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|\n|-----|--------------|--------------------------------------------------------|\n| lb0 | LVS director | 192.168.66.11(DIP)、192.168.55.11（external interface) |\n| lb1 | LVS director | 192.168.66.12(DIP)、192.168.55.12（external interface) |\n| -   | VIP          | 192.168.55.100                                         |\n| rs0 | RealServer   | 192.168.66.111(RIP)                                    |\n| rs1 | RealServer   | 192.168.66.112(RIP)                                    |\n| cl0 | Client       | 192.168.55.200                                         |\n\n## start\n\n```bash\nvagrant up lb0 lb1 \u0026\u0026 vagrant reload lb0 lb1\n\nvagrant up rs0 rs1\n\nvagrant up cl0\n```\n\n### lb0 interface\n\n```bash\nvagrant@lb0:~$ ip a\n1: lo: \u003cLOOPBACK,UP,LOWER_UP\u003e mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000\n    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00\n    inet 127.0.0.1/8 scope host lo\n       valid_lft forever preferred_lft forever\n    inet6 ::1/128 scope host \n       valid_lft forever preferred_lft forever\n2: enp0s3: \u003cBROADCAST,MULTICAST,UP,LOWER_UP\u003e mtu 1500 qdisc fq_codel state UP group default qlen 1000\n    link/ether 02:56:36:6f:95:58 brd ff:ff:ff:ff:ff:ff\n    inet 10.0.2.15/24 brd 10.0.2.255 scope global dynamic enp0s3\n       valid_lft 85750sec preferred_lft 85750sec\n    inet6 fe80::56:36ff:fe6f:9558/64 scope link \n       valid_lft forever preferred_lft forever\n3: enp0s8: \u003cBROADCAST,MULTICAST,UP,LOWER_UP\u003e mtu 1500 qdisc fq_codel state UP group default qlen 1000\n    link/ether 08:00:27:90:fd:43 brd ff:ff:ff:ff:ff:ff\n    inet 192.168.66.11/24 brd 192.168.66.255 scope global enp0s8\n       valid_lft forever preferred_lft forever\n    inet 192.168.66.100/32 scope global enp0s8\n       valid_lft forever preferred_lft forever\n    inet 192.168.55.100/32 scope global enp0s8\n       valid_lft forever preferred_lft forever\n    inet6 fe80::a00:27ff:fe90:fd43/64 scope link \n       valid_lft forever preferred_lft forever\n4: enp0s9: \u003cBROADCAST,MULTICAST,UP,LOWER_UP\u003e mtu 1500 qdisc fq_codel state UP group default qlen 1000\n    link/ether 08:00:27:9c:bb:05 brd ff:ff:ff:ff:ff:ff\n    inet 192.168.55.11/24 brd 192.168.55.255 scope global enp0s9\n       valid_lft forever preferred_lft forever\n    inet6 fe80::a00:27ff:fe9c:bb05/64 scope link \n       valid_lft forever preferred_lft forever\n```\n\n```bash\nroot@lb0:~# ipvsadm -L -n\nIP Virtual Server version 1.2.1 (size=4096)\nProt LocalAddress:Port Scheduler Flags\n  -\u003e RemoteAddress:Port           Forward Weight ActiveConn InActConn\nTCP  192.168.55.100:80 wrr\n  -\u003e 192.168.66.111:80            Masq    100    0          0         \n  -\u003e 192.168.66.112:80            Masq    100    0          0         \n\n```\n\n### rs0 interface\n\n```bash\nvagrant@rs0:~$ ip a\n1: lo: \u003cLOOPBACK,UP,LOWER_UP\u003e mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000\n    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00\n    inet 127.0.0.1/8 scope host lo\n       valid_lft forever preferred_lft forever\n    inet6 ::1/128 scope host \n       valid_lft forever preferred_lft forever\n2: enp0s3: \u003cBROADCAST,MULTICAST,UP,LOWER_UP\u003e mtu 1500 qdisc fq_codel state UP group default qlen 1000\n    link/ether 02:56:36:6f:95:58 brd ff:ff:ff:ff:ff:ff\n    inet 10.0.2.15/24 brd 10.0.2.255 scope global dynamic enp0s3\n       valid_lft 83646sec preferred_lft 83646sec\n    inet6 fe80::56:36ff:fe6f:9558/64 scope link \n       valid_lft forever preferred_lft forever\n3: enp0s8: \u003cBROADCAST,MULTICAST,UP,LOWER_UP\u003e mtu 1500 qdisc fq_codel state UP group default qlen 1000\n    link/ether 08:00:27:05:30:c1 brd ff:ff:ff:ff:ff:ff\n    inet 192.168.66.111/24 brd 192.168.66.255 scope global enp0s8\n       valid_lft forever preferred_lft forever\n    inet6 fe80::a00:27ff:fe05:30c1/64 scope link \n       valid_lft forever preferred_lft forever\n```\n\n```bash\nvagrant@rs0:~$ route -n\nKernel IP routing table\nDestination     Gateway         Genmask         Flags Metric Ref    Use Iface\n0.0.0.0         192.168.66.100  0.0.0.0         UG    0      0        0 enp0s8\n0.0.0.0         10.0.2.2        0.0.0.0         UG    100    0        0 enp0s3\n10.0.2.0        0.0.0.0         255.255.255.0   U     0      0        0 enp0s3\n10.0.2.2        0.0.0.0         255.255.255.255 UH    100    0        0 enp0s3\n192.168.66.0    0.0.0.0         255.255.255.0   U     0      0        0 enp0s8\n```\n\n### cl0\n\n```bash\nvagrant@cl0:~$ curl http://192.168.55.100\nrs0\nvagrant@cl0:~$ curl http://192.168.55.100\nrs1\nvagrant@cl0:~$ curl http://192.168.55.100\nrs0\nvagrant@cl0:~$ curl http://192.168.55.100\nrs1\nvagrant@cl0:~$ curl http://192.168.55.100\nrs0\nvagrant@cl0:~$ curl http://192.168.55.100\nrs1\n```\n\n```bash\nvagrant halt rs1\n```\n\n```bash\nvagrant@cl0:~$ curl http://192.168.55.100\nrs0\nvagrant@cl0:~$ curl http://192.168.55.100\nrs0\nvagrant@cl0:~$ curl http://192.168.55.100\nrs0\n```\n\n```bash\n## compulsively --provision for `route add default gw \u003cGATEWAY\u003e`\nvagrant up rs1 --provision\n```\n\n## ref\n\n- [LVS+Iptables实现FULLNAT及原理分析](https://blog.dianduidian.com/post/lvs-snat%E5%8E%9F%E7%90%86%E5%88%86%E6%9E%90/)\n- [LVS-NAT 原理介绍和配置实践](https://wsgzao.github.io/post/lvs-nat/)\n- [lvs负载均衡-NAT与DR模型原理介绍](https://www.guaosi.com/2020/01/22/lvs-introduction-to-the-principle-of-NAT-and-DR-model/)\n- [LVS NAT](http://soft.dog/2018/06/04/lvs-nat/)","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fdyrnq%2Fipvs-vagrant","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fdyrnq%2Fipvs-vagrant","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fdyrnq%2Fipvs-vagrant/lists"}