection, or <code class="constant">DELETE</code>, |
| which grants the ability to delete the connection.</p> |
| </dd></dl></div> |
| </div> |
| <div class="section" title="Connection group permissions"><div class="titlepage"><div><div><h4 class="title"><a id="idp919728"></a>Connection group permissions</h4></div></div></div> |
| |
| <a id="idp920544" class="indexterm"></a> |
| <p>Connection group permissions are defined by entries in the |
| <code class="classname">guacamole_connection_group_permission</code> table. Each |
| entry grants permission for a specific user to perform a specific operation on |
| an existing connection group.</p> |
| <p>The <code class="classname">guacamole_connection_group_permission</code> table |
| contains the following columns:</p> |
| <div class="variablelist"><dl><dt><span class="term"><span class="property">user_id</span></span></dt><dd> |
| <p>The value of the <span class="property">user_id</span> column of the entry |
| associated with the user owning this permission.</p> |
| </dd><dt><span class="term"><span class="property">connection_group_id</span></span></dt><dd> |
| <p>The value of the <span class="property">connection_group_id</span> column |
| of the entry associated with the connection group affected by this |
| permission. This is the connection group that would be the object of |
| the operation represented by this permission.</p> |
| </dd><dt><span class="term"><span class="property">permission</span></span></dt><dd> |
| <p>The permission being granted. This column can have one of four |
| possible values: <code class="constant">ADMINISTER</code>, which grants the |
| ability to add or remove permissions which affect the connection |
| group, <code class="constant">READ</code>, which grants the ability to read |
| data associated with the connection group, |
| <code class="constant">UPDATE</code>, which grants the ability to update |
| data associated with the connection group, or |
| <code class="constant">DELETE</code>, which grants the ability to delete |
| the connection group (and implicitly its contents).</p> |
| </dd></dl></div> |
| </div> |
| </div> |
| </div> |
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