{"id":3305,"date":"2018-03-31T13:17:41","date_gmt":"2018-03-31T05:17:41","guid":{"rendered":"http:\/\/cn.hostease.com\/xueyuan\/?p=3305"},"modified":"2018-03-31T13:17:41","modified_gmt":"2018-03-31T05:17:41","slug":"%e8%a7%a3%e8%af%bb-ip-%e5%91%bd%e4%bb%a4%e5%b1%95%e7%a4%ba%e7%9a%84%e7%bd%91%e7%bb%9c%e8%bf%9e%e6%8e%a5%e4%bf%a1%e6%81%af","status":"publish","type":"post","link":"https:\/\/cn.hostease.com\/xueyuan\/uncategorized\/%e8%a7%a3%e8%af%bb-ip-%e5%91%bd%e4%bb%a4%e5%b1%95%e7%a4%ba%e7%9a%84%e7%bd%91%e7%bb%9c%e8%bf%9e%e6%8e%a5%e4%bf%a1%e6%81%af\/","title":{"rendered":"\u89e3\u8bfb ip \u547d\u4ee4\u5c55\u793a\u7684\u7f51\u7edc\u8fde\u63a5\u4fe1\u606f"},"content":{"rendered":"

ip<\/code>\u00a0\u547d\u4ee4\u53ef\u4ee5\u544a\u8bc9\u4f60\u5f88\u591a\u7f51\u7edc\u8fde\u63a5\u914d\u7f6e\u548c\u72b6\u6001\u7684\u4fe1\u606f\uff0c\u4f46\u662f\u6240\u6709\u8fd9\u4e9b\u8bcd\u548c\u6570\u5b57\u610f\u5473\u7740\u4ec0\u4e48\uff1f \u8ba9\u6211\u4eec\u6df1\u5165\u4e86\u89e3\u4e00\u4e0b\uff0c\u770b\u770b\u6240\u6709\u663e\u793a\u7684\u503c\u90fd\u8bd5\u56fe\u544a\u8bc9\u4f60\u4ec0\u4e48\u3002<\/p>\n

\u5f53\u60a8\u4f7f\u7528\u00a0ip a<\/code>\uff08\u6216\u00a0ip addr<\/code>\uff09\u547d\u4ee4\u83b7\u53d6\u7cfb\u7edf\u4e0a\u6240\u6709\u7f51\u7edc\u63a5\u53e3\u7684\u4fe1\u606f\u65f6\uff0c\u60a8\u5c06\u770b\u5230\u5982\u4e0b\u6240\u793a\u7684\u5185\u5bb9\uff1a<\/p>\n

