如何在Linux ECS中自定义配置DNS

{"value":"### \u6982\u8ff0\n\n- \u521b\u5efaECS\u65f6\uff0cDNS\u670d\u52a1\u5668\u91c7\u7528\u9ed8\u8ba4\u914d\u7f6e\uff0c\u4e0d\u9700\u8981\u989d\u5916\u914d\u7f6e\u3002\u82e5\u60a8\u7684DNS\u670d\u52a1\u5668\u65e0\u6cd5\u6ee1\u8db3\u4e1a\u52a1\u9700\u6c42\uff0c\u53ef\u53c2\u8003\u672c\u6587\u5728\u4e91\u670d\u52a1\u5668ECS\u4e2d\u81ea\u5b9a\u4e49\u914d\u7f6eDNS\u3002\n- Linux\u7cfb\u7edf\u5b58\u5728\u4e0d\u540c\u7684\u53d1\u884c\u7248\u672c\uff0c\u4e0d\u540c\u53d1\u884c\u7248\u672c\u4e2d\u81ea\u5b9a\u4e49\u914d\u7f6eDNS\u7684\u65b9\u6cd5\u4e0d\u540c\uff0c\u8bf7\u6839\u636e\u73b0\u573a\u73af\u5883\u5339\u914d\u4e0b\u5217\u53d1\u884c\u7248\u672c\u7684\u64cd\u4f5c\u547d\u4ee4\u3002\n\n---\n\n### Ubuntu 18\/20\/22\n\n\u76ee\u524d\u5e38\u89c1\u7684\u53d1\u884c\u7248\u5927\u591a\u4f7f\u7528\u7684\u662fNetworkManager\u670d\u52a1\u8fdb\u884c\u7f51\u7edc\u7ba1\u7406\uff0c\u4f46\u662f\u4eceUbuntu 18\u7cfb\u7edf\u5f00\u59cb\u7f51\u7edc\u670d\u52a1\u7c7b\u578b\u4e3asystemd-networkd\uff0c\u4ee5\u4e0b\u662f\u5728Ubuntu 18\u3001Ubuntu 20\u7cfb\u7edf\u4e2d\u81ea\u5b9a\u4e49\u914d\u7f6eDNS\u7684\u64cd\u4f5c\u6b65\u9aa4\uff1a\n\n**1.\u6267\u884c\u4ee5\u4e0b\u547d\u4ee4\uff0c\u7f16\u8f91\/etc\/cloud\/cloud.cfg\u914d\u7f6e\u6587\u4ef6\u3002**\n\n\u200b\tvim \/etc\/cloud\/cloud.cfg\n\na.\u6309i\u952e\u5207\u6362\u81f3\u7f16\u8f91\u6a21\u5f0f\uff0c\u5728\u6700\u540e\u4e00\u884c\u589e\u52a0\u4ee5\u4e0b\u914d\u7f6e\uff0c\u5173\u95edcloud-init\u4e2d\u7684\u81ea\u52a8\u914d\u7f6e\u7f51\u7edc\u7684\u53c2\u6570\uff0c\u907f\u514d\u7f51\u5361\u914d\u7f6e\u6587\u4ef6\u5185\u5bb9\u88ab\u8986\u76d6\n\n\u200b\tnetwork: {config: disabled}\n\nb.\u4fee\u6539\u5b8c\u6210\u540e\uff0c\u6309\u4e0bEsc\u952e\u540e\uff0c\u8f93\u5165:wq\u5e76\u56de\u8f66\u4ee5\u4fdd\u5b58\u5e76\u5173\u95ed\u914d\u7f6e\u6587\u4ef6\u3002\n\n**2.\u6267\u884c\u4ee5\u4e0b\u547d\u4ee4\uff0c\u7f16\u8f91\/etc\/netplan\/00-installer-config.yaml\uff08\u4ee5\u5b9e\u9645\u540d\u79f0\u4e3a\u51c6\uff09\u914d\u7f6e\u6587\u4ef6\u3002**\n\n\u200b\tvim \/etc\/netplan\/00-installer-config.yaml\n\na.\u6309i\u952e\u5207\u6362\u81f3\u7f16\u8f91\u6a21\u5f0f\uff0c\u5728\u6587\u4ef6\u5e95\u90e8\u6dfb\u52a0\u4ee5\u4e0b\u914d\u7f6e\uff0c\u81ea\u5b9a\u4e49\u914d\u7f6eDNS\u4fe1\u606f\u3002t\n\n\u200b\tnameservers:\n\u200b addresses:[$DNS1, $DNS2]\n\nb.