{"id":856,"date":"2016-06-10T02:15:51","date_gmt":"2016-06-09T18:15:51","guid":{"rendered":"http:\/\/cn.hostease.com\/xueyuan\/?p=856"},"modified":"2016-06-10T02:15:51","modified_gmt":"2016-06-09T18:15:51","slug":"linux%e4%b8%8b%e6%a3%80%e6%b5%8bvps%e6%9a%b4%e5%8a%9b%e7%a0%b4%e8%a7%a3%e6%94%bb%e5%87%bb%e4%b8%8e%e9%98%b2%e6%8a%a4","status":"publish","type":"post","link":"https:\/\/cn.hostease.com\/xueyuan\/jishu\/linux\/linux%e4%b8%8b%e6%a3%80%e6%b5%8bvps%e6%9a%b4%e5%8a%9b%e7%a0%b4%e8%a7%a3%e6%94%bb%e5%87%bb%e4%b8%8e%e9%98%b2%e6%8a%a4\/","title":{"rendered":"Linux\u4e0b\u68c0\u6d4bVPS\u66b4\u529b\u7834\u89e3\u653b\u51fb\u4e0e\u9632\u62a4"},"content":{"rendered":"

\u4e00\u3001SSH\u66b4\u529b\u7834\u89e3\u68c0\u6d4b\u65b9\u6cd5<\/h2>\n

\u5982\u679c\u4f60CPU\/\u5185\u5b58\u5f02\u5e38\u7206\u8868\uff0c\u8fde\u63a5\u901f\u5ea6\u6781\u6162\uff0c\u6709\u5f02\u5e38\u8fdb\u7a0b\u7b49\u60c5\u51b5\uff0c\u6709\u53ef\u80fd\u4f60\u7684VPS\u88ab\u4eba\u626b\u63cf\u7834\u89e3\u6216\u8005\u5df2\u7ecf\u6ca6\u9677\u3002\u3002
\n\u53ef\u4ee5\u7528\u4e0b\u9762\u65b9\u6cd5\u68c0\u6d4b\u4e0b\u591a\u5c11\u4eba\u5728\u201c\u76ef\u7740\u201d\u4f60\u7684VPS:<\/p>\n

# cat \/var\/log\/secure | awk ‘\/Failed\/{print $(NF-3)}’ | sort | uniq -c | awk ‘{print $2″ = “$1;}’<\/p>\n

\u901a\u8fc7\u4e0a\u9762\u7684\u547d\u4ee4\u53ef\u4ee5\u67e5\u770b\u6709\u54ea\u4e9bIP\u5c1d\u8bd5\u8fc7\u8fde\u63a5\u548c\u7834\u89e3\u6b21\u6570\uff0c\u5982\u4e0b\u6240\u793a\uff1a<\/p>\n

47.88.101.47 = 6<\/p>\n

51.254.240.50 = 2<\/p>\n

58.218.204.107 = 42<\/p>\n

58.218.204.211 = 9<\/p>\n

…….<\/p>\n

\u4e8c\u3001DenyHosts\u5b89\u88c5\u4e0e\u914d\u7f6e\u6f14\u793a<\/p>\n

<1>\u4e0b\u8f7dDenyHosts<\/p>\n

# wget https:\/\/soft.vpser.net\/security\/denyhosts\/DenyHosts-2.6.tar.gz<\/p>\n

# tar -xzf DenyHosts-2.6.tar.gz<\/p>\n

# cd DenyHosts-2.6<\/p>\n

<2>\u5b89\u88c5\u3001\u914d\u7f6e\u3001\u542f\u52a8<\/p>\n

\u5b89\u88c5\u524d\u5efa\u8bae\u6267\u884c<\/p>\n

# echo “” > \/var\/log\/secure && service rsyslog restart<\/p>\n

\u6e05\u7a7a\u4ee5\u524d\u7684\u65e5\u5fd7\u5e76\u91cd\u542frsyslog.<\/p>\n

 <\/p>\n

# python setup.py install<\/p>\n

\u56e0\u4e3aDenyHosts\u662f\u57fa\u4e8epython\u7684\uff0c\u6240\u4ee5\u8981\u5df2\u5b89\u88c5python\uff0c\u5927\u90e8\u5206Linux\u53d1\u884c\u7248\u4e00\u822c\u90fd\u6709\u3002\u9ed8\u8ba4\u662f\u5b89\u88c5\u5230\/usr\/share\/denyhosts\/\u76ee\u5f55\u7684,\u8fdb\u5165\u76f8\u5e94\u7684\u76ee\u5f55\u4fee\u6539\u914d\u7f6e\u6587\u4ef6<\/p>\n

