{"id":5861,"date":"2026-06-27T22:50:37","date_gmt":"2026-06-27T13:50:37","guid":{"rendered":"https:\/\/eternalsphere.net\/echoes\/?p=5861"},"modified":"2026-06-27T22:50:37","modified_gmt":"2026-06-27T13:50:37","slug":"w4zgukx9apwlpid","status":"publish","type":"post","link":"https:\/\/eternalsphere.net\/echoes\/index.php\/2026\/06\/27\/w4zgukx9apwlpid\/","title":{"rendered":"\u514b\u9686\u6811\u8393\u6d3e\u7cfb\u7edf\u540e\uff0c\u5982\u4f55\u62c6\u5206\u4e24\u53f0\u8bbe\u5907\u7684\u7cfb\u7edf\u8eab\u4efd"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">\u80cc\u666f<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e00\u5957\u5df2\u7ecf\u914d\u7f6e\u597d\u7684\u6811\u8393\u6d3e\u7cfb\u7edf\u88ab\u5b8c\u6574\u590d\u5236\u5230\u53e6\u4e00\u5f20\u5b58\u50a8\u5361\u4e0a\uff0c\u968f\u540e\u5206\u522b\u5728\u4e24\u53f0\u6811\u8393\u6d3e\u8bbe\u5907\u4e0a\u542f\u52a8\u3002\u8fd9\u6837\u505a\u53ef\u4ee5\u8282\u7701\u5927\u91cf\u91cd\u590d\u914d\u7f6e\u65f6\u95f4\uff0c\u5c24\u5176\u9002\u5408\u7cfb\u7edf\u4e2d\u5df2\u7ecf\u9884\u5148\u914d\u7f6e\u597d\u8fdc\u7a0b\u8bbf\u95ee\u3001\u7f51\u7edc\u811a\u672c\u3001\u4ee3\u7406\u670d\u52a1\u3001Web \u670d\u52a1\u548c\u82e5\u5e72\u5e38\u9a7b\u670d\u52a1\u7684\u60c5\u51b5\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e0d\u8fc7\uff0c\u5b8c\u6574\u514b\u9686\u7cfb\u7edf\u4e5f\u4f1a\u5e26\u6765\u4e00\u4e2a\u660e\u663e\u95ee\u9898\uff1a\u4e24\u53f0\u8bbe\u5907\u867d\u7136\u786c\u4ef6\u4e0d\u540c\uff0c\u4f46\u7cfb\u7edf\u5185\u90e8\u8eab\u4efd\u53ef\u80fd\u5b8c\u5168\u76f8\u540c\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5982\u679c\u4e0d\u5904\u7406\uff0c\u540e\u7eed\u53ef\u80fd\u51fa\u73b0\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\u4e3b\u673a\u540d\u91cd\u590d\nmachine-id \u91cd\u590d\nSSH Host Key \u91cd\u590d\n\u8fdc\u7a0b\u8bbf\u95ee\u5165\u53e3\u6df7\u4e71\n\u5185\u7f51\u7a7f\u900f\u914d\u7f6e\u51b2\u7a81\n\u4ee3\u7406\u8282\u70b9\u8eab\u4efd\u6df7\u6dc6\n\u65e5\u5fd7\u4e0e\u7cfb\u7edf\u670d\u52a1\u8bc6\u522b\u5f02\u5e38\n\u5c40\u57df\u7f51\u8bbe\u5907\u8bc6\u522b\u6df7\u4e71\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u56e0\u6b64\uff0c\u5728\u4e24\u53f0\u8bbe\u5907\u6b63\u5f0f\u957f\u671f\u8fd0\u884c\u524d\uff0c\u9700\u8981\u5148\u628a\u7cfb\u7edf\u8eab\u4efd\u62c6\u5206\u5f00\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u514b\u9686\u7cfb\u7edf\u540e\u9700\u8981\u5904\u7406\u54ea\u4e9b\u8eab\u4efd\u4fe1\u606f<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u514b\u9686\u7cfb\u7edf\u540e\uff0c\u81f3\u5c11\u9700\u8981\u68c0\u67e5\u548c\u5904\u7406\u4ee5\u4e0b\u5185\u5bb9\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>hostname\n\/etc\/hostname\n\/etc\/hosts\ncloud-init \u4e3b\u673a\u540d\u914d\u7f6e\n\/etc\/machine-id\n\/var\/lib\/dbus\/machine-id\nSSH Host Key\n\u8fdc\u7a0b\u8bbf\u95ee\u670d\u52a1\u914d\u7f6e\n\u5185\u7f51\u7a7f\u900f\u670d\u52a1\u914d\u7f6e\n\u4ee3\u7406\u670d\u52a1\u8282\u70b9\u914d\u7f6e\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u5176\u4e2d\uff0c\u6700\u57fa\u7840\u7684\u4e09\u9879\u662f\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>hostname\nmachine-id\nSSH