\u4fee\u6539\u4e4b\u540e\u7684\u5185\u5bb9\u5982\u4e0b\u6240\u793a\u3002\n\n\u200b\tnetwork:\n\u200b version: 2\n\u200b ethernets:\n\u200b eth0:\n\u200b dhcp4: true\n\u200b match:\n\u200b macaddress: 00:16:3e:13:42:71\n\u200b set-name: eth0\n\u200b nameservers:\n\u200b addresses: [$DNS1, $DNS2]\n\n________________________________________________________________________________\n\n\t\u8bf4\u660e\uff1a\n\teth0\uff1a\u914d\u7f6e\u7684\u7f51\u5361\u540d\u79f0\uff0c\u672c\u6587\u4ee5eth0\u7f51\u5361\u4e3a\u4f8b\uff0c\u73b0\u573a\u4ee5\u5b9e\u9645\u73af\u5883\u4e3a\u51c6\u3002\n\tdhcp4\uff1aECS\u5b9e\u4f8b\u7684\u7f51\u7edc\u914d\u7f6e\u9ed8\u8ba4\u4e3aDHCP\u6a21\u5f0f\u3002\n\tmatch\uff1a\u914d\u7f6e\u7684MAC\u5730\u5740\uff0c\u672c\u6587\u4ee500:16:3e:13:42:71\u4e3a\u4f8b\uff0c\u73b0\u573a\u4ee5\u5b9e\u9645\u73af\u5883\u4e3a\u51c6\u3002\n\tnameservers\uff1a\u81ea\u5b9a\u4e49\u914d\u7f6e\u7684DNS\u4fe1\u606f\uff0c\u8bf7\u6309\u7167\u5b9e\u9645\u60c5\u51b5\u586b\u5199\u60a8\u81ea\u5b9a\u4e49\u7684DNS IP\u5730\u5740\u3002\n\nc.\u4fee\u6539\u5b8c\u6210\u540e\uff0c\u6309\u4e0bEsc\u952e\u540e\uff0c\u8f93\u5165:wq\u5e76\u56de\u8f66\u4ee5\u4fdd\u5b58\u5e76\u5173\u95ed\u914d\u7f6e\u6587\u4ef6\u3002\n\n**3.\u6267\u884c\u4ee5\u4e0b\u547d\u4ee4\uff0c\u5e94\u7528\u7f51\u5361\u914d\u7f6e\u3002**\n\n\u200b\tnetplan apply\n\n**4.\u6267\u884c\u4ee5\u4e0b\u547d\u4ee4\uff0c\u5efa\u7acb\/run\/systemd\/resolve\/resolv.conf\u6587\u4ef6\u7684\u8f6f\u8fde\u63a5\uff0c\u907f\u514d\u56e0\u4e3a\/etc\/resolv.conf\u914d\u7f6e\u6587\u4ef6\u5185\u5bb9\u66f4\u65b0\u800c\u5bfc\u81f4\u914d\u7f6e\u8fd8\u539f**\n\n\u200b\tln -snf \/run\/systemd\/resolve\/resolv.conf \/etc\/resolv.conf\n\n---\n\n### CentOS 6\/7\/8\n\n- CentOS\u7cfb\u7edf\u4e2d\uff0c\u7f51\u7edc\u914d\u7f6e\u548cDNS\u914d\u7f6e\u88ab\u4e24\u4e2a\u4e0d\u540c\u7684\u670d\u52a1\u8fdb\u884c\u7ba1\u7406\uff0c\u5206\u522b\u7ef4\u62a4\u6bd4\u8f83\u9ebb\u70e6\u3002\n\n\u7f51\u7edc\u670d\u52a1\uff1a\n\n- CentOS 6\u548cCentOS 7\u7cfb\u7edf\u4e2d\u7684\u7f51\u7edc\u670d\u52a1\u4e3aNetwork\u3002\n- CentOS 8\u4e2d\u7684\u7f51\u7edc\u670d\u52a1\u4e3aNetworkManager.service\u3002\n\nDNS\u670d\u52a1\uff1a\n\n- \u622a\u6b62\u5230CentOS 8\u7cfb\u7edf\uff0c\u76ee\u524d\u5747\u4f7f\u7528systemd-resolved\u4f5c\u4e3a\u7ba1\u7406DNS\u7684\u670d\u52a1\n\n\u4e3a\u4e86\u4fbf\u4e8e\u7ef4\u62a4\uff0c\u60a8\u53ef\u4ee5\u53c2\u8003\u4e0b\u5217\u6b65\u9aa4\uff0c\u7edf\u4e00\u901a\u8fc7\u7f51\u7edc\u670d\u52a1\u6765\u7ba1\u7406\u7f51\u7edc\u548cDNS\u914d\u7f6e\uff0c\u5373DNS\u4e5f\u914d\u7f6e\u5728\u7f51\u5361\u914d\u7f6e\u6587\u4ef6\u4e2d\u3002\n\n**1.