• LVS实战笔记-DR单网段

    LVS实战笔记-DR单网段

    创建虚拟机
    set vmcentos[0]=CentOS7X64-Client
set vmcentos[1]=CentOS7X64-Gateway
set vmcentos[2]=CentOS7X64-LVS101
set vmcentos[3]=CentOS7X64-RS201
set vmcentos[4]=CentOS7X64-RS202

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    set vmsour="d:\VirtualMachine.Spaces\CentOS7X64.Core\CentOS7X64.Core.vmx"
:: vmname注意不能用引号，否则被作为字符串中字符处理
set vmname=%vmcentos[0]%
set vmdest="d:\VirtualMachine.Spaces\%vmname%\%vmname%.vmx"
vmrun.exe -T ws clone %vmsour%  %vmdest%  full -cloneName=%vmname%

set vmname=%vmcentos[1]%
set vmdest="d:\VirtualMachine.Spaces\%vmname%\%vmname%.vmx"
vmrun.exe -T ws clone %vmsour%  %vmdest%  full -cloneName=%vmname%

set vmname=%vmcentos[2]%
set vmdest="d:\VirtualMachine.Spaces\%vmname%\%vmname%.vmx"
vmrun.exe -T ws clone %vmsour%  %vmdest%  full -cloneName=%vmname%

set vmname=%vmcentos[3]%
set vmdest="d:\VirtualMachine.Spaces\%vmname%\%vmname%.vmx"
vmrun.exe -T ws clone %vmsour%  %vmdest%  full -cloneName=%vmname%

set vmname=%vmcentos[4]%
set vmdest="d:\VirtualMachine.Spaces\%vmname%\%vmname%.vmx"
vmrun.exe -T ws clone %vmsour%  %vmdest%  full -cloneName=%vmname%


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    快照备份-20220128
    :: vmname注意不能用引号，否则被作为字符串中字符处理
set vmname=%vmcentos[0]%
set vmpath="d:\VirtualMachine.Spaces\%vmname%\%vmname%.vmx"
set vmshot=20220128
vmrun.exe -T ws snapshot %vmpath% %vmshot%
vmrun.exe -T ws listSnapshots %vmpath%

set vmname=%vmcentos[1]%
set vmpath="d:\VirtualMachine.Spaces\%vmname%\%vmname%.vmx"
set vmshot=20220128
vmrun.exe -T ws snapshot %vmpath% %vmshot%
vmrun.exe -T ws listSnapshots %vmpath%

set vmname=%vmcentos[2]%
set vmpath="d:\VirtualMachine.Spaces\%vmname%\%vmname%.vmx"
set vmshot=20220128
vmrun.exe -T ws snapshot %vmpath% %vmshot%
vmrun.exe -T ws listSnapshots %vmpath%

set vmname=%vmcentos[3]%
set vmpath="d:\VirtualMachine.Spaces\%vmname%\%vmname%.vmx"
set vmshot=20220128
vmrun.exe -T ws snapshot %vmpath% %vmshot%
vmrun.exe -T ws listSnapshots %vmpath%

set vmname=%vmcentos[4]%
set vmpath="d:\VirtualMachine.Spaces\%vmname%\%vmname%.vmx"
set vmshot=20220128
vmrun.exe -T ws snapshot %vmpath% %vmshot%
vmrun.exe -T ws listSnapshots %vmpath%


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    启动虚拟机
    :: vmname注意不能用引号，否则被作为字符串中字符处理
set vmname=%vmcentos[0]%
set vmpath="d:\VirtualMachine.Spaces\%vmname%\%vmname%.vmx"
vmrun -T ws start %vmpath%

set vmname=%vmcentos[1]%
set vmpath="d:\VirtualMachine.Spaces\%vmname%\%vmname%.vmx"
vmrun -T ws start %vmpath%

set vmname=%vmcentos[2]%
set vmpath="d:\VirtualMachine.Spaces\%vmname%\%vmname%.vmx"
vmrun -T ws start %vmpath%

set vmname=%vmcentos[3]%
set vmpath="d:\VirtualMachine.Spaces\%vmname%\%vmname%.vmx"
vmrun -T ws start %vmpath%

set vmname=%vmcentos[4]%
set vmpath="d:\VirtualMachine.Spaces\%vmname%\%vmname%.vmx"
vmrun -T ws start %vmpath%