Host Key\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u8fd9\u4e09\u9879\u5206\u522b\u5bf9\u5e94\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\u8bbe\u5907\u540d\u79f0\n\u7cfb\u7edf\u8eab\u4efd\nSSH \u670d\u52a1\u5668\u8eab\u4efd\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u53ea\u6539\u4e3b\u673a\u540d\u662f\u4e0d\u591f\u7684\u3002<br>\u5982\u679c machine-id \u548c SSH Host Key \u4ecd\u7136\u76f8\u540c\uff0c\u4e24\u53f0\u8bbe\u5907\u5728\u7cfb\u7edf\u5c42\u9762\u548c\u5b89\u5168\u8eab\u4efd\u5c42\u9762\u4ecd\u7136\u5e26\u6709\u514b\u9686\u75d5\u8ff9\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u7b2c\u4e00\u6b21\u53ea\u6539\u4e3b\u673a\u540d\u4e3a\u4ec0\u4e48\u5931\u8d25<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e00\u5f00\u59cb\u4f7f\u7528\u4e86\u5e38\u89c4\u65b9\u5f0f\u4fee\u6539\u4e3b\u673a\u540d\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>hostnamectl set-hostname \u65b0\u4e3b\u673a\u540d\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u5e76\u540c\u6b65\u4fee\u6539\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\/etc\/hostname\n\/etc\/hosts\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u5f53\u65f6\u770b\u8d77\u6765\u5df2\u7ecf\u6210\u529f\uff0c\u4f46\u91cd\u542f\u540e\u4e3b\u673a\u540d\u53c8\u6062\u590d\u6210\u65e7\u503c\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u8fd9\u8bf4\u660e\u95ee\u9898\u5e76\u4e0d\u5728 <code>hostnamectl<\/code> \u672c\u8eab\uff0c\u800c\u662f\u7cfb\u7edf\u542f\u52a8\u8fc7\u7a0b\u4e2d\u8fd8\u6709\u5176\u4ed6\u7ec4\u4ef6\u5728\u8986\u76d6\u4e3b\u673a\u540d\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u8fdb\u4e00\u6b65\u68c0\u67e5\u53d1\u73b0\uff0c\u8fd9\u5957\u7cfb\u7edf\u542f\u7528\u4e86 cloud-init\u3002<br>\u5728\u8be5\u7c7b\u7cfb\u7edf\u4e2d\uff0c\u4e3b\u673a\u540d\u53ef\u80fd\u4e0d\u662f\u53ea\u7531 <code>\/etc\/hostname<\/code> \u51b3\u5b9a\uff0c\u800c\u662f\u8fd8\u4f1a\u53d7\u5230\u542f\u52a8\u5206\u533a\u4e2d\u7684 cloud-init \u914d\u7f6e\u5f71\u54cd\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5173\u952e\u4f4d\u7f6e\u5305\u62ec\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\/boot\/firmware\/user-data\n\/etc\/cloud\/cloud.cfg\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u5982\u679c\u542f\u52a8\u5206\u533a\u7684 user-data \u4e2d\u4ecd\u7136\u5199\u7740\u65e7\u4e3b\u673a\u540d\uff0c\u540c\u65f6 cloud-init \u6ca1\u6709\u8bbe\u7f6e\u4e3a\u4fdd\u7559\u5f53\u524d\u4e3b\u673a\u540d\uff0c\u90a3\u4e48\u91cd\u542f\u540e\u7cfb\u7edf\u53ef\u80fd\u518d\u6b21\u628a\u4e3b\u673a\u540d\u6539\u56de\u65e7\u503c\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u56e0\u6b64\uff0c\u6b63\u786e\u505a\u6cd5\u4e0d\u662f\u53ea\u6539 <code>\/etc\/hostname<\/code>\uff0c\u800c\u662f\u8981\u540c\u65f6\u5904\u7406 cloud-init \u7684\u6e90\u5934\u914d\u7f6e\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u6b63\u786e\u4fee\u6539\u7b2c\u4e00\u53f0\u8bbe\u5907\u4e3b\u673a\u540d<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u5047\u8bbe\u7b2c\u4e00\u53f0\u8bbe\u5907\u7684\u65b0\u4e3b\u673a\u540d\u4e3a\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\u8bbe\u5907A\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u5728 root \u7528\u6237\u4e0b\uff0c\u53ef\u4ee5\u4e00\u6b21\u6027\u6267\u884c\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>cp -a \/boot\/firmware\/user-data \/boot\/firmware\/user-data.bak.