\u8bf7\u53c2\u89c1Ubuntu 18\/20\/22\u7ae0\u8282\u7684\u6b65\u9aa41\uff0c\u5173\u95edcloud-init\u4e2d\u7684\u81ea\u52a8\u914d\u7f6e\u7f51\u7edc\u7684\u53c2\u6570\uff0c\u907f\u514d\u7f51\u5361\u914d\u7f6e\u6587\u4ef6\u5185\u5bb9\u88ab\u8986\u76d6\u3002**\n\n**2.\u6267\u884c\u4ee5\u4e0b\u547d\u4ee4\uff0c\u7f16\u8f91\/etc\/sysconfig\/network-scripts\/ifcfg-eth0\u914d\u7f6e\u6587\u4ef6\u3002**\n\n\u200b\tvim \/etc\/sysconfig\/network-scripts\/ifcfg-eth0\n\na.\u6309i\u952e\u5207\u6362\u81f3\u7f16\u8f91\u6a21\u5f0f\uff0c\u5728\u6587\u4ef6\u5e95\u90e8\u6dfb\u52a0\u4ee5\u4e0b\u914d\u7f6e\uff0c\u6dfb\u52a0\u4ee5\u4e0b\u81ea\u5b9a\u4e49DNS\u914d\u7f6e\u3002\n\n\u200b\tPEERDNS=no\n\u200b\tDNS1=[$DNS1]\n\u200b\tDNS2=[$DNS2]\n\n\u4fee\u6539\u4e4b\u540e\u7684\u5185\u5bb9\u5982\u4e0b\u6240\u793a\u3002\n\n\u200b\tBOOTPROTO=dhcp\n\u200b\tDEVICE=eth0\n\u200b\tONBOOT=yes\n\u200b\tSTARTMODE=auto\n\u200b\tTYPE=Ethernet\n\u200b\tUSERCTL=no\n\u200b\tPEERDNS=no\n\u200b\tDNS1=[$DNS1]\n\u200b\tDNS2=[$DNS2]\n\n---\n\n\t\u8bf4\u660e\uff1a\n\tPEERDNS=no\uff1a\u8868\u793a\u4e0d\u4f7f\u7528DHCP\u63d0\u4f9b\u7684DNS\u3002\n\tDNS1\u3001DNS2\uff1a\u81ea\u5b9a\u4e49\u914d\u7f6e\u7684DNS\u4fe1\u606f\uff0c\u8bf7\u6309\u7167\u5b9e\u9645\u60c5\u51b5\u586b\u5199\u60a8\u81ea\u5b9a\u4e49\u7684DNS IP\u5730\u5740\n\nb.\u4fee\u6539\u5b8c\u6210\u540e\uff0c\u6309\u4e0bEsc\u952e\u540e\uff0c\u8f93\u5165:wq\u5e76\u56de\u8f66\u4ee5\u4fdd\u5b58\u5e76\u5173\u95ed\u914d\u7f6e\u6587\u4ef6\u3002\n\n**3.\u7531\u4e8eCentOS 6\u3001CentOS 7\u3001CentOS 8\u7cfb\u7edf\u4e2d\u91cd\u542f\u7f51\u7edc\u670d\u52a1\u7684\u64cd\u4f5c\u547d\u4ee4\u4e0d\u540c\uff0c\u8bf7\u6839\u636e\u5177\u4f53\u7cfb\u7edf\uff0c\u9009\u62e9\u4ee5\u4e0b\u5bf9\u5e94\u7684\u6b65\u9aa4\uff0c\u91cd\u542f\u7f51\u7edc\u670d\u52a1\u3002**\n\n\tCentOS 6\uff1aservice network restart\u3002\n\tCentOS 7\uff1asystemctl restart network\u3002\n\tCentOS 8\uff1a\n\t\u91cd\u65b0\u52a0\u8f7d\u6240\u6709\u7f51\u5361\u914d\u7f6enmcli c reload\u3002\n\t\u6fc0\u6d3b\u7f51\u5361nmcli d connect eth0\u3002\n\n\n---\n\n### Debian 9\/Debian 10\/Ubuntu 16\n\nDebian9\u3001Debian 10\u548cUbuntu 16\u7cfb\u7edf\u4f7f\u7528\u7684\u7f51\u7edc\u670d\u52a1\u76f8\u540c\u4e3anetworking\uff0c\u4ee5\u4e0b\u662f\u5728Debian 9\u3001Debian 10\u548cUbuntu 16\u7cfb\u7edf\u4e2d\u81ea\u5b9a\u4e49\u914d\u7f6eDNS\u7684\u64cd\u4f5c\u6b65\u9aa4:\n\n**1.\u6267\u884c\u4ee5\u4e0b\u547d\u4ee4\uff0c\u7f16\u8f91\/etc\/network\/interfaces\u7f51\u5361\u914d\u7f6e\u6587\u4ef6**\n\n\u200b\tvim \/etc\/network\/interfaces\n\na.