{"id":30759,"date":"2026-07-14T10:03:00","date_gmt":"2026-07-14T02:03:00","guid":{"rendered":"https:\/\/cn.hostease.com\/blog\/?p=30759"},"modified":"2026-07-28T13:58:11","modified_gmt":"2026-07-28T05:58:11","slug":"linux-network-namespace-practical","status":"publish","type":"post","link":"https:\/\/cn.hostease.com\/blog\/tutorials\/linux-network-namespace-practical\/","title":{"rendered":"Linux network namespace \u4e0e\u5bb9\u5668\u7f51\u7edc\u5b9e\u6218"},"content":{"rendered":"

\"Linux<\/p>\n

\u672c\u6587\u6559\u4f60\u5982\u4f55\u7528 Linux network namespace\uff08Linux \u7f51\u7edc\u547d\u540d\u7a7a\u95f4\uff09\u4ece\u96f6\u642d\u5efa\u5bb9\u5668\u7f51\u7edc\uff0c\u8986\u76d6 namespace \u521b\u5efa\u3001veth \u5bf9\u3001bridge \u4e92\u8054\u3001NAT \u51fa\u7f51\u4e0e\u6545\u969c\u6392\u67e5\u4e94\u7c7b\u6838\u5fc3\u573a\u666f\u3002\u8bfb\u5b8c\u4f60\u4f1a\u5f97\u5230\u4e09\u4ef6\u4ea7\u51fa\uff1a\u4e00\u4efd\u5b8c\u6574\u53ef\u8fd0\u884c\u7684\u591a\u5bb9\u5668\u4e92\u901a\u5b9e\u9a8c\u811a\u672c\uff1b\u4e0e\u5e38\u89c1\u5bb9\u5668 bridge \u7f51\u7edc\u7684\u5bf9\u5e94\u5173\u7cfb\uff1b\u9488\u5bf9\u7f51\u7edc\u4e0d\u901a\u3001MTU \u5f02\u5e38\u3001conntrack \u9519\u4e71\u7684\u5feb\u901f\u6392\u67e5\u6e05\u5355\u3002<\/p>\n

\u4e00\u3001network namespace \u662f\u4ec0\u4e48<\/h2>\n

Linux \u5185\u6838\u63d0\u4f9b\u7684\u547d\u540d\u7a7a\u95f4\u662f\u4e00\u5957\u8d44\u6e90\u9694\u79bb\u673a\u5236\uff0cnetwork namespace\uff08Linux \u7f51\u7edc\u547d\u540d\u7a7a\u95f4\uff09\u628a\u7f51\u7edc\u534f\u8bae\u6808\u3001\u7f51\u5361\u63a5\u53e3\u3001\u8def\u7531\u8868\u3001\u9632\u706b\u5899\u89c4\u5219\u4e0e\u5957\u63a5\u5b57\u6574\u4f53\u9694\u79bb\u5f00\u3002\u4e00\u4e2a\u547d\u540d\u7a7a\u95f4\u91cc\u770b\u5230\u7684\u672c\u5730\u56de\u73af\u3001\u7f51\u5361\u63a5\u53e3\u3001\u8def\u7531\u8868\u9879\u90fd\u662f\u72ec\u7acb\u7684\uff0c\u4e0e\u5176\u4ed6\u547d\u540d\u7a7a\u95f4\u4e92\u4e0d\u53ef\u89c1\u3002\u5bb9\u5668\u8fd0\u884c\u65f6\u4e0e\u5bb9\u5668\u7f16\u6392\u5e73\u53f0\u7684\u7f51\u7edc\u9694\u79bb\uff0c\u672c\u8d28\u5c31\u662f\u7ed9\u6bcf\u4e2a\u5bb9\u5668\u6216\u5bb9\u5668\u7ec4\u5206\u914d\u4e00\u4e2a\u7f51\u7edc\u547d\u540d\u7a7a\u95f4\uff0c\u501f\u6b64\u5b9e\u73b0\u8f7b\u91cf\u7684\u591a\u79df\u6237\u9694\u79bb\u3002<\/p>\n

