{"id":3266,"date":"2025-09-07T15:29:57","date_gmt":"2025-09-07T07:29:57","guid":{"rendered":"https:\/\/jir.idv.tw\/wordpress\/?p=3266"},"modified":"2025-09-14T19:36:58","modified_gmt":"2025-09-14T11:36:58","slug":"linux-%e5%a6%82%e4%bd%95%e6%8c%87%e4%bb%a4%e8%99%95%e7%90%86%e5%88%97%e8%a1%a8%e5%b7%b2%e7%9f%a5%e8%a2%abfail2ban%e5%b0%81%e9%8e%96%e7%9a%84%e6%83%a1%e6%84%8fip","status":"publish","type":"post","link":"https:\/\/jir.idv.tw\/wordpress\/?p=3266","title":{"rendered":"[linux] \u5982\u4f55\u6307\u4ee4\u8655\u7406\u5217\u8868\u5df2\u77e5\u88abfail2ban\u5c01\u9396\u7684\u60e1\u610fIP"},"content":{"rendered":"<p>LAST UPDATED: 2025.09.14<\/p>\n<p>\u56e0\u70bawebmin\u662f\u7db2\u9801\u7248\uff0c\u800c\u4e14\u529f\u80fd\u5f88\u591a\u3002<br \/>\n\u6709\u6642\u5019\u6211\u53ea\u662f\u8981\u770bfail2ban\u5230\u5e95\u6709\u5de5\u4f5c\u90a3\u4e9b\u8a2d\u5b9a\uff0c\u4ee5\u53ca\u5c01\u9396\u90a3\u4e9b\u6578\u91cf\u3002<br \/>\n\u539f\u59cb\u5957\u4ef6\u6307\u4ee4\u7684\u65b9\u5f0f\u5f88\u4e0d\u597d\u7528\uff0c\u8981\u67e5\u5df2\u958b\u555f\u7684\u670d\u52d9\u9805\u76ee\u548c\u53bb\u770b\u500b\u5225\u670d\u52d9\u5c01\u9396\u8ab0\u3002<\/p>\n<p>\u56e0\u70ba\u9019\u5e7e\u5929\u5728\u641eGDC\u7684\u865b\u64ec\u6a5f\uff0c\u90a3\u4eca\u5929\u60f3\u5230\u554fAI\u5927\u6982\u662f\u9b54\u6cd5\u6307\u4ee4\u7528\u5c0d\u4e86\u3002<br \/>\n\u554f\u5230\u6211\u60f3\u8981\u7684\u65b9\u5f0f\u5448\u73fe\uff0c\u9806\u4fbf\u8a18\u9304\u4e0b\u4f86\u3002<br \/>\n\u8981\u5b89\u88ddjp\u5957\u4ef6\uff1a<br \/>\n<code>sudo apt-get install jq<\/code><\/p>\n<p>\u597d\u4e86\u4ee5\u5f8c\u5c31\u80fd\u9019\u6a23\u4e0b\u6307\u4ee4\u4f86\u8f14\u52a9\u986f\u793a\u3002<br \/>\n<code>## \u9019\u6a23\u7684\u8a9e\u6cd5\u662f\u5168\u90e8\u670d\u52d9\u90fd\u5217\u51fa\uff1a<br \/>\nsudo fail2ban-client banned | tr \"'\" '\"' | jq '.[] | to_entries[] | {service: .key, count: (.value | length), ips: .value}'<br \/>\n## \u9019\u6a23\u7684\u8a9e\u6cd5\u662f\u53ea\u5217\u51fa\u6709\u5c01\u9396IP\u7684\u670d\u52d9\u6e05\u55ae\uff1a<br \/>\nsudo fail2ban-client banned | tr \"'\" '\"' | jq '.[] | to_entries[] | {service: .key, count: (.value | length), ips: .value} | select(.count >= 1)'<\/code><\/p>\n<p>\u90a3\u5982\u679c\u60f3\u8981\u7528crontab\u6216\u662f\u4e7e\u8106\u653e\u5728cron.daily\u7684.sh\u6a94\u6848\uff1a<br \/>\n<code>sudo touch fail2ban_report.sh<br \/>\nsudo chmod +x fail2ban_report.sh<br \/>\nsudo nano fail2ban_report.sh<\/code><\/p>\n<p>\u6a94\u6848\u7684\u5167\u5bb9\u53ef\u4ee5\u9019\u6a23\u7de8\u8f2f\uff1a<br \/>\n<code>#!\/bin\/bash<br \/>\n# \u8a2d\u5b9a\u6536\u4ef6\u4eba\u4fe1\u7bb1<br \/>\nRECIPIENT_EMAIL=\"your_email@example.com\"<br \/>\n# \u53d6\u5f97\u7576\u524d\u65e5\u671f\uff0c\u683c\u5f0f\u70ba YYYY-MM-DD<br \/>\nTODAY_DATE=$(date \"+%Y-%m-%d\")<br \/>\n# \u8a2d\u5b9a\u90f5\u4ef6\u4e3b\u65e8\uff0c\u52a0\u5165\u7576\u524d\u65e5\u671f<br \/>\nEMAIL_SUBJECT=\"[${TODAY_DATE}] Fail2ban IP \u5df2\u5c01\u9396\u901a\u77e5\"<br \/>\n# \u8a2d\u5b9a\u90f5\u4ef6\u5167\u6587<br \/>\nEMAIL_BODY=\"\u5075\u6e2c\u5230\u4f3a\u670d\u5668\u6709\u65b0\u7684 IP \u5c01\u9396\u72c0\u6cc1\uff1a\\n\\n\"<br \/>\nHAS_BANNED_IP=false<\/p>\n<p># \u7372\u53d6 Fail2ban \u5c01\u9396\u72c0\u614b\uff0c\u4e26\u5c07\u8f38\u51fa\u8f49\u63db\u70ba JSON<br \/>\nJSON_OUTPUT=$(sudo fail2ban-client banned | tr \"'\" '\"' | jq -c '.