Arcfra logoDocs
OverviewDeploymentManagementOperationReference
    ACOS 6.1.1
  • Arcfra Cloud Operating System

Default security configurations on ACOS nodes

After the ACOS system is installed, the following security items will be configured on the ACOS nodes by default.

Item Default setting
Connection timeout After logging in to a node, if the user performs no operations within 30 minutes, its account will be automatically disconnected.
Password complexity When configuring passwords for accounts other than root and arcfra:
  • The password must be at least 8 characters.
  • The password must contain at least 1 number, 1 uppercase letter, 1 lowercase letter, and 1 special character.
  • The reset password cannot be the same as the previous 5 passwords.
Failed login attempt limit After 5 consecutive failed login attempts, the account will be locked for 10 minutes.
SSH configuration
  • The root account is not allowed to log in to the node through SSH remotely.
  • The MACs and Ciphers configurations of the SSH service support the CTR and SHA2 algorithms, but do not support the CBC, MD5, and SHA1 algorithms.