 <\/p>\n

# cd \/usr\/share\/denyhosts\/<\/p>\n

# cp \u00a0denyhosts.cfg-dist denyhosts.cfg<\/p>\n

# cp\u00a0\u00a0daemon-control-dist daemon-control<\/p>\n

\u9ed8\u8ba4\u7684\u8bbe\u7f6e\u5df2\u7ecf\u53ef\u4ee5\u9002\u5408centos\u7cfb\u7edf\u73af\u5883\uff0c\u4f60\u4eec\u53ef\u4ee5\u4f7f\u7528vi\u547d\u4ee4\u67e5\u770b\u4e00\u4e0bdenyhosts.cfg\u548cdaemon-control\uff0c\u91cc\u9762\u6709\u8be6\u7ec6\u7684\u89e3\u91ca<\/p>\n

\u63a5\u4e0b\u6765\u7528\u547d\u4ee4\u542f\u52a8denyhosts.<\/p>\n

# chown root daemon-control<\/p>\n

# chmod 700 daemon-control<\/p>\n

# .\/daemon-control start<\/p>\n

 <\/p>\n

\u5982\u679c\u8981\u4f7fDenyHosts\u81ea\u52a8\u542f\u52a8\u8fd8\u9700\u505a\u5982\u4e0b\u8bbe\u7f6e\uff1a<\/p>\n

# ln -sf \/usr\/share\/denyhosts\/daemon-control \/etc\/init.d\/denyhosts<\/p>\n

# chkconfig \u00a0–add denyhosts<\/p>\n

# chkconfig –level 2345 denyhosts on<\/p>\n

\u6216\u8005\u6267\u884c\u4e0b\u9762\u7684\u547d\u4ee4\u52a0\u5165\u5f00\u673a\u542f\u52a8\uff0c\u5c06\u4f1a\u4fee\u6539\/etc\/rc.local\u6587\u4ef6\uff1a<\/p>\n

echo\u00a0“\/usr\/share\/denyhosts\/daemon-control\u00a0start”\u00a0>>\u00a0\/etc\/rc.local<\/p>\n

 <\/p>\n

\u4e09\u3001DenyHosts\u914d\u7f6e\u6587\u4ef6\/usr\/share\/denyhosts\/denyhosts.cfg\u8bf4\u660e\uff1a<\/p>\n

SECURE_LOG\u00a0=\u00a0\/var\/log\/secure<\/p>\n

#sshd\u65e5\u5fd7\u6587\u4ef6\uff0c\u5b83\u662f\u6839\u636e\u8fd9\u4e2a\u6587\u4ef6\u6765\u5224\u65ad\u7684\uff0c\u4e0d\u540c\u7684\u64cd\u4f5c\u7cfb\u7edf\uff0c\u6587\u4ef6\u540d\u7a0d\u6709\u4e0d\u540c\u3002<\/p>\n

 <\/p>\n

HOSTS_DENY\u00a0=\u00a0\/etc\/hosts.deny<\/p>\n

#\u63a7\u5236\u7528\u6237\u767b\u9646\u7684\u6587\u4ef6<\/p>\n

 <\/p>\n

PURGE_DENY\u00a0=\u00a05m<\/p>\n

DAEMON_PURGE\u00a0=\u00a05m<\/p>\n

#\u8fc7\u591a\u4e45\u540e\u6e05\u9664\u5df2\u7ecf\u7981\u6b62\u7684IP\uff0c\u59825m\uff085\u5206\u949f\uff09\u30015h\uff085\u5c0f\u65f6\uff09\u30015d\uff085\u5929\uff09\u30015w\uff085\u5468\uff09\u30011y\uff08\u4e00\u5e74\uff09<\/p>\n

