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SSH£¨Secure Shell£©Ô¶³ÌµÇ¼

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ssh username@server_ip_address

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fail2ban×èµ²¶ñÒâIP

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sudo apt-get install fail2ban
sudo cp /etc/fail2ban/jail.conf /etc/fail2ban/jail.local
sudo vi /etc/fail2ban/jail.local

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ufwÉèÖ÷À»ðǽ

ufw£¨Uncomplicated Firewall£©ÊÇLinuxϵͳÖÐÒ»¸ö¼òÆÓÒ×ÓõķÀ»ðǽÉèÖù¤¾ß¡£ËüÄܹ»¹ýÂËÍøÂçÁ÷Á¿ £¬±£»¤Ð§ÀÍÆ÷ÃâÊÜδ¾­ÊÚȨµÄ»á¼û¡£

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sudo apt-get install ufw
sudo ufw default deny incoming
sudo ufw default allow outgoing
sudo ufw allow ssh
sudo ufw enable

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lynisϵͳÇå¾²Éó¼Æ

lynisÊÇÒ»¸ö¿ªÔ´µÄϵͳÇå¾²Éó¼Æ¹¤¾ß £¬ÓÃÓÚʶ±ðDZÔÚµÄÇå¾²ÎÊÌâºÍÎó²î¡£Ëü»á¶ÔЧÀÍÆ÷¾ÙÐÐÖÜÈ«µÄɨÃè £¬²¢ÌṩÏêϸµÄ±¨¸æÒÔ¹©ÖÎÀíÔ±¾ÙÐÐÐÞ¸´¡£

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sudo apt-get install lynis
sudo lynis audit system

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logwatch¼à¿ØÈÕÖ¾

logwatchÊÇÒ»¸öÈÕÖ¾¼à¿Ø¹¤¾ß £¬¿ÉÒÔ°´ÆÚÆÊÎöЧÀÍÆ÷µÄÈÕÖ¾Îļþ £¬²¢ÌìÉúÕªÒª±¨¸æ¡£Í¨¹ý¼ì²éЧÀÍÆ÷µÄÈÕÖ¾Ô˶¯ £¬Äú¿ÉÒÔÏàʶЧÀÍÆ÷µÄÐÐΪºÍÇ徲״̬¡£

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sudo apt-get install logwatch
sudo vi /etc/cron.daily/00logwatch

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