\u5148\u8bb2\u7ed3\u8bba\uff1a<\/p>\n
\u5ffd\u7565\u5df2\u7ecf\u8fc7\u65f6\u7684NIS\/YP\u76f8\u5173\u5185\u5bb9\uff08\/sbin\/sysctl kernel.domainname\u3001\/bin\/domainname\u3001\/bin\/nisdomainname\u3001\/bin\/ypdomainname\u7b49\uff09<\/p>\n
\/bin\/hostname\u3001\/sbin\/sysctl kernel.hostname \u548c \/bin\/uname -n \u662f\u4e00\u7801\u4e8b\uff0c\u90fd\u662f\u672c\u673a\u7684\u4e3b\u673a\u540d<\/p>\n
\/bin\/dnsdomainname \u547d\u4ee4\u4f1a\u628a\u4e0a\u8ff0\u4e3b\u673a\u540d\u6309\u201c\u7b2c\u4e00\u4e2a\u70b9\u201d\u5206\u6210\u4e24\u7aef\uff0c\u8f93\u51fa\u540e\u4e00\u6bb5\u3002\u8fd9\u662f\u7b80\u5355\u7684\u5b57\u7b26\u4e32\u5904\u7406\u7684\u7ed3\u679c\uff0c\u5728\u5185\u6838\u548cDNS\u5c42\u9762\u5747\u65e0\u6b63\u5f0f\u610f\u4e49\u3002<\/p>\n
\/etc\/resolv.conf\u6587\u4ef6\u91cc\u7684search\u6216domain\u6307\u4ee4\uff0c\u7528\u4e8e\u4ece\u672c\u673a\u8bbf\u95ee\u5916\u90e8\u77ed\u4e3b\u673a\u540d\u65f6\uff0c\u8865\u5145\u57df\u540d\u7684\u540e\u7f00\u90e8\u5206\u3002<\/p>\n
<\/p>\n
hostname\u547d\u4ee4\uff1a<\/p>\n
\u901a\u8fc7gethostname(2)\u51fd\u6570\u8bfb\u5230\u672c\u673a\u7684\u4e3b\u673a\u540d\u3002\u5728glibc\u7684\u60c5\u51b5\u4e0b\uff0cgethostname(2)\u4e0d\u662fsyscall\u800c\u662f\u6807\u51c6\u5e93\u51fd\u6570\uff0c\u8f6c\u800c\u8c03\u7528uname(2) \uff08\u6211\u4e0d\u592a\u786e\u8ba4\u8c03\u7528\u7684\u662fglibc uname\u8fd8\u662fsyscall uname\uff09\u3002\u6839\u636e\u00a0https:\/\/github.com\/torvalds\/linux\/blob\/master\/Documentation\/sysctl\/kernel.txt#L285 \u7684\u8bf4\u6cd5\uff0c\/proc\/sys\/kernel\/hostname\u3001sysctl hostname \u548chostname\u547d\u4ee4\u5e94\u8be5\u662f\u529f\u80fd\u76f8\u540c\u7684\u3002<\/p>\n
hostname -d \u6216\u8005 dnsdomainname \u547d\u4ee4\uff1a<\/p>\n
\u6839\u636e\/etc\/host.conf\u6307\u5b9a\u7684\u987a\u5e8f\uff0c\u5148\u5c1d\u8bd5\/etc\/hosts\u7136\u540e\u5c1d\u8bd5DNS\uff0c\u67e5\u627e\u81ea\u5df1\u7684\u4e3b\u673a\u540d\u3002\u5982\u679c\u80fd\u627e\u5230\uff0c\u628a\u7b2c\u4e00\u6bb5\u53bb\u6389\u4e4b\u540e\uff0c\u8f93\u51fa\u5269\u4e0b\u7684\u90e8\u5206\u3002\u8fd9\u4e2a\u8f93\u51fa\u4e0d\u5177\u5907\u5185\u6838\u610f\u4e49\uff0c\u53ea\u662f\u4e3b\u673a\u540d\u7ecf\u8fc7\u5b57\u7b26\u4e32\u5904\u7406\u4e4b\u540e\u7684\u6d3e\u751f\u7ed3\u679c<\/p>\n
hostname –fqdn\u547d\u4ee4\uff1a<\/p>\n
getaddrinfo()\u51fd\u6570\u67e5\u8be2\u5230\u7684ai_canonname<\/p>\n
