No-Undo / No-Redo (performance:slowest recovery:fastest) Redo / No-Undo Recovery without Logging: Shadow Paging（LMDB） 16 Undo log(记录旧值) (Steal / Force) 恢复时，从后往前，对于未提 交的事务的日志做undo操 作。 日志

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pam pamservice=greenpl um Note If PAM is set up to read /etc/shadow, authentication will fail because the PostgreSQL server is started by a non-root user. This is not should be locked. grep "^+:" /etc/passwd /etc/shadow /etc/group cd /etc chown root:root passwd shadow group gshadow chmod 644 passwd group chmod 400 shadow gshadow Find all the files that are world-writable your security policy requirements. cd /etc chown root:root passwd shadow group gshadow chmod 644 passwd group chmod 400 shadow gshadow Parent topic: Greenplum Database Security Configuration Guide

identify the service from which to obtain the PAM configuration. Note: If PAM is set up to read /etc/shadow, authentication will fail because the PostgreSQL server is started by a non-root user. This is not output. Any accounts listed by running this command should be locked. grep "^+:" /etc/passwd /etc/shadow /etc/group VMware Tanzu Greenplum 6 Documentation VMware, Inc 442 Note: We strongly recommend change their passwords after initial setup. cd /etc chown root:root passwd shadow group gshadow chmod 644 passwd group chmod 400 shadow gshadow Find all the files that are world-writable and that do not have

identify the service from which to obtain the PAM configuration. Note If PAM is set up to read /etc/shadow, authentication will fail because the PostgreSQL server is started by a non-root user. This is not grep "^+:" /etc/passwd /etc/shadow /etc/group Note: We strongly recommend that customers change their passwords after initial setup. cd /etc chown root:root passwd shadow group gshadow chmod 644 passwd passwd group chmod 400 shadow gshadow Find all the files that are world-writable and that do not have their sticky bits set. find / -xdev -type d \( -perm -0002 -a ! -perm -1000 \) -print Set the sticky

identify the service from which to obtain the PAM configuration. Note: If PAM is set up to read /etc/shadow, authentication will fail because the PostgreSQL server is started by a non-root user. This is not grep "^+:" /etc/passwd /etc/shadow /etc/group Note: We strongly recommend that customers change their passwords after initial setup. cd /etc chown root:root passwd shadow group gshadow chmod 644 passwd passwd group chmod 400 shadow gshadow Find all the files that are world-writable and that do not have their sticky bits set. find / -xdev -type d \( -perm -0002 -a ! -perm -1000 \) -print Set the sticky

identify the service from which to obtain the PAM configuration. Note: If PAM is set up to read /etc/shadow, authentication will fail because the PostgreSQL server is started by a non-root user. This is not grep "^+:" /etc/passwd /etc/shadow /etc/group Note: We strongly recommend that customers change their passwords after initial setup. cd /etc chown root:root passwd shadow group gshadow chmod 644 passwd passwd group chmod 400 shadow gshadow Find all the files that are world-writable and that do not have their sticky bits set. find / -xdev -type d \( -perm -0002 -a ! -perm -1000 \) -print Set the sticky

password (encrypted), and the Network Access Server (NAS) Identifier. If PAM is set up to read /etc/shadow, authentication will fail because the PostgreSQL server is started by a non-root user. This is not should be locked. grep "^+:" /etc/passwd /etc/shadow /etc/group cd /etc chown root:root passwd shadow group gshadow chmod 644 passwd group chmod 400 shadow gshadow Find all the files that are world-writable reflect your security policy requirements. cd /etc chown root:root passwd shadow group gshadow chmod 644 passwd group chmod 400 shadow gshadow Parent topic: Greenplum Database Security Configuration Guide

grep "^+:" /etc/passwd /etc/shadow /etc/group Note: We strongly recommend that customers change their passwords after initial setup. cd /etc chown root:root passwd shadow group gshadow chmod 644 passwd passwd group chmod 400 shadow gshadow Find all the files that are world-writable and that do not have their sticky bits set. find / -xdev -type d \( -perm -0002 -a ! -perm -1000 \) -print Set the sticky your security policy requirements. cd /etc chown root:root passwd shadow group gshadow chmod 644 passwd group chmod 400 shadow gshadow Parent topic: Greenplum Database Best Practices Encrypting

grep "^+:" /etc/passwd /etc/shadow /etc/group Note: We strongly recommend that customers change their passwords after initial setup. cd /etc chown root:root passwd shadow group gshadow chmod 644 passwd passwd group chmod 400 shadow gshadow Find all the files that are world-writable and that do not have their sticky bits set. find / -xdev -type d \( -perm -0002 -a ! -perm -1000 \) -print Set the sticky your security policy requirements. cd /etc chown root:root passwd shadow group gshadow chmod 644 passwd group chmod 400 shadow gshadow Parent topic: Greenplum Database Best Practices Encrypting

grep "^+:" /etc/passwd /etc/shadow /etc/group Note: We strongly recommend that customers change their passwords after initial setup. cd /etc chown root:root passwd shadow group gshadow chmod 644 passwd passwd group chmod 400 shadow gshadow Find all the files that are world-writable and that do not have their sticky bits set. find / -xdev -type d \( -perm -0002 -a ! -perm -1000 \) -print Set the sticky your security policy requirements. cd /etc chown root:root passwd shadow group gshadow chmod 644 passwd group chmod 400 shadow gshadow Parent topic: Greenplum Database Best Practices Encrypting