\u914d\u7f6e\u6587\u4ef6<\/p>\n\n\n\n
\/etc\/keepalived\/keepalived.conf<\/code><\/pre>\n\n\n\n\u914d\u7f6e\u6587\u4ef6\u7ec4\u6210<\/p>\n\n\n\n
- GLOBAL CONFIGURATION \u5b9a\u4e49\u90ae\u4ef6\u914d\u7f6e\uff0croute_id\uff0cvrrp\u914d\u7f6e\uff0c\u591a\u64ad\u5730\u5740\u7b49<\/li>
- VRRP CONFIGURATION \u5b9a\u4e49\u6bcf\u4e2avrrp\u865a\u62df\u8def\u7531\u5668<\/li>
- LVS CONFIGURATION LVS\u96c6\u7fa4\u7684VS\u548cRS<\/li><\/ul>\n\n\n\n
\u67e5\u770b\u5e2e\u52a9<\/p>\n\n\n\n
man keepalived.conf<\/code><\/pre>\n\n\n\n\u5168\u5c40\u914d\u7f6e<\/h2>\n\n\n\nglobal_defs {
\u200b
#keepalived\u53d1\u751f\u6545\u969c\u5207\u6362\u65f6\u90ae\u4ef6\u53d1\u9001\u7684\u76ee\u6807\u90ae\u7bb1\uff0c\u53ef\u4ee5\u6309\u884c\u5199\u591a\u4e2a
notification_email {
root@localhost
123456@qq.com
}
\u200b
#\u53d1\u90ae\u4ef6\u7684\u5730\u5740
notification_email_from keepalived@localhost
\u200b
#\u90ae\u4ef6\u670d\u52a1\u5668\u5730\u5740
smtp_server 127.0.0.1
\u200b
#\u90ae\u4ef6\u670d\u52a1\u5668\u8fde\u63a5\u8d85\u65f6\u65f6\u95f4
smtp_connect_timeout 30
\u200b
#\u6bcf\u4e2akeepalived\u4e3b\u673a\u552f\u4e00\u6807\u8bc6\uff0c\u5efa\u8bae\u4f7f\u7528\u5f53\u524d\u4e3b\u673a\u540d\uff0c\u4f46\u591a\u8282\u70b9\u91cd\u540d\u4e0d\u5f71\u54cd
router_id ka1.example.com
\u200b
#\u5bf9\u6240\u6709\u901a\u544a\u62a5\u6587\u90fd\u68c0\u67e5\uff0c\u4f1a\u6bd4\u8f83\u6d88\u8017\u6027\u80fd\uff0c\u542f\u7528\u6b64\u914d\u7f6e\u540e\uff0c\u5982\u679c\u6536\u5230\u7684\u901a\u544a\u62a5\u6587\u548c\u4e0a\u4e00\u4e2a\u62a5\u6587\u662f\u540c\u4e00\u4e2a\u8def\u7531\u5668\uff0c\u5219\u8df3\u8fc7\u68c0\u67e5
vrrp_skip_check_adv_addr
\u200b
#\u4e25\u683c\u9075\u5b88VRRP\u534f\u8bae,\u542f\u7528\u6b64\u9879\u540e\u4ee5\u4e0b\u72b6\u51b5\u5c06\u65e0\u6cd5\u542f\u52a8\u670d\u52a1:1.\u65e0VIP\u5730\u5740 2.\u914d\u7f6e\u4e86\u5355\u64ad\u90bb\u5c45 3.\u5728VRRP\u7248\u672c2\u4e2d\u6709IPv6\u5730\u5740\uff0c\u5f00\u542f\u52a8\u6b64\u9879\u5e76\u4e14\u6ca1\u6709\u914d\u7f6evrrp_iptables\u65f6\u4f1a\u81ea\u52a8\u5f00\u542fiptables\u9632\u706b\u5899\u89c4\u5219\uff0c\u9ed8\u8ba4\u5bfc\u81f4VIP\u65e0\u6cd5\u8bbf\u95ee,\u5efa\u8bae\u4e0d\u52a0\u6b64\u9879\u914d\u7f6e
