4. \u670d\u52a1\u6700\u5c0f\u5316<\/h3>\n

\u5ba1\u6838\u5e76\u7981\u7528\u4e0d\u5fc5\u8981\u7684\u670d\u52a1,\u4ee5\u51cf\u5c11\u653b\u51fb\u9762:<\/p>\n

\r\n# \u5217\u51fa\u6240\u6709\u8fd0\u884c\u7684\u670d\u52a1\r\nsystemctl list-units --type=service\r\n\r\n# \u7981\u7528\u670d\u52a1\r\nsudo systemctl disable [\u670d\u52a1\u540d\u79f0]\r\nsudo systemctl stop [\u670d\u52a1\u540d\u79f0]\r\n<\/code><\/pre>\n
5. \u5b9e\u65bd\u5165\u4fb5\u68c0\u6d4b<\/h3>\n
\u90e8\u7f72\u548c\u914d\u7f6e\u5165\u4fb5\u68c0\u6d4b\u7cfb\u7edf(IDS),\u5982Snort\u6216Suricata\u3002\u4ee5\u4e0b\u662f\u57fa\u672c\u7684Snort\u8bbe\u7f6e:<\/p>\n
# \u5b89\u88c5Snort\r\nsudo apt install snort\r\n\r\n# \u7f16\u8f91\u914d\u7f6e\r\nsudo nano \/etc\/snort\/snort.conf\r\n\r\n# \u6d4b\u8bd5\u914d\u7f6e\r\nsudo snort -T -c \/etc\/snort\/snort.conf\r\n<\/code><\/pre>\n
6. \u5f3a\u5927\u7684\u5bc6\u7801\u7b56\u7565<\/h3>\n
\u4f7f\u7528PAM\u5b9e\u65bd\u5f3a\u5bc6\u7801\u7b56\u7565:<\/p>\n
\r\n# \u7f16\u8f91PAM\u914d\u7f6e\r\nsudo nano \/etc\/pam.d\/common-password\r\n\r\n# \u6dfb\u52a0\u4ee5\u4e0b\u884c\r\npassword requisite pam_pwquality.so retry=3 minlen=14 dcredit=-1 ucredit=-1 ocredit=-1 lcredit=-1\r\n<\/code><\/pre>\n
7. Sed\u547d\u4ee4\u51c0\u5316<\/h3>\n
\u4f7f\u7528sed\u65f6,\u59cb\u7ec8\u51c0\u5316\u8f93\u5165\u5e76\u4f7f\u7528-E\u6807\u5fd7\u8fdb\u884c\u6269\u5c55\u6b63\u5219\u8868\u8fbe\u5f0f:<\/p>\n
\r\n# \u66f4\u5b89\u5168\u7684sed\u7528\u6cd5\r\nsed -E 's\/^[[:space:]]+|[[:space:]]+$\/\/g' input_file\r\n<\/code><\/pre>\n
8. \u52a0\u56fa\u7684Linux\u53d1\u884c\u7248<\/h3>\n
\u8003\u8651\u5207\u6362\u5230\u5b89\u5168\u6027\u66f4\u9ad8\u7684\u53d1\u884c\u7248,\u5982CentOS,\u5b83\u4eec\u63d0\u4f9b\u66f4\u5f3a\u7684\u5f00\u7bb1\u5373\u7528\u5b89\u5168\u529f\u80fd\u3002<\/p>\n
9. \u4e25\u683c\u7684\u5907\u4efd\u5236\u5ea6<\/h3>\n
\u4f7f\u7528rsync\u7b49\u5de5\u5177\u5b9e\u65bd\u81ea\u52a8\u5907\u4efd\u7b56\u7565:<\/p>\n
# \u6bcf\u65e5\u589e\u91cf\u5907\u4efd\r\nrsync -avz --delete \/path\/to\/source user@backupserver:\/path\/to\/destination\r\n<\/code><\/pre>\n
10. \u5b89\u5168\u610f\u8bc6\u57f9\u8bad<\/h3>\n
