{"id":1859,"date":"2017-02-27T19:19:52","date_gmt":"2017-02-27T11:19:52","guid":{"rendered":"http:\/\/cn.hostease.com\/xueyuan\/?p=1859"},"modified":"2024-11-15T13:27:29","modified_gmt":"2024-11-15T05:27:29","slug":"linux-%e9%98%b2%e6%9a%b4%e5%8a%9b%e7%a0%b4%e8%a7%a3%e7%94%a8%e6%88%b7%e5%af%86%e7%a0%81%e8%84%9a%e6%9c%ac-%e8%87%aa%e5%8a%a8%e6%8b%a6%e6%88%aaip","status":"publish","type":"post","link":"https:\/\/cn.hostease.com\/xueyuan\/jishu\/linux\/linux-%e9%98%b2%e6%9a%b4%e5%8a%9b%e7%a0%b4%e8%a7%a3%e7%94%a8%e6%88%b7%e5%af%86%e7%a0%81%e8%84%9a%e6%9c%ac-%e8%87%aa%e5%8a%a8%e6%8b%a6%e6%88%aaip\/","title":{"rendered":"linux \u9632\u66b4\u529b\u7834\u89e3\u7528\u6237\u5bc6\u7801\u811a\u672c \u81ea\u52a8\u62e6\u622aIP"},"content":{"rendered":"
\u521b\u5efa\u00a0PwdGuessDefense.sh \u653e\u5230 \/script\/\u4e0b\u9762, define=10 \u8fd9\u4e2a \u53ef\u4ee5\u6539 ,\u5982\u679cIP\u9519\u8bef\u767b\u5f55\u6b21\u6570\u8fbe\u5230\u8fd9\u4e2a\u503c \u5c31\u4f1a\u88ab\u6c38\u4e45\u62e6\u622a<\/div>\n
<\/div>\n
—————————————————————————————————————————–<\/div>\n
#!\/bin\/bash<\/div>\n
# Guess Password defense SHELL SCRIPT<\/div>\n
#2013-6-24<\/div>\n
cat \/var\/log\/secure|awk ‘\/Failed\/{print $(NF-3)}’|sort|uniq -c|awk ‘{print $2″=” $1;}’ >\/script\/Denyhosts.txt<\/div>\n
DEFINE=”10″<\/div>\n
for i in `cat \/script\/Denyhosts.txt`<\/div>\n
do<\/div>\n
\u00a0 \u00a0 \u00a0 \u00a0 IP=`echo $i|awk -F= ‘{print $1}’`<\/div>\n
\u00a0 \u00a0 \u00a0 \u00a0 NUM=`echo $i|awk -F= ‘{print $2}’`<\/div>\n
\u00a0 \u00a0 \u00a0 \u00a0 if [ $NUM -gt $DEFINE ]<\/div>\n
\u00a0 \u00a0 \u00a0 \u00a0 then<\/div>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 grep $IP \/etc\/hosts.deny >\/dev\/null<\/div>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 if [ $? -gt 0 ];<\/div>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 then<\/div>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 echo “sshd:$IP” >> \/etc\/hosts.deny<\/div>\n
\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 fi<\/div>\n
\u00a0 \u00a0 \u00a0 \u00a0 fi<\/div>\n
done<\/div>\n
<\/div>\n
———————————————————————————————————————————-<\/div>\n
\u8bbe\u7f6e\u5b9a\u671f\u8fd0\u884c\uff0c\u6bcf\u96945\u5206\u949f<\/div>\n
crontab -e<\/div>\n
<\/div>\n
*\/5 * * * * \/script\/PwdGuessDefense.sh<\/div>\n","protected":false},"excerpt":{"rendered":"

\u521b\u5efa\u00a0PwdGuessDefense.sh \u653e\u5230 \/script\/\u4e0b\u9762, define=10 \u8fd9\u4e2a \u53ef\u4ee5\u6539 , … \u9605\u8bfb\u66f4\u591a<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[49],"tags":[38,1472],"class_list":["post-1859","post","type-post","status-publish","format-standard","hentry","category-linux","tag-linux","tag-ip"],"aioseo_notices":[],"jetpack_featured_media_url":"","jetpack-related-posts":[],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/posts\/1859","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/comments?post=1859"}],"version-history":[{"count":1,"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/posts\/1859\/revisions"}],"predecessor-version":[{"id":1860,"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/posts\/1859\/revisions\/1860"}],"wp:attachment":[{"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/media?parent=1859"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/categories?post=1859"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/tags?post=1859"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}