vrrp_strict
\u200b
#gratuitous ARP messages \u62a5\u6587\u53d1\u9001\u5ef6\u8fdf\uff0c0\u8868\u793a\u4e0d\u5ef6\u8fdf
vrrp_garp_interval 0
\u200b
#unsolicited NA messages \uff08\u4e0d\u8bf7\u81ea\u6765\uff09\u6d88\u606f\u53d1\u9001\u5ef6\u8fdf
vrrp_gna_interval 0
\u200b
#\u6307\u5b9a\u7ec4\u64adIP\u5730\u5740\u8303\u56f4\uff1a224.0.0.0\u5230239.255.255.255,\u9ed8\u8ba4\u503c\uff1a224.0.0.18
vrrp_mcast_group4 224.0.0.18
\u200b
#\u6b64\u9879\u548cvrrp_strict\u540c\u65f6\u5f00\u542f\u65f6\uff0c\u5219\u4e0d\u4f1a\u6dfb\u52a0\u9632\u706b\u5899\u89c4\u5219,\u5982\u679c\u65e0\u914d\u7f6evrrp_strict\u9879,\u5219\u65e0\u9700\u542f\u7528\u6b64\u9879\u914d\u7f6e
vrrp_iptables<\/code><\/pre>\n\n\n\n\u914d\u7f6e\u865a\u62df\u8def\u7531\u5668<\/h2>\n\n\n\n#<String>\u4e3avrrp\u7684\u5b9e\u4f8b\u540d,\u4e00\u822c\u4e3a\u4e1a\u52a1\u540d\u79f0
vrrp_instance <STRING> {
\u914d\u7f6e\u53c2\u6570
......
}
\u200b
#\u914d\u7f6e\u53c2\u6570\uff1a
#\u5f53\u524d\u8282\u70b9\u5728\u6b64\u865a\u62df\u8def\u7531\u5668\u4e0a\u7684\u521d\u59cb\u72b6\u6001\uff0c\u72b6\u6001\u4e3aMASTER\u6216\u8005BACKUP
state MASTER|BACKUP
\u200b
#\u7ed1\u5b9a\u4e3a\u5f53\u524d\u865a\u62df\u8def\u7531\u5668\u4f7f\u7528\u7684\u7269\u7406\u63a5\u53e3\uff0c\u5982\uff1aeth0,bond0,br0,\u53ef\u4ee5\u548cVIP\u4e0d\u5728\u4e00\u4e2a\u7f51\u5361
interface IFACE_NAME
\u200b
#\u6bcf\u4e2a\u865a\u62df\u8def\u7531\u5668\u60df\u4e00\u6807\u8bc6\uff0c\u8303\u56f4\uff1a0-255\uff0c\u6bcf\u4e2a\u865a\u62df\u8def\u7531\u5668\u6b64\u503c\u5fc5\u987b\u552f\u4e00\uff0c\u5426\u5219\u670d\u52a1\u65e0\u6cd5\u542f\u52a8\uff0c\u540c\u5c5e\u4e00\u4e2a\u865a\u62df\u8def\u7531\u5668\u7684\u591a\u4e2akeepalived\u8282\u70b9\u5fc5\u987b\u76f8\u540c,\u52a1\u5fc5\u8981\u786e\u8ba4\u5728\u540c\u4e00\u7f51\u7edc\u4e2d\u6b64\u503c\u5fc5\u987b\u552f\u4e00
virtual_router_id VRID
\u200b
