Guide to the Secure Configuration of Red Hat Enterprise Linux 10
Rules, Groups, and Values defined within the XCCDF Benchmark
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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 -
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 -
Verify Group Who Owns Backup shadow File
To properly set the owner of/etc/shadow-
, run the command:$ sudo chown root /etc/shadow-
Rule Medium Severity -
Disable DCCP Support
The Datagram Congestion Control Protocol (DCCP) is a relatively new transport layer protocol, designed to support streaming media and telephony. T...Rule Medium Severity -
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 -
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 -
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 -
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 -
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 -
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 -
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 -
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 -
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...Rule Unknown Severity -
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...Group -
Network Related Kernel Runtime Parameters for Hosts and Routers
Certain kernel parameters should be set for systems which are acting as either hosts or routers to improve the system's ability defend against cert...Group -
net.ipv4.conf.all.accept_redirects
Disable ICMP Redirect AcceptanceValue -
net.ipv4.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 -
Disable RDS Support
The Reliable Datagram Sockets (RDS) protocol is a transport layer protocol designed to provide reliable high-bandwidth, low-latency communications ...Rule Low Severity -
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 -
net.ipv4.conf.all.forwarding
Toggle IPv4 ForwardingValue
Node 2
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