 <\/p>\n

BLOCK_SERVICE\u00a0=\u00a0sshd<\/p>\n

#\u7981\u6b62\u7684\u670d\u52a1\u540d\uff0c\u53ef\u4ee5\u53ea\u9650\u5236\u4e0d\u5141\u8bb8\u8bbf\u95eessh\u670d\u52a1\uff0c\u4e5f\u53ef\u4ee5\u9009\u62e9ALL<\/p>\n

 <\/p>\n

DENY_THRESHOLD_INVALID\u00a0=\u00a05<\/p>\n

#\u5141\u8bb8\u65e0\u6548\u7528\u6237\u5931\u8d25\u7684\u6b21\u6570<\/p>\n

 <\/p>\n

DENY_THRESHOLD_VALID\u00a0=\u00a010<\/p>\n

#\u5141\u8bb8\u666e\u901a\u7528\u6237\u767b\u9646\u5931\u8d25\u7684\u6b21\u6570<\/p>\n

 <\/p>\n

DENY_THRESHOLD_ROOT\u00a0=\u00a05<\/p>\n

#\u5141\u8bb8root\u767b\u9646\u5931\u8d25\u7684\u6b21\u6570<\/p>\n

 <\/p>\n

HOSTNAME_LOOKUP=NO<\/p>\n

#\u662f\u5426\u505a\u57df\u540d\u53cd\u89e3<\/p>\n

DAEMON_LOG\u00a0=\u00a0\/var\/log\/denyhosts<\/p>\n

 <\/p>\n

\u56db\u3001\u4e3a\u9632\u6b62\u81ea\u5df1\u7684IP\u88ab\u5c4f\u853d\uff0c\u53ef\u4ee5\uff1a<\/p>\n

echo \u201c\u4f60\u7684IP\u201d >> \/usr\/share\/denyhosts\/allowed-hosts \u5c06\u4f60\u7684IP\u52a0\u5165\u767d\u540d\u5355\uff0c\u518d\u91cd\u542fDenyHosts\uff1a\/etc\/init.d\/denyhosts<\/p>\n

\u5982\u679c\u5df2\u7ecf\u88ab\u5c01\uff0c\u9700\u8981\u5148\u6309\u4e0b\u9762\u7684\u547d\u4ee4\u5220\u9664\u88ab\u5c01IP\u540e\u518d\u52a0\u767d\u540d\u5355\u3002<\/p>\n

\u5982\u6709IP\u88ab\u8bef\u5c01\uff0c\u53ef\u4ee5\u6267\u884c\u4e0b\u9762\u7684\u547d\u4ee4\u89e3\u5c01\uff1a<\/p>\n

wget https:\/\/soft.vpser.net\/security\/denyhosts\/denyhosts_removeip.sh && bash denyhost_removeip.sh \u8981\u89e3\u5c01\u7684IP<\/p>\n

 <\/p>\n

\u4e94\u3001\u67e5\u770b\u653b\u51fbip \u8bb0\u5f55<\/p>\n

#\u00a0cat\u00a0\/etc\/hosts.deny<\/p>\n","protected":false},"excerpt":{"rendered":"

\u4e00\u3001SSH\u66b4\u529b\u7834\u89e3\u68c0\u6d4b\u65b9\u6cd5 \u5982\u679c\u4f60CPU\/\u5185\u5b58\u5f02\u5e38\u7206\u8868\uff0c\u8fde\u63a5\u901f\u5ea6\u6781\u6162\uff0c\u6709\u5f02\u5e38\u8fdb\u7a0b\u7b49\u60c5\u51b5\uff0c\u6709\u53ef\u80fd\u4f60\u7684VPS\u88ab\u4eba\u626b … \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":[297,38,296],"class_list":["post-856","post","type-post","status-publish","format-standard","hentry","category-linux","tag-denyhosts","tag-linux","tag-vps"],"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\/856","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=856"}],"version-history":[{"count":1,"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/posts\/856\/revisions"}],"predecessor-version":[{"id":857,"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/posts\/856\/revisions\/857"}],"wp:attachment":[{"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/media?parent=856"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/categories?post=856"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/tags?post=856"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}