While setting up a load-balanced HTTP service, Linux Virtual Server was configured with the commands: ipvsadm -A -t 198.51.100.2:80 -s rr ipvsadm -a -t 198.51.100.2:80 -r 192.168.10.1:80 -m ipvsadm -a -t 198.51.100.2:80 -r 192.168.10.2:80 -m and all backend servers are using the LVS host as the default router. Which additional command has to be issued on the LVS host in order to correctly handle incoming HTTP traffic?
A) echo "1" /proc/sys/net/ipv4/ip_forward
B) iptables -t nat -Z
C) ipvsadmin -L -n
D) ipmasq -A 192.168.10.1 -A 192.168.10.2 -p tcp --dport www -j DEMASQ
E) netstat -r

Question

While setting up a load-balanced HTTP service, Linux Virtual Server was configured with the commands: ipvsadm -A -t 198.51.100.2:80 -s rr ipvsadm -a -t 198.51.100.2:80 -r 192.168.10.1:80 -m ipvsadm -a -t 198.51.100.2:80 -r 192.168.10.2:80 -m and all backend servers are using the LVS host as the default router. Which additional command has to be issued on the LVS host in order to correctly handle incoming HTTP traffic?
A) echo "1" > /proc/sys/net/ipv4/ip_forward
B) iptables -t nat -Z
C) ipvsadmin -L -n
D) ipmasq -A 192.168.10.1 -A 192.168.10.2 -p tcp --dport www -j DEMASQ
E) netstat -r

Quizplus · Accepted Answer

Enabling IP forwarding is necessary for the LVS host to route packets between the client and the backend servers.

While Setting Up a Load-Balanced HTTP Service, Linux Virtual Server