\u5982\u4f55\u624b\u52a8\u67e5\u770b\uff1fip netns list<\/code> \u5217\u51fa\u547d\u540d\u7684\u547d\u540d\u7a7a\u95f4\uff0clsns -t net<\/code> \u5217\u51fa\u6240\u6709\u5305\u542b\u533f\u540d\u7684\u547d\u540d\u7a7a\u95f4\u3002\u5bb9\u5668\u7684\u547d\u540d\u7a7a\u95f4\u4e00\u822c\u662f\u533f\u540d\u7684\uff0c\u53ef\u4ee5\u901a\u8fc7\u8fd0\u884c\u65f6 inspect \u547d\u4ee4\u62ff\u5230\u5bb9\u5668\u4e3b\u8fdb\u7a0b\u7684\u8fdb\u7a0b\u53f7\uff0c\u518d\u7528 nsenter<\/code> \u8fdb\u5165\u5b83\u7684\u547d\u540d\u7a7a\u95f4\u67e5\u770b\u3002\u4e91\u670d\u52a1\u5668\uff08\u6309\u9700\u5206\u914d\u7684\u865a\u62df\u5316\u670d\u52a1\u5668\uff09\u5185\u90e8\u5b8c\u5168\u652f\u6301\u547d\u540d\u7a7a\u95f4\uff0c\u662f\u642d\u5efa\u8f7b\u91cf\u9694\u79bb\u6d4b\u8bd5\u73af\u5883\u7684\u597d\u9009\u62e9\uff0c\u76f8\u5173\u9009\u578b\u53ef\u53c2\u8003 \u4e91\u670d\u52a1\u5668\u9009\u8d2d\u6307\u5357<\/a>\u3002<\/p>\n

\u4e8c\u3001ip netns \u521b\u5efa\u4e0e\u57fa\u672c\u64cd\u4f5c<\/h2>\n

\u6700\u76f4\u63a5\u7684\u65b9\u5f0f\u662f ip netns add ns1<\/code> \u521b\u5efa\u547d\u540d\u7a7a\u95f4\uff0c\u7136\u540e\u7528 ip netns exec ns1 ip link<\/code> \u67e5\u770b\u63a5\u53e3\u3001ip netns exec ns1 ip addr add 127.0.0.1\/8 dev lo && ip netns exec ns1 ip link set lo up<\/code> \u628a lo \u8d77\u8d77\u6765\u624d\u80fd ping \u901a\u3002<\/p>\n

\u521a\u5efa\u51fa\u6765\u7684 namespace \u53ea\u6709\u4e00\u4e2a down \u72b6\u6001\u7684 lo\u3002ip netns exec <ns> <cmd><\/code> \u662f\u6700\u5e38\u7528\u7684\u8bed\u6cd5\uff0c\u5728\u6307\u5b9a namespace \u5185\u6267\u884c\u4efb\u610f\u547d\u4ee4\u3002namespace \u5220\u9664\u7528 ip netns delete ns1<\/code>\uff0c\u91cc\u9762\u7684\u6240\u6709\u63a5\u53e3\u4e0e\u8def\u7531\u90fd\u4f1a\u88ab\u6e05\u7a7a\u3002<\/p>\n

\u6ce8\u610f ip netns add \u521b\u5efa\u7684\u547d\u540d namespace \u6587\u4ef6\u6302\u8f7d\u5728 \/var\/run\/netns\/<\/code>\uff0c\u800c\u5bb9\u5668\u8fd0\u884c\u65f6\u521b\u5efa\u7684\u533f\u540d namespace \u4e0d\u4f1a\u81ea\u52a8\u6302\u8f7d\u5230\u8fd9\u91cc\u3002\u8981\u8ba9 ip netns \u770b\u5230\u5bb9\u5668\u7684 namespace\uff0c\u9700\u8981\u624b\u52a8\u5efa\u7b26\u53f7\u94fe\u63a5 ln -s \/proc\/<pid>\/ns\/net \/var\/run\/netns\/<name><\/code>\uff0c\u4e4b\u540e\u5c31\u80fd\u7528 ip netns exec \u64cd\u4f5c\u4e86\u3002Web \u90e8\u7f72\u76f8\u5173\u7f51\u7edc\u914d\u7f6e\u53ef\u53c2\u8003 \u7f8e\u56fd VPS\uff08\u865a\u62df\u4e13\u7528\u670d\u52a1\u5668\uff09\u90e8\u7f72\u6559\u7a0b<\/a>\u3002<\/p>\n