    \n
  1. $ <\/span>ip<\/span> a<\/span><\/code><\/li>\n
  2. 1<\/span>:<\/span> lo<\/span>:<\/span> <<\/span>LOOPBACK<\/span>,<\/span>UP<\/span>,<\/span>LOWER_UP<\/span>><\/span> mtu <\/span>65536<\/span> qdisc noqueue state UNKNOWN group <\/span>default<\/span> qlen <\/span>1000<\/span><\/code><\/li>\n
  3. link<\/span>\/<\/span>loopback <\/span>00<\/span>:<\/span>00<\/span>:<\/span>00<\/span>:<\/span>00<\/span>:<\/span>00<\/span>:<\/span>00<\/span> brd <\/span>00<\/span>:<\/span>00<\/span>:<\/span>00<\/span>:<\/span>00<\/span>:<\/span>00<\/span>:<\/span>00<\/span><\/code><\/li>\n
  4. inet <\/span>127.0<\/span>.<\/span>0.1<\/span>\/<\/span>8<\/span> scope host lo<\/span><\/code><\/li>\n
  5. valid_lft forever preferred_lft forever<\/span><\/code><\/li>\n
  6. inet6 <\/span>::<\/span>1<\/span>\/<\/span>128<\/span> scope host<\/span><\/code><\/li>\n
  7. valid_lft forever preferred_lft forever<\/span><\/code><\/li>\n
  8. 2<\/span>:<\/span> enp0s25<\/span>:<\/span> <<\/span>BROADCAST<\/span>,<\/span>MULTICAST<\/span>,<\/span>UP<\/span>,<\/span>LOWER_UP<\/span>><\/span> mtu <\/span>1500<\/span> qdisc pfifo_fast state UP group <\/span>default<\/span> qlen <\/span>1000<\/span><\/code><\/li>\n
  9. link<\/span>\/<\/span>ether <\/span>00<\/span>:<\/span>1e<\/span>:<\/span>4f<\/span>:<\/span>c8<\/span>:<\/span>43<\/span>:<\/span>fc brd ff<\/span>:<\/span>ff<\/span>:<\/span>ff<\/span>:<\/span>ff<\/span>:<\/span>ff<\/span>:<\/span>ff<\/span><\/code><\/li>\n
  10. inet <\/span>192.168<\/span>.<\/span>0.24<\/span>\/<\/span>24<\/span> brd <\/span>192.168<\/span>.<\/span>0.255<\/span> scope <\/span>global<\/span> dynamic enp0s25<\/span><\/code><\/li>\n
  11. valid_lft <\/span>57295sec<\/span> preferred_lft <\/span>57295sec<\/span><\/code><\/li>\n
  12. inet6 fe80<\/span>::<\/span>2c8e<\/span>:<\/span>1de0<\/span>:<\/span>a862<\/span>:<\/span>14fd<\/span>\/<\/span>64<\/span> scope <\/span>link<\/span><\/code><\/li>\n
  13. valid_lft forever preferred_lft forever<\/span><\/code><\/li>\n<\/ol>\n

    \u8fd9\u4e2a\u7cfb\u7edf\u4e0a\u7684\u4e24\u4e2a\u63a5\u53e3 – \u73af\u56de\uff08lo<\/code>\uff09\u548c\u7f51\u7edc\uff08enp0s25<\/code>\uff09\u2014\u2014\u663e\u793a\u4e86\u5f88\u591a\u7edf\u8ba1\u6570\u636e\u3002\u00a0lo<\/code>\u00a0\u63a5\u53e3\u663e\u7136\u662f\u73af\u56de\u5730\u5740loolback<\/rt><\/ruby>\u3002 \u6211\u4eec\u53ef\u4ee5\u5728\u5217\u8868\u4e2d\u770b\u5230\u73af\u56de IPv4 \u5730\u5740\uff08127.0.0.1<\/code>\uff09\u548c\u73af\u56de IPv6\uff08::1<\/code>\uff09\u3002 \u800c\u666e\u901a\u7684\u7f51\u7edc\u63a5\u53e3\u66f4\u6709\u8da3\u3002<\/p>\n

    \u4e3a\u4ec0\u4e48\u662f enp0s25 \u800c\u4e0d\u662f eth0<\/h3>\n

    \u5982\u679c\u4f60\u60f3\u77e5\u9053\u4e3a\u4ec0\u4e48\u5b83\u5728\u8fd9\u4e2a\u7cfb\u7edf\u4e0a\u88ab\u79f0\u4e3a\u00a0enp0s25<\/code>\uff0c\u800c\u4e0d\u662f\u53ef\u80fd\u66f4\u719f\u6089\u7684\u00a0eth0<\/code>\uff0c\u90a3\u6211\u4eec\u53ef\u4ee5\u7a0d\u5fae\u89e3\u91ca\u4e00\u4e0b\u3002<\/p>\n