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    挂起虚拟机
    :: vmname注意不能用引号，否则被作为字符串中字符处理
set vmname=%vmcentos[0]%
set vmpath="d:\VirtualMachine.Spaces\%vmname%\%vmname%.vmx"
vmrun -T ws suspend %vmpath%

set vmname=%vmcentos[1]%
set vmpath="d:\VirtualMachine.Spaces\%vmname%\%vmname%.vmx"
vmrun -T ws suspend %vmpath%

set vmname=%vmcentos[2]%
set vmpath="d:\VirtualMachine.Spaces\%vmname%\%vmname%.vmx"
vmrun -T ws suspend %vmpath%

set vmname=%vmcentos[3]%
set vmpath="d:\VirtualMachine.Spaces\%vmname%\%vmname%.vmx"
vmrun -T ws suspend %vmpath%

set vmname=%vmcentos[4]%
set vmpath="d:\VirtualMachine.Spaces\%vmname%\%vmname%.vmx"
vmrun -T ws suspend %vmpath%


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    还原虚拟机
    :: vmname注意不能用引号，否则被作为字符串中字符处理
set vmname=%vmcentos[0]%
set vmpath="d:\VirtualMachine.Spaces\%vmname%\%vmname%.vmx"
set vmshot=20220128
vmrun.exe -T ws revertToSnapshot %vmpath% %vmshot%

set vmname=%vmcentos[1]%
set vmpath="d:\VirtualMachine.Spaces\%vmname%\%vmname%.vmx"
set vmshot=20220128
vmrun.exe -T ws revertToSnapshot %vmpath% %vmshot%

set vmname=%vmcentos[2]%
set vmpath="d:\VirtualMachine.Spaces\%vmname%\%vmname%.vmx"
set vmshot=20220128
vmrun.exe -T ws revertToSnapshot %vmpath% %vmshot%

set vmname=%vmcentos[3]%
set vmpath="d:\VirtualMachine.Spaces\%vmname%\%vmname%.vmx"
set vmshot=20220128
vmrun.exe -T ws revertToSnapshot %vmpath% %vmshot%

set vmname=%vmcentos[4]%
set vmpath="d:\VirtualMachine.Spaces\%vmname%\%vmname%.vmx"
set vmshot=20220128
vmrun.exe -T ws revertToSnapshot %vmpath% %vmshot%


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    关闭虚拟机
    :: vmname注意不能用引号，否则被作为字符串中字符处理
set vmname=%vmcentos[0]%
set vmpath="d:\VirtualMachine.Spaces\%vmname%\%vmname%.vmx"
vmrun -T ws stop %vmpath%

set vmname=%vmcentos[1]%
set vmpath="d:\VirtualMachine.Spaces\%vmname%\%vmname%.vmx"
vmrun -T ws stop %vmpath%

set vmname=%vmcentos[2]%
set vmpath="d:\VirtualMachine.Spaces\%vmname%\%vmname%.vmx"
vmrun -T ws stop %vmpath%

set vmname=%vmcentos[3]%
set vmpath="d:\VirtualMachine.Spaces\%vmname%\%vmname%.vmx"
vmrun -T ws stop %vmpath%

set vmname=%vmcentos[4]%
set vmpath="d:\VirtualMachine.Spaces\%vmname%\%vmname%.vmx"
vmrun -T ws stop %vmpath%


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    配置DR模式：单网段

    实验网络规划
    客户端GWLVSRS
    网段CentOS7X64-Client
    		CentOS7X64-GatewayCentOS7X64-LVS101CentOS7X64-RS201
    CentOS7X64-RS202
    133.15.6.0/24
    (NAT模式)    		133.15.6.199
    GW: 133.15.6.200    		133.15.6.200
    199.31.81.0/24
    (仅主机模式)    		199.31.81.200199.31.81.101
    GW: 199.31.81.200    		199.31.81.201
    199.31.81.202
    GW: 199.31.81.200
    lo网卡199.31.81.100199.31.81.100
    199.31.81.100

    注意：一定要关闭防火墙，或是添加相关端口！

    配置hostname及ipaddress
    # 使用模板的ip（133.15.6.81）登录, 随机配置相关信息
ssh root@133.15.6.81

# CLI-199
hostnamectl set-hostname cli-199
cp /etc/sysconfig/network-scripts/ifcfg-ens33 /etc/sysconfig/network-scripts/ifcfg-ens33.bak
cat /etc/sysconfig/network-scripts/ifcfg-ens33
sed -i 's/IPADDR=133.15.6.81/IPADDR=133.15.6.199/g' /etc/sysconfig/network-scripts/ifcfg-ens33
sed -i 's/^GATEWAY=133.15.6.1/GATEWAY=133.15.6.200/g' /etc/sysconfig/network-scripts/ifcfg-ens33
systemctl restart network