\"\u547d\u540d\u7a7a\u95f4\u57fa\u672c\u64cd\u4f5c\u4e0e\u63a5\u53e3\u72b6\u6001\"<\/p>\n

\u4e09\u3001veth \u5bf9\uff1a\u8de8 namespace \u7684\u7f51\u7ebf<\/h2>\n

veth \u662f\u4e00\u5bf9\u865a\u62df\u4ee5\u592a\u7f51\u63a5\u53e3\uff0c\u4e00\u7aef\u53d1\u5305\u53e6\u4e00\u7aef\u7acb\u5373\u6536\u5305\u3002\u8981\u8ba9\u4e24\u4e2a\u547d\u540d\u7a7a\u95f4\u4e92\u901a\u81f3\u5c11\u9700\u8981\u4e00\u5bf9 veth\uff1a\u7528 ip link add<\/code> \u521b\u5efa\u63a5\u53e3\u5bf9\uff0c\u518d\u7528 ip link set<\/code> \u628a\u4e24\u7aef\u5206\u522b\u653e\u5165\u4e24\u4e2a\u547d\u540d\u7a7a\u95f4\uff0c\u8fdb\u5165\u5404\u81ea\u547d\u540d\u7a7a\u95f4\u914d\u4e0a\u540c\u7f51\u6bb5 IP \u540e set up\uff0c\u6700\u540e ping \u9a8c\u8bc1\u4e92\u901a\u3002<\/p>\n

\u8fd9\u5c31\u662f\u6700\u5c0f\u7684\u4e24\u547d\u540d\u7a7a\u95f4\u4e92\u901a\u6a21\u578b\u3002\u5e38\u89c1 bridge \u7f51\u7edc\u4f1a\u5728\u6bcf\u4e2a\u5bb9\u5668\u5185\u653e\u4e00\u6839 veth\uff0c\u53e6\u4e00\u5934\u63d2\u5728\u5bbf\u4e3b\u673a\u7684 bridge \u4e0a\uff0c\u591a\u5bb9\u5668\u9760 bridge \u8f6c\u53d1\u3002\u7406\u89e3\u8fd9\u5957\u6a21\u578b\u540e\uff0c\u5bb9\u5668\u5185\u7684 eth0 \u5c31\u662f veth \u7684\u4e00\u7aef\uff0c\u5bbf\u4e3b\u673a\u4e0a\u7684\u540c\u4f34\u63a5\u53e3\u662f\u53e6\u4e00\u7aef\u3002<\/p>\n

\u56db\u3001bridge \u4e92\u8054\u591a namespace<\/h2>\n

veth \u4e00\u5bf9\u4e00\u8fde\u63a5\u53ea\u9002\u5408\u4e24\u4e2a namespace\uff0c\u591a\u4e2a\u4e92\u8054\u8981\u9760 bridge\u3002Linux \u7684 bridge \u7c7b\u4f3c\u8f6f\u4ef6\u4ea4\u6362\u673a\uff0c\u628a\u591a\u4e2a\u63a5\u53e3\u8fde\u6210\u4e00\u4e2a\u4e8c\u5c42\u57df\u3002\u6838\u5fc3\u6b65\u9aa4\uff1a\u7528 ip link add br0 type bridge<\/code> \u5efa\u6865\u5e76 up\u3001\u7ed9\u6865\u914d\u4e0a\u7f51\u5173 IP \u4f8b\u5982 10.0.0.254\/24\uff1b\u4e3a\u6bcf\u4e2a namespace \u521b\u5efa\u4e00\u5bf9 veth\uff0c\u5bbf\u4e3b\u673a\u8fd9\u7aef\u6302\u5230 br0 \u4e0a\uff0c\u53e6\u4e00\u7aef\u653e\u8fdb\u5bf9\u5e94 namespace \u5e76\u8bbe\u597d IP \u4e0e\u9ed8\u8ba4\u8def\u7531\u6307\u5411\u7f51\u5173\u3002<\/p>\n