#\u5f53\u524d\u7269\u7406\u8282\u70b9\u5728\u6b64\u865a\u62df\u8def\u7531\u5668\u7684\u4f18\u5148\u7ea7\uff0c\u8303\u56f4\uff1a1-254\uff0c\u503c\u8d8a\u5927\u4f18\u5148\u7ea7\u8d8a\u9ad8,\u6bcf\u4e2akeepalived\u4e3b\u673a\u8282\u70b9\u6b64\u503c\u4e0d\u540c
priority 100
\u200b
#vrrp\u901a\u544a\u7684\u65f6\u95f4\u95f4\u9694\uff0c\u9ed8\u8ba41s
advert_int 1
\u200b
#\u8ba4\u8bc1\u673a\u5236
authentication {
#AH\u4e3aIPSEC\u8ba4\u8bc1(\u4e0d\u63a8\u8350),PASS\u4e3a\u7b80\u5355\u5bc6\u7801(\u5efa\u8bae\u4f7f\u7528)
auth_type AH|PASS
#\u9884\u5171\u4eab\u5bc6\u94a5\uff0c\u4ec5\u524d8\u4f4d\u6709\u6548\uff0c\u540c\u4e00\u4e2a\u865a\u62df\u8def\u7531\u5668\u7684\u591a\u4e2akeepalived\u8282\u70b9\u5fc5\u987b\u4e00\u6837
auth_pass <PASSWORD>
}
\u200b
#\u865a\u62dfIP,\u751f\u4ea7\u73af\u5883\u53ef\u80fd\u6307\u5b9a\u4e0a\u767e\u4e2aIP\u5730\u5740
#<IPADDR>\/<MASK> brd <IPADDR> dev <STRING> scope <SCOPE> label <LABEL>
virtual_ipaddress {
#\u6307\u5b9aVIP\uff0c\u4e0d\u6307\u5b9a\u7f51\u5361\uff0c\u9ed8\u8ba4\u4e3aeth0,\u6ce8\u610f\uff1a\u4e0d\u6307\u5b9a\/prefix,\u9ed8\u8ba4\u4e3a\/32
192.168.200.100
#\u6307\u5b9aVIP\u7684\u7f51\u5361\uff0c\u5efa\u8bae\u548cinterface\u6307\u4ee4\u4e0d\u5728\u4e00\u4e2a\u7f51\u5361
192.168.200.101\/24 dev eth1
#\u6307\u5b9aVIP\u7684\u7f51\u5361label
192.168.200.102\/24 dev eth2 label eth2:1
}
\u200b
#\u914d\u7f6e\u76d1\u63a7\u7f51\u7edc\u63a5\u53e3\uff0c\u4e00\u65e6\u51fa\u73b0\u6545\u969c\uff0c\u5219\u8f6c\u4e3aFAULT\u72b6\u6001\u5b9e\u73b0\u5730\u5740\u8f6c\u79fb
track_interface {
eth0
eth1
...
}
<\/code><\/pre>\n\n\n\n\u5b9e\u73b0\u72ec\u7acb\u5b50\u914d\u7f6e\u6587\u4ef6<\/h2>\n\n\n\n
\u5f53\u751f\u4ea7\u73af\u5883\u590d\u6742\u65f6\uff0c \/etc\/keepalived\/keepalived.conf \u6587\u4ef6\u4e2d\u5185\u5bb9\u8fc7\u591a\uff0c\u4e0d\u6613\u7ba1\u7406\uff0c\u53ef\u4ee5\u5c06\u4e0d\u540c\u96c6\u7fa4\u7684\u914d\u7f6e\uff0c\u6bd4\u5982\uff1a\u4e0d\u540c\u96c6\u7fa4\u7684VIP\u914d\u7f6e\u653e\u5728\u72ec\u7acb\u7684\u5b50\u914d\u7f6e\u6587\u4ef6\u4e2d\u5229\u7528include \u6307\u4ee4\u53ef\u4ee5\u5b9e\u73b0\u5305\u542b\u5b50\u914d\u7f6e\u6587\u4ef6<\/p>\n\n\n\n
