{"id":65814,"date":"2014-01-22T07:53:15","date_gmt":"2014-01-21T23:53:15","guid":{"rendered":"http:\/\/www.xiaoyebailong.com\/?p=65814"},"modified":"2014-01-22T07:53:15","modified_gmt":"2014-01-21T23:53:15","slug":"%e8%b4%ad%e4%b9%b0-linux-vps-%e6%9c%8d%e5%8a%a1%e5%99%a8%e5%90%8e%e7%ae%80%e5%8d%95%e7%9a%84%e5%ae%89%e5%85%a8%e8%ae%be%e7%bd%ae","status":"publish","type":"post","link":"http:\/\/www.xiaoyebailong.com\/index.php\/2014\/01\/22\/65814.htm","title":{"rendered":"\u8d2d\u4e70 Linux VPS \u670d\u52a1\u5668\u540e\u7b80\u5355\u7684\u5b89\u5168\u8bbe\u7f6e"},"content":{"rendered":"<p>\u6211\u4eec\u5728\u8d2d\u4e70\u4e86 Linux \u7cfb\u7edf\u7684 VPS \u6216\u670d\u52a1\u5668\u540e\uff0c\u4e00\u822c\u7684\u5546\u5bb6\u90fd\u4f1a\u7ed9\u4f60\u4e00\u4e2a root \u6743\u9650\u7684\u8d26\u53f7\uff0c\u5e76\u4e14\u9ed8\u8ba4\u7684\u5bc6\u7801\u4e0d\u4f1a\u592a\u957f\uff0c\u8fd9\u662f\u5f88\u4e0d\u5b89\u5168\u7684\u3002\u7ecf\u5e38\u6709\u5ba2\u6237\u56e0\u4e3a\u5f31\u53e3\u4ee4\u800c\u88ab\u9ed1\u5ba2\u66b4\u529b\u7834\u89e3\u5bc6\u7801\u5bfc\u81f4 VPS \u670d\u52a1\u5668\u88ab\u5165\u4fb5\uff0c\u5e76\u7528\u6765\u5e72\u574f\u4e8b\u3002<\/p>\n<p>\u6240\u4ee5\uff0c\u5728\u5f00\u901a\u4e86 Linux \u7cfb\u7edf\u7684 VPS \u6216\u670d\u52a1\u5668\u540e\uff0c\u6211\u4eec\u6709\u5fc5\u8981\u505a\u4e00\u4e9b\u57fa\u672c\u7684\u5b89\u5168\u8bbe\u7f6e\u3002<\/p>\n<h2>\u4e00\u3001\u5173\u95ed SSH \u5bc6\u7801\u767b\u9646<\/h2>\n<p>\u9996\u5148\uff0c\u4f60\u9700\u8981\u6709\u81ea\u5df1\u7684 SSH Key\uff0c\u5982\u679c\u4f60\u4f7f\u7528 Windows \u7cfb\u7edf\uff0c\u53ef\u4ee5\u7528 Putty \u4e0b\u7684\u00a0<code>PUTTYGEN.EXE<\/code>\u00a0\u751f\u6210\u79c1\u5319\u548c\u516c\u5319\u3002<\/p>\n<h3>\u7b2c\u4e00\u6b65\uff0c\u8fd0\u884c\u00a0<code>PUTTYGEN.EXE<\/code><\/h3>\n<p><a title=\"\" href=\"http:\/\/www.xiaoyebailong.com\/wp-content\/uploads\/2014\/01\/e92f431f368ba524973a6c776e43b939.png\"><img decoding=\"async\" title=\"\" alt=\"\" src=\"http:\/\/www.xiaoyebailong.com\/wp-content\/uploads\/2014\/01\/e92f431f368ba524973a6c776e43b939.png\" \/><\/a><\/p>\n<p>\u4e00\u822c\uff0c\u6211\u4eec\u9009\u62e9\u9ed8\u8ba4\u7684 RSA \u52a0\u5bc6\u5373\u53ef\uff0c\u9ed8\u8ba4\u7684 1024 \u4f4d\u52a0\u5bc6\u8db3\u591f\u7528\uff0c\u5982\u679c\u8981\u4fdd\u9669\u70b9\uff0c\u53ef\u4ee5\u9009\u62e9 2048 \u6216 4096 \u4f4d\u52a0\u5bc6\uff0c\u5982\u56fe\u7ea2\u5708\u5904\uff1a<\/p>\n<p><a title=\"\" href=\"http:\/\/www.xiaoyebailong.com\/wp-content\/uploads\/2014\/01\/fddb38e6eaf10f74290c87a5ed24136a.png\"><img decoding=\"async\" title=\"\" alt=\"\" src=\"http:\/\/www.xiaoyebailong.com\/wp-content\/uploads\/2014\/01\/fddb38e6eaf10f74290c87a5ed24136a.png\" \/><\/a><\/p>\n<h3>\u7b2c\u4e8c\u6b65\uff0c\u70b9\u51fb Generate \uff0c\u7136\u540e\u9f20\u6807\u968f\u610f\u5728\u7a7a\u767d\u5904\u79fb\u52a8<\/h3>\n<p><a title=\"\" href=\"http:\/\/www.xiaoyebailong.com\/wp-content\/uploads\/2014\/01\/59d062e0825a8053f66a04521a340e05.png\"><img decoding=\"async\" title=\"\" alt=\"\" src=\"http:\/\/www.xiaoyebailong.com\/wp-content\/uploads\/2014\/01\/59d062e0825a8053f66a04521a340e05.png\" \/><\/a><\/p>\n<p>\u7b49\u8fdb\u5ea6\u6761\u6ee1\u4e86\uff0c\u5c31\u751f\u6210\u597d\u4f60\u7684 SSH Key \u4e86\uff1a<\/p>\n<p><a title=\"\" href=\"http:\/\/www.xiaoyebailong.com\/wp-content\/uploads\/2014\/01\/0193a5f25c1141315f02bab2f2cde58e.png\"><img decoding=\"async\" title=\"\" alt=\"\" src=\"http:\/\/www.xiaoyebailong.com\/wp-content\/uploads\/2014\/01\/0193a5f25c1141315f02bab2f2cde58e.png\" \/><\/a><\/p>\n<p>\u5982\u679c\u8981\u66f4\u5b89\u5168\u4e00\u70b9\uff0c\u53ef\u4ee5\u8bbe\u7f6e\u00a0<code>Key Passphrase<\/code>\u00a0\uff0c\u4e5f\u5c31\u662f\u5bc6\u7801\uff0c\u8fd9\u4e2a\u5bc6\u7801\u548c root \u5bc6\u7801\u4e0d\u540c\uff0c\u4e00\u65e6\u522b\u4eba\u83b7\u53d6\u4e86\u4f60\u7684 Key \uff0c\u6ca1\u6709\u8fd9\u4e2a\u5bc6\u7801\u4ed6\u4e5f\u52a0\u8f7d\u4e0d\u4e86\u4f60\u7684 Key\u3002<\/p>\n<h3>\u7b2c\u4e09\u6b65\uff0c\u70b9\u51fb\u00a0<code>Save Public Key<\/code>\u00a0\u4fdd\u5b58\u4f60\u7684\u516c\u5319\uff0c\u6574\u4e2a\u6587\u4ef6\u5982\u4e0b<\/h3>\n<pre>---- BEGIN SSH2 PUBLIC KEY ----\r\nComment: \"showfom-rsa-key-20130701\"\r\nAAAAB3NzaC1yc2EAAAABJQAAAQEAna\/D52fTZ1YNjxnwAJAUhxRdPCwar8ZfWLdw\r\nHEmT64Zqtxrz65KRxesHFRVND8Xn1GKtuQIQMu\/d5fFhEajFbjoSw\/n+Mz58irzU\r\nXDbE34Y\/nxy1\/iWc6aJz6lX6wT7nnDcVoqX8Be8j\/8sjS7cMFarn3Iy+0bSQNON3\r\n681+hEFM7mpoYyqrCVBpARfiiEZb8tNkfzrKJFrciZ87yaKkncPeDCIbYKjuJY2h\r\nciK+Y+IptLdoMj5kQkSXStJFQUfFg+s3FQJ9Istu4C7BF3ZafD4mEupA7P90RRUj\r\nLj95mUW\/P\/ebWGsMVbnxz\/Xmq3OL\/TOuo85umbSN44DmSB3NEQ==\r\n---- END SSH2 PUBLIC KEY ----<\/pre>\n<p>\u5176\u4e2d\u4e2d\u95f4\u90a3\u4e48\u957f\u957f\u7684\u4e00\u4e32\uff0c\u5c31\u662f\u4f60\u7684\u516c\u5319\u4e86\uff0c\u53ef\u4ee5\u653e\u5728\u670d\u52a1\u5668\u7684\u00a0<code>~\/.ssh\/authorized_keys<\/code>\u00a0\uff0c\u6211\u4eec\u5e94\u91c7\u53d6\u4ee5\u4e0b\u7684\u683c\u5f0f\uff1a<\/p>\n<div>\n<div id=\"highlighter_812151\">\n<table border=\"0\" cellspacing=\"0\" cellpadding=\"0\">\n<tbody>\n<tr>\n<td>\n<div>1<\/div>\n<\/td>\n<td>\n<div>\n<div><code>ssh<\/code><code>-rsa AAAAB3NzaC1yc2EAAAABJQAAAQEAna<\/code><code>\/D52fTZ1YNjxnwAJAUhxRdPCwar8ZfWLdwHEmT64Zqtxrz65KRxesHFRVND8Xn1GKtuQIQMu\/d5fFhEajFbjoSw\/n<\/code><code>+Mz58irzUXDbE34Y<\/code><code>\/nxy1\/iWc6aJz6lX6wT7nnDcVoqX8Be8j\/8sjS7cMFarn3Iy<\/code><code>+0bSQNON3681+hEFM7mpoYyqrCVBpARfiiEZb8tNkfzrKJFrciZ87yaKkncPeDCIbYKjuJY2hciK+Y+IptLdoMj5kQkSXStJFQUfFg+s3FQJ9Istu4C7BF3ZafD4mEupA7P90RRUjLj95mUW<\/code><code>\/P\/ebWGsMVbnxz\/Xmq3OL\/TOuo85umbSN44DmSB3NEQ<\/code><code>== showfom-rsa-key-20130701<\/code><\/div>\n<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<p>\u5176\u4e2d ssh-rsa \u4e3a\u52a0\u5bc6\u7c7b\u578b\uff0c showfom-rsa-key-20130701 \u4e3a\u8bf4\u660e\uff0c\u53ef\u4ee5\u662f\u4efb\u610f\u6587\u672c\uff0c\u5982 showfom-notebook<\/p>\n<h3>\u7b2c\u56db\u6b65\uff0c\u70b9\u51fb\u00a0<code>Save Private Key<\/code>\u00a0\u751f\u6210\u7528\u4e8e Putty \u7684\u79c1\u5319\uff0c\u8fd9\u91cc\u6211\u4eec\u4fdd\u5b58\u4e3a\u00a0<code>showfom.ppk<\/code>\u00a0\uff0c\u6574\u4e2a\u6587\u4ef6\u5982\u4e0b<\/h3>\n<pre>PuTTY-User-Key-File-2: ssh-rsa\r\nEncryption: none\r\nComment: Showfom\r\nPublic-Lines: 4\r\nAAAAB3NzaC1yc2EAAAABJQAAAIBTILl54rOaEEkv95VKR6IEZ9Y0d1IpNNQeyk+e\r\nyHPtc7jVTmfL0oiho9s2UqquaNGmLmzLjhXRj3cPZ1VZInPFqVtgWYKWPEpGckGI\r\n7\/iTpNUuz6tKguEi5RYaEtfgKWF13qC5S8dWlk2FGv7dY5GbSoZMHZtc+zTL9Jpn\r\nNCa5nw==\r\nPrivate-Lines: 8\r\nAAAAgEWly9TSsiciZtUpYWe\/eegD+Kh\/pbPSUNuG6MNOAEN8ocd5Ctsz2kI9LUkw\r\ngSpX0j8f+kmuZU62eIKHAlGZZ+nVyklcHE7qFO2AyMCuniUYm0mgdN5gjXUBFduV\r\nVTjIaYwd282Yo0xtjPWN0DJF3jmmsrw6pwMwaa6r6pAlKANtAAAAQQClYrYCu3eu\r\n0GcGw9G2MVLIZoHoKYPL2e6HjfPQhvsze6AKUzpTF\/DGMkBFY6dH\/\/0zSoHue2jn\r\ngNsaLQygBvT\/AAAAQQCArGNL76eXHtR28TRY2PONg8ij3YN9mCzYG3sDsV8feGAk\r\nRyZ8T5b6xZuf9UyvZ1lIA10i7ULZ63s2hvCZUxthAAAAQD+auXN8fUAylROh8zTM\r\n14FyY7GRwdN7y7+EtZ8NuVDLvZP9Svpd4V5Ti9LpqjtiUcp0eELCd5i7zxyV2oHe\r\nU78=\r\nPrivate-MAC: ce0968aff198e2c2550704625b23ba7575e6b260<\/pre>\n<p>\u8fd9\u4e2a\u00a0<code>showfom.ppk<\/code>\u00a0\u4f60\u9700\u8981\u901a\u8fc7 