\u6bcf\u4e2a namespace \u7528\u4e00\u5bf9 veth \u63a5\u5230 bridge \u4e0a\uff0cbridge \u5145\u5f53\u9ed8\u8ba4\u7f51\u5173\u3002\u8fd9\u4e5f\u662f\u9ed8\u8ba4 bridge \u7f51\u7edc\u7684\u5de5\u4f5c\u673a\u5236\uff0c\u6865\u8bbe\u5907 IP \u6bb5\u5e38\u89c1\u4e3a 172.17.0.0\/16 \u4e00\u7c7b\u79c1\u6709\u7f51\u6bb5\u3002\u5bb9\u5668\u5316\u8fb9\u7f18\u8282\u70b9\u7684\u7f51\u7edc\u6a21\u578b\u4ecd\u662f\u8fd9\u4e00\u5957\uff0c\u53ea\u662f\u88ab CNI\uff08\u5bb9\u5668\u7f51\u7edc\u63a5\u53e3\u89c4\u8303\uff09\u63d2\u4ef6\u5c01\u88c5\u4e86\u4e00\u5c42\uff0c\u76f8\u5173\u6027\u80fd\u8c03\u4f18\u53ef\u770b W3 Total Cache \u8c03\u4f18\u5b9e\u6218<\/a>\u3002<\/p>\n

\"veth<\/p>\n

\u4e94\u3001NAT \u51fa\u7f51\u4e0e\u7aef\u53e3\u6620\u5c04<\/h2>\n

namespace \u5185\u7684\u5bb9\u5668\u8981\u8bbf\u95ee\u5916\u7f51\uff0c\u9700\u8981\u5728\u5bbf\u4e3b\u673a\u505a SNAT\uff1b\u5916\u90e8\u8981\u8bbf\u95ee\u5bb9\u5668\uff0c\u9700\u8981 DNAT\u3002\u7528 iptables \u6216 nftables \u914d\u5408\uff1a\u5148\u7528 sysctl -w net.ipv4.ip_forward=1<\/code> \u6253\u5f00 IP \u8f6c\u53d1\uff0cPOSTROUTING \u94fe\u4e0a\u5bf9\u6e90\u5730\u5740 10.0.0.0\/24 \u8d70 MASQUERADE \u81ea\u52a8 SNAT \u5230\u51fa\u53e3\u7f51\u5361\u5730\u5740\uff1bPREROUTING \u94fe\u4e0a\u628a\u5bbf\u4e3b\u673a\u7684 8080 \u7aef\u53e3 DNAT \u5230\u5bb9\u5668 10.0.0.1:80\u3002\u8fd9\u5c31\u662f\u5e38\u89c1\u7aef\u53e3\u53d1\u5e03\u53c2\u6570\u80cc\u540e\u7684\u5b9e\u73b0\u3002<\/p>\n

\u6ce8\u610f\u5e38\u89c1\u9677\u9631\uff1aip_forward \u5fc5\u987b\u5f00\u5426\u5219\u8def\u7531\u4e0d\u8f6c\u53d1\uff1bPOSTROUTING \u7684\u51fa\u53e3\u7f51\u5361\u8981\u5199\u5bf9\uff0c\u591a\u7f51\u5361\u673a\u5668\u9009\u9519\u4f1a\u53d1\u4e0d\u51fa\u53bb\uff1b\u8fde\u63a5\u6570\u5927\u65f6 conntrack \u8868\u6ee1\u4f1a\u4e22\u5305\uff0c\u8c03\u4f18 nf_conntrack_max\u3002\u66f4\u591a\u670d\u52a1\u5668\u7ef4\u62a4\u89c1 WordPress \u5206\u7c7b<\/a>\u3002<\/p>\n

