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Guide to the Secure Configuration of Oracle Linux 10

Rules, Groups, and Values defined within the XCCDF Benchmark

  • Verify User Who Owns /etc/ipsec.d Directory

    To properly set the owner of /etc/ipsec.d, run the command: 
    $ sudo chown root /etc/ipsec.d
    Rule Medium Severity
    Show

  • Verify Permissions On /etc/ipsec.d Directory

    To properly set the permissions of /etc/ipsec.d, run the command: 
    $ sudo chmod 0700 /etc/ipsec.d
    Rule Medium Severity
    Show

  • Verify Group Who Owns /etc/ipsec.conf File

    To properly set the group owner of /etc/ipsec.conf, run the command: 
    $ sudo chgrp root /etc/ipsec.conf
    Rule Medium Severity
    Show

  • Verify Group Who Owns /etc/ipsec.secrets File

    To properly set the group owner of /etc/ipsec.secrets, run the command: 
    $ sudo chgrp root /etc/ipsec.secrets
    Rule Medium Severity
    Show

  • Verify User Who Owns /etc/ipsec.conf File

    To properly set the owner of /etc/ipsec.conf, run the command: 
    $ sudo chown root /etc/ipsec.conf
    Rule Medium Severity
    Show

  • Verify User Who Owns /etc/ipsec.secrets File

    To properly set the owner of /etc/ipsec.secrets, run the command: 
    $ sudo chown root /etc/ipsec.secrets
    Rule Medium Severity
    Show

  • Verify Permissions On /etc/ipsec.conf File

    To properly set the permissions of /etc/ipsec.conf, run the command: 
    $ sudo chmod 0644 /etc/ipsec.conf
    Rule Medium Severity
    Show

  • Verify Permissions On /etc/ipsec.secrets File

    To properly set the permissions of /etc/ipsec.secrets, run the command: 
    $ sudo chmod 0644 /etc/ipsec.secrets
    Rule Medium Severity
    Show

  • iptables and ip6tables

    A host-based firewall called <code>netfilter</code> is included as part of the Linux kernel distributed with the system. It is activated by default...
    Group
    Show

  • Verify Group Who Owns /etc/iptables Directory

    To properly set the group owner of /etc/iptables, run the command: 
    $ sudo chgrp root /etc/iptables
    Rule Medium Severity
    Show

  • Verify User Who Owns /etc/iptables Directory

    To properly set the owner of /etc/iptables, run the command: 
    $ sudo chown root /etc/iptables
    Rule Medium Severity
    Show

  • Verify Permissions On /etc/iptables Directory

    To properly set the permissions of /etc/iptables, run the command: 
    $ sudo chmod 0700 /etc/iptables
    Rule Medium Severity
    Show

  • IPv6

    The system includes support for Internet Protocol version 6. A major and often-mentioned improvement over IPv4 is its enormous increase in the numb...
    Group
    Show

  • Configure IPv6 Settings if Necessary

    A major feature of IPv6 is the extent to which systems implementing it can automatically configure their networking devices using information from ...
    Group
    Show

  • net.ipv6.conf.all.accept_ra_defrtr

    Accept default router in router advertisements?
    Value
    Show

  • net.ipv6.conf.all.accept_ra_pinfo

    Accept prefix information in router advertisements?
    Value
    Show

  • net.ipv6.conf.all.accept_ra_rtr_pref

    Accept router preference in router advertisements?
    Value
    Show

  • net.ipv6.conf.all.accept_redirects

    Toggle ICMP Redirect Acceptance
    Value
    Show

  • net.ipv6.conf.all.accept_source_route

    Trackers could be using source-routed packets to generate traffic that seems to be intra-net, but actually was created outside and has been redirec...
    Value
    Show

  • net.ipv6.conf.all.autoconf

    Enable auto configuration on IPv6 interfaces
    Value
    Show

  • net.ipv6.conf.all.max_addresses

    Maximum number of autoconfigured IPv6 addresses
    Value
    Show

  • net.ipv6.conf.all.router_solicitations

    Accept all router solicitations?
    Value
    Show

  • net.ipv6.conf.default.accept_ra_defrtr

    Accept default router in router advertisements?
    Value
    Show

  • net.ipv6.conf.default.accept_ra_pinfo

    Accept prefix information in router advertisements?
    Value
    Show

  • net.ipv6.conf.default.accept_ra_rtr_pref

    Accept router preference in router advertisements?
    Value
    Show

  • net.ipv6.conf.default.accept_redirects

    Toggle ICMP Redirect Acceptance By Default
    Value
    Show

  • net.ipv6.conf.default.accept_source_route

    Trackers could be using source-routed packets to generate traffic that seems to be intra-net, but actually was created outside and has been redirec...
    Value
    Show

