How to implement NAT script in LVS

This article is about how to implement NAT scripts in LVS. Xiaobian thinks it is quite practical, so share it with everyone for reference. Let's follow Xiaobian and have a look.

#!/ bin/bash## chkconfig: - 88 12# description: LVS script for LVS/NAT#. /etc/rc.d/init.d/functions#VIP=192.168.0.219DIP=192.168.10.10RIP1=192.168.10.11RIP2=192.168.10.12#case "$1" instart) /sbin/ifconfig eth0:1 $VIP netmask 255.255.255.0 up# Since this is the Director we must be able to forward packets echo 1 > /proc/sys/net/ipv4/ip_forward# Clear all iptables rules. /sbin/iptables -F# Reset iptables counters. /sbin/iptables -Z# Clear all ipvsadm rules/services. /sbin/ipvsadm -C# Add an IP virtual service for VIP 192.168.0.219 port 80# In this recipe, we will use the round-robin scheduling method. # In production, however, you should use a weighted, dynamic scheduling method. /sbin/ipvsadm -A -t $VIP:80 -s rr# Now direct packets for this VIP to# the real server IP (RIP) inside the cluster /sbin/ipvsadm -a -t $VIP:80 -r $RIP1 -m /sbin/ipvsadm -a -t $VIP:80 -r $RIP2 -m /bin/touch /var/lock/subsys/ipvsadm.lock;;stop)# Stop forwarding packets echo 0 > /proc/sys/net/ipv4/ip_forward# Reset ipvsadm /sbin/ipvsadm -C# Bring down the VIP interface ifconfig eth0:1 down rm -rf /var/lock/subsys/ipvsadm.lock;;status) [ -e /var/lock/subsys/ipvsadm.lock ] && echo "ipvs is running... " || echo "ipvsadm is stopped... ";;*) echo "Usage: $0 {start| Thank you for reading! About "how to implement NAT script in LVS" this article is shared here, I hope the above content can be of some help to everyone, so that everyone can learn more knowledge, if you think the article is good, you can share it to let more people see it!