Putty \u76ee\u5f55\u4e0b\u7684\u00a0<code>PAGEANT.EXE<\/code>\u00a0\u5bfc\u5165\uff0c\u8fd9\u6837\u4f60\u5c31\u53ef\u4ee5\u4e0d\u9700\u8981\u8f93\u5165 root \u5bc6\u7801\u5373\u53ef\u767b\u5f55\u4f60\u7684 VPS\u3002<\/p>\n<p><strong>PS\uff1a WinSCP \u548c Putty \u7684 SSH Key \u662f\u901a\u7528\u7684\uff0c\u53ea\u9700\u8981\u5bfc\u5165\u4e00\u6b21\u5373\u53ef\u3002<\/strong><\/p>\n<p>\u4f46\u662f Putty \u7684 Private Key \u662f\u4e0d\u6807\u51c6\u7684\uff0c\u53ea\u80fd\u7528\u4e8e Putty \u6216 WinSCP \uff0c\u5982\u679c\u4f60\u4f7f\u7528 Xshell 4 \uff0c\u5219\u9700\u8981\u8f6c\u6362\u6210 rsa \u6587\u4ef6\uff0c\u53ef\u4ee5\u5728\u00a0<code>PUTTYGEN.EXE<\/code>\u00a0\u4e0a\u65b9\u83dc\u5355\u91cc\u7684\u00a0<code>Conversions<\/code>\u00a0&gt;\u00a0<code>Export OpenSSH Key<\/code>\u00a0\u65b9\u5f0f\u8f6c\u6362\u3002<\/p>\n<h3>\u7b2c\u4e94\u6b65\uff0c\u5bfc\u5165\u4f60\u7684 Linux VPS \u6216\u670d\u52a1\u5668<\/h3>\n<p>\u5982\u679c\u4f60\u672c\u5730\u662f Linux \u684c\u9762\u73af\u5883\uff0c\u53ef\u4ee5\u5f88\u7b80\u5355\u7684\u4e00\u6761\u547d\u4ee4\u641e\u5b9a\uff1a<\/p>\n<pre>ssh-copy-id -i ~\/.ssh\/id_rsa.pub root@198.51.100.100<\/pre>\n<p>\u4f46\u662f\u5927\u591a\u6570\u7528\u6237\u8fd8\u662f Windows \u7528\u6237\uff0c\u6240\u4ee5\u6211\u5efa\u8bae\u4e24\u79cd\u6bd4\u8f83\u7b80\u5355\u7684\u65b9\u6cd5<\/p>\n<p>1\u3001\u628a\u81ea\u5df1\u7684\u516c\u5319\u653e\u5728 https:\/\/launchpad.net\/ \u7f51\u7ad9\uff0c\u5e76\u5f97\u5230\u7c7b\u4f3c https:\/\/launchpad.net\/~showfom\/+sshkeys \u8fd9\u6837\u7684\u5730\u5740\uff0c\u7136\u540e\u901a\u8fc7\u4ee5\u4e0b\u547d\u4ee4\u5bfc\u5165\u4f60\u7684 Key<\/p>\n<pre>curl https:\/\/launchpad.net\/~showfom\/+sshkeys &gt; ~\/.ssh\/authorized_keys<\/pre>\n<p>\u5982\u679c\u6ca1\u6709 .ssh \u76ee\u5f55\uff0c\u53ef\u4ee5\u65b0\u5efa\u7acb\u4e00\u4e2a<\/p>\n<pre>mkdir .ssh<\/pre>\n<p>2\u3001\u4e5f\u53ef\u4ee5\u76f4\u63a5\u5199\u5165 authorized_keys \u6587\u4ef6<\/p>\n<div>\n<div id=\"highlighter_377354\">\n<table border=\"0\" cellspacing=\"0\" cellpadding=\"0\">\n<tbody>\n<tr>\n<td>\n<div>1<\/div>\n<div>2<\/div>\n<div>3<\/div>\n<div>4<\/div>\n<\/td>\n<td>\n<div>\n<div><code>cat<\/code> <code>&gt;&gt;<\/code><code>\/root\/<\/code><code>.