{"id":541,"date":"2015-12-31T21:30:10","date_gmt":"2015-12-31T13:30:10","guid":{"rendered":"http:\/\/www.kiccleaf.com\/?p=541"},"modified":"2020-08-27T15:42:33","modified_gmt":"2020-08-27T07:42:33","slug":"%e7%9c%8b%e7%9c%8b%e8%b0%81%e4%b8%80%e7%9b%b4%e5%9c%a8%e7%8c%9c%e4%bd%a0%e7%9a%84linux%e7%b3%bb%e7%bb%9f%e5%af%86%e7%a0%81","status":"publish","type":"post","link":"http:\/\/www.kiccleaf.com\/?p=541","title":{"rendered":"\u770b\u770b\u8c01\u4e00\u76f4\u5728\u731c\u4f60\u7684Linux\u7cfb\u7edf\u5bc6\u7801"},"content":{"rendered":"<p>\u9996\u5148\u627e\u5230\/var\/log\/btmp \u8fd9\u4e0a\u6587\u4ef6\u770b\u770b\u662f\u5426\u6bd4\u8f83\u5927\u8fd9\u91cc\u8bb0\u5f55\u4e86\u5f88\u591a\u767b\u5f55\u9519\u8bef\u7684\u4fe1\u606f\uff0c\u90a3\u4e48\u7528\u4e00\u53e5\u8bdd\u6765\u5217\u51fa\u5230\u5e95\u662f\u54ea\u4e2aIP\u7ecf\u5e38\u5728\u731c\u4f60\u7cfb\u7edf\u7684\u5bc6\u7801\u5427\uff01<\/p>\n<p>\u67e5\u770b\u6076\u610fip\u8bd5\u56fe\u767b\u5f55\u6b21\u6570\uff1a<\/p>\n<pre class=\"brush: bash; title: ; notranslate\" title=\"\">\r\nlastb | awk '{ print $3}' | sort | uniq -c | sort -n\r\n<\/pre>\n<p>Linux\u53ef\u4ee5\u5229\u7528iptables \u9632\u706b\u5899\u628a\u5b83\u5c4f\u853d\u6389<\/p>\n<pre class=\"brush: bash; title: ; notranslate\" title=\"\">\r\n#\u5c01IP\u7684\u547d\u4ee4\r\niptables -I INPUT -s *.*.*.* -j DROP\r\n#\u4fdd\u5b58\u4e0a\u8ff0\u89c4\u5219\r\nservice iptables save\r\n<\/pre>\n<p>\u53e6\u5916\u5efa\u8bae\u8fd8\u662f\u628assh\u768422\u7aef\u53e3\u6539\u6210\u5176\u4ed6\u7aef\u53e3\u5427\uff01<\/p>\n<p>\u6536\u96c6\u4e86\u4e00\u4e9blog\u4e0b\u6587\u4ef6\u7684\u89e3\u91ca<\/p>\n<p>\u4ee5\u4e0b\u4ecb\u7ecd\u7684\u662f20\u4e2a\u4f4d\u4e8e\/var\/log\/ \u76ee\u5f55\u4e4b\u4e0b\u7684\u65e5\u5fd7\u6587\u4ef6\u3002\u5176\u4e2d\u4e00\u4e9b\u53ea\u6709\u7279\u5b9a\u7248\u672c\u91c7\u7528\uff0c\u5982dpkg.log\u53ea\u80fd\u5728\u57fa\u4e8eDebian\u7684\u7cfb\u7edf\u4e2d\u770b\u5230\u3002<\/p>\n<p>    \/var\/log\/messages \u2014 \u5305\u62ec\u6574\u4f53\u7cfb\u7edf\u4fe1\u606f\uff0c\u5176\u4e2d\u4e5f\u5305\u542b\u7cfb\u7edf\u542f\u52a8\u671f\u95f4\u7684\u65e5\u5fd7\u3002\u6b64\u5916\uff0cmail\uff0ccron\uff0cdaemon\uff0ckern\u548cauth\u7b49\u5185\u5bb9\u4e5f\u8bb0\u5f55\u5728var\/log\/messages\u65e5\u5fd7\u4e2d\u3002<br \/>\n    \/var\/log\/dmesg \u2014 \u5305\u542b\u5185\u6838\u7f13\u51b2\u4fe1\u606f\uff08kernel ring buffer\uff09\u3002\u5728\u7cfb\u7edf\u542f\u52a8\u65f6\uff0c\u4f1a\u5728\u5c4f\u5e55\u4e0a\u663e\u793a\u8bb8\u591a\u4e0e\u786c\u4ef6\u6709\u5173\u7684\u4fe1\u606f\u3002\u53ef\u4ee5\u7528dmesg\u67e5\u770b\u5b83\u4eec\u3002<br \/>\n    \/var\/log\/auth.log \u2014 \u5305\u542b\u7cfb\u7edf\u6388\u6743\u4fe1\u606f\uff0c\u5305\u62ec\u7528\u6237\u767b\u5f55\u548c\u4f7f\u7528\u7684\u6743\u9650\u673a\u5236\u7b49\u3002<br \/>\n    \/var\/log\/boot.log \u2014 \u5305\u542b\u7cfb\u7edf\u542f\u52a8\u65f6\u7684\u65e5\u5fd7\u3002<br \/>\n    \/var\/log\/daemon.log \u2014 \u5305\u542b\u5404\u79cd\u7cfb\u7edf\u540e\u53f0\u5b88\u62a4\u8fdb\u7a0b\u65e5\u5fd7\u4fe1\u606f\u3002<br \/>\n    \/var\/log\/dpkg.log \u2013 \u5305\u62ec\u5b89\u88c5\u6216dpkg\u547d\u4ee4\u6e05\u9664\u8f6f\u4ef6\u5305\u7684\u65e5\u5fd7\u3002<br \/>\n    \/var\/log\/kern.log \u2013 \u5305\u542b\u5185\u6838\u4ea7\u751f\u7684\u65e5\u5fd7\uff0c\u6709\u52a9\u4e8e\u5728\u5b9a\u5236\u5185\u6838\u65f6\u89e3\u51b3\u95ee\u9898\u3002<br \/>\n    \/var\/log\/lastlog \u2014 \u8bb0\u5f55\u6240\u6709\u7528\u6237\u7684\u6700\u8fd1\u4fe1\u606f\u3002\u8fd9\u4e0d\u662f\u4e00\u4e2aASCII\u6587\u4ef6\uff0c\u56e0\u6b64\u9700\u8981\u7528lastlog\u547d\u4ee4\u67e5\u770b\u5185\u5bb9\u3002<br \/>\n    \/var\/log\/maillog \/var\/log\/mail.log \u2014 \u5305\u542b\u6765\u7740\u7cfb\u7edf\u8fd0\u884c\u7535\u5b50\u90ae\u4ef6\u670d\u52a1\u5668\u7684\u65e5\u5fd7\u4fe1\u606f\u3002\u4f8b\u5982\uff0csendmail\u65e5\u5fd7\u4fe1\u606f\u5c31\u5168\u90e8\u9001\u5230\u8fd9\u4e2a\u6587\u4ef6\u4e2d\u3002<br \/>\n    \/var\/log\/user.log \u2014 \u8bb0\u5f55\u6240\u6709\u7b49\u7ea7\u7528\u6237\u4fe1\u606f\u7684\u65e5\u5fd7\u3002<br \/>\n    \/var\/log\/Xorg.x.log \u2014 \u6765\u81eaX\u7684\u65e5\u5fd7\u4fe1\u606f\u3002<br \/>\n    \/var\/log\/alternatives.log \u2013 \u66f4\u65b0\u66ff\u4ee3\u4fe1\u606f\u90fd\u8bb0\u5f55\u5728\u8fd9\u4e2a\u6587\u4ef6\u4e2d\u3002<br \/>\n    \/var\/log\/btmp \u2013 \u8bb0\u5f55\u6240\u6709\u5931\u8d25\u767b\u5f55\u4fe1\u606f\u3002\u4f7f\u7528last\u547d\u4ee4\u53ef\u4ee5\u67e5\u770bbtmp\u6587\u4ef6\u3002\u4f8b\u5982\uff0c\u201dlast -f \/var\/log\/btmp | more\u201c\u3002<br \/>\n    \/var\/log\/cups \u2014 \u6d89\u53ca\u6240\u6709\u6253\u5370\u4fe1\u606f\u7684\u65e5\u5fd7\u3002<br \/>\n    \/var\/log\/anaconda.log \u2014 \u5728\u5b89\u88c5Linux\u65f6\uff0c\u6240\u6709\u5b89\u88c5\u4fe1\u606f\u90fd\u50a8\u5b58\u5728\u8fd9\u4e2a\u6587\u4ef6\u4e2d\u3002<br \/>\n    \/var\/log\/yum.log \u2014 \u5305\u542b\u4f7f\u7528yum\u5b89\u88c5\u7684\u8f6f\u4ef6\u5305\u4fe1\u606f\u3002<br \/>\n    \/var\/log\/cron \u2014 \u6bcf\u5f53cron\u8fdb\u7a0b\u5f00\u59cb\u4e00\u4e2a\u5de5\u4f5c\u65f6\uff0c\u5c31\u4f1a\u5c06\u76f8\u5173\u4fe1\u606f\u8bb0\u5f55\u5728\u8fd9\u4e2a\u6587\u4ef6\u4e2d\u3002<br \/>\n    \/var\/log\/secure \u2014 \u5305\u542b\u9a8c\u8bc1\u548c\u6388\u6743\u65b9\u9762\u4fe1\u606f\u3002\u4f8b\u5982\uff0csshd\u4f1a\u5c06\u6240\u6709\u4fe1\u606f\u8bb0\u5f55\uff08\u5176\u4e2d\u5305\u62ec\u5931\u8d25\u767b\u5f55\uff09\u5728\u8fd9\u91cc\u3002<br \/>\n    \/var\/log\/wtmp\u6216\/var\/log\/utmp \u2014 \u5305\u542b\u767b\u5f55\u4fe1\u606f\u3002\u4f7f\u7528wtmp\u53ef\u4ee5\u627e\u51fa\u8c01\u6b63\u5728\u767b\u9646\u8fdb\u5165\u7cfb\u7edf\uff0c\u8c01\u4f7f\u7528\u547d\u4ee4\u663e\u793a\u8fd9\u4e2a\u6587\u4ef6\u6216\u4fe1\u606f\u7b49\u3002<br \/>\n    \/var\/log\/faillog \u2013 \u5305\u542b\u7528\u6237\u767b\u5f55\u5931\u8d25\u4fe1\u606f\u3002\u6b64\u5916\uff0c\u9519\u8bef\u767b\u5f55\u547d\u4ee4\u4e5f\u4f1a\u8bb0\u5f55\u5728\u672c\u6587\u4ef6\u4e2d\u3002<\/p>\n<p>    \u9664\u4e86\u4e0a\u8ff0Log\u6587\u4ef6\u4ee5\u5916\uff0c \/var\/log\u8fd8\u57fa\u4e8e\u7cfb\u7edf\u7684\u5177\u4f53\u5e94\u7528\u5305\u542b\u4ee5\u4e0b\u4e00\u4e9b\u5b50\u76ee\u5f55\uff1a<\/p>\n<p>    \/var\/log\/httpd\/\u6216\/var\/log\/apache2 \u2014 \u5305\u542b\u670d\u52a1\u5668access_log\u548cerror_log\u4fe1\u606f\u3002<br \/>\n    \/var\/log\/lighttpd\/ \u2014 \u5305\u542blight HTTPD\u7684access_log\u548cerror_log\u3002<br \/>\n    \/var\/log\/mail\/ \u2013  \u8fd9\u4e2a\u5b50\u76ee\u5f55\u5305\u542b\u90ae\u4ef6\u670d\u52a1\u5668\u7684\u989d\u5916\u65e5\u5fd7\u3002<br \/>\n    \/var\/log\/prelink\/ \u2014 \u5305\u542b.so\u6587\u4ef6\u88abprelink\u4fee\u6539\u7684\u4fe1\u606f\u3002<br \/>\n    \/var\/log\/audit\/ \u2014 \u5305\u542b\u88ab Linux audit daemon\u50a8\u5b58\u7684\u4fe1\u606f\u3002<br \/>\n    \/var\/log\/samba\/ \u2013 \u5305\u542b\u7531samba\u5b58\u50a8\u7684\u4fe1\u606f\u3002<br \/>\n    \/var\/log\/sa\/ \u2014 \u5305\u542b\u6bcf\u65e5\u7531sysstat\u8f6f\u4ef6\u5305\u6536\u96c6\u7684sar\u6587\u4ef6\u3002<br \/>\n    \/var\/log\/sssd\/ \u2013 \u7528\u4e8e\u5b88\u62a4\u8fdb\u7a0b\u5b89\u5168\u670d\u52a1\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u9996\u5148\u627e\u5230\/var\/log\/btmp \u8fd9\u4e0a\u6587\u4ef6\u770b\u770b\u662f&#8230;<\/p>\n<div class=\"more-link-wrapper\"><a class=\"more-link\" href=\"http:\/\/www.kiccleaf.com\/?p=541\">Continue reading<span class=\"screen-reader-text\">\u770b\u770b\u8c01\u4e00\u76f4\u5728\u731c\u4f60\u7684Linux\u7cfb\u7edf\u5bc6\u7801<\/span><\/a><\/div>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"iawp_total_views":1,"footnotes":""},"categories":[4],"tags":[],"class_list":["post-541","post","type-post","status-publish","format-standard","hentry","category-linux-","entry"],"views":27056,"_links":{"self":[{"href":"http:\/\/www.kiccleaf.com\/index.php?rest_route=\/wp\/v2\/posts\/541","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.kiccleaf.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.kiccleaf.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.kiccleaf.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.kiccleaf.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=541"}],"version-history":[{"count":1,"href":"http:\/\/www.kiccleaf.com\/index.php?rest_route=\/wp\/v2\/posts\/541\/revisions"}],"predecessor-version":[{"id":542,"href":"http:\/\/www.kiccleaf.com\/index.php?rest_route=\/wp\/v2\/posts\/541\/revisions\/542"}],"wp:attachment":[{"href":"http:\/\/www.kiccleaf.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=541"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.kiccleaf.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=541"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.kiccleaf.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=541"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}