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Guide to the Secure Configuration of UnionTech OS Server 20

Rules, Groups, and Values defined within the XCCDF Benchmark

  • Read Sections Completely and in Order

    Each section may build on information and recommendations discussed in prior sections. Each section should be read and understood completely; instr...
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  • Reboot Required

    A system reboot is implicitly required after some actions in order to complete the reconfiguration of the system. In many cases, the changes will n...
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  • Root Shell Environment Assumed

    Most of the actions listed in this document are written with the assumption that they will be executed by the root user running the <code>/bin/bash...
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  • Test in Non-Production Environment

    This guidance should always be tested in a non-production environment before deployment. This test environment should simulate the setup in which t...
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  • Dectivate firewalld Rules

    Firewalls can be used to separate networks into different zones based on the level of trust the user has decided to place on the devices and traffi...
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  • Network Manager

    The NetworkManager daemon configures a variety of network connections. This section discusses how to configure NetworkManager.
    Group
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  • NetoworkManager DNS Mode

    This sets how NetworkManager handles DNS. none - NetworkManager will not modify resolv.conf. default - NetworkManager will update /etc/resolv.con...
    Value
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  • Verify File Hashes with RPM

    Without cryptographic integrity protections, system executables and files can be altered by unauthorized users without detection. The RPM package m...
    Rule High Severity
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  • Verify and Correct File Permissions with RPM

    The RPM package management system can check file access permissions of installed software packages, including many that are important to system sec...
    Rule High Severity
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  • Ensure /dev/shm is configured

    The <code>/dev/shm</code> is a traditional shared memory concept. One program will create a memory portion, which other processes (if permitted) ca...
    Rule Low Severity
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  • Ensure PAM Displays Last Logon/Access Notification

    To configure the system to notify users of last logon/access using <code>pam_lastlog</code>, add or correct the <code>pam_lastlog</code> settings i...
    Rule Low Severity
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  • Record Attempts to Alter Logon and Logout Events

    The audit system already collects login information for all users and root. If the <code>auditd</code> daemon is configured to use the <code>augenr...
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  • Type of hostname to record the audit event

    Type of hostname to record the audit event
    Value
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  • Restrict unprivileged access to the kernel syslog

    Enforce restrictions on unprivileged users reading the kernel syslog via dmesg(8). The configuration that was used to build kernel is available at...
    Rule Medium Severity
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  • Ensure Log Files Are Owned By Appropriate Group

    The group-owner of all log files written by <code>rsyslog</code> should be <code>root</code>. These log files are determined by the second part of ...
    Rule Medium Severity
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  • Verify that All World-Writable Directories Have Sticky Bits Set

    When the so-called 'sticky bit' is set on a directory, only the owner of a given file may remove that file from the directory. Without the sticky b...
    Rule Medium Severity
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  • Ensure All SGID Executables Are Authorized

    The SGID (set group id) bit should be set only on files that were installed via authorized means. A straightforward means of identifying unauthoriz...
    Rule Medium Severity
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  • Verify Permissions on group File

    To properly set the permissions of /etc/group, run the command: 
    $ sudo chmod 0644 /etc/group
    Rule Medium Severity
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  • 389 Directory Server

    389 Directory Server is a popular open-source LDAP server for Linux.
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  • SSH Strong 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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