include \/etc\/keepalived\/conf.d\/*.conf<\/code><\/pre>\n\n\n\n\u62a2\u5360\u6a21\u5f0f\u548c\u975e\u62a2\u5360\u6a21\u5f0f<\/h2>\n\n\n\n
\u975e\u62a2\u5360\u6a21\u5f0f nopreempt<\/strong><\/p>\n\n\n\n\u9ed8\u8ba4\u4e3a\u62a2\u5360\u6a21\u5f0fpreempt\uff0c\u5373\u5f53\u9ad8\u4f18\u5148\u7ea7\u7684\u4e3b\u673a\u6062\u590d\u5728\u7ebf\u540e\uff0c\u4f1a\u62a2\u5360\u4f4e\u5148\u7ea7\u7684\u4e3b\u673a\u7684master\u89d2\u8272\uff0c\u9020\u6210\u7f51\u7edc\u6296\u52a8\uff0c\u5efa\u8bae\u8bbe\u7f6e\u4e3a\u975e\u62a2\u5360\u6a21\u5f0f nopreempt \uff0c\u5373\u9ad8\u4f18\u5148\u7ea7\u4e3b\u673a\u6062\u590d\u540e\uff0c\u5e76\u4e0d\u4f1a\u62a2\u5360\u4f4e\u4f18\u5148\u7ea7\u4e3b\u673a\u7684master\u89d2\u8272\u3002<\/p>\n\n\n\n
\u6ce8\u610f\uff1a\u8981\u5173\u95ed VIP\u62a2\u5360\uff0c\u5fc5\u987b\u5c06\u5404 keepalived \u670d\u52a1\u5668state\u914d\u7f6e\u4e3aBACKUP<\/strong><\/p>\n\n\n\n#ha1\u4e3b\u673a\u914d\u7f6e\r\nvrrp_instance VI_1 {\r\nstate BACKUP \r\ninterface eth0\r\nvirtual_router_id 66\r\npriority 100 \r\nadvert_int 1\r\nnopreempt \r\n...\r\n}\r\n\r\n#ha2\u4e3b\u673a\u914d\u7f6e\r\nvrrp_instance VI_1 {\r\nstate BACKUP \r\ninterface eth0\r\nvirtual_router_id 66\r\npriority 80 \r\nadvert_int 1\r\nnopreempt \r\n...\r\n}<\/code><\/pre>\n\n\n\n\u62a2\u5360\u5ef6\u8fdf\u6a21\u5f0f preempt_delay<\/strong><\/p>\n\n\n\n\u62a2\u5360\u5ef6\u8fdf\u6a21\u5f0f\uff0c\u5373\u4f18\u5148\u7ea7\u9ad8\u7684\u4e3b\u673a\u6062\u590d\u540e\uff0c\u4e0d\u4f1a\u7acb\u5373\u62a2\u56deVIP\uff0c\u800c\u662f\u5ef6\u8fdf\u4e00\u6bb5\u65f6\u95f4\uff08\u9ed8\u8ba4300s\uff09\u518d\u62a2\u56deVIP\u3002<\/p>\n\n\n\n
\u6ce8\u610f\uff1a\u9700\u8981\u5404keepalived\u670d\u52a1\u5668state\u4e3aBACKUP,\u5e76\u4e14\u4e0d\u8981\u542f\u7528 vrrp_strict<\/strong><\/p>\n\n\n\n#ha1\u4e3b\u673a\u914d\u7f6e
vrrp_instance VI_1 {
state BACKUP
interface eth0
virtual_router_id 66
priority 100
advert_int 1
preempt_delay 60
...
}
\u200b
#ha2\u4e3b\u673a\u914d\u7f6e
vrrp_instance VI_1 {
state BACKUP
interface eth0
virtual_router_id 66
priority 80
advert_int 1
...