    \u65b0\u7684\u547d\u540d\u65b9\u6848\u88ab\u79f0\u4e3a\u201c\u53ef\u9884\u6d4b\u7684\u7f51\u7edc\u63a5\u53e3Predictable Network Interface<\/rt><\/ruby>\u201d\u3002 \u5b83\u5df2\u7ecf\u5728\u57fa\u4e8esystemd \u7684 Linux \u7cfb\u7edf\u4e0a\u4f7f\u7528\u4e86\u4e00\u6bb5\u65f6\u95f4\u4e86\u3002 \u63a5\u53e3\u540d\u79f0\u53d6\u51b3\u4e8e\u786c\u4ef6\u7684\u7269\u7406\u4f4d\u7f6e\u3002\u00a0en<\/code>\u00a0\u4ec5\u4ec5\u5c31\u662f \u201cethernet\u201d \u7684\u610f\u601d\uff0c\u5c31\u50cf \u201ceth\u201d \u7528\u4e8e\u5bf9\u5e94\u00a0eth0<\/code>\uff0c\u4e00\u6837\u3002\u00a0p<\/code>\u00a0\u662f\u4ee5\u592a\u7f51\u5361\u7684\u603b\u7ebf\u7f16\u53f7\uff0cs<\/code>\u00a0\u662f\u63d2\u69fd\u7f16\u53f7\u3002 \u6240\u4ee5\u00a0enp0s25<\/code>\u00a0\u544a\u8bc9\u6211\u4eec\u5f88\u591a\u6211\u4eec\u6b63\u5728\u4f7f\u7528\u7684\u786c\u4ef6\u7684\u4fe1\u606f\u3002<\/p>\n

    <BROADCAST,MULTICAST,UP,LOWER_UP><\/code>\u00a0\u8fd9\u4e2a\u914d\u7f6e\u4e32\u544a\u8bc9\u6211\u4eec\uff1a<\/p>\n

      \n
    1. BROADCAST <\/span>\u8be5\u63a5\u53e3\u652f\u6301\u5e7f\u64ad<\/span><\/code><\/li>\n
    2. MULTICAST <\/span>\u8be5\u63a5\u53e3\u652f\u6301\u591a\u64ad<\/span><\/code><\/li>\n
    3. UP <\/span>\u7f51\u7edc\u63a5\u53e3\u5df2\u542f\u7528<\/span><\/code><\/li>\n
    4. LOWER_UP <\/span>\u7f51\u7edc\u7535\u7f06\u5df2\u63d2\u5165\uff0c\u8bbe\u5907\u5df2\u8fde\u63a5\u81f3\u7f51\u7edc<\/span><\/code><\/li>\n<\/ol>\n

      \u5217\u51fa\u7684\u5176\u4ed6\u503c\u4e5f\u544a\u8bc9\u4e86\u6211\u4eec\u5f88\u591a\u5173\u4e8e\u63a5\u53e3\u7684\u77e5\u8bc6\uff0c\u4f46\u6211\u4eec\u9700\u8981\u77e5\u9053\u00a0brd<\/code>\u00a0\u548c\u00a0qlen<\/code>\u00a0\u8fd9\u4e9b\u8bcd\u4ee3\u8868\u4ec0\u4e48\u610f\u601d\u3002 \u6240\u4ee5\uff0c\u8fd9\u91cc\u663e\u793a\u7684\u662f\u4e0a\u9762\u5c55\u793a\u7684\u00a0ip<\/code>\u00a0\u4fe1\u606f\u7684\u5176\u4f59\u90e8\u5206\u7684\u7ffb\u8bd1\u3002<\/p>\n

