{"id":1420,"date":"2012-12-02T18:04:03","date_gmt":"2012-12-02T10:04:03","guid":{"rendered":"http:\/\/www.huzs.top\/?p=1420"},"modified":"2012-12-02T18:04:03","modified_gmt":"2012-12-02T10:04:03","slug":"linux%e6%9c%8d%e5%8a%a1%e5%99%a8%e5%ae%89%e8%a3%85%e5%a5%bd%e5%90%8e%e5%a6%82%e4%bd%95%e8%bf%9b%e8%a1%8c%e4%bc%98%e5%8c%96","status":"publish","type":"post","link":"https:\/\/www.huzs.top\/?p=1420","title":{"rendered":"Linux\u670d\u52a1\u5668\u5b89\u88c5\u597d\u540e\u5982\u4f55\u8fdb\u884c\u4f18\u5316"},"content":{"rendered":"

\u6211\u4eec\u7684\u670d\u52a1\u5668\u5e76\u4e0d\u662f\u5b89\u88c5\u5b8c\u6210\u540e\u5c31\u53ef\u76f4\u63a5\u6258\u7ba1\u5230\u673a\u623f\u4e86\uff0c\u800c\u662f\u9700\u8981\u8fdb\u884c\u4e00\u7cfb\u5217\u7684\u4f18\u5316\u914d\u7f6e\u548c\u5b89\u5168\u914d\u7f6e\u7b49<\/p>\n

\u3000\u30001\u3001\u5173\u95ed\u4e0d\u9700\u8981\u7684\u670d\u52a1<\/strong><\/p>\n

\u8fd9\u4e2a\u5e94\u8be5\u5f88\u5bb9\u6613\u7406\u89e3\u7684\uff0c\u51e1\u662f\u6211\u4eec\u7684\u7cfb\u7edf\u4e0d\u9700\u8981\u7684\u670d\u52a1\uff0c\u4e00\u6982\u5173\u95ed\uff0c\u8fd9\u6837\u4e00\u4e2a\u597d\u5904\u662f\u51cf\u5c11\u5185\u5b58\u548cCPU\u65f6\u95f4\u7684\u5360\u7528\uff0c\u53e6\u4e00\u4e2a\u597d\u5904\u76f8\u5bf9\u53ef\u4ee5\u63d0\u9ad8\u5b89\u5168\u6027<\/p>\n

\u90a3\u4e48\u54ea\u4e9b\u670d\u52a1\u662f\u80af\u5b9a\u8981\u4fdd\u7559\u7684\u5462?<\/p>\n

\u5728linux\u673a\u5668\u4e0a\u901a\u5e38\u6709\u56db\u9879\u670d\u52a1\u662f\u5fc5\u987b\u4fdd\u7559\u7684<\/p>\n

iptables<\/p>\n

linux\u4e0b\u5f3a\u5927\u7684\u9632\u706b\u5899\uff0c\u53ea\u8981\u673a\u5668\u9700\u8981\u8fde\u5230\u7f51\u4e0a\uff0c\u54ea\u91cc\u79bb\u5f97\u5f00\u5b83<\/p>\n

network<\/p>\n

linux\u673a\u5668\u7684\u7f51\u7edc\uff0c\u5982\u679c\u4e0d\u4e0a\u7f51\u53ef\u4ee5\u5173\u95ed\uff0c\u53ea\u8981\u4e0a\u7f51\u5f53\u7136\u8981\u6253\u5f00\u5b83<\/p>\n

sshd<\/p>\n

\u8fd9\u662fopenssh server,\u5982\u679c\u4f60\u7684\u673a\u5668\u4e0d\u662f\u672c\u5730\u64cd\u4f5c\uff0c\u800c\u662f\u6258\u7ba1\u5230IDC\u673a\u623f\uff0c<\/p>\n

\u90a3\u4e48\u8bbf\u95ee\u673a\u5668\u65f6\u9700\u8981\u901a\u8fc7\u8fd9\u4e2asshd\u670d\u52a1\u8fdb\u884c<\/p>\n

syslog<\/p>\n

\u8fd9\u662flinux\u7cfb\u7edf\u7684\u65e5\u5fd7\u7cfb\u7edf\uff0c\u5fc5\u987b\u8981\u6709\uff0c<\/p>\n

\u5426\u5219\u673a\u5668\u51fa\u73b0\u95ee\u9898\u65f6\u4f1a\u627e\u4e0d\u5230\u539f\u56e0<\/p>\n

\u9664\u4e86\u8fd9\u56db\u9879\u5fc5\u9700\u7684\u670d\u52a1\u4e4b\u5916\uff0c\u5176\u4ed6\u7684\u670d\u52a1\u9700\u8981\u4fdd\u7559\u54ea\u4e9b\u5462?<\/p>\n