$(date +%F-%H%M%S)\ncp -a \/etc\/cloud\/cloud.cfg \/etc\/cloud\/cloud.cfg.bak.$(date +%F-%H%M%S)\ncp -a \/etc\/hostname \/etc\/hostname.bak.$(date +%F-%H%M%S)\ncp -a \/etc\/hosts \/etc\/hosts.bak.$(date +%F-%H%M%S)\n\nsed -i -E 's\/^hostname:&#091;&#091;:space:]]*.*\/hostname: \u8bbe\u5907A\/' \/boot\/firmware\/user-data\nsed -i -E 's\/^preserve_hostname:&#091;&#091;:space:]]*.*\/preserve_hostname: true\/' \/etc\/cloud\/cloud.cfg\n\necho \u8bbe\u5907A &gt; \/etc\/hostname\nhostnamectl set-hostname \u8bbe\u5907A\n\nif grep -qE '^127\\.0\\.1\\.1&#091;&#091;:space:]]+' \/etc\/hosts; then\n  sed -i -E 's\/^127\\.0\\.1\\.1&#091;&#091;:space:]].*\/127.0.1.1 \u8bbe\u5907A\/' \/etc\/hosts\nelse\n  echo '127.0.1.1 \u8bbe\u5907A' &gt;&gt; \/etc\/hosts\nfi\n\nhostname\ncat \/etc\/hostname\nhostnamectl\ngrep -nE 'preserve_hostname|hostname:' \/etc\/cloud\/cloud.cfg \/boot\/firmware\/user-data\ngrep -nE '127\\.0\\.1\\.1' \/etc\/hosts\n\nreboot\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u91cd\u542f\u540e\u786e\u8ba4\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>hostname\ncat \/etc\/hostname\nhostnamectl\ngrep -nE 'preserve_hostname|hostname:' \/etc\/cloud\/cloud.cfg \/boot\/firmware\/user-data\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u76ee\u6807\u72b6\u6001\u662f\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>hostname \u663e\u793a\u4e3a\u8bbe\u5907A\n\/etc\/hostname \u663e\u793a\u4e3a\u8bbe\u5907A\nhostnamectl \u4e2d Static hostname \u4e3a\u8bbe\u5907A\n\/boot\/firmware\/user-data \u4e2d hostname \u4e3a\u8bbe\u5907A\n\/etc\/cloud\/cloud.cfg \u4e2d preserve_hostname \u4e3a true\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u8fd9\u6837\uff0c\u4e3b\u673a\u540d\u624d\u7b97\u771f\u6b63\u6301\u4e45\u4fee\u6539\u6210\u529f\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u91cd\u65b0\u751f\u6210 machine-id<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e3b\u673a\u540d\u5904\u7406\u5b8c\u6210\u540e\uff0c\u9700\u8981\u91cd\u65b0\u751f\u6210 machine-id\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">machine-id \u662f systemd \u4f53\u7cfb\u4e2d\u7684\u7cfb\u7edf\u8eab\u4efd\u6807\u8bc6\u3002<br>\u5982\u679c\u4e24\u53f0\u514b\u9686\u8bbe\u5907\u4fdd\u7559\u76f8\u540c machine-id\uff0c\u53ef\u80fd\u5bfc\u81f4 systemd\u3001D-Bus\u3001journald\u3001DHCP \u76f8\u5173\u8eab\u4efd\u3001\u65e5\u5fd7\u8bc6\u522b\u7b49\u51fa\u73b0\u6df7\u4e71\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5728 root \u7528\u6237\u4e0b\u6267\u884c\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>cp -a \/etc\/machine-id \/root\/machine-id.bak.