\u5b9a\u671f\u4e3a\u60a8\u7684\u56e2\u961f\u8fdb\u884c\u5b89\u5168\u57f9\u8bad,\u6db5\u76d6\u793e\u4f1a\u5de5\u7a0b\u5b66\u3001\u9493\u9c7c\u548c\u5b89\u5168\u6d4f\u89c8\u5b9e\u8df5\u7b49\u4e3b\u9898\u3002<\/p>\n
[\/vc_column_text][\/vc_column][\/vc_row][vc_row el_class=”blog-detail-section”][vc_column][vc_column_text]<\/p>\n
\u9999\u6e2f\u670d\u52a1\u5668\u79df\u7528\u63d0\u4f9b\u5546:\u660e\u667a\u9009\u62e9<\/strong><\/h2>\n
\u9009\u62e9\u9999\u6e2f\u670d\u52a1\u5668\u79df\u7528\u63d0\u4f9b\u5546\u65f6,\u4f18\u5148\u8003\u8651\u90a3\u4e9b\u63d0\u4f9b\u4ee5\u4e0b\u670d\u52a1\u7684:<\/p>\n
\n
DDoS\u9632\u62a4<\/li>\n
\u5b9a\u671f\u5b89\u5168\u5ba1\u8ba1<\/li>\n
24\/7\u76d1\u63a7<\/li>\n
\u7b26\u5408\u56fd\u9645\u5b89\u5168\u6807\u51c6<\/li>\n<\/ul>\n
[\/vc_column_text][\/vc_column][\/vc_row][vc_row el_class=”blog-detail-section”][vc_column][vc_column_text]<\/p>\n
\u9999\u6e2f\u7279\u5b9a\u7684\u5b89\u5168\u8003\u8651<\/strong><\/h2>\n
\u8003\u8651\u5230\u9999\u6e2f\u7684\u72ec\u7279\u5730\u4f4d,\u8bf7\u8003\u8651\u4ee5\u4e0b\u989d\u5916\u7684\u5b89\u5168\u63aa\u65bd:<\/p>\n
\n
\u5b9e\u65bd\u5730\u7406\u963b\u6b62,\u9650\u5236\u6765\u81ea\u9ad8\u98ce\u9669\u5730\u533a\u7684\u8bbf\u95ee<\/li>\n
\u4f7f\u7528VPN\u8fdb\u884c\u5b89\u5168\u8fdc\u7a0b\u8bbf\u95ee,\u4ee5\u964d\u4f4e\u4e0e\u516c\u5171Wi-Fi\u7f51\u7edc\u76f8\u5173\u7684\u98ce\u9669<\/li>\n
\u53ca\u65f6\u4e86\u89e3\u9999\u6e2f\u7684\u7f51\u7edc\u5b89\u5168\u6cd5\u89c4\u5e76\u786e\u4fdd\u5408\u89c4<\/li>\n<\/ul>\n
[\/vc_column_text][\/vc_column][\/vc_row][vc_row el_class=”blog-detail-section”][vc_column][vc_column_text]<\/p>\n
\u68c0\u6d4bsedexp\u653b\u51fb<\/strong><\/h2>\n
\u8b66\u60d5\u662f\u8bc6\u522bsedexp\u653b\u51fb\u7684\u5173\u952e\u3002\u6ce8\u610f\u4ee5\u4e0b\u60c5\u51b5:<\/p>\n
\n
\u7cfb\u7edf\u65e5\u5fd7\u4e2d\u4e0d\u5bfb\u5e38\u7684sed\u4f7f\u7528<\/li>\n
\u5173\u952e\u7cfb\u7edf\u6587\u4ef6\u7684\u610f\u5916\u66f4\u6539<\/li>\n
\u5f02\u5e38\u7684\u7f51\u7edc\u6d41\u91cf\u6a21\u5f0f<\/li>\n<\/ul>\n
\u5b9e\u65bd\u65e5\u5fd7\u5206\u6790\u5de5\u5177,\u5982ELK\u5806\u6808(Elasticsearch, Logstash, Kibana)\u8fdb\u884c\u5b9e\u65f6\u76d1\u63a7:<\/p>\n