        \n
      1. mtu <\/span>1500<\/span> \u6700\u5927\u4f20\u8f93\u5355\u4f4d\uff08\u6570\u636e\u5305\u5927\u5c0f\uff09\u4e3a<\/span>1<\/span>,<\/span>500<\/span>\u5b57\u8282<\/span><\/code><\/li>\n
      2. qdisc pfifo_fast <\/span>\u7528\u4e8e\u6570\u636e\u5305\u6392\u961f<\/span><\/code><\/li>\n
      3. state UP <\/span>\u7f51\u7edc\u63a5\u53e3\u5df2\u542f\u7528<\/span><\/code><\/li>\n
      4. group <\/span>default<\/span> \u63a5\u53e3\u7ec4<\/span><\/code><\/li>\n
      5. qlen <\/span>1000<\/span> \u4f20\u8f93\u961f\u5217\u957f\u5ea6<\/span><\/code><\/li>\n
      6. link<\/span>\/<\/span>ether <\/span>00<\/span>:<\/span>1e<\/span>:<\/span>4f<\/span>:<\/span>c8<\/span>:<\/span>43<\/span>:<\/span>fc <\/span>\u63a5\u53e3\u7684<\/span> MAC<\/span>\uff08\u786c\u4ef6\uff09\u5730\u5740<\/span><\/code><\/li>\n
      7. brd ff<\/span>:<\/span>ff<\/span>:<\/span>ff<\/span>:<\/span>ff<\/span>:<\/span>ff<\/span>:<\/span>ff <\/span>\u5e7f\u64ad\u5730\u5740<\/span><\/code><\/li>\n
      8. inet <\/span>192.168<\/span>.<\/span>0.24<\/span>\/<\/span>24<\/span> IPv4<\/span> \u5730\u5740<\/span><\/code><\/li>\n
      9. brd <\/span>192.168<\/span>.<\/span>0.255<\/span> \u5e7f\u64ad\u5730\u5740<\/span><\/code><\/li>\n
      10. scope <\/span>global<\/span> \u5168\u5c40\u6709\u6548<\/span><\/code><\/li>\n
      11. dynamic enp0s25 <\/span>\u5730\u5740\u662f\u52a8\u6001\u5206\u914d\u7684<\/span><\/code><\/li>\n
      12. valid_lft <\/span>80866sec<\/span> IPv4<\/span> \u5730\u5740\u7684\u6709\u6548\u4f7f\u7528\u671f\u9650<\/span><\/code><\/li>\n
      13. preferred_lft <\/span>80866sec<\/span> IPv4<\/span> \u5730\u5740\u7684\u9996\u9009\u751f\u5b58\u671f<\/span><\/code><\/li>\n
      14. inet6 fe80<\/span>::<\/span>2c8e<\/span>:<\/span>1de0<\/span>:<\/span>a862<\/span>:<\/span>14fd<\/span>\/<\/span>64<\/span> IPv6<\/span> \u5730\u5740<\/span><\/code><\/li>\n
      15. scope <\/span>link<\/span> \u4ec5\u5728\u6b64\u8bbe\u5907\u4e0a\u6709\u6548<\/span><\/code><\/li>\n
      16. valid_lft forever <\/span>IPv6<\/span> \u5730\u5740\u7684\u6709\u6548\u4f7f\u7528\u671f\u9650<\/span><\/code><\/li>\n
      17. preferred_lft forever <\/span>IPv6<\/span> \u5730\u5740\u7684\u9996\u9009\u751f\u5b58\u671f<\/span><\/code><\/li>\n<\/ol>\n

        \u60a8\u53ef\u80fd\u5df2\u7ecf\u6ce8\u610f\u5230\uff0cifconfig<\/code>\u00a0\u547d\u4ee4\u63d0\u4f9b\u7684\u4e00\u4e9b\u4fe1\u606f\u672a\u5305\u542b\u5728\u00a0ip a<\/code>\u00a0\u547d\u4ee4\u7684\u8f93\u51fa\u4e2d \u2014\u2014 \u4f8b\u5982\u4f20\u8f93\u6570\u636e\u5305\u7684\u7edf\u8ba1\u4fe1\u606f\u3002 \u5982\u679c\u60a8\u60f3\u67e5\u770b\u53d1\u9001\u548c\u63a5\u6536\u7684\u6570\u636e\u5305\u6570\u91cf\u4ee5\u53ca\u51b2\u7a81\u6570\u91cf\u7684\u5217\u8868\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u00a0ip<\/code>\u00a0\u547d\u4ee4\uff1a<\/p>\n

