A message for Linux.com registered users: We are in the process of making changes to the Linux forums. Starting Monday, 8/13/18 at 6:00 PM PT, you will be unable to access the forums. They will re-launch as soon as possible on Wednesday, 8/15/18 with new features and improved functionality. Thank you for your patience and stay tuned for the new improved forums.
Problem with Linux Virtual Server
I need to do a work of university and I'm interested to use LVS, but I have a problem that I can't solve. I would appreciate it could only help.
I have some virtual machines (virtualbox) of Ubuntu running in my Windows Vista. These machines have connectivity between them. The problem: for the load balancing and high availability I use ipsadm + keepalived, and it works only if the load-balancer is the same machine that the client. If the machines are different it is'nt work.
I tried many things (for example use ip private in the load-balancer instead a public ip) and I searched information on the web.
The script that I use in the balancer is:
echo 1 > /proc/sys/net/ipv4/ip_forward
$IPTABLES -t nat -A POSTROUTING -s $REDLOCAL -j MASQUERADE
$IPTABLES -A FORWARD -s $REDLOCAL -j ACCEPT
ipvsadm -A -t 10.0.2.15:80 -s rr -p
ipvsadm -a -t 10.0.2.15:80 -r 192.168.1.35:80 -m
ipvsadm -a -t 10.0.2.15:80 -r 192.168.1.36:80 -m
And in the real servers I only change the default route to point to the balancer's addres:
route add default gw 192.168.1.34
Thank you very much and sorry for my bad English.