$(date +%F-%H%M%S) 2&gt;\/dev\/null || true\nrm -f \/etc\/machine-id \/var\/lib\/dbus\/machine-id\nsystemd-machine-id-setup\nln -sf \/etc\/machine-id \/var\/lib\/dbus\/machine-id\ncat \/etc\/machine-id\nreboot\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u91cd\u542f\u540e\u786e\u8ba4\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>cat \/etc\/machine-id\nls -l \/var\/lib\/dbus\/machine-id\nhostnamectl\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u76ee\u6807\u72b6\u6001\u662f\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\/etc\/machine-id \u5df2\u751f\u6210\u65b0\u7684\u503c\n\/var\/lib\/dbus\/machine-id \u6307\u5411 \/etc\/machine-id\nhostnamectl \u4e2d\u663e\u793a\u65b0\u7684 Machine ID\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u6ce8\u610f\uff0c\u4e24\u53f0\u514b\u9686\u8bbe\u5907\u7684 machine-id \u5fc5\u987b\u4e0d\u540c\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u91cd\u65b0\u751f\u6210 SSH Host Key<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">SSH Host Key \u662f SSH \u670d\u52a1\u5668\u81ea\u5df1\u7684\u8eab\u4efd\u5bc6\u94a5\u3002<br>\u5b83\u4e0d\u662f\u7528\u6237\u767b\u5f55\u7528\u7684\u516c\u94a5\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">SSH Host Key \u901a\u5e38\u4f4d\u4e8e\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\/etc\/ssh\/ssh_host_*\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u7528\u6237\u767b\u5f55\u7528\u7684\u6388\u6743\u516c\u94a5\u901a\u5e38\u4f4d\u4e8e\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\/root\/.ssh\/authorized_keys\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u6216\u8005\u666e\u901a\u7528\u6237\u7684\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>~\/.ssh\/authorized_keys\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u56e0\u6b64\uff0c\u91cd\u65b0\u751f\u6210 SSH Host Key \u4e0d\u4f1a\u5220\u9664\u5df2\u914d\u7f6e\u597d\u7684\u767b\u5f55\u516c\u94a5\uff0c\u4e5f\u4e0d\u4f1a\u7834\u574f\u516c\u94a5\u767b\u5f55\u3002<br>\u5b83\u53ea\u4f1a\u8ba9\u5ba2\u6237\u7aef\u5728\u4e0b\u6b21\u8fde\u63a5\u65f6\u53d1\u73b0\u201c\u670d\u52a1\u5668\u8eab\u4efd\u53d8\u4e86\u201d\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5728 root \u7528\u6237\u4e0b\u6267\u884c\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>backup=\"\/root\/ssh-hostkey-backup-$(date +%F-%H%M%S)\"\nmkdir -p \"$backup\"\ncp -a \/etc\/ssh\/ssh_host_* \"$backup\"\/ 2&gt;\/dev\/null || true\nrm -f \/etc\/ssh\/ssh_host_*\nssh-keygen -t rsa -b 8192 -f \/etc\/ssh\/ssh_host_rsa_key -N ''\nssh-keygen -t ed25519 -f \/etc\/ssh\/ssh_host_ed25519_key -N ''\nchmod 600 \/etc\/ssh\/ssh_host_*_key\nchmod 644 \/etc\/ssh\/ssh_host_*_key.pub\nsystemctl restart ssh\nls -l \/etc\/ssh\/ssh_host_*\nsystemctl status ssh --no-pager\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u5982\u679c\u5ba2\u6237\u7aef\u4e0b\u6b21\u8fde\u63a5\u65f6\u63d0\u793a\u670d\u52a1\u5668\u8eab\u4efd\u53d8\u5316\uff0c\u8fd9\u662f\u6b63\u5e38\u73b0\u8c61\u3002<br>\u5728\u5ba2\u6237\u7aef\u5220\u9664\u65e7\u7684 known_hosts \u8bb0\u5f55\u540e\u91cd\u65b0\u8fde\u63a5\u5373\u53ef\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u793a\u4f8b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>ssh-keygen -R \"&#091;\u8fdc\u7a0b\u5165\u53e3\u57df\u540d]:\u8fdc\u7a0b\u7aef\u53e3\"\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u8fd9\u91cc\u7684\u57df\u540d\u548c\u7aef\u53e3\u5e94\u66ff\u6362\u4e3a\u5b9e\u9645\u8fde\u63a5\u5165\u53e3\u3002\u516c\u5f00\u6587\u7ae0\u4e2d\u4e0d\u5e94\u5199\u51fa\u771f\u5b9e\u503c\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u7b2c\u4e8c\u53f0\u8bbe\u5907\u7684\u5904\u7406<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u7b2c\u4e8c\u53f0\u8bbe\u5907\u4e5f\u662f\u4ece\u540c\u4e00\u4efd\u7cfb\u7edf\u590d\u5236\u51fa\u6765\u7684\uff0c\u6240\u4ee5\u5904\u7406\u903b\u8f91\u5b8c\u5168\u76f8\u540c\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5047\u8bbe\u7b2c\u4e8c\u53f0\u8bbe\u5907\u7684\u65b0\u4e3b\u673a\u540d\u4e3a\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\u8bbe\u5907B\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">root \u7528\u6237\u4e0b\u53ef\u4ee5\u4e00\u6b21\u6027\u6267\u884c\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>cp -a \/boot\/firmware\/user-data \/boot\/firmware\/user-data.bak.$(date +%F-%H%M%S)\ncp -a \/etc\/cloud\/cloud.cfg \/etc\/cloud\/cloud.cfg.bak.$(date +%F-%H%M%S)\ncp -a \/etc\/hostname \/etc\/hostname.bak.$(date +%F-%H%M%S)\ncp -a \/etc\/hosts \/etc\/hosts.bak.$(date +%F-%H%M%S)\ncp -a \/etc\/machine-id \/root\/machine-id.bak.$(date +%F-%H%M%S) 2&gt;\/dev\/null || true\n\nsed -i -E 's\/^hostname:&#091;&#091;:space:]]*.*\/hostname: \u8bbe\u5907B\/' \/boot\/firmware\/user-data\nsed -i -E 's\/^preserve_hostname:&#091;&#091;:space:]]*.*\/preserve_hostname: true\/' \/etc\/cloud\/cloud.cfg\n\necho \u8bbe\u5907B &gt; \/etc\/hostname\nhostnamectl set-hostname \u8bbe\u5907B\n\nif grep -qE '^127\\.0\\.1\\.1&#091;&#091;:space:]]+' \/etc\/hosts; then\n  sed -i -E 's\/^127\\.0\\.1\\.1&#091;&#091;:space:]].*\/127.0.1.1 \u8bbe\u5907B\/' \/etc\/hosts\nelse\n  echo '127.0.1.1 \u8bbe\u5907B' &gt;&gt; \/etc\/hosts\nfi\n\nrm -f \/etc\/machine-id \/var\/lib\/dbus\/machine-id\nsystemd-machine-id-setup\nln -sf \/etc\/machine-id \/var\/lib\/dbus\/machine-id\n\nbackup=\"\/root\/ssh-hostkey-backup-$(date +%F-%H%M%S)\"\nmkdir -p \"$backup\"\ncp -a \/etc\/ssh\/ssh_host_* \"$backup\"\/ 2&gt;\/dev\/null || true\nrm -f \/etc\/ssh\/ssh_host_*\nssh-keygen -t rsa -b 8192 -f \/etc\/ssh\/ssh_host_rsa_key -N ''\nssh-keygen -t ed25519 -f \/etc\/ssh\/ssh_host_ed25519_key -N ''\nchmod 600 \/etc\/ssh\/ssh_host_*_key\nchmod 644 \/etc\/ssh\/ssh_host_*_key.pub\n\nhostname\ncat \/etc\/hostname\nhostnamectl\ncat \/etc\/machine-id\nls -l \/var\/lib\/dbus\/machine-id\nls -l \/etc\/ssh\/ssh_host_*\ngrep -nE 'preserve_hostname|hostname:' \/etc\/cloud\/cloud.cfg \/boot\/firmware\/user-data\ngrep -nE '127\\.0\\.1\\.1' \/etc\/hosts\n\nreboot\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u91cd\u542f\u540e\u786e\u8ba4\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>hostname\ncat \/etc\/hostname\nhostnamectl\ncat \/etc\/machine-id\nls -l \/var\/lib\/dbus\/machine-id\nls -l \/etc\/ssh\/ssh_host_*\ngrep -nE 'preserve_hostname|hostname:' \/etc\/cloud\/cloud.cfg \/boot\/firmware\/user-data\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e24\u53f0\u8bbe\u5907\u6700\u7ec8\u5e94\u6ee1\u8db3\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\u4e3b\u673a\u540d\u4e0d\u540c\nmachine-id \u4e0d\u540c\nSSH Host Key \u4e0d\u540c\n\u8fdc\u7a0b\u8bbf\u95ee\u5165\u53e3\u4e0d\u540c\n\u4ee3\u7406\u8282\u70b9\u8eab\u4efd\u4e0d\u540c\n<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">\u7f51\u7edc\u4e0e\u670d\u52a1\u5165\u53e3\u7684\u6ce8\u610f\u4e8b\u9879<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e24\u53f0\u8bbe\u5907\u672c\u673a\u76d1\u542c\u76f8\u540c\u7aef\u53e3\u5e76\u4e0d\u4e00\u5b9a\u51b2\u7a81\u3002<br>\u56e0\u4e3a\u5b83\u4eec\u4f4d\u4e8e\u4e0d\u540c\u8bbe\u5907\u4e0a\uff0c\u5404\u81ea\u62e5\u6709\u81ea\u5df1\u7684\u7f51\u7edc\u63a5\u53e3\u548c\u672c\u673a\u7aef\u53e3\u7a7a\u95f4\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u771f\u6b63\u5bb9\u6613\u51b2\u7a81\u7684\u662f\u8fdc\u7a0b\u5165\u53e3\u5c42\u9762\u7684\u914d\u7f6e\uff0c\u4f8b\u5982\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\u5185\u7f51\u7a7f\u900f\u4ee3\u7406\u540d\n\u8fdc\u7a0b\u7aef\u53e3\n\u8fdc\u7a0b\u57df\u540d\n\u5b50\u57df\u540d\n\u4ee3\u7406\u8282\u70b9 ID\n\u5ba2\u6237\u7aef\u8282\u70b9\u540d\u79f0\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u5982\u679c\u4e24\u53f0\u8bbe\u5907\u90fd\u8fde\u63a5\u5230\u540c\u4e00\u4e2a\u8fdc\u7a0b\u4e2d\u8f6c\u670d\u52a1\uff0c\u5c31\u5fc5\u987b\u907f\u514d\u4f7f\u7528\u76f8\u540c\u7684\u4ee3\u7406\u540d\u3001\u8fdc\u7a0b\u7aef\u53e3\u6216\u57df\u540d\u5165\u53e3\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u516c\u5f00\u8bb0\u5f55\u4e2d\u4e0d\u5e94\u5199\u51fa\u771f\u5b9e\u670d\u52a1\u540d\u3001\u771f\u5b9e\u7aef\u53e3\u3001\u771f\u5b9e\u57df\u540d\u6216\u771f\u5b9e\u8282\u70b9\u540d\u3002<br>\u53ef\u4ee5\u7edf\u4e00\u5199\u6210\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\u8fdc\u7a0b\u8bbf\u95ee\u5165\u53e3A\n\u8fdc\u7a0b\u8bbf\u95ee\u5165\u53e3B\n\u4ee3\u7406\u8282\u70b9A\n\u4ee3\u7406\u8282\u70b9B\n\u5185\u7f51\u7a7f\u900f\u89c4\u5219A\n\u5185\u7f51\u7a7f\u900f\u89c4\u5219B\n<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">Wi-Fi \u4e0e DHCP \u7684\u6574\u7406<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u5728\u5176\u4e2d\u4e00\u53f0\u8bbe\u5907\u4e0a\uff0cWi-Fi \u662f\u901a\u8fc7\u81ea\u5b9a\u4e49\u811a\u672c\u624b\u52a8\u8fde\u63a5\u7684\u3002<br>\u8be5\u811a\u672c\u5927\u81f4\u4f1a\u5b8c\u6210\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\u62c9\u8d77\u65e0\u7ebf\u7f51\u5361\n\u626b\u63cf Wi-Fi\n\u9009\u62e9 SSID\n\u8f93\u5165\u5bc6\u7801\n\u751f\u6210\u4e34\u65f6\u65e0\u7ebf\u8ba4\u8bc1\u914d\u7f6e\n\u542f\u52a8\u65e0\u7ebf\u8fde\u63a5\u8fdb\u7a0b\n\u542f\u52a8 DHCP \u5ba2\u6237\u7aef\n\u8c03\u6574\u9ed8\u8ba4\u8def\u7531\u4f18\u5148\u7ea7\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u66fe\u7ecf\u89c2\u5bdf\u5230\u65e0\u7ebf\u7f51\u5361\u4e0a\u540c\u65f6\u5b58\u5728\u4e24\u4e2a IPv4 \u5730\u5740\u3002<br>\u8fd9\u901a\u5e38\u610f\u5473\u7740\u4e24\u4e2a DHCP \u5ba2\u6237\u7aef\u540c\u65f6\u7ba1\u7406\u4e86\u540c\u4e00\u4e2a\u63a5\u53e3\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5982\u679c\u540e\u7eed\u91cd\u65b0\u8fde\u63a5\u540e\u53ea\u5269\u4e00\u4e2a IPv4 \u5730\u5740\uff0c\u5e76\u4e14\u9ed8\u8ba4\u8def\u7531\u6b63\u5e38\uff0c\u5219\u53ef\u4ee5\u6682\u65f6\u4e0d\u5904\u7406\u3002<br>\u5982\u679c\u672a\u6765\u8981\u6574\u7406\uff0c\u5e94\u8ba9\u540c\u4e00\u4e2a\u7f51\u7edc\u63a5\u53e3\u53ea\u7531\u4e00\u4e2a