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安全强化你的 Linux 服务器的七个步骤
阅读量:196 次
发布时间:2019-02-28

本文共 1528 字,大约阅读时间需要 5 分钟。

??????Linux???????

?????????????????????????????????????????Linux??????????

1. ????????????

???????????????????????????????????????????????????????????

  • ? Ubuntu ? Debian ??

    sudo apt update && sudo apt upgrade -y
  • ? Fedora?CentOS ? RHEL ??

    sudo dnf upgrade -y

2. ??????

??????????????root??????????????????????sudo???

  • ??????

    sudo adduser
  • ??usermod????????sudo???

    sudo usermod -a -G sudo

3. ??SSH??

??SSH?????????????ssh-copy-id?????????????????

  • ???????????

    ssh-copy-id @ip_address

????????????????????

4. ????SSH??

????????????????SSH?????????

  • ??SSH?????

    ??/etc/ssh/sshd_config?????????

    PasswordAuthentication no
  • ??root?????

    PermitRootLogin no
  • ??IP?????

    ??AddressFamily?????SSH?????IPv4???

    AddressFamily inet
  • ??SSH???

    ? Ubuntu ??

    sudo service sshd restart

    ? Fedora ? CentOS ??

    sudo systemctl restart sshd

5. ?????

????????????????????????????Ubuntu??ufw????????????????

  • ??UFW?

    sudo apt install ufw -y
  • ????????

    sudo ufw allow sshsudo ufw allow httpsudo ufw allow https
  • ??????

    sudo ufw enable
  • ????????

    sudo ufw status

6. ??Fail2ban

Fail2ban??????????????????????????IP???

  • ??Fail2ban?

    sudo apt install fail2ban -y
  • ???????

    sudo cp /etc/fail2ban/jail.conf /etc/fail2ban/jail.local
  • ??Fail2ban???

    sudo service fail2ban restart
  • ?????

    sudo fail2ban-client status ssh

7. ????????

??????????????????????????ss??????????????

  • ??????????

    sudo ss -atpu
  • ?????????

    ? Debian/Ubuntu ??

    sudo apt purge

    ? Red Hat/CentOS ??

    sudo yum remove

??????????????Linux?????????????????????????????????????????????????????????????????????????????????????????????

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