<\/code><code>ssh<\/code><code>\/authorized_keys<\/code><code>&lt;&lt;EOF<\/code><\/div>\n<div><\/div>\n<div><code>ssh<\/code><code>-rsa AAAAB3NzaC1yc2EAAAABJQAAAQEAna<\/code><code>\/D52fTZ1YNjxnwAJAUhxRdPCwar8ZfWLdwHEmT64Zqtxrz65KRxesHFRVND8Xn1GKtuQIQMu\/d5fFhEajFbjoSw\/n<\/code><code>+Mz58irzUXDbE34Y<\/code><code>\/nxy1\/iWc6aJz6lX6wT7nnDcVoqX8Be8j\/8sjS7cMFarn3Iy<\/code><code>+0bSQNON3681+hEFM7mpoYyqrCVBpARfiiEZb8tNkfzrKJFrciZ87yaKkncPeDCIbYKjuJY2hciK+Y+IptLdoMj5kQkSXStJFQUfFg+s3FQJ9Istu4C7BF3ZafD4mEupA7P90RRUjLj95mUW<\/code><code>\/P\/ebWGsMVbnxz\/Xmq3OL\/TOuo85umbSN44DmSB3NEQ<\/code><code>== showfom-rsa-key-20130701<\/code><\/div>\n<div><code>EOF<\/code><\/div>\n<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<p>\u5728\u67d0\u4e9b\u670d\u52a1\u5546\u7684 CentOS \u7cfb\u7edf\u91cc\uff0c\u7531\u4e8e\u5f00\u542f\u4e86\u00a0<code>SELinux<\/code>\u00a0\uff0c\u9ed8\u8ba4\u662f\u7981\u6b62\u4e86 .ssh \u76ee\u5f55\u7684\u6743\u9650\u7684\uff0c\u53ef\u4ee5\u7528\u4e0b\u9762\u7684\u547d\u4ee4\u89e3\u9664\u9650\u5236\uff1a<\/p>\n<pre>restorecon -R -v \/root\/.ssh<\/pre>\n<p>\u5982\u679c\u9047\u5230\u00a0<code>authorized_keys<\/code>\u00a0\u6743\u9650\u95ee\u9898\uff0c\u53ef\u7528\u5982\u4e0b\u547d\u4ee4\u89e3\u51b3\uff1a<\/p>\n<pre>chattr -i authorized_keys<\/pre>\n<p>\u7136\u540e\u4f60\u53ef\u4ee5\u91cd\u542f\u5f00\u542f\u4e00\u4e2a SSH \u7a97\u53e3\uff0c\u6d4b\u8bd5\u662f\u5426\u4e0d\u9700\u8981\u8f93\u5165\u5bc6\u7801\u5373\u53ef\u7528 root \u767b\u9646\u3002<\/p>\n<h3>\u7b2c\u516d\u6b65\uff0c\u5173\u95ed SSH \u5bc6\u7801\u767b\u9646<\/h3>\n<p>\u7f16\u8f91 SSH \u914d\u7f6e\u6587\u4ef6\uff1a<\/p>\n<pre>vim \/etc\/ssh\/sshd_config<\/pre>\n<p>\u627e\u5230<\/p>\n<pre>#PasswordAuthentication yes<\/pre>\n<p>\u5e76\u6539\u4e3a<\/p>\n<pre>PasswordAuthentication no<\/pre>\n<p>\u4fdd\u5b58\uff0c\u9000\u51fa\uff0c\u91cd\u542f SSH \u670d\u52a1<\/p>\n<p>Ubuntu \u4e0b\uff1a<\/p>\n<pre>\/etc\/init.d\/ssh restart<\/pre>\n<p>CentOS \u4e0b\uff1a<\/p>\n<pre>\/etc\/init.d\/sshd restart<\/pre>\n<p>\u597d\u4e86\uff0c\u8fd9\u6837\u7981\u6b62 SSH \u5bc6\u7801\u767b\u9646\u5c31\u5927\u529f\u544a\u6210\uff0c\u8fd9\u4e00\u6b65\u5c31\u62d2\u7edd\u4e86 90% \u7684\u5165\u4fb5\u5371\u9669\uff0c\u5f53\u7136\uff0c\u4f60\u81ea\u5df1\u7684\u79c1\u5319\u4e00\u5b9a\u8981\u4fdd\u5b58\u597d\uff0c\u5426\u5219\u88ab\u522b\u4eba\u5077\u8d70\u53ef\u662f\u4e0d\u9700\u8981\u5bc6\u7801\u5c31\u80fd\u8fdb\u4f60\u7684\u670d\u52a1\u5668\u54e6\u3002<\/p>\n<h2>\u4e8c\u3001\u5b89\u88c5 