\u516d\u3001\u6545\u969c\u6392\u67e5\u8def\u5f84<\/h2>\n

\u5bb9\u5668\u7f51\u7edc\u4e0d\u901a\u65f6\u6309\u987a\u5e8f\u6392\u67e5\uff1a\u5148\u7528 ip netns exec <ns> ip addr<\/code> \u770b\u63a5\u53e3\u4e0e IP\uff0c\u518d\u7528 ip route<\/code> \u770b\u9ed8\u8ba4\u7f51\u5173\uff0c\u7136\u540e\u9010\u6b65 ping \u7f51\u5173\u4e0e\u5916\u7f51\uff0c\u6700\u540e ss -tlnp<\/code> \u770b\u76d1\u542c\u3002MTU \u5f02\u5e38\u662f\u53e6\u4e00\u7c7b\u9690\u853d\u6545\u969c\uff0cPMTUD \u88ab\u4e2d\u95f4\u7f51\u7edc\u963b\u65ad\u65f6\u5c0f\u5305\u901a\u5927\u5305\u4e0d\u901a\uff0c\u53ef\u4ee5\u4e34\u65f6\u628a\u5bb9\u5668 MTU \u8c03\u5230 1400 \u9a8c\u8bc1\u3002conntrack \u9519\u4e71\u591a\u89c1\u4e8e SNAT \u540e\u7aef\u53e3\u8017\u5c3d\uff0cdmesg \u4f1a\u51fa\u73b0 table full\uff0c\u6309\u524d\u6587 sysctl \u8c03\u4f18\u5373\u53ef\u3002<\/p>\n

\u8fdb\u9636\u8bca\u65ad\u7528 tcpdump -i any -nn host <ip><\/code> \u5728\u5bbf\u4e3b\u673a\u4e24\u4fa7\u6293\u5305\uff0c\u770b\u8bf7\u6c42\u662f\u5426\u771f\u7684\u5230\u4e86\u5bf9\u7aef\u3001\u56de\u5305\u6709\u6ca1\u6709\u8d70\u5bf9\u8def\u5f84\uff0cconntrack \u8868\u9879\u7528 conntrack -L<\/code> \u67e5\u5177\u4f53\u8fde\u63a5\u72b6\u6001\u3002<\/p>\n

\u4e03\u3001\u6027\u80fd\u4e0e\u53ef\u89c2\u6d4b\u6027\u8fdb\u9636<\/h2>\n

network namespace\uff08Linux \u7f51\u7edc\u547d\u540d\u7a7a\u95f4\uff09\u9694\u79bb\u867d\u7136\u8f7b\u91cf\uff0c\u4f46\u6210\u5343\u4e0a\u4e07\u4e2a namespace \u540c\u65f6\u5b58\u5728\u4ecd\u4f1a\u5e26\u6765\u5f00\u9500\u3002\u6bcf\u4e2a namespace \u90fd\u6709\u72ec\u7acb\u7684\u534f\u8bae\u6808\u72b6\u6001\u673a\u4e0e conntrack \u8868\uff0c\u5185\u5b58\u4e0e CPU \u5f00\u9500\u4e0d\u53ef\u5ffd\u7565\u3002\u5927\u89c4\u6a21\u8282\u70b9\u8dd1\u51e0\u5343\u4e2a\u5bb9\u5668\u5b9e\u4f8b\u65f6\uff0c\u5efa\u8bae\u76d1\u63a7 socket \u603b\u6570\uff08\/proc\/net\/sockstat\uff09\u3001conntrack \u8868\u9879\u6570\uff08conntrack -C\uff09\u3001\u6bcf\u4e2a veth \u7684\u4e22\u5305\u8ba1\u6570\uff08ip -s link\uff09\u4ee5\u53ca\u786c\u4ef6\u7ea7\u7edf\u8ba1\uff08ethtool -S\uff09\u3002<\/p>\n

\u5185\u6838\u53ef\u89c2\u6d4b\u7a0b\u5e8f\u662f\u65b0\u4e00\u4ee3\u7684\u7f51\u7edc\u89c2\u6d4b\u5de5\u5177\uff0c\u53ef\u4ee5\u5728\u5185\u6838\u6001\u4f4e\u5f00\u9500\u5730\u6293\u53d6 namespace \u95f4\u7684\u8fde\u63a5\u4e8b\u4ef6\u3002\u5b9e\u8df5\u4e2d\u53ef\u4ee5\u6309 namespace \u8fc7\u6ee4 tcp connect\u3001tcp accept \u4e8b\u4ef6\uff0c\u4e5f\u53ef\u4ee5\u628a\u8f6c\u53d1\u903b\u8f91\u4e0b\u6c89\u5230\u5185\u6838\u7a0b\u5e8f\u5904\u7406\uff0c\u51cf\u5c11\u4f20\u7edf\u89c4\u5219\u94fe\u8fc7\u957f\u5e26\u6765\u7684\u5ef6\u8fdf\u3002\u5bf9\u4e1a\u52a1\u670d\u52a1\u5668\u6765\u8bf4\uff0c\u5148\u628a\u6307\u6807\u91c7\u96c6\u548c\u544a\u8b66\u9608\u503c\u5efa\u8d77\u6765\uff0c\u901a\u5e38\u6bd4\u76f2\u76ee\u66ff\u6362\u7f51\u7edc\u63d2\u4ef6\u66f4\u7a33\u59a5\u3002<\/p>\n

