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Guide to the Secure Configuration of openSUSE

Rules, Groups, and Values defined within the XCCDF Benchmark

  • Disable Cyrus IMAP

    If the system does not need to operate as an IMAP or POP3 server, the Cyrus IMAP software should be removed.
    Group
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  • Disable Dovecot

    If the system does not need to operate as an IMAP or POP3 server, the dovecot software should be disabled and removed.
    Group
    Show

  • Kerberos

    The Kerberos protocol is used for authentication across non-secure network. Authentication can happen between various types of principals -- users,...
    Group
    Show

  • LDAP

    LDAP is a popular directory service, that is, a standardized way of looking up information from a central database. openSUSE includes software that...
    Group
    Show

  • Configure OpenLDAP Clients

    This section provides information on which security settings are important to configure in OpenLDAP clients by manually editing the appropriate con...
    Group
    Show

  • Configure OpenLDAP Server

    This section details some security-relevant settings for an OpenLDAP server.
    Group
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  • SSH Approved MACs by FIPS

    Specify the FIPS approved MACs (message authentication code) algorithms that are used for data integrity protection by the SSH server.
    Value
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  • Install and Protect LDAP Certificate Files

    Create the PKI directory for LDAP certificates if it does not already exist: <pre>$ sudo mkdir /etc/pki/tls/ldap $ sudo chown root:root /etc/pki/tl...
    Group
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  • Mail Server Software

    Mail servers are used to send and receive email over the network. Mail is a very common service, and Mail Transfer Agents (MTAs) are obvious target...
    Group
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  • The Postfix package is installed

    A mail server is required for sending emails. The <code>postfix</code> package can be installed with the following command: <pre> $ sudo zypper ins...
    Rule Medium Severity
    Show

  • Configure SMTP For Mail Clients

    This section discusses settings for Postfix in a submission-only e-mail configuration.
    Group
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  • Postfix Network Interfaces

    The setting for inet_interfaces in /etc/postfix/main.cf
    Value
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  • Postfix relayhost

    Specify the host all outbound email should be routed into.
    Value
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  • Postfix Root Mail Alias

    Specify an email address (string) for a root mail alias.
    Value
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  • Configure System to Forward All Mail For The Root Account

    Make sure that mails delivered to root user are forwarded to a monitored email address. Make sure that the address <xccdf-1.2:sub idref="xccdf_org....
    Rule Medium Severity
    Show

  • Configure System to Forward All Mail From Postmaster to The Root Account

    Verify the administrators are notified in the event of an audit processing failure. Check that the "/etc/aliases" file has a defined value for "roo...
    Rule Medium Severity
    Show

  • Configure System to Forward All Mail through a specific host

    Set up a relay host that will act as a gateway for all outbound email. Edit the file <code>/etc/postfix/main.cf</code> to ensure that only the foll...
    Rule Medium Severity
    Show

  • Configure Operating System to Protect Mail Server

    The guidance in this section is appropriate for any host which is operating as a site MTA, whether the mail server runs using Sendmail, Postfix, or...
    Group
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  • SSH session Idle time

    Specify duration of allowed idle time.
    Value
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  • Configure SSL Certificates for Use with SMTP AUTH

    If SMTP AUTH is to be used, the use of SSL to protect credentials in transit is strongly recommended. There are also configurations for which it ma...
    Group
    Show

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