\u6309i\u952e\u5207\u6362\u81f3\u7f16\u8f91\u6a21\u5f0f\uff0c\u5728\u6587\u4ef6\u5e95\u90e8\u6dfb\u52a0\u4ee5\u4e0b\u914d\u7f6e\uff0c\u81ea\u5b9a\u4e49\u914d\u7f6eDNS\u4fe1\u606f\u3002\n\n\u200b\tdns-nameservers [$DNS1 $DNS2]\n\nb.\u4fee\u6539\u4e4b\u540e\u7684\u5185\u5bb9\u5982\u4e0b\u6240\u793a\u3002\n\n\u200b\tauto lo\n\u200b\tiface lo inet loopback\n\u200b\tauto eth0\n\u200b\tiface eth0 inet dhcp\n\n\tdns-nameservers [$DNS1 $DNS2]\n\n---\n\n\t\u8bf4\u660e\uff1a\n\tauto eth0\uff1a\u914d\u7f6e\u7684\u7f51\u5361\u540d\u79f0\uff0c\u672c\u6587\u4ee5eth0\u7f51\u5361\u4e3a\u4f8b\uff0c\u73b0\u573a\u4ee5\u5b9e\u9645\u73af\u5883\u4e3a\u51c6\u3002\n\tiface eth0 inet dhcp\uff1aECS\u5b9e\u4f8b\u7684\u7f51\u7edc\u914d\u7f6e\u9ed8\u8ba4\u4e3aDHCP\u6a21\u5f0f\u3002\n\tdns-nameservers\uff1a\u4e3a\u81ea\u5b9a\u4e49\u914d\u7f6e\u7684DNS\u4fe1\u606f\u3002\n\nc.\u4fee\u6539\u5b8c\u6210\u540e\uff0c\u6309\u4e0bEsc\u952e\u540e\uff0c\u8f93\u5165:wq\u5e76\u56de\u8f66\u4ee5\u4fdd\u5b58\u5e76\u5173\u95ed\u914d\u7f6e\u6587\u4ef6\u3002\n\n**2.\u7136\u540e\u6267\u884c\u4ee5\u4e0b\u547d\u4ee4\uff0c\u91cd\u542f\u7f51\u7edc\u670d\u52a1\u3002**\n\n\tsystemctl restart networking.service\n\n### \u6587\u4ef6\u9501\u5b9a\u65b9\u5f0f\n\n\u914d\u7f6e\u5b8c\u6210DNS\u540e\uff0c\u53ef\u901a\u8fc7\u91cd\u542f\u670d\u52a1\u5668\u7684\u65b9\u5f0f\u68c0\u6d4b\u662f\u5426\u914d\u7f6e\u6210\u529f\u3002\u7531\u4e8e\u90e8\u5206\u955c\u50cf\u4e0a\u5b89\u88c5\u4e86\u9ad8\u7248\u672c\u7684cloud-init\uff0c\u91cd\u542f\u670d\u52a1\u5668cloud-init\u4f1a\u81ea\u52a8\u91cd\u7f6e\u7f51\u7edc\u914d\u7f6e\uff0c\u60a8\u53ef\u4ee5\u53c2\u8003\u4ee5\u4e0b\u65b9\u5f0f\u9501\u5b9a\u914d\u7f6e\u6587\u4ef6\uff0c\u907f\u514d\u56e0\u4e3a\u91cd\u542f\u7cfb\u7edf\u800c\u5bfc\u81f4\u914d\u7f6e\u6587\u4ef6\u5185\u5bb9\u91cd\u7f6e\u3002\n\n- \u9501\u5b9a\u914d\u7f6e\u6587\u4ef6\uff1a\n \u4ee5\/etc\/resolv.conf\u6587\u4ef6\u4e3a\u4f8b\uff0c\u6267\u884c\u4ee5\u4e0b\u547d\u4ee4\uff0c\u5c06\u8be5\u6587\u4ef6\u9501\u5b9a\u3002\n\n \tchattr -i \/etc\/resolv.conf\n\n\n- \u89e3\u9501\u914d\u7f6e\u6587\u4ef6\n\n - \u5982\u679c\u60a8\u9700\u8981\u518d\u6b21\u5bf9\u9501\u5b9a\u6587\u4ef6\u8fdb\u884c\u4fee\u6539\uff0c\u5219\u6267\u884c\u4ee5\u4e0b\u547d\u4ee4\uff0c\u89e3\u9501\u6587\u4ef6\u3002\n\n \tchattr -i \/etc\/resolv.conf\n\n - \u6267\u884c\u4ee5\u4e0b\u547d\u4ee4\uff0c\u786e\u8ba4\u57df\u540d\u53ef\u4ee5\u6b63\u5e38\u89e3\u6790\n\n \tnslookup [$Domain]"}