\u8fd9\u65f6\u5c31\u53ef\u4ee5\u6839\u636e\u7cfb\u7edf\u7684\u7528\u9014\u800c\u5b9a\uff0c\u6bd4\u5982\uff1a\u6570\u636e\u5e93\u670d\u52a1\u5668\uff0c\u5c31\u9700\u8981\u542f\u7528mysqld(\u6216oracle)<\/p>\n

web\u670d\u52a1\u5668\uff0c\u5c31\u9700\u8981\u542f\u7528apache<\/p>\n

\u3000\u30002\u3001\u5173\u95ed\u4e0d\u9700\u8981\u7684tty<\/strong><\/p>\n

\u8bf7\u7f16\u8f91\u4f60\u7684\/etc\/inittab<\/p>\n

\u627e\u5230\u5982\u4e0b\u4e00\u6bb5\uff1a<\/p>\n

 <\/p>\n<\/p>\n<\/p>\n<\/p>\n
\u3000\u30001:2345:respawn:\/sbin\/mingetty tty1
2:2345:respawn:\/sbin\/mingetty tty2
3:2345:respawn:\/sbin\/mingetty tty3
4:2345:respawn:\/sbin\/mingetty tty4
5:2345:respawn:\/sbin\/mingetty tty5
6:2345:respawn:\/sbin\/mingetty tty6<\/td>\n

<\/tr>\n

<\/tbody>\n

<\/table>\n

\u8fd9\u6bb5\u547d\u4ee4\u4f7finit\u4e3a\u4f60\u6253\u5f00\u4e866\u4e2a\u63a7\u5236\u53f0\uff0c\u5206\u522b\u53ef\u4ee5\u7528alt+f1\u5230alt+f6\u8fdb\u884c\u8bbf\u95ee<\/p>\n

\u6b646\u4e2a\u63a7\u5236\u53f0\u9ed8\u8ba4\u90fd\u9a7b\u7559\u5728\u5185\u5b58\u4e2d\uff0c\u4e8b\u5b9e\u4e0a\u6ca1\u6709\u5fc5\u8981\u4f7f\u7528\u8fd9\u4e48\u591a\u7684<\/p>\n

\u4f60\u7528ps auxf\u8fd9\u4e2a\u547d\u4ee4\u53ef\u4ee5\u770b\u5230\uff0c\u662f\u516d\u4e2a\u8fdb\u7a0b<\/p>\n

 <\/p>\n

root 3004 0.0 0.0 1892 412 tty1 Ss+ Jun29 0:00 \/sbin\/mingetty tty1
root 3037 0.0 0.0 2492 412 tty2 Ss+ Jun29 0:00 \/sbin\/mingetty tty2
root 3038 0.0 0.0 2308 412 tty3 Ss+ Jun29 0:00 \/sbin\/mingetty tty3
root 3051 0.0 0.0 1812 412 tty4 Ss+ Jun29 0:00 \/sbin\/mingetty tty4
root 3056 0.0 0.0 2116 412 tty5 Ss+ Jun29 0:00 \/sbin\/mingetty tty5
root 3117 0.0 0.0 2396 412 tty6 Ss+ Jun29 0:00 \/sbin\/mingetty tty6<\/p>\n

 <\/p>\n

\u5982\u4f55\u5173\u95ed\u8fd9\u4e9b\u8fdb\u7a0b?<\/p>\n

\u901a\u5e38\u6211\u4eec\u4fdd\u7559\u524d2\u4e2a\u63a7\u5236\u53f0\u5c31\u53ef\u4ee5\u4e86\uff0c<\/p>\n

\u628a\u540e\u97624\u4e2a\u7528#\u6ce8\u91ca\u6389\u5c31\u53ef\u4ee5\u4e86<\/p>\n

\u7136\u540e\u65e0\u9700\u91cd\u542f\u673a\u5668\uff0c\u53ea\u9700\u8981\u6267\u884c init q \u8fd9\u4e2a\u547d\u4ee4\u5373\u53ef<\/p>\n

init q<\/p>\n

q\u4f5c\u4e3a\u53c2\u6570\u7684\u542b\u4e49\uff1a\u91cd\u65b0\u6267\u884c\/etc\/inittab\u4e2d\u7684\u547d\u4ee4<\/p>\n

\u4fee\u6539\u5b8c\u6210\u540e\u9700\u91cd\u542f\u673a\u5668\u4f7f\u4e4b\u751f\u6548<\/p>\n