# \u5b89\u88c5ELK\u5806\u6808(Ubuntu\u793a\u4f8b)\r\nwget -qO - https:\/\/artifacts.elastic.co\/GPG-KEY-elasticsearch | sudo apt-key add -\r\nsudo apt-get install apt-transport-https\r\necho \"deb https:\/\/artifacts.elastic.co\/packages\/7.x\/apt stable main\" | sudo tee \/etc\/apt\/sources.list.d\/elastic-7.x.list\r\nsudo apt-get update && sudo apt-get install elasticsearch logstash kibana\r\n<\/code><\/pre>\n
\u653b\u51fb\u540e\u54cd\u5e94\u534f\u8bae<\/strong><\/h2>\n
\u5982\u679c\u60a8\u6000\u7591\u906d\u53d7\u4e86sedexp\u653b\u51fb:<\/p>\n
\n
\u9694\u79bb\u53d7\u5f71\u54cd\u7684\u7cfb\u7edf<\/li>\n
\u5206\u6790\u65e5\u5fd7\u4ee5\u786e\u5b9a\u653b\u51fb\u9014\u5f84<\/li>\n
\u4ece\u5e72\u51c0\u7684\u5907\u4efd\u4e2d\u6062\u590d<\/li>\n
\u4fee\u8865\u6f0f\u6d1e\u5e76\u66f4\u65b0\u6240\u6709\u7cfb\u7edf<\/li>\n
\u8fdb\u884c\u5f7b\u5e95\u7684\u4e8b\u540e\u5206\u6790<\/li>\n<\/ol>\n
[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column][vc_column_text]<\/p>\n
\u7ed3\u8bba:\u6570\u5b57\u524d\u6cbf\u7684\u8b66\u60d5<\/strong><\/h2>\n
\u5728\u4e0d\u65ad\u6f14\u53d8\u7684\u7f51\u7edc\u5b89\u5168\u73af\u5883\u4e2d,\u4fdd\u62a4\u60a8\u7684\u9999\u6e2fLinux\u670d\u52a1\u5668\u514d\u53d7sedexp\u7b49\u5a01\u80c1\u9700\u8981\u591a\u65b9\u9762\u7684\u65b9\u6cd5\u3002\u901a\u8fc7\u5b9e\u65bd\u672c\u6307\u5357\u4e2d\u6982\u8ff0\u7684\u7b56\u7565,\u60a8\u5c06\u663e\u8457\u589e\u5f3a\u670d\u52a1\u5668\u79df\u7528\u57fa\u7840\u8bbe\u65bd\u7684\u97e7\u6027\u3002\u8bf7\u8bb0\u4f4f,\u5b89\u5168\u4e0d\u662f\u4e00\u4e2a\u76ee\u7684\u5730,\u800c\u662f\u4e00\u4e2a\u6301\u7eed\u9002\u5e94\u548c\u6539\u8fdb\u7684\u65c5\u7a0b\u3002<\/p>\n
\u4fdd\u6301\u8b66\u60d5,\u4e0d\u65ad\u5b66\u4e60,\u5229\u7528\u9999\u6e2f\u670d\u52a1\u5668\u79df\u7528\u751f\u6001\u7cfb\u7edf\u7684\u72ec\u7279\u4f18\u52bf,\u540c\u65f6\u7f13\u89e3\u5176\u56fa\u6709\u98ce\u9669\u3002\u60a8\u5728Linux\u5b89\u5168\u65b9\u9762\u7684\u79ef\u6781\u6001\u5ea6\u5c06\u6210\u4e3a\u60a8\u5728\u8fd9\u4e2a\u5145\u6ee1\u6d3b\u529b\u7684\u79d1\u6280\u4e2d\u5fc3\u53d6\u5f97\u6570\u5b57\u6210\u529f\u7684\u57fa\u77f3\u3002<\/p>\n
[\/vc_column_text][\/vc_column][\/vc_row]<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"
