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Guide to the Secure Configuration of Alibaba Cloud Linux 2

Rules, Groups, and Values defined within the XCCDF Benchmark

  • Configure Sending and Accepting Shared Media Redirects for All IPv4 Interfaces

    To set the runtime status of the <code>net.ipv4.conf.all.shared_media</code> kernel parameter, run the following command: <pre>$ sudo sysctl -w net...
    Rule Medium Severity
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  • Disable Kernel Parameter for Accepting ICMP Redirects by Default on IPv4 Interfaces

    To set the runtime status of the <code>net.ipv4.conf.default.accept_redirects</code> kernel parameter, run the following command: <pre>$ sudo sysct...
    Rule Medium Severity
    Show

  • Configure Sending and Accepting Shared Media Redirects by Default

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

  • Enable Kernel Parameter to Ignore ICMP Broadcast Echo Requests on IPv4 Interfaces

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

  • Verify Group Who Owns Backup passwd File

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

Node 2

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