CSF \u9632\u706b\u5899\u5c4f\u853d\u5c1d\u8bd5\u5165\u4fb5\u670d\u52a1\u5668\u7684 IP<\/h2>\n<p>CSF \u9632\u706b\u5899\u5b89\u88c5\u7565\u7b80\u5355\uff0c\u51e0\u4e2a\u547d\u4ee4\u5373\u53ef\u641e\u5b9a\uff1a<\/p>\n<pre>rm -fv csf.tgz\r\nwget http:\/\/www.configserver.com\/free\/csf.tgz\r\ntar -xzf csf.tgz\r\ncd csf\r\nsh install.sh<\/pre>\n<p>\u7136\u540e\u8fd0\u884c\u00a0<code>perl \/usr\/local\/csf\/bin\/csftest.pl<\/code>\u00a0\u68c0\u6d4b\u662f\u5426\u5b89\u88c5\u6210\u529f<\/p>\n<p>\u4e3a\u4e86\u9632\u6b62\u7cfb\u7edf\u8bef\u5c4f\u853d\u672c\u5730 IP\uff0c\u53ef\u4ee5\u4fee\u6539\u00a0<code>\/etc\/csf\/csf.allow<\/code>\u00a0\u548c\u00a0<code>\/etc\/csf\/csf.ignore<\/code>\u00a0\u6587\u4ef6\u52a0\u5165\u4f60\u9700\u8981\u7684\u767d\u540d\u5355 IP \uff0c\u7136\u540e\u7528\u00a0<code>csf -r<\/code>\u00a0\u547d\u4ee4\u91cd\u542f\u8bfb\u53d6\u914d\u7f6e\u6587\u4ef6\u5373\u53ef\u3002<\/p>\n<h2>\u4e09\u3001\u7528 iptables \u53ea\u5f00\u542f\u5e38\u89c4\u7aef\u53e3<\/h2>\n<p>\u4e00\u822c\u6211\u4eec\u53ea\u9700\u8981\u5f00\u542f 22, 53\uff0c 80\uff0c 443 \u8fd9\u4e09\u4e2a\u5e38\u89c1\u7684\u5bf9\u5916\u5f00\u653e\u7aef\u53e3\uff0c\u53ef\u4ee5\u4f7f\u7528\u5982\u4e0b\u547d\u4ee4<\/p>\n<p>\u6e05\u7a7a iptables \u9ed8\u8ba4\u89c4\u5219<\/p>\n<pre>iptables -F<\/pre>\n<p>\u5141\u8bb8 22 \u7aef\u53e3\u8fdb\u5165\u548c\u8fd4\u56de<\/p>\n<pre>iptables -A INPUT -p tcp --dport 22 -j ACCEPT\r\niptables -A OUTPUT -p tcp --sport 22 -m state --state ESTABLISHED -j ACCEPT<\/pre>\n<p>\u5141\u8bb8 53 \u7aef\u53e3\uff0c\u4e00\u822c\u4f5c\u4e3a DNS \u670d\u52a1\u4f7f\u7528<\/p>\n<pre>iptables -A OUTPUT -p udp --dport 53 -j ACCEPT\r\niptables -A INPUT -p udp --sport 53 -j ACCEPT<\/pre>\n<p>\u5141\u8bb8\u672c\u673a\u8bbf\u95ee\u672c\u673a<\/p>\n<pre>iptables -A INPUT -s 127.0.0.1 -d 127.0.0.1 -j ACCEPT\r\niptables -A OUTPUT -s 127.0.0.1 -d 127.0.0.1 -j ACCEPT<\/pre>\n<p>\u5141\u8bb8\u6240\u6709 IP \u8bbf\u95ee 80 \u548c 443 \u7aef\u53e3\uff0c\u4e00\u822c\u4f5c\u4e3a http \u548c https \u7528\u9014<\/p>\n<pre>iptables -A INPUT -p tcp -s 0\/0 --dport 80 -j ACCEPT\r\niptables -A OUTPUT -p tcp --sport 80 -m state --state ESTABLISHED -j ACCEPT\r\niptables -A INPUT -p tcp -s 0\/0 --dport 443 -j ACCEPT\r\niptables -A OUTPUT -p tcp --sport 443 -m state --state ESTABLISHED -j ACCEPT<\/pre>\n<p>\u4fdd\u5b58\u914d\u7f6e<\/p>\n<pre>iptables-save &gt; \/etc\/sysconfig\/iptables<\/pre>\n<p>\u91cd\u65b0\u52a0\u8f7d iptables<\/p>\n<pre>iptables -L<\/pre>\n<h2>\u56db\u3001\u5b89\u88c5 fail2ban \u5c4f\u853d\u5e76\u4e3e\u62a5\u626b\u63cf SSH \u7aef\u53e3\u7684 IP<\/h2>\n<p>\u6709\u5f88\u591a\u7cbe\u529b\u65fa\u76db\u7684\u5bb6\u4f19\u4f1a\u6574\u5929\u626b\u63cf SSH \u5bc6\u7801\uff0c\u5f53\u7136\u76f4\u63a5\u5173\u95ed SSH \u5bc6\u7801\u767b\u9646\u5373\u53ef\u9632\u6b62\uff0c\u4f46\u662f\u4e3a\u4e86\u7ed9\u4ed6\u4eec\u4e00\u70b9\u6559\u8bad\uff0c\u53ef\u4ee5\u5b89\u88c5 fail2ban \uff0c\u5c4f\u853d\u4e4b\u4f59\uff0c\u8fd8\u80fd\u81ea\u52a8\u5199\u4e3e\u62a5\u4fe1\u7ed9 IP \u6240\u5728\u7684 ISP\u3002<\/p>\n<p>CentOS \u4e0b\u5b89\u88c5\uff1a<\/p>\n<p>\u5bfc\u5165 epel \u6e90\uff1a<\/p>\n<p>CentOS 6.x 32 \u4f4d\uff1a<\/p>\n<pre>rpm -Uvh http:\/\/download.fedoraproject.org\/pub\/epel\/6\/i386\/epel-release-6-8.noarch.rpm<\/pre>\n<p>CentOS 6.x 64 \u4f4d\uff1a<\/p>\n<pre>rpm -Uvh http:\/\/download.fedoraproject.org\/pub\/epel\/6\/x86_64\/epel-release-6-8.noarch.rpm<\/pre>\n<p>\u5b89\u88c5 fail2ban<\/p>\n<pre>yum -y install fail2ban\r\ncp \/etc\/fail2ban\/jail.conf \/etc\/fail2ban\/jail.local\r\nservice fail2ban start<\/pre>\n<p>Ubuntu \/ Debian \u4e0b\u5b89\u88c5\uff1a<\/p>\n<pre>apt-get install fail2ban -y<\/pre>\n<p>\u901a\u8fc7\u67e5\u770b\u00a0<code>\/var\/log\/fail2ban.log<\/code>\u00a0\u6587\u4ef6\u5373\u53ef\u77e5\u9053\u6709\u54ea\u4e9b\u7cbe\u529b\u8fc7\u5269\u7684\u5bb6\u4f19\u5728\u6574\u5929\u626b\u63cf\u4f60\u7684 SSH \u4e86\u3002<\/p>\n<h2>\u540e\u8bb0<\/h2>\n<p>\u56e0\u4e3a\u8fd1\u671f\u4e0d\u5c11\u5ba2\u6237\u7684 VPS \u6216\u670d\u52a1\u5668\u88ab\u9ed1\u5ba2\u5165\u4fb5\uff0c\u539f\u56e0\u90fd\u662f\u7528\u4e86\u5f88\u7b80\u5355\u7684 root \u5bc6\u7801\uff0c\u6240\u4ee5\u8003\u8651\u4ee5\u540e\u5356\u65e0\u7ba1\u7406\u578b\u7684 VPS \u65f6\uff0c\u76f4\u63a5\u505a\u4e2a\u5c4f\u853d\u5bc6\u7801\u7684\u7cfb\u7edf\uff0c\u7528\u6237\u8d2d\u4e70\u7684\u65f6\u5019\u63d0\u4ea4\u81ea\u5df1\u7684 SSH Key \uff0c\u6216\u8005\u7cfb\u7edf\u5206\u914d\u4f60\u4e00\u4e2a SSH Key \uff0c\u8fd9\u6837\u5c31\u4f1a\u5b89\u5168\u591a\u3002\u56fd\u5916\u7684 Amazon EC2\u3001 DigitalOcean \u548c HPCloud \u5747\u6709\u5bfc\u5165\u81ea\u5df1 SSH Key \u5e76\u9ed8\u8ba4\u5c4f\u853d\u5bc6\u7801\u7684\u65b9\u5f0f\uff0c\u5927\u5927\u589e\u52a0\u4e86\u5b89\u5168\u6027\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6211\u4eec\u5728\u8d2d\u4e70\u4e86 Linux \u7cfb\u7edf\u7684 VPS \u6216\u670d\u52a1\u5668\u540e\uff0c\u4e00\u822c\u7684\u5546\u5bb6\u90fd\u4f1a\u7ed9\u4f60\u4e00\u4e2a root \u6743\u9650\u7684\u8d26\u53f7\uff0c\u5e76\u4e14\u9ed8\u8ba4\u7684\u5bc6\u7801\u4e0d\u4f1a\u592a\u957f\uff0c\u8fd9\u662f\u5f88\u4e0d\u5b89\u5168\u7684\u3002\u7ecf\u5e38\u6709\u5ba2\u6237\u56e0\u4e3a\u5f31\u53e3\u4ee4\u800c\u88ab\u9ed1\u5ba2\u66b4\u529b\u7834\u89e3\u5bc6\u7801\u5bfc\u81f4 VPS \u670d\u52a1\u5668\u88ab\u5165\u4fb5\uff0c\u5e76\u7528\u6765\u5e72\u574f\u4e8b\u3002 \u6240\u4ee5\uff0c\u5728\u5f00\u901a\u4e86 &#8230;<\/p>\n","protected":false},"author":1,"featured_media":65815,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7],"tags":[59,29,58],"topic":[],"class_list":["post-65814","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-server","tag-centos","tag-linux","tag-vps"],"_links":{"self":[{"href":"http:\/\/www.xiaoyebailong.com\/index.php\/wp-json\/wp\/v2\/posts\/65814","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.xiaoyebailong.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.xiaoyebailong.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.xiaoyebailong.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.xiaoyebailong.com\/index.php\/wp-json\/wp\/v2\/comments?post=65814"}],"version-history":[{"count":1,"href":"http:\/\/www.xiaoyebailong.com\/index.php\/wp-json\/wp\/v2\/posts\/65814\/revisions"}],"predecessor-version":[{"id":65819,"href":"http:\/\/www.xiaoyebailong.com\/index.php\/wp-json\/wp\/v2\/posts\/65814\/revisions\/65819"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/www.xiaoyebailong.com\/index.php\/wp-json\/wp\/v2\/media\/65815"}],"wp:attachment":[{"href":"http:\/\/www.xiaoyebailong.com\/index.php\/wp-json\/wp\/v2\/media?parent=65814"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.xiaoyebailong.com\/index.php\/wp-json\/wp\/v2\/categories?post=65814"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.xiaoyebailong.com\/index.php\/wp-json\/wp\/v2\/tags?post=65814"},{"taxonomy":"topic","embeddable":true,"href":"http:\/\/www.xiaoyebailong.com\/index.php\/wp-json\/wp\/v2\/topic?post=65814"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}