[] | to_entries[] | {service: .key, count: (.value | length), ips: .value}')<\/p>\n<p># \u9010\u4e00\u8655\u7406\u6bcf\u500b\u670d\u52d9\u7684 JSON \u8f38\u51fa<br \/>\nwhile read -r line; do<br \/>\n  # \u4f7f\u7528 jq \u7be9\u9078\u51fa count > 0 \u7684\u670d\u52d9<br \/>\n  if echo \"$line\" | jq -e '.count > 0' >\/dev\/null; then<br \/>\n    # \u5982\u679c\u6709\u5c01\u9396\uff0c\u8a2d\u5b9a\u6a19\u8a18\u70ba true<br \/>\n    HAS_BANNED_IP=true<\/p>\n<p>    # \u63d0\u53d6\u670d\u52d9\u540d\u7a31\u3001\u5c01\u9396\u6578\u91cf\u548c IP \u6e05\u55ae<br \/>\n    SERVICE=$(echo \"$line\" | jq -r '.service')<br \/>\n    COUNT=$(echo \"$line\" | jq -r '.count')<br \/>\n    IPS=$(echo \"$line\" | jq -r '.ips | .[]')<\/p>\n<p>    # \u5efa\u7acb\u8a72\u670d\u52d9\u7684\u5831\u544a\u5167\u5bb9<br \/>\n    EMAIL_BODY+=\"\u670d\u52d9\uff1a$SERVICE\\n\"<br \/>\n    EMAIL_BODY+=\"\u5c01\u9396\u6578\u91cf\uff1a$COUNT\\n\"<br \/>\n    EMAIL_BODY+=\"\u88ab\u5c01\u9396\u7684 IP\uff1a\\n\"<br \/>\n    for ip in $IPS; do<br \/>\n      EMAIL_BODY+=\"- $ip\\n\"<br \/>\n    done<br \/>\n    EMAIL_BODY+=\"\\n\"<br \/>\n  fi<br \/>\ndone <<< \"$JSON_OUTPUT\"\n\n# \u5982\u679c\u6709\u4efb\u4f55\u670d\u52d9\u6709 IP \u88ab\u5c01\u9396\uff0c\u5247\u767c\u9001\u90f5\u4ef6\nif [ \"$HAS_BANNED_IP\" = true ]; then\n  # \u6aa2\u67e5\u7cfb\u7d71\u662f\u5426\u5b89\u88dd mail \u547d\u4ee4\uff0c\u5982\u679c\u6c92\u6709\u5247\u4f7f\u7528 sendmail\n  if command -v mail &#038;> \/dev\/null; then<br \/>\n    echo -e \"$EMAIL_BODY\" | mail -s \"$EMAIL_SUBJECT\" \"$RECIPIENT_EMAIL\"<br \/>\n  elif command -v sendmail &> \/dev\/null; then<br \/>\n    (<br \/>\n        echo \"Subject: $EMAIL_SUBJECT\"<br \/>\n        echo \"\"<br \/>\n        echo -e \"$EMAIL_BODY\"<br \/>\n    ) | sendmail \"$RECIPIENT_EMAIL\"<br \/>\n  else<br \/>\n    echo \"\u932f\u8aa4: \u7cfb\u7d71\u6c92\u6709\u5b89\u88dd mail \u6216 sendmail\uff0c\u7121\u6cd5\u767c\u9001\u90f5\u4ef6\u3002\"<br \/>\n  fi<br \/>\nfi<\/code><\/p>\n<p>\u4fee\u6539\u5b8c\u6210\u5f8c\uff0c\u57f7\u884cfail2ban_report.sh\uff0c\u770b\u6709\u6c92\u6709\u6536\u5230\u5831\u544a\u7684\u4fe1\u4ef6\u3002<br \/>\n\u6c92\u554f\u984c\u5c31\u770b\u8981\u7de8\u8f2f\u5728crontab\u547c\u53eb\uff0c\u6216\u662f\u653e\u5230\/etc\/cron.daily\/\u76ee\u9304\u4e0b\u4f7f\u7528\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>LAST UPDATED: 2025.09.14 \u56e0\u70bawebmin\u662f\u7db2\u9801\u7248\uff0c\u800c\u4e14\u529f\u80fd\u5f88\u591a\u3002 \u6709\u6642\u5019\u6211\u53ea\u662f\u8981\u770bfail2ban\u5230\u5e95\u6709\u5de5\u4f5c\u90a3\u4e9b\u8a2d\u5b9a\uff0c\u4ee5\u53ca\u5c01\u9396\u90a3\u4e9b\u6578\u91cf\u3002 \u539f\u59cb\u5957\u4ef6\u6307\u4ee4\u7684\u65b9\u5f0f\u5f88\u4e0d\u597d\u7528\uff0c\u8981\u67e5\u5df2\u958b\u555f\u7684\u670d\u52d9\u9805\u76ee\u548c\u53bb\u770b\u500b\u5225\u670d\u52d9\u5c01\u9396\u8ab0\u3002 \u56e0\u70ba\u9019\u5e7e\u5929\u5728\u641eGDC\u7684\u865b\u64ec\u6a5f\uff0c\u90a3\u4eca\u5929\u60f3\u5230\u554fAI\u5927\u6982\u662f\u9b54\u6cd5\u6307\u4ee4\u7528\u5c0d\u4e86\u3002 \u554f\u5230\u6211\u60f3\u8981\u7684\u65b9\u5f0f\u5448\u73fe\uff0c\u9806\u4fbf\u8a18\u9304\u4e0b\u4f86\u3002 \u8981\u5b89\u88ddjp\u5957\u4ef6\uff1a sudo apt-get install jq \u597d\u4e86\u4ee5\u5f8c\u5c31\u80fd\u9019\u6a23\u4e0b\u6307\u4ee4\u4f86\u8f14\u52a9\u986f\u793a\u3002 ## \u9019\u6a23\u7684\u8a9e\u6cd5\u662f\u5168\u90e8\u670d\u52d9\u90fd\u5217\u51fa\uff1a sudo fail2ban-client banned | tr &#8220;&#8216;&#8221; &#8216;&#8221;&#8216; | jq &#8216;.[] | to_entries[] | {service: .key, count: (.value | length), ips: .value}&#8217; ## \u9019\u6a23\u7684\u8a9e\u6cd5\u662f\u53ea\u5217\u51fa\u6709\u5c01\u9396IP\u7684\u670d\u52d9\u6e05\u55ae\uff1a sudo fail2ban-client banned | tr &#8220;&#8216;&#8221; &#8216;&#8221;&#8216; | jq &#8216;.[] | to_entries[] | {service: .key, count: (.value | length), i&#8230; <a href=\"https:\/\/jir.idv.tw\/wordpress\/?p=3266\" class=\"readmore\">Read more (\u5b8c\u6574\u6587\u7ae0\u5167\u5bb9)<span class=\"screen-reader-text\">[linux] \u5982\u4f55\u6307\u4ee4\u8655\u7406\u5217\u8868\u5df2\u77e5\u88abfail2ban\u5c01\u9396\u7684\u60e1\u610fIP<\/span><span class=\"fa fa-angle-double-right\" aria-hidden=\"true\"><\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[4],"tags":[],"class_list":["post-3266","post","type-post","status-publish","format-standard","hentry","category-4","content-layout-excerpt-thumb"],"jetpack_featured_media_url":"","jetpack-related-posts":[],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/jir.idv.tw\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/3266","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/jir.idv.tw\/wordpress\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/jir.idv.tw\/wordpress\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/jir.idv.tw\/wordpress\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/jir.idv.tw\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=3266"}],"version-history":[{"count":3,"href":"https:\/\/jir.idv.tw\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/3266\/revisions"}],"predecessor-version":[{"id":3274,"href":"https:\/\/jir.idv.tw\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/3266\/revisions\/3274"}],"wp:attachment":[{"href":"https:\/\/jir.idv.tw\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=3266"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/jir.idv.tw\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=3266"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/jir.idv.tw\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=3266"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}