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Guide to the Secure Configuration of Red Hat Enterprise Linux 9

Rules, Groups, and Values defined within the XCCDF Benchmark

  • Configure Auto Configuration on All IPv6 Interfaces By Default

    To set the runtime status of the <code>net.ipv6.conf.default.autoconf</code> kernel parameter, run the following command: <pre>$ sudo sysctl -w net...
    Rule Unknown Severity
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  • Configure Maximum Number of Autoconfigured Addresses on All IPv6 Interfaces By Default

    To set the runtime status of the <code>net.ipv6.conf.default.max_addresses</code> kernel parameter, run the following command: <pre>$ sudo sysctl -...
    Rule Unknown Severity
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  • Configure Denying Router Solicitations on All IPv6 Interfaces By Default

    To set the runtime status of the <code>net.ipv6.conf.default.router_solicitations</code> kernel parameter, run the following command: <pre>$ sudo s...
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  • net.ipv4.conf.default.shared_media

    Controls whether the system can send(router) or accept(host) RFC1620 shared media redirects. <code>shared_media</code> for the interface will be en...
    Value
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  • net.ipv4.icmp_echo_ignore_broadcasts

    Ignore all ICMP ECHO and TIMESTAMP requests sent to it via broadcast/multicast
    Value
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  • net.ipv4.icmp_ignore_bogus_error_responses

    Enable to prevent unnecessary logging
    Value
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  • net.ipv4.tcp_invalid_ratelimit

    Configure the maximal rate for sending duplicate acknowledgments in response to incoming invalid TCP packets.
    Value
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  • net.ipv4.tcp_rfc1337

    Enable to enable TCP behavior conformant with RFC 1337
    Value
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  • Limit Network-Transmitted Configuration if Using Static IPv6 Addresses

    To limit the configuration information requested from other systems and accepted from the network on a system that uses statically-configured IPv6 ...
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  • Kernel Parameters Which Affect Networking

    The <code>sysctl</code> utility is used to set parameters which affect the operation of the Linux kernel. Kernel parameters which affect networking...
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