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Guide to the Secure Configuration of Alibaba Cloud Linux 2

Rules, Groups, and Values defined within the XCCDF Benchmark

  • Disable SNMP Server if Possible

    The system includes an SNMP daemon that allows for its remote monitoring, though it not installed by default. If it was installed and activated but...
    Group
  • Verify Group Ownership on SSH Server Private *_key Key Files

    SSH server private keys, files that match the /etc/ssh/*_key glob, must be group-owned by root group.
    Rule Medium Severity
  • Verify Group Ownership on SSH Server Public *.pub Key Files

    SSH server public keys, files that match the /etc/ssh/*.pub glob, must be group-owned by root group.
    Rule Medium Severity
  • Configure SNMP Server if Necessary

    If it is necessary to run the snmpd agent on the system, some best practices should be followed to minimize the security risk from the installation...
    Group
  • SNMP read-only community string

    Specify the SNMP community string used for read-only access.
    Value
  • SNMP read-write community string

    Specify the SNMP community string used for read-write access.
    Value
  • SSH Server

    The SSH protocol is recommended for remote login and remote file transfer. SSH provides confidentiality and integrity for data exchanged between tw...
    Group
  • SSH enabled firewalld zone

    Specify firewalld zone to enable SSH service. This value is used only for remediation purposes.
    Value
  • SSH Approved ciphers by FIPS

    Specify the FIPS approved ciphers that are used for data integrity protection by the SSH server.
    Value
  • SSH Approved MACs by FIPS

    Specify the FIPS approved MACs (message authentication code) algorithms that are used for data integrity protection by the SSH server.
    Value
  • SSH session Idle time

    Specify duration of allowed idle time.
    Value
  • SSH Server Listening Port

    Specify port the SSH server is listening.
    Value
  • SSH Max authentication attempts

    Specify the maximum number of authentication attempts per connection.
    Value
  • SSH is required to be installed

    Specify if the Policy requires SSH to be installed. Used by SSH Rules to determine if SSH should be uninstalled or configured.<br> A value of 0 mea...
    Value
  • SSH Strong KEX by FIPS

    Specify the FIPS approved KEXs (Key Exchange Algorithms) algorithms that are used for methods in cryptography by which cryptographic keys are exch...
    Value
  • SSH Max Sessions Count

    Specify the maximum number of open sessions permitted.
    Value
  • SSH Max Keep Alive Count

    Specify the maximum number of idle message counts before session is terminated.
    Value
  • Install the OpenSSH Server Package

    The <code>openssh-server</code> package should be installed. The <code>openssh-server</code> package can be installed with the following command: <...
    Rule Medium Severity
  • Remove the OpenSSH Server Package

    The <code>openssh-server</code> package should be removed. The <code>openssh-server</code> package can be removed with the following command: <pre>...
    Rule Medium Severity
  • Disable SSH Server If Possible

    The SSH server service, sshd, is commonly needed. However, if it can be disabled, do so. This is unusual, as SSH is a common method for encrypted ...
    Rule High Severity

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