# GW200
hostnamectl set-hostname gw-200
cp /etc/sysconfig/network-scripts/ifcfg-ens33 /etc/sysconfig/network-scripts/ifcfg-ens33.bak
cat /etc/sysconfig/network-scripts/ifcfg-ens33
sed -i 's/IPADDR=133.15.6.81/IPADDR=133.15.6.200/g' /etc/sysconfig/network-scripts/ifcfg-ens33
sed -i 's/^GATEWAY=133.15.6.1//g' /etc/sysconfig/network-scripts/ifcfg-ens33

cp /etc/sysconfig/network-scripts/ifcfg-ens33.bak /etc/sysconfig/network-scripts/ifcfg-ens38
sed -i 's/ens33/ens38/g' /etc/sysconfig/network-scripts/ifcfg-ens38
sed -i 's/IPADDR=133.15.6.81/IPADDR=199.31.81.200/g' /etc/sysconfig/network-scripts/ifcfg-ens38
sed -i 's/^GATEWAY=133.15.6.1//g' /etc/sysconfig/network-scripts/ifcfg-ens38
systemctl restart network


# LVS101
hostnamectl set-hostname LVS-101
cp /etc/sysconfig/network-scripts/ifcfg-ens33 /etc/sysconfig/network-scripts/ifcfg-ens33.bak
cat /etc/sysconfig/network-scripts/ifcfg-ens33
sed -i 's/IPADDR=133.15.6.81/IPADDR=199.31.81.101/g' /etc/sysconfig/network-scripts/ifcfg-ens33
sed -i 's/^GATEWAY=133.15.6.1/GATEWAY=133.15.6.200/g' /etc/sysconfig/network-scripts/ifcfg-ens33
systemctl restart network


# RS201
hostnamectl set-hostname RS-201
cp /etc/sysconfig/network-scripts/ifcfg-ens33 /etc/sysconfig/network-scripts/ifcfg-ens33.bak
cat /etc/sysconfig/network-scripts/ifcfg-ens33
sed -i 's/IPADDR=133.15.6.81/IPADDR=199.31.81.201/g' /etc/sysconfig/network-scripts/ifcfg-ens33
sed -i 's/^GATEWAY=133.15.6.1/GATEWAY=199.31.81.200/g' /etc/sysconfig/network-scripts/ifcfg-ens33
systemctl restart network


# RS202
hostnamectl set-hostname RS-202
cp /etc/sysconfig/network-scripts/ifcfg-ens33 /etc/sysconfig/network-scripts/ifcfg-ens33.bak
cat /etc/sysconfig/network-scripts/ifcfg-ens33
sed -i 's/IPADDR=133.15.6.81/IPADDR=199.31.81.202/g' /etc/sysconfig/network-scripts/ifcfg-ens33
sed -i 's/^GATEWAY=133.15.6.1/GATEWAY=199.31.81.200/g' /etc/sysconfig/network-scripts/ifcfg-ens33
systemctl restart network


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    注意：网络配置好了一定要移除附加的桥接网络，否则网络route出现问题，无法访问

    公共配置
    setenforce 0
sed -i 's/SELINUX=enforcing/SELINUX=disabled/g' /etc/selinux/config

systemctl disable firewalld 
systemctl stop firewalld

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    CentOS7X64-Client配置
    # 确认路由
route -n
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
0.0.0.0         192.168.0.1     0.0.0.0         UG    101    0        0 ens37
0.0.0.0         133.15.6.200    0.0.0.0         UG    102    0        0 ens33
133.15.6.0      0.0.0.0         255.255.255.0   U     102    0        0 ens33
192.168.0.0     0.0.0.0         255.255.255.0   U     101    0        0 ens37


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    CentOS7X64-Gateway配置

    配置路由

    # 开启net.ipv4.ip_forward
echo net.ipv4.ip_forward=1 >> /etc/sysctl.conf
# 加载并生效
sysctl -p


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    注意：不能配置网关为自身，否则转发出现问题

    CentOS7X64-LVS101配置

    配置ipvsadm

    yum install ipvsadm -y

#增加集群
ipvsadm -A -t 199.31.81.100:80 -s rr
#增加RS服务器
ipvsadm -a -t 199.31.81.100:80 -r 199.31.81.201 -g
ipvsadm -a -t 199.31.81.100:80 -r 199.31.81.202 -g
ipvsadm -Ln