          \n
        1. $ <\/span>ip<\/span> -<\/span>s <\/span>link<\/span> show enp0s25<\/span><\/code><\/li>\n
        2. 2<\/span>:<\/span> enp0s25<\/span>:<\/span> <<\/span>BROADCAST<\/span>,<\/span>MULTICAST<\/span>,<\/span>UP<\/span>,<\/span>LOWER_UP<\/span>><\/span> mtu <\/span>1500<\/span> qdisc pfifo_fast state UP mode DEFAULT group <\/span>default<\/span> qlen <\/span>1000<\/span><\/code><\/li>\n
        3. link<\/span>\/<\/span>ether <\/span>00<\/span>:<\/span>1e<\/span>:<\/span>4f<\/span>:<\/span>c8<\/span>:<\/span>43<\/span>:<\/span>fc brd ff<\/span>:<\/span>ff<\/span>:<\/span>ff<\/span>:<\/span>ff<\/span>:<\/span>ff<\/span>:<\/span>ff<\/span><\/code><\/li>\n
        4. RX<\/span>:<\/span> bytes packets errors dropped overrun mcast<\/span><\/code><\/li>\n
        5. 224258568<\/span> 418718<\/span> 0<\/span> 0<\/span> 0<\/span> 84376<\/span><\/code><\/li>\n
        6. TX<\/span>:<\/span> bytes packets errors dropped carrier collsns<\/span><\/code><\/li>\n
        7. 6131373<\/span> 78152<\/span> 0<\/span> 0<\/span> 0<\/span> 0<\/span><\/code><\/li>\n<\/ol>\n

          \u53e6\u4e00\u4e2a\u00a0ip<\/code>\u00a0\u547d\u4ee4\u63d0\u4f9b\u6709\u5173\u7cfb\u7edf\u8def\u7531\u8868\u7684\u4fe1\u606f\u3002<\/p>\n

            \n
          1. $ <\/span>ip<\/span> route<\/span> show<\/span><\/code><\/li>\n
          2. default<\/span> via <\/span>192.168<\/span>.<\/span>0.1<\/span> dev enp0s25 proto <\/span>static<\/span> metric <\/span>100<\/span><\/code><\/li>\n
          3. 169.254<\/span>.<\/span>0.0<\/span>\/<\/span>16<\/span> dev enp0s25 scope <\/span>link<\/span> metric <\/span>1000<\/span><\/code><\/li>\n
          4. 192.168<\/span>.<\/span>0.0<\/span>\/<\/span>24<\/span> dev enp0s25 proto kernel scope <\/span>link<\/span> src <\/span>192.168<\/span>.<\/span>0.24<\/span> metric <\/span>100<\/span><\/code><\/li>\n<\/ol>\n

            ip<\/code>\u00a0\u547d\u4ee4\u662f\u975e\u5e38\u901a\u7528\u7684\u3002 \u60a8\u53ef\u4ee5\u4ece\u00a0ip<\/code>\u00a0\u547d\u4ee4\u53ca\u5176\u6765\u81eaRed Hat<\/a>\u7684\u9009\u9879\u83b7\u5f97\u6709\u7528\u7684\u5907\u5fd8\u5355\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

            ip\u00a0\u547d\u4ee4\u53ef\u4ee5\u544a\u8bc9\u4f60\u5f88\u591a\u7f51\u7edc\u8fde\u63a5\u914d\u7f6e\u548c\u72b6\u6001\u7684\u4fe1\u606f\uff0c\u4f46\u662f\u6240\u6709\u8fd9\u4e9b\u8bcd\u548c\u6570\u5b57\u610f\u5473\u7740\u4ec0\u4e48\uff1f \u8ba9\u6211\u4eec\u6df1\u5165\u4e86\u89e3\u4e00\u4e0b\uff0c\u770b\u770b\u6240 … \u9605\u8bfb\u66f4\u591a<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-3305","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"aioseo_notices":[],"jetpack_featured_media_url":"","jetpack-related-posts":[],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/posts\/3305","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/comments?post=3305"}],"version-history":[{"count":2,"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/posts\/3305\/revisions"}],"predecessor-version":[{"id":3307,"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/posts\/3305\/revisions\/3307"}],"wp:attachment":[{"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/media?parent=3305"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/categories?post=3305"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cn.hostease.com\/xueyuan\/wp-json\/wp\/v2\/tags?post=3305"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}