linux及案例-cluster集群第二天准备一台Linux服务器安装ipvsadm软件包练习使用ip

NSDCLUSTERipvsadmLVS-NATLVS-DRipvsadm命令用TCP实现同一客户端，调度器分配固定服务ipvsadmipvsadmipvsadmipvsadmmanipvsadmipvsadm式如表-1表－1ipvsadm步骤一：使用命令增、删、改LVS集群规 [root@svr5~]#ipvsadmAt54swrrp302）realserver ----1 ----2 ----3 ----4 [root@svr5~]#ipvsadmEt54sshp304）readserver [root@svr5~]#ipvsadm–at54rm5）LVS [root@svr5~]#ipvsadm–Ln [root@svr5~]#serviceipvsadmsave [root@svr5~]#ipvsadm部署LVS-NAT集IPIPWeb、、使用轮询调度算法，真实服务器权重与其IP地址末尾数一41Director3RealServer、物理机作为客户端，拓扑结构如图-1图-[root@web1~]#vim/etc/sysconfig/network-scripts/ifcfg-[root@web1~]#serviceNetworkManager[root@web1~]#chkconfigNetworkManager[root@web1~]#servicenetwork[root@web1~]#iptables–F;serviceiptables[root@web2~]#vim/etc/sysconfig/network-scripts/ifcfg-[root@web2~]#serviceNetworkManager[root@web2~]#chkconfigNetworkManager[root@web2~]#servicenetwork[root@web2~]#iptables–F;serviceiptables[root@web3~]#vim/etc/sysconfig/network-scripts/ifcfg-[root@web3~]#serviceNetworkManager[root@web3~]#chkconfigNetworkManager[root@web3~]#servicenetwork[root@web3~]#iptablesF;serviceiptablessave2）Web[root@web1~]#echo“”>[root@web2~]#echo“”>[root@web3~]#echo“”/var/www/html/index.html3）Web[root@web1~]#servicehttpd[root@web2~]#servicehttpd[root@web3~]#servicehttpd[root@lvs~]#vim/etc/sysconfig/network-scripts/ifcfg-[root@lvs~]#vim/etc/sysconfig/network-scripts/ifcfg-[root@lvs~]#serviceNetworkManager[root@lvs~]#chkconfigNetworkManager[root@lvs~]#servicenetwork[root@lvs~]#iptables–F;serviceiptables[root@lvs~sedi'/ip_forward/s/0/1/'sysctl.conf[root@lvs~]#sysctl-1）[root@lvsPackagesrpmihvipvsadm-1.25-10.el6.x86_64.rpm[root@lvsPackages]#serviceipvsadm[root@lvsPackages]#chkconfigipvsadm步骤三：部署LVS-NAT模式调度[root@lvs~ipvsadmAt0:80swrr[root@lvs~]#ipvsadm-a-t0:80-r-w[root@lvs~]#ipvsadm-a-t0:80-r-w[root@lvs~ipvsadmat0:80rw3[root@lvs~]#ipvsadm[root@lvs~]#serviceipvsadm客户端使用curl命令反复连接，查看的页面是否会轮询到不同的后端部署LVS-DR集IPIPSNATDNATLVSIPLVSVIPWeb、使用轮询调度算法，真实服务器权重与其IP地址末尾数一4，1Linux1Director2RealServer、物理机作为客户端，拓扑结构如图-2图-[root@web1~]#vim/etc/sysconfig/network-scripts/ifcfg-[root@web1~]#vim/etc/sysconfig/network-scripts/ifcfg-[root@web1~]#.ipv4.conf.all.arp_ignore=net.ipv4.conf.lo.arp_ignore=net.ipv4.conf.lo.arp_announce=net.ipv4.conf.all.arp_announce=[root@web1~]#sysctl-[root@web1~]#serviceNetworkManager[root@web1~]#chkconfigNetworkManager[root@web1~]#servicenetwork[root@web1~]#iptables-F;serviceiptables[root@web2~]#vim/etc/sysconfig/network-scripts/ifcfg-[root@web2~]#vim/etc/sysconfig/network-scripts/ifcfg-[root@web2~]#.ipv4.conf.all.arp_ignore=net.ipv4.conf.lo.arp_ignore=net.ipv4.conf.lo.arp_announce=net.ipv4.conf.all.arp_announce=[root@web2~]#sysctl-[root@web2~]#serviceNetworkManager[root@web2~]#chkconfigNetworkManager[root@web2~]#servicenetwork[root@web2~]#iptablesF;serviceiptablessave2）Web[root@web1~]#echo“”>[root@web2~]#echo“”/var/www/html/index.html3）Web[root@web1~]#servicehttpdstart;chkconfighttpd[root@web2~]#servicehttpdstart;chkconfighttpd[root@lvs~]#vim/etc/sysconfig/network-scripts/ifcfg-[root@lvs~]#vim/etc/sysconfig/network-scripts/ifcfg-[root@lvs~]#serviceNetworkManager[root@lvs~]#chkconfigNetworkManager[root@lvs~]#servicenetwork[root@lvs~iptablesF;serviceiptablessave5）Linux[root@router~]#vim/etc/sysconfig/network-scripts/ifcfg-[root@router~]#vim/etc/sysconfig/network-scripts/ifcfg-[root@router~]#serviceNetworkManager[root@router~]#chkconfigNetworkManager[root@router~]#servicenetwork[root@router~]#iptablesF;serviceiptablessave6）LinuxSNAT、DNAT[root@router~]#sediip_forward/s/0/1sysctl.conf[root@router~]#sysctl-[root@router~]#iptables-tnat-APOSTROUTING-s/24-ptcp–j--to-source[root@router~]#iptables-tnat-APREROUTING-d0-ptcp--dport80jDNAT--to-destination[root@router~]#serviceiptables1）[root@lvsPackagesrpmihvipvsadm-1.25-10.el6.x86_64.rpm[root@lvsPackages]#serviceipvsadm[root@lvsPackages]#chkc