DHCP \u5ba2\u6237\u7aef\u7ba1\u7406\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u64cd\u4f5c\u4e60\u60ef<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u672c\u6b21\u6574\u7406\u8fd8\u5f62\u6210\u4e86\u51e0\u4e2a\u5b9e\u8df5\u4e60\u60ef\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>root \u7528\u6237\u4e0b\u4e0d\u5199 sudo\n\u9700\u8981\u624b\u52a8\u7f16\u8f91\u65f6\u4f7f\u7528 Vim\n\u4e0d\u8981\u628a\u5f53\u524d\u751f\u6548\u548c\u91cd\u542f\u540e\u6301\u4e45\u751f\u6548\u6df7\u4e3a\u4e00\u8c08\n\u514b\u9686\u7cfb\u7edf\u540e\u4e0d\u8981\u53ea\u68c0\u67e5\u670d\u52a1\u662f\u5426\u80fd\u8dd1\uff0c\u8fd8\u8981\u68c0\u67e5\u7cfb\u7edf\u8eab\u4efd\u662f\u5426\u5df2\u7ecf\u62c6\u5206\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u5e38\u7528\u786e\u8ba4\u547d\u4ee4\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>hostname\ncat \/etc\/hostname\nhostnamectl\ncat \/etc\/machine-id\nls -l \/var\/lib\/dbus\/machine-id\nls -l \/etc\/ssh\/ssh_host_*\ngrep -nE 'preserve_hostname|hostname:' \/etc\/cloud\/cloud.cfg \/boot\/firmware\/user-data\n<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">\u603b\u7ed3<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u514b\u9686\u6811\u8393\u6d3e\u7cfb\u7edf\u540e\uff0c\u4e0d\u80fd\u53ea\u6539\u4e3b\u673a\u540d\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u66f4\u5b8c\u6574\u7684\u5904\u7406\u6d41\u7a0b\u5e94\u8be5\u662f\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\u4fee\u6539 cloud-init \u4e3b\u673a\u540d\u6e90\u5934\n\u7981\u6b62 cloud-init \u540e\u7eed\u8986\u76d6\u4e3b\u673a\u540d\n\u4fee\u6539 \/etc\/hostname\n\u4fee\u6539 \/etc\/hosts\n\u91cd\u65b0\u751f\u6210 machine-id\n\u91cd\u65b0\u751f\u6210 SSH Host Key\n\u533a\u5206\u8fdc\u7a0b\u8bbf\u95ee\u5165\u53e3\n\u533a\u5206\u5185\u7f51\u7a7f\u900f\u914d\u7f6e\n\u533a\u5206\u4ee3\u7406\u8282\u70b9\u914d\u7f6e\n<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u5176\u4e2d\u6700\u5bb9\u6613\u5ffd\u7565\u7684\u662f cloud-init\u3002<br>\u5728 Ubuntu Raspberry Pi \u7cfb\u7edf\u4e0a\uff0c\u5982\u679c\u542f\u52a8\u5206\u533a\u7684 user-data \u91cc\u4ecd\u7136\u5199\u7740\u65e7\u4e3b\u673a\u540d\uff0c\u5e76\u4e14 cloud-init \u6ca1\u6709\u8bbe\u7f6e\u4e3a\u4fdd\u7559\u5f53\u524d\u4e3b\u673a\u540d\uff0c\u90a3\u4e48\u5373\u4f7f <code>hostnamectl<\/code> \u4fee\u6539\u6210\u529f\uff0c\u91cd\u542f\u540e\u4ecd\u53ef\u80fd\u6062\u590d\u65e7\u4e3b\u673a\u540d\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u56e0\u6b64\uff0c\u514b\u9686\u7cfb\u7edf\u6b63\u5f0f\u4e0a\u7ebf\u524d\uff0c\u5e94\u5148\u5b8c\u6210\u7cfb\u7edf\u8eab\u4efd\u62c6\u5206\uff0c\u518d\u5904\u7406\u8fdc\u7a0b\u8bbf\u95ee\u548c\u4ee3\u7406\u670d\u52a1\u5165\u53e3\u3002\u8fd9\u6837\u624d\u80fd\u907f\u514d\u4e24\u53f0\u8bbe\u5907\u5728\u7f51\u7edc\u3001\u5b89\u5168\u8eab\u4efd\u3001\u65e5\u5fd7\u548c\u8fdc\u7a0b\u8fde\u63a5\u5c42\u9762\u4e92\u76f8\u6df7\u6dc6\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u80cc\u666f \u4e00\u5957\u5df2\u7ecf\u914d\u7f6e\u597d\u7684\u6811\u8393\u6d3e\u7cfb\u7edf\u88ab\u5b8c\u6574\u590d\u5236\u5230\u53e6\u4e00\u5f20\u5b58\u50a8\u5361\u4e0a\uff0c\u968f\u540e\u5206\u522b\u5728\u4e24\u53f0\u6811\u8393\u6d3e\u8bbe\u5907\u4e0a\u542f\u52a8\u3002\u8fd9\u6837\u505a\u53ef\u4ee5\u8282\u7701\u5927\u91cf\u91cd\u590d\u914d\u7f6e\u65f6\u95f4\uff0c\u5c24\u5176\u9002\u5408\u7cfb\u7edf\u4e2d\u5df2\u7ecf\u9884\u5148\u914d\u7f6e\u597d\u8fdc\u7a0b\u8bbf\u95ee\u3001\u7f51\u7edc\u811a\u672c\u3001\u4ee3\u7406\u670d\u52a1\u3001Web \u670d\u52a1\u548c\u82e5\u5e72\u5e38\u9a7b\u670d\u52a1\u7684\u60c5\u51b5\u3002 \u4e0d\u8fc7\uff0c\u5b8c\u6574\u514b\u9686\u7cfb\u7edf\u4e5f\u4f1a\u5e26\u6765\u4e00\u4e2a\u660e\u663e\u95ee\u9898\uff1a\u4e24\u53f0\u8bbe\u5907\u867d\u7136\u786c\u4ef6\u4e0d\u540c\uff0c\u4f46\u7cfb\u7edf\u5185\u90e8\u8eab\u4efd\u53ef\u80fd\u5b8c\u5168\u76f8\u540c\u3002 \u5982\u679c\u4e0d\u5904\u7406\uff0c\u540e\u7eed\u53ef\u80fd\u51fa\u73b0\uff1a 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\u6ca1\u6709\u8bbe\u7f6e\u4e3a\u4fdd\u7559\u5f53\u524d\u4e3b\u673a\u540d\uff0c\u90a3\u4e48\u91cd\u542f\u540e\u7cfb\u7edf\u53ef\u80fd\u518d\u6b21\u628a\u4e3b\u673a\u540d\u6539\u56de\u65e7\u503c\u3002 \u56e0\u6b64\uff0c\u6b63\u786e\u505a\u6cd5\u4e0d\u662f\u53ea\u6539 \/etc\/hostname\uff0c\u800c\u662f\u8981\u540c\u65f6\u5904\u7406 cloud-init \u7684\u6e90\u5934\u914d\u7f6e\u3002 \u6b63\u786e\u4fee\u6539\u7b2c\u4e00\u53f0\u8bbe\u5907\u4e3b\u673a\u540d \u5047\u8bbe\u7b2c\u4e00\u53f0\u8bbe\u5907\u7684\u65b0\u4e3b\u673a\u540d\u4e3a\uff1a \u5728 root \u7528\u6237\u4e0b\uff0c\u53ef\u4ee5\u4e00\u6b21\u6027\u6267\u884c\uff1a \u91cd\u542f\u540e\u786e\u8ba4\uff1a \u76ee\u6807\u72b6\u6001\u662f\uff1a \u8fd9\u6837\uff0c\u4e3b\u673a\u540d\u624d\u7b97\u771f\u6b63\u6301\u4e45\u4fee\u6539\u6210\u529f\u3002 \u91cd\u65b0\u751f\u6210 machine-id &hellip;<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[29],"tags":[],"class_list":["post-5861","post","type-post","status-publish","format-standard","hentry","category-vuwvtm6m4vkbg"],"_links":{"self":[{"href":"https:\/\/eternalsphere.net\/echoes\/index.php\/wp-json\/wp\/v2\/posts\/5861","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/eternalsphere.net\/echoes\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/eternalsphere.net\/echoes\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/eternalsphere.net\/echoes\/index.php\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/eternalsphere.net\/echoes\/index.php\/wp-json\/wp\/v2\/comments?post=5861"}],"version-history":[{"count":1,"href":"https:\/\/eternalsphere.net\/echoes\/index.php\/wp-json\/wp\/v2\/posts\/5861\/revisions"}],"predecessor-version":[{"id":5863,"href":"https:\/\/eternalsphere.net\/echoes\/index.php\/wp-json\/wp\/v2\/posts\/5861\/revisions\/5863"}],"wp:attachment":[{"href":"https:\/\/eternalsphere.net\/echoes\/index.php\/wp-json\/wp\/v2\/media?parent=5861"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/eternalsphere.net\/echoes\/index.php\/wp-json\/wp\/v2\/categories?post=5861"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/eternalsphere.net\/echoes\/index.php\/wp-json\/wp\/v2\/tags?post=5861"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}