ÏÂÁîÐй¤¾ß£ºÓ¦¶ÔLinuxЧÀÍÆ÷Çå¾²ÌôÕ½µÄÀûÆ÷
ÏÂÁîÐй¤¾ß£ºÓ¦¶ÔLinuxЧÀÍÆ÷Çå¾²ÌôÕ½µÄÀûÆ÷
Ëæ×Å»¥ÁªÍøµÄÉú³¤£¬LinuxЧÀÍÆ÷µÄʹÓÃÒѾ±äµÃºÜÊÇÆձ顣Ȼ¶ø£¬ËæÖ®¶øÀ´µÄÇå¾²ÌôÕ½Ò²ÈÕÒæÑÏÖØ¡£×÷ΪϵͳÖÎÀíÔ±»ò¿ª·¢Ö°Ô±£¬ÎÒÃÇÐèҪѰÕÒһЩ¸ßЧ¡¢Àû±ãµÄ¹¤¾ßÀ´×ÊÖúÎÒÃÇÓ¦¶ÔÖÖÖÖÇå¾²ÎÊÌâ¡£Õâʱ£¬ÏÂÁîÐй¤¾ß¾Í³ÉΪ×ðÁú¿Ê±ÀûÆ÷ÁË¡£±¾ÎĽ«ÏÈÈݼ¸¸ö¹¦Ð§Ç¿Ê¢µÄÏÂÁîÐй¤¾ß£¬×ÊÖúÎÒÃǽâ¾öLinuxЧÀÍÆ÷ÉϵÄÇå¾²ÎÊÌâ¡£
nmap£º¶Ë¿ÚɨÃ蹤¾ß
nmapÊÇÒ»¸ö³£ÓõĶ˿ÚɨÃ蹤¾ß£¬¿ÉÒÔ×ÊÖúÎÒÃÇ·¢Ã÷ЧÀÍÆ÷ÉÏ¿ª·ÅµÄ¶Ë¿Ú¡£Í¨¹ý¼ì²éЧÀÍÆ÷ÉÏ¿ª·ÅµÄ¶Ë¿Ú£¬ÎÒÃÇ¿ÉÒÔʵʱ·¢Ã÷DZÔÚµÄÇå¾²Îó²î£¬²¢½ÓÄÉÐëÒªµÄ²½·¥½â¾öËüÃÇ¡£ÒÔÏÂÊÇÒ»¸öʹÓÃnmapɨÃèЧÀÍÆ÷¿ª·Å¶Ë¿ÚµÄʾÀý£º
nmap -p 1-65535 <ЧÀÍÆ÷IPµØµã>
µÇ¼ºó¸´ÖÆ
fail2ban£º±ÜÃⱩÁ¦Æƽ⹤¾ß
fail2ban¿ÉÒÔ×ÊÖúÎÒÃDZÜÃⱩÁ¦Æƽ⹥»÷£¬Ëü»á¼à¿ØϵͳÈÕÖ¾£¬²¢Æ¾Ö¤ÈÕÖ¾ÖеÄÒì³£ÐÐΪ¾ÙÐÐ×èÖ¹¡£ÒÔÏÂÊÇÒ»¸öʹÓÃfail2ban±ÜÃâSSH±©Á¦Æƽ⹥»÷µÄʾÀý£º
sudo apt-get install fail2ban sudo cp /etc/fail2ban/jail.conf /etc/fail2ban/jail.local sudo vi /etc/fail2ban/jail.local
µÇ¼ºó¸´ÖÆ
ÔÚÉèÖÃÎļþÖУ¬ÕÒµ½[sshd]Ò»½Ú£¬½«enabled = false¸ÄΪenabled = true¡£ÉúÑÄÎļþ²¢Í˳ö¡£
È»ºóÖØÆôfail2banЧÀÍ£º
sudo systemctl restart fail2ban
µÇ¼ºó¸´ÖÆ
lynis£ºÏµÍ³Ç徲ɨÃ蹤¾ß
lynisÊÇÒ»¿î¹¦Ð§Ç¿Ê¢µÄϵͳÇ徲ɨÃ蹤¾ß£¬¿ÉÒÔ×ÊÖúÎÒÃÇ·¢Ã÷ϵͳÉèÖÃÖб£´æµÄÇå¾²ÎÊÌ⣬ÒÔ¼°Ìṩ½â¾öÒªÁì¡£ÒÔÏÂÊÇÒ»¸öʹÓÃlynisɨÃèϵͳÇå¾²ÎÊÌâµÄʾÀý£º
sudo apt-get install lynis sudo lynis audit system
µÇ¼ºó¸´ÖÆ
logwatch£ºÈÕ־ͳ¼Æ¹¤¾ß
logwatch¿ÉÒÔ½«ÏµÍ³ÈÕÖ¾ÒÔÓʼþµÄÐÎʽ·¢Ë͸øÎÒÃÇ£¬Àû±ãÎÒÃÇʵʱ¼ì²éϵͳÈÕÖ¾£¬·¢Ã÷Òì³£ÇéÐΡ£ÒÔÏÂÊÇÒ»¸öʹÓÃlogwatch·¢ËÍϵͳÈÕÖ¾ÓʼþµÄʾÀý£º
sudo apt-get install logwatch sudo cp /usr/share/logwatch/default.conf/logwatch.conf /etc/logwatch/conf/logwatch.conf sudo vi /etc/logwatch/conf/logwatch.conf
µÇ¼ºó¸´ÖÆ
ÔÚÉèÖÃÎļþÖУ¬ÕÒµ½Output = stdoutÒ»ÐУ¬½«Æä¸ÄΪOutput = mail¡£ÉúÑÄÎļþ²¢Í˳ö¡£
È»ºóÉèÖÃÓʼþÎüÊÕÕßµÄÓÊÏäµØµã£¬½«ÆäÌí¼Óµ½ÉèÖÃÎļþÖУº
sudo vi /etc/logwatch/conf/logwatch.conf
µÇ¼ºó¸´ÖÆ
ÕÒµ½MailToÒ»ÐУ¬½«Æä¸ÄΪÄãµÄÓÊÏäµØµã¡£ÉúÑÄÎļþ²¢Í˳ö¡£
×îºó£¬²âÊÔÓʼþ·¢Ë͹¦Ð§£º
sudo logwatch
µÇ¼ºó¸´ÖÆ
ÒÔÉÏÊǼ¸¸ö³£ÓõÄÏÂÁîÐй¤¾ß£¬¿ÉÒÔ×ÊÖúÎÒÃÇÓ¦¶ÔLinuxЧÀÍÆ÷ÉϵÄÇå¾²ÌôÕ½¡£ËäÈ»£¬³ýÁËÕâЩ¹¤¾ß£¬ÉÐÓÐÐí¶àÆäËûµÄ¹¤¾ß¿ÉÒÔʹÓá£Ï£Íû±¾ÎĶԶÁÕßÄܹ»ÓÐËù×ÊÖú£¬¸üºÃµØÌá¸ßLinuxЧÀÍÆ÷µÄÇå¾²ÐÔ¡£
ÒÔÉϾÍÊÇÏÂÁîÐй¤¾ß£ºÓ¦¶ÔLinuxЧÀÍÆ÷Çå¾²ÌôÕ½µÄÀûÆ÷µÄÏêϸÄÚÈÝ£¬¸ü¶àÇë¹Ø×¢±¾ÍøÄÚÆäËüÏà¹ØÎÄÕ£¡