strace\u89c2\u5bdf\u5230\u7684\u884c\u4e3a\u662f\u53bbDNS\u67e5\u4e00\u4e0b\u4e3b\u673a\u540d\uff08\u5982\u679c\u4e3b\u673a\u540d\u662f\u77ed\u5f62\u5f0f\uff0c\u6309\u9700\u8865\u5145\/etc\/resolv.conf\u91cc\u58f0\u660e\u7684search\/domain\u540e\u7f00\uff09\u5bf9\u5e94\u7684A\u8bb0\u5f55\uff0c\u53ea\u8981\u80fd\u67e5\u5230\uff0c\u5373\u4f7f\u8fd4\u56de\u7684IP\u5730\u5740\u4e0d\u662f\u672c\u673a\u7684\u4e5f\u4e0d\u7ba1\uff0c\u5c31\u4ee5\u8fd9\u4e2a\u4e3b\u673a\u540d\u4f5c\u4e3a\u7ed3\u679c\u3002<\/p>\n
hostname –all-fqdn\u547d\u4ee4\uff1a<\/p>\n
\u62ff\u81ea\u5df1\u7684IP\u5730\u5740\u4eec\u5faa\u73af\u8c03\u7528getnameinfo()\u51fd\u6570\uff08strace\/tcpdump\u89c2\u5bdf\u5230\u7684\u5177\u4f53\u884c\u4e3a\u662f\u53bbDNS\u67e5PTR\u8bb0\u5f55\uff09\uff0c\u5e76\u5168\u90e8\u8f93\u51fa<\/p>\n","protected":false},"excerpt":{"rendered":"
\u5148\u8bb2\u7ed3\u8bba\uff1a \u5ffd\u7565\u5df2\u7ecf\u8fc7\u65f6\u7684NIS\/YP\u76f8\u5173\u5185\u5bb9\uff08\/sbin\/sysctl kernel.domainname\u3001\/bin\/domainname\u3001\/bin\/nisdomainname\u3001\/bin\/ypdomainname\u7b49\uff09 \/bin\/hostname\u3001\/sbin\/sysctl kernel.hostname \u548c \/bin\/uname -n \u662f\u4e00\u7801\u4e8b\uff0c\u90fd\u662f\u672c\u673a\u7684\u4e3b\u673a\u540d \/bin\/dnsdomainname \u547d\u4ee4\u4f1a\u628a\u4e0a\u8ff0\u4e3b\u673a\u540d\u6309\u201c\u7b2c\u4e00\u4e2a\u70b9\u201d\u5206\u6210\u4e24\u7aef\uff0c\u8f93\u51fa\u540e\u4e00\u6bb5\u3002\u8fd9\u662f\u7b80\u5355\u7684\u5b57\u7b26\u4e32\u5904\u7406\u7684\u7ed3\u679c\uff0c\u5728\u5185\u6838\u548cDNS\u5c42\u9762\u5747\u65e0\u6b63\u5f0f\u610f\u4e49\u3002 \/etc\/resolv.conf\u6587\u4ef6\u91cc\u7684search\u6216domain\u6307\u4ee4\uff0c\u7528\u4e8e\u4ece\u672c\u673a\u8bbf\u95ee\u5916\u90e8\u77ed\u4e3b\u673a\u540d\u65f6\uff0c\u8865\u5145\u57df\u540d\u7684\u540e\u7f00\u90e8\u5206\u3002 hostname\u547d\u4ee4\uff1a \u901a\u8fc7gethostname(2)\u51fd\u6570\u8bfb\u5230\u672c\u673a\u7684\u4e3b\u673a\u540d\u3002\u5728glibc\u7684\u60c5\u51b5\u4e0b\uff0cgethostname(2)\u4e0d\u662fsyscall\u800c\u662f\u6807\u51c6\u5e93\u51fd\u6570\uff0c\u8f6c\u800c\u8c03\u7528uname(2) \uff08\u6211\u4e0d\u592a\u786e\u8ba4\u8c03\u7528\u7684\u662fglibc uname\u8fd8\u662fsyscall uname\uff09\u3002\u6839\u636e\u00a0https:\/\/github.com\/torvalds\/linux\/blob\/master\/Documentation\/sysctl\/kernel.txt#L285 \u7684\u8bf4\u6cd5\uff0c\/proc\/sys\/kernel\/hostname\u3001sysctl hostname \u548chostname\u547d\u4ee4\u5e94\u8be5\u662f\u529f\u80fd\u76f8\u540c\u7684\u3002 hostname -d \u6216\u8005 dnsdomainname \u547d\u4ee4\uff1a \u6839\u636e\/etc\/host.conf\u6307\u5b9a\u7684\u987a\u5e8f\uff0c\u5148\u5c1d\u8bd5\/etc\/hosts\u7136\u540e\u5c1d\u8bd5DNS\uff0c\u67e5\u627e\u81ea\u5df1\u7684\u4e3b\u673a\u540d\u3002\u5982\u679c\u80fd\u627e\u5230\uff0c\u628a\u7b2c\u4e00\u6bb5\u53bb\u6389\u4e4b\u540e\uff0c\u8f93\u51fa\u5269\u4e0b\u7684\u90e8\u5206\u3002\u8fd9\u4e2a\u8f93\u51fa\u4e0d\u5177\u5907\u5185\u6838\u610f\u4e49\uff0c\u53ea\u662f\u4e3b\u673a\u540d\u7ecf\u8fc7\u5b57\u7b26\u4e32\u5904\u7406\u4e4b\u540e\u7684\u6d3e\u751f\u7ed3\u679c hostname –fqdn\u547d\u4ee4\uff1a getaddrinfo()\u51fd\u6570\u67e5\u8be2\u5230\u7684ai_canonname strace\u89c2\u5bdf\u5230\u7684\u884c\u4e3a\u662f\u53bbDNS\u67e5\u4e00\u4e0b\u4e3b\u673a\u540d\uff08\u5982\u679c\u4e3b\u673a\u540d\u662f\u77ed\u5f62\u5f0f\uff0c\u6309\u9700\u8865\u5145\/etc\/resolv.conf\u91cc\u58f0\u660e\u7684search\/domain\u540e\u7f00\uff09\u5bf9\u5e94\u7684A\u8bb0\u5f55\uff0c\u53ea\u8981\u80fd\u67e5\u5230\uff0c\u5373\u4f7f\u8fd4\u56de\u7684IP\u5730\u5740\u4e0d\u662f\u672c\u673a\u7684\u4e5f\u4e0d\u7ba1\uff0c\u5c31\u4ee5\u8fd9\u4e2a\u4e3b\u673a\u540d\u4f5c\u4e3a\u7ed3\u679c\u3002 hostname –all-fqdn\u547d\u4ee4\uff1a \u62ff\u81ea\u5df1\u7684IP\u5730\u5740\u4eec\u5faa\u73af\u8c03\u7528getnameinfo()\u51fd\u6570\uff08strace\/tcpdump\u89c2\u5bdf\u5230\u7684\u5177\u4f53\u884c\u4e3a\u662f\u53bbDNS\u67e5PTR\u8bb0\u5f55\uff09\uff0c\u5e76\u5168\u90e8\u8f93\u51fa<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[43,10],"class_list":["post-554","post","type-post","status-publish","format-standard","hentry","category-default","tag-dns","tag-linux"],"_links":{"self":[{"href":"https:\/\/julyclyde.org\/index.php?rest_route=\/wp\/v2\/posts\/554","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/julyclyde.org\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/julyclyde.org\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/julyclyde.org\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/julyclyde.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=554"}],"version-history":[{"count":0,"href":"https:\/\/julyclyde.org\/index.php?rest_route=\/wp\/v2\/posts\/554\/revisions"}],"wp:attachment":[{"href":"https:\/\/julyclyde.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=554"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/julyclyde.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=554"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/julyclyde.org\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=554"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}