\u00a0\u00a0\u00a03\u3001\u5982\u4f55\u5173\u95edatime?<\/strong><\/p>\n

\u4e00\u4e2alinux\u6587\u4ef6\u9ed8\u8ba4\u67093\u4e2a\u65f6\u95f4\uff1a<\/p>\n

atime:\u5bf9\u6b64\u6587\u4ef6\u7684\u8bbf\u95ee\u65f6\u95f4<\/p>\n

ctime:\u6b64\u6587\u4ef6inode\u53d1\u751f\u53d8\u5316\u7684\u65f6\u95f4<\/p>\n

mtime:\u6b64\u6587\u4ef6\u7684\u4fee\u6539\u65f6\u95f4<\/p>\n

\u5982\u679c\u6709\u591a\u4e2a\u5c0f\u6587\u4ef6\u65f6\u901a\u5e38\u6ca1\u6709\u5fc5\u8981\u8bb0\u5f55\u6587\u4ef6\u7684\u8bbf\u95ee\u65f6\u95f4\uff0c<\/p>\n

\u8fd9\u6837\u53ef\u4ee5\u51cf\u5c11\u78c1\u76d8\u7684io,\u6bd4\u5982web\u670d\u52a1\u5668\u7684\u9875\u9762\u4e0a\u6709\u591a\u4e2a\u5c0f\u56fe\u7247<\/p>\n

\u5982\u4f55\u8fdb\u884c\u8bbe\u7f6e\u5462?<\/p>\n

\u4fee\u6539\u6587\u4ef6\u7cfb\u7edf\u7684\u914d\u7f6e\u6587\u4ef6\uff1avi \/etc\/fstab<\/p>\n

\u5728\u5305\u542b\u5927\u91cf\u5c0f\u6587\u4ef6\u7684\u5206\u533a\u4e2d\u4f7f\u7528noatime,nodiratime\u4e24\u9879<\/p>\n

\u4f8b\u5982\uff1a<\/p>\n

\/dev\/md5 \/data\/pics1 ext3 noatime,nodiratime 0 0<\/p>\n

\u8fd9\u6837\u6587\u4ef6\u88ab\u8bbf\u95ee\u65f6\u5c31\u4e0d\u4f1a\u518d\u4ea7\u751f\u5199\u78c1\u76d8\u7684io<\/p>\n

\u3000\u30004\u3001\u4e00\u5b9a\u8981\u8ba9\u4f60\u7684\u670d\u52a1\u5668\u8fd0\u884c\u5728level 3\u4e0a<\/strong><\/p>\n

\u505a\u6cd5\uff1a<\/p>\n

vi \/etc\/inittab<\/p>\n

id:3:initdefault:<\/p>\n

\u8ba9\u670d\u52a1\u5668\u8fd0\u884cX\u662f\u6ca1\u6709\u5fc5\u8981\u7684<\/p>\n

\u3000\u30005\u3001\u4f18\u5316sshd<\/strong><\/p>\n

X11Forwarding no \/\/\u4e0d\u8fdb\u884cx\u56fe\u5f62\u7684\u8f6c\u53d1<\/p>\n

UseDNS no \/\/\u4e0d\u5bf9IP\u5730\u5740\u505a\u53cd\u5411\u7684\u89e3\u6790<\/p>\n

\u3000\u30006\u3001\u4f18\u5316shell<\/strong><\/p>\n

\u4fee\u6539\u547d\u4ee4history\u8bb0\u5f55<\/p>\n

# vi \/etc\/profile<\/p>\n

\u627e\u5230 HISTSIZE=1000 \u6539\u4e3a HISTSIZE=100<\/p>\n

\u7136\u540e source \/etc\/profile<\/p>\n","protected":false},"excerpt":{"rendered":"

\u6211\u4eec\u7684\u670d\u52a1\u5668\u5e76\u4e0d\u662f\u5b89\u88c5\u5b8c\u6210\u540e\u5c31\u53ef\u76f4\u63a5\u6258\u7ba1\u5230\u673a\u623f\u4e86\uff0c\u800c\u662f\u9700\u8981\u8fdb\u884c\u4e00\u7cfb\u5217\u7684\u4f18\u5316\u914d\u7f6e\u548c\u5b89\u5168\u914d\u7f6e\u7b49 \u3000\u30001\u3001\u5173\u95ed\u4e0d\u9700\u8981 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[],"class_list":["post-1420","post","type-post","status-publish","format-standard","hentry","category-linux"],"_links":{"self":[{"href":"https:\/\/www.huzs.top\/index.php?rest_route=\/wp\/v2\/posts\/1420","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.huzs.top\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.huzs.top\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.huzs.top\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.huzs.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1420"}],"version-history":[{"count":1,"href":"https:\/\/www.huzs.top\/index.php?rest_route=\/wp\/v2\/posts\/1420\/revisions"}],"predecessor-version":[{"id":1421,"href":"https:\/\/www.huzs.top\/index.php?rest_route=\/wp\/v2\/posts\/1420\/revisions\/1421"}],"wp:attachment":[{"href":"https:\/\/www.huzs.top\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1420"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.huzs.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1420"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.huzs.top\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1420"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}