Services State
Information on the server services, such as DNS service, FTP service,
Mail service and so on, and their current state is held by the
services_state node, which is presented by complex type
servicesState (plesk_server.xsd). The node is structured as follows:

- The srv node is required. It wraps the collection of data describing particular service . Data type: none.
 - The id node is required. It holds the service identifier. Data type: string.
 - The title node is required. It holds the service name. Data type: string.
 - The state node is required. It holds the current state of the service. Data type: string. Allowed values: running | stopped | none.
 - The error node is required if an error occurred while the service running. The node contains the text of the service error. Data type: string.
 
A response packet received from server can look as follows:
<packet>
    <server>
        <get>
            <result>
                <status>ok</status>
                <services_state>
                    <srv>
                        <id>web</id>
                        <title>Web Server (Apache)</title>
                        <state>running</state>
                    </srv>
                    <srv>
                        <id>smtp</id>
                        <title>SMTP Server (QMail)</title>
                        <state>running</state>
                    </srv>
                    <srv>
                        <id>mail</id>
                        <title>IMAP/POP3 Server (Courier-IMAP)</title>
                        <state>running</state>
                    </srv>
                    <srv>
                        <id>dns</id>
                        <title>DNS Server (BIND)</title>
                        <state>running</state>
                    </srv>
                    <srv>
                        <id>tomcat</id>
                        <title>Tomcat</title>
                        <state>running</state>
                    </srv>
                    <srv>
                        <id>postgresql</id>
                        <title>PostgreSQL</title>
                        <state>stopped</state>
                    </srv>
                    <srv>
                        <id>spamassassin</id>
                        <title>SpamAssassin</title>
                        <state>running</state>
                    </srv>
                    <srv>
                        <id>drweb</id>
                        <title>Dr.Web antivirus</title>
                        <state>stopped</state>
                    </srv>
                </services_state>
            </result>
        </get>
    </server>
</packet>