Shulou(Shulou.com)06/01 Report--

1. Close selinux

two。 Prohibit ssh from using root connection, change ssh port, and forbid login with empty password

3. Managing General user Authorization with sudo Control: privilege minimization

4. Configure Boot self-boot sshd network rsyslog crond sysstat

5. Configure yum Feed

6.ntp time synchronization

7. Enlarge the file descriptor

8. Kernel tuning

9. Lock the key file / etc/passwd / etc/shadow / etc/group / etc/gshadow / etc/inittab

10. Minimize installation system

11. Change character set: zh_CN.UTF-8 (/ etc/sysconfig/i18n) environment variable: LANG

12 it is clear that the system has no users

13 clear version information, etc/issue

14grub menu encryption

15 prohibit ping from hiding targets

16 dozen patches: yum update-y: only newly installed systems need to be updated

17histrory

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