# 保存规则
ipvsadm -S -n > /etc/sysconfig/ipvsadm
sudo systemctl enable ipvsadm
sudo systemctl start ipvsadm

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    配置lo网卡

    cp /etc/sysconfig/network-scripts/ifcfg-lo /etc/sysconfig/network-scripts/ifcfg-lo.bak
echo '' >> /etc/sysconfig/network-scripts/ifcfg-lo
echo IPADDR1=199.31.81.100 >> /etc/sysconfig/network-scripts/ifcfg-lo
echo NETMASK1=255.255.255.255 >> /etc/sysconfig/network-scripts/ifcfg-lo
echo PREFIX1=32 >> /etc/sysconfig/network-scripts/ifcfg-lo
systemctl restart network

# 临时配置lo网卡为vip 199.31.81.100
ifconfig lo:0 199.31.81.100/32  # 注意这里掩码只能是32/0, 否则转发有问题

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    CentOS7X64-RS201配置

    配置httpd服务

    yum install -y httpd
echo 199.31.81.201 RS201 > /var/www/html/index.html
systemctl start httpd
systemctl enable httpd
curl 199.31.81.201

# 移除附加外网适配器，ens33切换到仅主机模式

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    配置lo网卡

    echo 1 > /proc/sys/net/ipv4/conf/all/arp_ignore
echo 1 > /proc/sys/net/ipv4/conf/lo/arp_ignore
echo 2 > /proc/sys/net/ipv4/conf/all/arp_announce
echo 2 > /proc/sys/net/ipv4/conf/lo/arp_announce

cp /etc/sysconfig/network-scripts/ifcfg-lo /etc/sysconfig/network-scripts/ifcfg-lo.bak
echo '' >> /etc/sysconfig/network-scripts/ifcfg-lo
echo IPADDR1=199.31.81.100 >> /etc/sysconfig/network-scripts/ifcfg-lo
echo NETMASK1=255.255.255.255 >> /etc/sysconfig/network-scripts/ifcfg-lo
echo PREFIX1=32 >> /etc/sysconfig/network-scripts/ifcfg-lo
systemctl restart network

# 临时配置lo网卡为vip 199.31.81.100
ifconfig lo:0 199.31.81.100/32  # 注意这里掩码只能是32/0, 否则转发有问题

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    CentOS7X64-RS202配置

    配置httpd服务

    yum install -y httpd
echo 199.31.81.202 RS202 > /var/www/html/index.html
systemctl start httpd
systemctl enable httpd
curl 199.31.81.202

# 移除附加外网适配器，ens33切换到仅主机模式

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    配置lo网卡

    echo 1 > /proc/sys/net/ipv4/conf/all/arp_ignore
echo 1 > /proc/sys/net/ipv4/conf/lo/arp_ignore
echo 2 > /proc/sys/net/ipv4/conf/all/arp_announce
echo 2 > /proc/sys/net/ipv4/conf/lo/arp_announce

cp /etc/sysconfig/network-scripts/ifcfg-lo /etc/sysconfig/network-scripts/ifcfg-lo.bak
echo '' >> /etc/sysconfig/network-scripts/ifcfg-lo
echo IPADDR1=199.31.81.100 >> /etc/sysconfig/network-scripts/ifcfg-lo
echo NETMASK1=255.255.255.255 >> /etc/sysconfig/network-scripts/ifcfg-lo
echo PREFIX1=32 >> /etc/sysconfig/network-scripts/ifcfg-lo
systemctl restart network

# 临时配置lo网卡为vip 199.31.81.100
ifconfig lo:0 199.31.81.100/32  # 注意这里掩码只能是32/0, 否则转发有问题

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    在客户端上测试

    在这里插入图片描述

    常用操作命令

    # 查看规则
cat /proc/net/ip_vs
# 查看连接
cat /proc/net/ip_vs_conn
# 查看当前规则
ipvsadm-save -n 或 sudo ipvsadm -S -n

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    在这里插入图片描述

    # 保存规则
sudo ipvsadm -S -n > ipvsadm & sudo mv ipvsadm /etc/sysconfig/
# 清理规则
sudo ipvsadm -C
# 重载规则
sudo ipvsadm -R < /etc/sysconfig/ipvsadm

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    在这里插入图片描述

    # 查询ipvsadm相关信息
rpm -ql ipvsadm

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    在这里插入图片描述

    # 配置开机启动, 会清除/etc/sysconfig/ipvsadm 的内容，测试不通过
sudo systemctl enable ipvsadm
sudo systemctl start ipvsadm

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    在这里插入图片描述

    在这里插入图片描述

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  • 原文地址：https://blog.csdn.net/yidichaxiang/article/details/126845630