73e7f8ef4c
Epic: Security Planning shall support expectations presented in pre-sales presentations. Updated with review comments for Patch set 4 Updated with review comments for Patch set 3 Updated with review comments from Patch set 2 Updated with review comments from Patch set 1 Added summaries of items raised in pre-sales presentations Change-Id: Ic1e458dfd57ad7ab18923f3a1756007ad717efe1
64 lines
2.3 KiB
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64 lines
2.3 KiB
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.. xgp1595963622893
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.. _local-and-ldap-linux-user-accounts:
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==============================
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Local LDAP Linux User Accounts
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==============================
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You can manage regular Linux \(shadow\) user accounts on any host in the
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cluster using standard Linux commands.
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.. _local-and-ldap-linux-user-accounts-ul-zrv-zwf-mmb:
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- Local Linux user accounts should NOT be configured, only use local |LDAP|
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accounts for internal system purposes that would usually not be created by
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an end-user.
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- Password changes are not enforced automatically on the first login, and
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they are not propagated by the system \(only for 'sysadmin'\).
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- **If the administrator wants to provision additional access to the system, it is better to configure local LDAP Linux accounts.**
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- |LDAP| accounts are centrally managed; changes made on any host are
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propagated automatically to all hosts on the cluster.
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- |LDAP| user accounts behave as any local user account. They can be added
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to the sudoers list and can acquire OpenStack administration credentials.
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- The initial password must be changed immediately upon the first login.
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- Login sessions are logged out automatically after about 15 minutes of
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inactivity.
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- The accounts block following five consecutive unsuccessful login
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attempts. They unblock automatically after a period of about five minutes.
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- All authentication attempts are recorded on the file /var/log/auth.log
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of the target host.
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.. note::
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For security reasons, it is recommended that ONLY admin level users be
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allowed to |SSH| to the nodes of the |prod|. Non-admin level users should
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strictly use remote |CLIs| or remote web GUIs.
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Operational complexity:
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.. _local-and-ldap-linux-user-accounts-ul-bsv-zwf-mmb:
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- Passwords aging is automatically configured.
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- |LDAP| user accounts \(operator, admin\) are available by default on
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newly deployed hosts. For increased security, the admin and operator
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accounts must be used from the console ports of the hosts; no |SSH| access
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is allowed.
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- |prod| includes a script for creating |LDAP| Linux accounts with built-in
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Keystone user support. It provides an interactive method for setting up
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|LDAP| Linux user accounts with access to OpenStack commands. You can
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assign a limited shell or a bash shell.
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