}<\/code><\/pre>\n\n\n\nVIP\u5355\u64ad\u914d\u7f6e<\/h2>\n\n\n\n
\u9ed8\u8ba4keepalived\u4e3b\u673a\u4e4b\u95f4\u5229\u7528\u591a\u64ad\u76f8\u4e92\u901a\u544a\u6d88\u606f\uff0c\u4f1a\u9020\u6210\u7f51\u7edc\u62e5\u585e\uff0c\u53ef\u4ee5\u66ff\u6362\u6210\u5355\u64ad\uff0c\u51cf\u5c11\u7f51\u7edc\u6d41\u91cf\u3002<\/p>\n\n\n\n
\u6ce8\u610f\uff1a\u542f\u7528 vrrp_strict \u65f6\uff0c\u4e0d\u80fd\u542f\u7528\u5355\u64ad<\/strong><\/p>\n\n\n\nunicast_src_ip <IPADDR> #\u6307\u5b9a\u53d1\u9001\u5355\u64ad\u7684\u6e90IP
unicast_peer {
<IPADDR> #\u6307\u5b9a\u63a5\u6536\u5355\u64ad\u7684\u5bf9\u65b9\u76ee\u6807\u4e3b\u673aIP
......
}<\/code><\/pre>\n\n\n\n\u8303\u4f8b\uff1a<\/p>\n\n\n\n
ha1\u4e3b\u673a\u914d\u7f6e<\/strong><\/p>\n\n\n\nvrrp_instance VI_1 {
state MASTER
interface eth0
virtual_router_id 66
priority 100
advert_int 1
authentication {
auth_type PASS
auth_pass 123456
}
virtual_ipaddress {
10.0.0.10\/24 dev eth0 label eth0:1
}
unicast_src_ip 10.0.0.8
unicast_peer{
10.0.0.18
}
}<\/code><\/pre>\n\n\n\nha2\u4e3b\u673a\u914d\u7f6e<\/strong><\/p>\n\n\n\nvrrp_instance VI_1 {
state BACKUP
interface eth0
virtual_router_id 66
priority 80
advert_int 1
authentication {
auth_type PASS
auth_pass 123456
}
virtual_ipaddress {
10.0.0.10\/24 dev eth0 label eth0:1
}
unicast_src_ip 10.0.0.18
unicast_peer{
10.0.0.8
}
}<\/code><\/pre>\n\n\n\n\u4e24\u4e2aIP\u4e4b\u95f4\u7684\u6293\u5305\u547d\u4ee4<\/p>\n\n\n\n
tcpdump -i eth0 -nn src host 10.0.0.8 and dst host 10.0.0.18<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"\u914d\u7f6e\u6587\u4ef6\u7ec4\u6210\u90e8\u5206 \u914d\u7f6e\u6587\u4ef6 \u914d\u7f6e\u6587\u4ef6\u7ec4\u6210 GLOBAL CONFIGURATION \u5b9a\u4e49\u90ae\u4ef6\u914d\u7f6e\uff0croute_id\uff0cvrrp\u914d\u7f6e\uff0c\u591a\u64ad\u5730\u5740\u7b49 VRRP CONFIGURATION \u5b9a\u4e49\u6bcf\u4e2avrrp\u865a\u62df\u8def\u7531\u5668 LVS CONFIGURATIO…<\/p>\n","protected":false},"author":1,"featured_media":95,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7],"tags":[23,22],"topic":[],"class_list":["post-93","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-linux","tag-keepalived","tag-22"],"_links":{"self":[{"href":"https:\/\/frogvps.com\/index.php?rest_route=\/wp\/v2\/posts\/93","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/frogvps.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/frogvps.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/frogvps.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/frogvps.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=93"}],"version-history":[{"count":3,"href":"https:\/\/frogvps.com\/index.php?rest_route=\/wp\/v2\/posts\/93\/revisions"}],"predecessor-version":[{"id":99,"href":"https:\/\/frogvps.com\/index.php?rest_route=\/wp\/v2\/posts\/93\/revisions\/99"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/frogvps.com\/index.php?rest_route=\/wp\/v2\/media\/95"}],"wp:attachment":[{"href":"https:\/\/frogvps.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=93"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/frogvps.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=93"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/frogvps.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=93"},{"taxonomy":"topic","embeddable":true,"href":"https:\/\/frogvps.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftopic&post=93"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}