\"\u5bb9\u5668\u7f51\u7edc\u6545\u969c\u6392\u67e5\u7684\u6293\u5305\u4e0e\u6307\u6807\u89c2\u5bdf\"<\/p>\n

\u516b\u3001\u5bb9\u5668\u7ec4\u7f51\u7edc\u6a21\u578b\u56de\u987e<\/h2>\n

\u5bb9\u5668\u7f16\u6392\u5e73\u53f0\u4e2d\u7684\u5bb9\u5668\u7ec4\u901a\u5e38\u5171\u4eab\u540c\u4e00\u4e2a network namespace\uff08Linux \u7f51\u7edc\u547d\u540d\u7a7a\u95f4\uff09\u3002\u63a7\u5236\u7ec4\u4ef6\u5148\u542f\u52a8\u4e00\u4e2a\u5f88\u5c0f\u7684\u57fa\u7840\u5bb9\u5668\u6765\u6301\u6709 namespace\uff0c\u518d\u8ba9\u4e1a\u52a1\u5bb9\u5668\u52a0\u5165\uff0c\u4e8e\u662f\u540c\u4e00\u7ec4\u5185\u6240\u6709\u5bb9\u5668\u5171\u4eab lo\u3001eth0\u3001\u7aef\u53e3\uff0c\u8fd9\u5c31\u662f\u4e3a\u4ec0\u4e48\u540c\u7ec4\u4e24\u4e2a\u5bb9\u5668\u53ef\u4ee5\u901a\u8fc7 127.0.0.1 \u4e92\u8bbf\u3002<\/p>\n

CNI\uff08\u5bb9\u5668\u7f51\u7edc\u63a5\u53e3\u89c4\u8303\uff09\u63d2\u4ef6\u8d1f\u8d23\u7ed9\u5bb9\u5668\u7ec4 namespace \u5206\u914d IP\u3001\u8fde\u63a5\u5230\u8282\u70b9\u4e0a\u7684\u7f51\u6865\u6216\u8def\u7531\u3002\u5e38\u89c1\u5b9e\u73b0\u4f1a\u9009\u62e9 overlay \u96a7\u9053\u3001\u4e09\u5c42\u8def\u7531\u6216\u5185\u6838\u7a0b\u5e8f\u8f6c\u53d1\uff0c\u5e95\u5c42\u4ecd\u79bb\u4e0d\u5f00 veth \u4e0e bridge \u8fd9\u4e9b\u57fa\u7840\u79ef\u6728\u3002\u6392\u67e5\u95ee\u9898\u65f6\u5148\u8fdb\u5165\u5bb9\u5668\u7ec4\u5185\u90e8\u770b\u63a5\u53e3\uff0c\u518d\u5230\u8282\u70b9\u4e0a\u627e\u5230\u5bf9\u5e94 namespace \u7528 nsenter \u8fdb\u5165\u6293\u5305\uff0c\u6bd4\u53ea\u770b\u63d2\u4ef6\u65e5\u5fd7\u66f4\u9ad8\u6548\u3002<\/p>\n

