Shulou(Shulou.com)06/02 Report--

Method 1: LVS scheduler-- one NAT mode scheduling server: Linux-CentOS7.4 IP address: 192.168.80.100 (internal network) 192.168.90.100 (external network) two Web servers: Linux-CentOS7.4 IP address: 192.168.80.101 (SERVER AA) IP address: 192.168.80.102 (SERVER BB) client: take win7 as an example Used to test and verify IP address: 192.168.90.10 (public network) systemctl stop firewalld / / turn off firewall setenforce 0 / / turn off monitoring modprobe ip_vs / / load ip_vs module cat / proc/net/ip_vs / / View ip_vs version information rpm-ivh / mnt/Packages/ipvsadm-1.27-7.el7.x86_64.rpm or Yum install ipvsadm-yipvsadm-v / / View the version

Ls / mnt/Packages/ | grep ipvsadm / / check whether this software package is available

Ifconfig / / check the network card

Add a VMnet2 (host-only mode) Nic

Ifconfig / / check to see if the network card has been added

Cd / etc/sysconfig/network-scripts/cp-p ifcfg-ens32 ifcfg-ens34 / / copy an ens32 file and change the name to ens34vi ifcfg-ens34 / / into the ens34 file

Replace it with PROXY_METHOD=noneDEFROUTE=yesIPV4_FAILURE_FATAL=noIPV6INIT=yesIPV6_AUTOCONF=yesIPV6_DEFROUTE=yesIPV6_FAILURE_FATAL=noIPV6_ADDR_GEN_MODE=stable-privacyNAME=ens34DEVICE=ens34ONBOOT=YESIPADDR=192.168.90.100PREFIX=24IPV6_PRIVACY=no:wq / / Save exit systemctl restart network / / restart the network card ifconfig / / check whether the network card has been modified

Ipvsadm-A-t 192.168.90.100 ipvsadm 80-s rr Note: "- A" means adding virtual server "- t" to specify VIP address and TCP port "- s" to specify load scheduling algorithm-rr, wrr, lc, Wlcipvsadm-a-t 192.168.90.100 wlcipvsadm 80-r 192.168.80.101purl 80-m / / add server node ipvsadm-a-t 192.168.90.100 ipvsadm 80-m / / add server node ipvsadm-port / add "- n" to display address and port information in numeric form

Cd / / back to the root directory ipvsadm-d-r 192.168.80.102 ipvsadm 80-t 192.168.90.100 ipvsadm 80 / / Delete 102server node ipvsadm-port / / add "- n" to display address and port information in numeric form

Ipvsadm-D-t 192.168.90.100 ipvsadm-Ln / / add "- n" to display address and port information in numeric form

Vi nat.sh / / create and enter the nat.sh file #! / bin/bashecho "1" > / proc/sys/net/ipv4/ip_forward / / enable routing address translation ipvsadm-C / / clear all records in the kernel virtual server table ipvsadm-A-t 192.168.90.100bin/bashecho 80-s rr / / create a virtual server ipvsadm-a-t 192.168.90.100purl 80-r 192.168 .80.101Ln:wq 80-m / add server node ipvsadm-a-t 192.168.90.100 ipvsadm 80-r 192.168.80.102 Ln:wq / / View node status chmod-Ln:wq / / Save exit chmod + x nat.sh / / give nat.sh file permission. / nat.sh

On the 80.101 virtual machine, systemctl stop firewalld / / turn off firewall setenforce 0 / / turn off monitoring yum install httpd-y / / install httpdvi / etc/httpd/conf/httpd.confServerName www.example.com:80 / / find this line and remove #

: wq / / Save exit cd / var/www/html/echo "SERVER AA" > index.htmlsystemctl start httpd / / restart httpdvi / etc/sysconfig/network-scripts/ifcfg-ens32 add GATEWAY=192.168.80.100 on the last line

Systemctl start httpd/ / restart httpdsystemctl restart network / / restart the network card on the 80.102 virtual machine systemctl stop firewalld / / close the firewall setenforce 0 / / close the monitoring yum install httpd-y / / install httpdvi / etc/httpd/conf/httpd.confServerName www.example.com:80 / / find this line and remove #

: wq / / Save exit cd / var/www/html/echo "SERVER BB" > index.htmlsystemctl start httpd / / restart httpdvi / etc/sysconfig/network-scripts/ifcfg-ens32 add GATEWAY=192.168.80.100 on the last line

Systemctl start httpd / / restart httpdsystemctl restart network / / restart the network card

Enter 192.168.90.100 for the web page

Method 2: LVS scheduler-- one DR mode scheduling server: Linux-CentOS7.4 IP address: two 192.168.80.100Web servers: Linux-CentOS7.4 IP address: 192.168.80.101 (SERVER AA) IP address: 192.168.80.102 (SERVER BB) client: take win7 as an example Used for testing and verifying IP address: 192.168.80.280.100 virtual machine restore 80.100 virtual machine to snapshot on the basis of method 1 systemctl stop firewalld / / turn off firewall setenforce 0 / / turn off monitoring modprobe ip_vsyum install ipvsadm-yipvsadm-vvi dr.shroud Binchfconfig ens32:0 192.168.80.188 broadcast 192.168.80.188 netmask 255.255.255.255 uproute add-host 192.168 .80.188 dev ens32:0ipvsadm-Cipvsadm-A-t 192.168.80.188 rripvsadm 80-s rripvsadm-a-t 192.168.80.188 rripvsadm 80-r 192.168.80.101 rripvsadm 80-gipvsadm-a-t 192.168.80.188 gipvsadm 80-r 192.168.80.102 rripvsadm 80-Ln:wqchmod + x dr.sh./dr.shifconfig

80.102 virtual machine

Vi web.shroudanxambinapash bashparts ifconfig lo:0 192.168.80.188 broadcast 192.168.80.188 netmask 255.255.255.255 uproute add-host 192.168.80.188 dev lo:0echo "1" > / proc/sys/net/ipv4/conf/lo/arp_ignoreecho "2" > / proc/sys/net/ipv4/conf/lo/arp_announceecho "1" > / proc/sys/net/ipv4/conf/all/arp_ignoreecho "2" > / proc/ Sys/net/ipv4/conf/all/arp_announcesysctl-p & > / dev/null:wqchmod + x web.sh./web.shifconfig

Scp web.sh root@192.168.80.101:/root / / transfer the web.sh file to the / root directory of the 192.168.80.101 virtual machine. Yes sets the password for root to write in 80.101. / web.shifconfig

Enter 192.168.80.188 on the web page

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