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# ÔÊÐí»á¼ûWeb½Ó¿ÚµÄIPµØµã
ALLOWED_IP="192.168.1.100"

# ÔÊÐí»á¼ûWeb½Ó¿ÚµÄ¶Ë¿Ú
ALLOWED_PORT="80"

# ʹÓÃiptablesÉèÖ÷À»ðǽ¹æÔò
iptables -A INPUT -p tcp -s $ALLOWED_IP --dport $ALLOWED_PORT -j ACCEPT
iptables -A INPUT -p tcp --dport $ALLOWED_PORT -j DROP

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Õâ¸öÉèÖûáÔÊÐíIPµØµãΪ192.168.1.100µÄÖ÷»úͨ¹ý80¶Ë¿Ú»á¼ûWeb½Ó¿Ú£¬¶øÆäËûIPµØµãͨ¹ý¸Ã¶Ë¿ÚµÄ»á¼û½«±»¾Ü¾ø¡£

SSL/TLS¼ÓÃÜ

ʹÓÃSSL/TLS¼ÓÃÜ¿ÉÒÔ± £»¤Web½Ó¿ÚÉϵÄÊý¾Ý´«Êä¡£ÔÚÉèÖÃSSL/TLSʱ£¬ÎÒÃÇÐèÒªÌìÉú×Ô¼ºµÄ˽ԿºÍÖ¤Ê飬²¢½«ÆäÉèÖõ½WebЧÀÍÆ÷ÖС£ÒÔÏÂÊÇÒ»¸öʾÀýÉèÖ㬼ÙÉèÎÒÃÇʹÓÃNginx×÷ΪWebЧÀÍÆ÷£º

# ÌìÉú˽Կ
openssl genrsa -out private.key 2048

# ÌìÉúÖ¤ÊéÊðÃûÇëÇó
openssl req -new -key private.key -out csr.csr

# Ç©·¢Ö¤Êé
openssl x509 -req -in csr.csr -signkey private.key -out certificate.crt

# ½«Ë½Ô¿ºÍÖ¤ÊéÉèÖõ½Nginx
server {
    listen 443 ssl;
    server_name example.com;

    ssl_certificate /path/to/certificate.crt;
    ssl_certificate_key /path/to/private.key;

    # ÆäËûÉèÖÃ...
}

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Õâ¸öÉèÖûὫSSL/TLS¼ÓÃÜÓ¦Óõ½Web½Ó¿ÚÉÏ£¬È·±£Êý¾ÝÔÚ´«ÊäÀú³ÌÖв»±»ÇÔÈ¡»ò¸Ä¶¯¡£

ʹÓÃWebÓ¦Ó÷À»ðǽ£¨WAF£©

WebÓ¦Ó÷À»ðǽ£¨WAF£©¿ÉÒÔ×ÊÖúÎÒÃǼì²âºÍ×èÖ¹¶ñÒâÇëÇó¡£Ëü¿ÉÒÔÆÊÎöHTTPÇëÇ󣬲¢Æ¾Ö¤Ô¤½ç˵µÄ¹æÔò¼¯¹ýÂËÇëÇó¡£ÒÔÏÂÊÇÒ»¸öʾÀýÉèÖ㬼ÙÉèÎÒÃÇʹÓÃModSecurity×÷ΪWAF¹¤¾ß£º

# ×°ÖÃModSecurity
apt-get install libapache2-modsecurity -y

# ÉèÖÃModSecurity
vi /etc/modsecurity/modsecurity.conf

# ÆôÓÃModSecurity
vi /etc/apache2/mods-available/security2.conf

# ÖØÆôApacheЧÀÍ
service apache2 restart

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ÔÚÉèÖÃModSecurityʱ£¬ÎÒÃÇ¿ÉÒÔƾ֤×Ô¼ºµÄÐèÇó½ç˵¹æÔòÀ´± £»¤Web½Ó¿ÚÃâÊÜÖÖÖÖ¹¥»÷£¬ÈçSQL×¢Èë¡¢¿çÕ¾¾ç±¾¹¥»÷µÈ¡£

Ç¿»¯Óû§ÈÏÖ¤

Ç¿»¯Óû§ÈÏÖ¤ÊDZ £»¤Web½Ó¿ÚµÄÖ÷Òª²½·¥Ö®Ò»¡£³ýÁËʹÓÃÓû§ÃûºÍÃÜÂë¾ÙÐÐÈÏÖ¤Í⣬ÎÒÃÇ»¹¿ÉÒÔʹÓöàÒòËØÈÏÖ¤¡¢ÁîÅÆÈÏÖ¤µÈ·½·¨À´ÔöÇ¿Çå¾²ÐÔ¡£ÒÔÏÂÊÇÒ»¸öʾÀýÉèÖ㬼ÙÉèÎÒÃÇʹÓÃOTP£¨Ò»´ÎÐÔÃÜÂ룩À´¾ÙÐÐÓû§ÈÏÖ¤£º

# ×°ÖÃGoogle Authenticator
apt-get install libpam-google-authenticator -y

# ÉèÖÃGoogle Authenticator
vi /etc/pam.d/sshd

# ÆôÓÃGoogle Authenticator
vi /etc/ssh/sshd_config

# ÖØÆôSSHЧÀÍ
service ssh restart

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ÔÚÉèÖÃGoogle Authenticatorʱ£¬ÎÒÃÇ¿ÉÒÔΪÿ¸öÓû§ÌìÉúÒ»¸öÓëÆä°ó¶¨µÄOTP£¬Óû§ÐèÒªÔڵǼʱÊäÈë׼ȷµÄOTPÀ´¾ÙÐÐÉí·ÝÑéÖ¤¡£

½áÓï

± £»¤LinuxЧÀÍÆ÷ÉÏWeb½Ó¿ÚµÄÇå¾²ÊÇÈκÎϵͳÖÎÀíÔ±¶¼Ó¦¸ÃÓÅÏÈ˼Á¿µÄÊÂÏîÖ®Ò»¡£±¾ÎÄÏÈÈÝÁËһЩÏȽøµÄÊÖÒÕ£¬Èç·À»ðǽ¡¢SSL/TLS¼ÓÃÜ¡¢WebÓ¦Ó÷À»ðǽºÍÇ¿»¯Óû§ÈÏÖ¤£¬²¢ÌṩÁËһЩ´úÂëʾÀý¹©¶ÁÕ߲ο¼¡£Í¨¹ý½ÓÄÉÕâЩÊÖÒÕ£¬ÎÒÃÇ¿ÉÒÔÌá¸ßЧÀÍÆ÷µÄÇå¾²ÐÔ£¬²¢± £»¤Web½Ó¿ÚÃâÊÜÖÖÖÖ¹¥»÷¡£

ÒÔÉϾÍÊÇLinuxЧÀÍÆ÷Çå¾²£ºWeb½Ó¿Ú± £»¤µÄÏȽøÊÖÒÕ¡£µÄÏêϸÄÚÈÝ£¬¸ü¶àÇë¹Ø×¢±¾ÍøÄÚÆäËüÏà¹ØÎÄÕ£¡

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