[vc_row el_class=”blog-detail-section”][vc_column][vc_column_text] \u5728\u9999\u6e2f\u7e41\u5fd9\u7684\u6570\u5b57\u73af\u5883\u4e2d,\u670d\u52a1\u5668\u79df\u7528\u63d0\u4f9b\u5546\u4f5c\u4e3a\u65e0\u6570\u5728\u7ebf\u4e1a\u52a1\u7684\u652f\u67f1,sedexp\u653b\u51fb\u7684\u9634\u5f71\u7b3c\u7f69\u7740\u8fd9\u7247\u571f\u5730\u3002\u672c\u6307\u5357\u6df1\u5165\u63a2\u8ba8\u4e86\u4fdd\u62a4Linux\u670d\u52a1\u5668\u514d\u53d7\u8fd9\u79cd\u9690\u853d\u5a01\u80c1\u7684\u7ec6\u8282,\u91cd\u70b9\u5173\u6ce8\u9999\u6e2f\u670d\u52a1\u5668\u79df\u7528\u751f\u6001\u7cfb\u7edf\u9762\u4e34\u7684\u72ec\u7279\u6311\u6218\u3002 \u63ed\u9732sedexp:\u65e0\u58f0\u7684\u63a0\u98df\u8005 \u6700\u8fd1\u7684\u4e00\u9879\u53d1\u5c55\u9707\u60ca\u4e86\u7f51\u7edc\u5b89\u5168\u754c,\u7814\u7a76\u4eba\u5458\u53d1\u73b0\u4e86\u4e00\u79cd\u65b0\u578b\u7684sedexp\u6076\u610f\u8f6f\u4ef6\u3002\u8fd9\u4e00\u53d1\u73b0\u4ec5\u5728\u51e0\u5929\u524d\u62a5\u9053,\u51f8\u663e\u4e86\u8fd9\u79cd\u5a01\u80c1\u7684\u4e0d\u65ad\u6f14\u53d8\u3002\u65b0\u53d8\u79cd\u5c55\u793a\u4e86\u589e\u5f3a\u7684\u89c4\u907f\u6280\u672f,\u4f7f\u5176\u66f4\u96be\u88ab\u4f20\u7edf\u5b89\u5168\u63aa\u65bd\u68c0\u6d4b\u5230\u3002\u8fd9\u4e00\u53d1\u73b0\u5f3a\u8c03\u4e86\u4fdd\u6301\u8b66\u60d5\u548c\u5b9e\u65bd\u5f3a\u5927\u5b89\u5168\u534f\u8bae\u7684\u5173\u952e\u91cd\u8981\u6027,\u7279\u522b\u662f\u5bf9\u4e8e\u7ecf\u5e38\u5904\u4e8e\u65b0\u5174\u7f51\u7edc\u5a01\u80c1\u524d\u6cbf\u7684\u9999\u6e2f\u670d\u52a1\u5668\u79df\u7528\u63d0\u4f9b\u5546\u3002 sedexp,\u662f’sed’\u548c’exploit’\u7684\u5408\u6210\u8bcd,\u662f\u4e00\u79cd\u590d\u6742\u7684\u653b\u51fb\u624b\u6bb5,\u5b83\u5229\u7528Unix\u7c7b\u7cfb\u7edf\u4e2d\u65e0\u5904\u4e0d\u5728\u7684\u6d41\u7f16\u8f91\u5668(sed)\u5de5\u5177\u3002\u8fd9\u79cd\u653b\u51fb\u65b9\u6cd5\u64cd\u7eb5sed\u5f3a\u5927\u7684\u6587\u672c\u5904\u7406\u80fd\u529b\u6765\u6267\u884c\u6076\u610f\u4ee3\u7801,\u53ef\u80fd\u6388\u4e88\u653b\u51fb\u8005\u5bf9\u60a8\u670d\u52a1\u5668\u7684\u4e0d\u53d7\u9650\u5236\u7684\u8bbf\u95ee\u6743\u9650\u3002 [\/vc_column_text][\/vc_column][\/vc_row][vc_row el_class=”blog-detail-section”][vc_column][vc_column_text] \u9999\u6e2f\u7684\u670d\u52a1\u5668\u79df\u7528\u73af\u5883:\u4e00\u4e2a\u4e3b\u8981\u76ee\u6807 \u9999\u6e2f\u4f5c\u4e3a\u5168\u7403\u4e92\u8054\u7f51\u67a2\u7ebd\u7684\u6218\u7565\u5730\u4f4d,\u4f7f\u5176\u670d\u52a1\u5668\u79df\u7528\u57fa\u7840\u8bbe\u65bd\u6210\u4e3a\u7f51\u7edc\u72af\u7f6a\u5206\u5b50\u7684\u8bf1\u4eba\u76ee\u6807\u3002\u9ad8\u901f\u8fde\u63a5\u548c\u9760\u8fd1\u4e3b\u8981\u4e9a\u6d32\u5e02\u573a\u7684\u4f18\u52bf\u4f7f\u9999\u6e2f\u670d\u52a1\u5668\u79df\u7528\u5177\u6709\u5438\u5f15\u529b,\u540c\u65f6\u4e5f\u589e\u52a0\u4e86\u5176\u9762\u4e34sedexp\u7b49\u5a01\u80c1\u7684\u98ce\u9669\u3002 [\/vc_column_text][\/vc_column][\/vc_row][vc_row el_class=”blog-detail-section”][vc_column][vc_column_text] \u52a0\u56fa\u7b56\u7565:Linux\u5b89\u5168\u768410\u5927\u652f\u67f1 1. \u8b66\u60d5\u7cfb\u7edf\u66f4\u65b0 \u4fdd\u6301\u7cfb\u7edf\u6700\u65b0\u662f\u60a8\u7684\u7b2c\u4e00\u9053\u9632\u7ebf\u3002\u5b9e\u65bd\u81ea\u52a8\u66f4\u65b0\u6d41\u7a0b,\u786e\u4fdd\u60a8\u7684Linux\u53d1\u884c\u7248\u548c\u6240\u6709\u5df2\u5b89\u88c5\u7684\u8f6f\u4ef6\u5305\u4fdd\u6301\u6700\u65b0: # \u5bf9\u4e8eDebian\/Ubuntu\u7cfb\u7edf sudo apt update && sudo apt upgrade -y # \u5bf9\u4e8eCentOS\/RHEL\u7cfb\u7edf sudo yum update -y 2. \u7cbe\u7ec6\u7684\u7528\u6237\u6743\u9650 \u4e25\u683c\u6267\u884c\u6700\u5c0f\u6743\u9650\u539f\u5219\u3002\u4f7f\u7528SELinux\u6216AppArmor\u521b\u5efa\u7cbe\u7ec6\u7684\u8bbf\u95ee\u63a7\u5236: # \u542f\u7528SELinux sudo setenforce 1 # \u914d\u7f6eAppArmor\u914d\u7f6e\u6587\u4ef6 sudo aa-enforce \/etc\/apparmor.d\/usr.sbin.apache2 3. \u9632\u706b\u5899\u52a0\u56fa \u914d\u7f6eiptables\u6216nftables\u4ee5\u521b\u5efa\u5f3a\u5927\u7684\u9632\u706b\u5899\u3002\u4ee5\u4e0b\u662f\u57fa\u672c\u7684iptables\u914d\u7f6e: # \u5141\u8bb8\u5df2\u5efa\u7acb\u7684\u8fde\u63a5 sudo iptables -A INPUT -m […]<\/p>\n
Read More…<\/a><\/p>\n","protected":false},"author":3,"featured_media":15017,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[62],"tags":[3211,3210,2597,1882],"class_list":["post-15070","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-hong-kong-dedicated-server-sc","tag-sedexp-attack-sc","tag-linux-security-sc","tag-server-protection-sc","tag-hong-kong-hosting-sc"],"acf":[],"yoast_head":"\n