  • Disable Kernel Parameter for Accepting Source-Routed Packets on all IPv6 Interfaces

    To set the runtime status of the <code>net.ipv6.conf.all.accept_source_route</code> kernel parameter, run the following command: <pre>$ sudo sysctl...
    Rule Medium Severity
    Show

  • Configure Auto Configuration on All IPv6 Interfaces

    To set the runtime status of the <code>net.ipv6.conf.all.autoconf</code> kernel parameter, run the following command: <pre>$ sudo sysctl -w net.ipv...
    Rule Unknown Severity
    Show

  • Configure Maximum Number of Autoconfigured Addresses on All IPv6 Interfaces

    To set the runtime status of the <code>net.ipv6.conf.all.max_addresses</code> kernel parameter, run the following command: <pre>$ sudo sysctl -w ne...
    Rule Unknown Severity
    Show

  • Configure Denying Router Solicitations on All IPv6 Interfaces

    To set the runtime status of the <code>net.ipv6.conf.all.router_solicitations</code> kernel parameter, run the following command: <pre>$ sudo sysct...
    Rule Unknown Severity
    Show

  • Configure Accepting Default Router in Router Advertisements on All IPv6 Interfaces By Default

    To set the runtime status of the <code>net.ipv6.conf.default.accept_ra_defrtr</code> kernel parameter, run the following command: <pre>$ sudo sysct...
    Rule Unknown Severity
    Show

  • Configure Accepting Prefix Information in Router Advertisements on All IPv6 Interfaces By Default

    To set the runtime status of the <code>net.ipv6.conf.default.accept_ra_pinfo</code> kernel parameter, run the following command: <pre>$ sudo sysctl...
    Rule Unknown Severity
    Show

  • Configure Accepting Router Preference in Router Advertisements on All IPv6 Interfaces By Default

    To set the runtime status of the <code>net.ipv6.conf.default.accept_ra_rtr_pref</code> kernel parameter, run the following command: <pre>$ sudo sys...
    Rule Unknown Severity
    Show

  • Disable Kernel Parameter for Accepting ICMP Redirects by Default on IPv6 Interfaces

    To set the runtime status of the <code>net.ipv6.conf.default.accept_redirects</code> kernel parameter, run the following command: <pre>$ sudo sysct...
    Rule Medium Severity
    Show

  • Disable Kernel Parameter for Accepting Source-Routed Packets on IPv6 Interfaces by Default

    To set the runtime status of the <code>net.ipv6.conf.default.accept_source_route</code> kernel parameter, run the following command: <pre>$ sudo sy...
    Rule Medium Severity
    Show

  • net.ipv4.conf.default.arp_filter

    Controls whether the ARP filter is enabled or not. 1 - Allows you to have multiple network interfaces on the same subnet, and have the ARPs for ea...
    Value
    Show

  • net.ipv4.conf.default.arp_ignore

    Control the response modes for ARP queries that resolve local target IP addresses: 0 - (default): reply for any local target IP address, configure...
    Value
    Show

  • net.ipv4.conf.all.rp_filter

    Enable to enforce sanity checking, also called ingress filtering or egress filtering. The point is to drop a packet if the source and destination I...
    Value
    Show

  • net.ipv4.conf.all.secure_redirects

    Enable to prevent hijacking of routing path by only allowing redirects from gateways known in routing table. Disable to refuse acceptance of secure...
    Value
    Show

  • net.ipv4.conf.all.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 ...
    Value
    Show

  • net.ipv4.conf.default.accept_redirects

    Disable ICMP Redirect Acceptance?
    Value
    Show

  • net.ipv4.conf.default.accept_source_route

    Disable IP source routing?
    Value
    Show

  • net.ipv4.conf.default.rp_filter

    Enables source route verification
    Value
    Show

  • net.ipv4.conf.default.secure_redirects

    Enable to prevent hijacking of routing path by only allowing redirects from gateways known in routing table. Disable to refuse acceptance of secure...
    Value
    Show

  • 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
    Show

  • net.ipv4.icmp_ignore_bogus_error_responses

    Enable to prevent unnecessary logging
    Value
    Show

  • net.ipv4.tcp_rfc1337

    Enable to enable TCP behavior conformant with RFC 1337
    Value
    Show

  • net.ipv4.tcp_syncookies

    Enable to turn on TCP SYN Cookie Protection
    Value
    Show

  • Disable Accepting Packets Routed Between Local Interfaces

    To set the runtime status of the <code>net.ipv4.conf.all.accept_local</code> kernel parameter, run the following command: <pre>$ sudo sysctl -w net...
    Rule Medium Severity
    Show

Node 2

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