这篇文章给大家分享的是有关LVS中如何实现NAT脚本的内容。小编觉得挺实用的,因此分享给大家做个参考,一起跟随小编过来看看吧。
#!/bin/bash # # chkconfig: - 88 12 # description: LVS script for LVS/NAT # . /etc/rc.d/init.d/functions # VIP=192.168.0.219 DIP=192.168.10.10 RIP1=192.168.10.11 RIP2=192.168.10.12 # case "$1" in start) /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|stop}" ;; esac
感谢各位的阅读!关于“LVS中如何实现NAT脚本”这篇文章就分享到这里了,希望以上内容可以对大家有一定的帮助,让大家可以学到更多知识,如果觉得文章不错,可以把它分享出去让更多的人看到吧!
原创文章,作者:1402239773,如若转载,请注明出处:https://blog.ytso.com/tech/safety/222424.html