\u603b\u7ed3\u4e0e\u5efa\u8bae<\/h2>\n

network namespace\uff08Linux \u7f51\u7edc\u547d\u540d\u7a7a\u95f4\uff09\u662f\u5bb9\u5668\u7f51\u7edc\u7684\u5185\u6838\u57fa\u77f3\uff0c\u7406\u89e3 veth\u3001bridge\u3001NAT \u4e09\u4ef6\u5957\u5c31\u80fd\u770b\u61c2\u5927\u591a\u6570\u5bb9\u5668\u7f51\u7edc\u6a21\u578b\u3002\u5efa\u8bae\u4f60\u6309\u672c\u6587\u987a\u5e8f\u843d\u5730\uff1a\u5148\u7528 ip netns \u624b\u52a8\u642d\u4e00\u4e2a\u6700\u5c0f\u5b9e\u9a8c\u73af\u5883\u8dd1\u901a\u4e92\u901a\u4e0e\u51fa\u7f51\uff0c\u518d\u5bf9\u7167\u9605\u8bfb\u8fd0\u884c\u65f6\u7f51\u7edc\u914d\u7f6e\uff0c\u6700\u540e\u628a\u6240\u5b66\u5e94\u7528\u5230\u751f\u4ea7\u6392\u67e5\u3002\u5982\u679c\u4f60\u9700\u8981\u628a\u8fd9\u7c7b\u5b9e\u9a8c\u73af\u5883\u957f\u671f\u653e\u5728 VPS<\/a>\uff08\u865a\u62df\u4e13\u7528\u670d\u52a1\u5668<\/a>\uff09\u6216\u4e91\u670d\u52a1\u5668\uff08\u6309\u9700\u5206\u914d\u7684\u865a\u62df\u5316\u670d\u52a1\u5668\uff09\u4e0a\uff0cHostease \u7684\u4e3b\u673a\u65b9\u6848\u53ef\u4ee5\u4f5c\u4e3a\u7a33\u5b9a\u6d4b\u8bd5\u4e0e\u5c0f\u578b\u4e1a\u52a1\u90e8\u7f72\u7684\u5019\u9009\u4e4b\u4e00\u3002\u603b\u7ed3\u4e00\u4e0b\uff0cnetwork namespace \u4e0d\u590d\u6742\u4f46\u7ec6\u8282\u591a\uff0c\u4eb2\u624b\u642d\u4e00\u904d\u6bd4\u53ea\u770b\u6982\u5ff5\u66f4\u6709\u6548\uff0c\u628a\u5b9e\u9a8c\u811a\u672c\u4fdd\u5b58\u4e0b\u6765\u53cd\u590d\u8dd1\uff0c\u624d\u80fd\u5728\u771f\u5b9e\u6545\u969c\u53d1\u751f\u65f6\u5feb\u901f\u5b9a\u4f4d\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

\u7cfb\u7edf\u8bb2\u89e3 Linux network namespace \u7684\u521b\u5efa\u3001\u4e92\u8054\u4e0e\u5bb9\u5668\u7f51\u7edc\u5e95\u5c42\u6a21\u578b\uff0c\u9644 veth\u3001bridge \u547d\u4ee4\u4e0e\u6392\u67e5\u8def\u5f84\u3002<\/p>\n","protected":false},"author":2,"featured_media":30757,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[4099],"tags":[4561,4558,4562,4560,4559],"class_list":["post-30759","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tutorials","tag-bridge","tag-linuxnetworknamespace","tag-nat","tag-veth","tag-4559"],"aioseo_notices":[],"jetpack_featured_media_url":"https:\/\/cn.hostease.com\/blog\/wp-content\/uploads\/2026\/05\/linux-network-namespace-practical-cover.webp","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/cn.hostease.com\/blog\/wp-json\/wp\/v2\/posts\/30759","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cn.hostease.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/cn.hostease.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/cn.hostease.com\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/cn.hostease.com\/blog\/wp-json\/wp\/v2\/comments?post=30759"}],"version-history":[{"count":2,"href":"https:\/\/cn.hostease.com\/blog\/wp-json\/wp\/v2\/posts\/30759\/revisions"}],"predecessor-version":[{"id":31887,"href":"https:\/\/cn.hostease.com\/blog\/wp-json\/wp\/v2\/posts\/30759\/revisions\/31887"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/cn.hostease.com\/blog\/wp-json\/wp\/v2\/media\/30757"}],"wp:attachment":[{"href":"https:\/\/cn.hostease.com\/blog\/wp-json\/wp\/v2\/media?parent=30759"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cn.hostease.com\/blog\/wp-json\/wp\/v2\/categories?post=30759"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cn.hostease.com\/blog\/wp-json\/wp\/v2\/tags?post=30759"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}