Setup Varnish - Multiple Ipaddress
From Brian Nelson Ramblings
Set Varnish to Listen on Multiple IP's
By default, varnish will listen on every ipaddress you add to the server.
Only listen to specific ipaddresses
Say you have a server with 3 ip's and you only want 2 to use varnish. You will have to edit the /etc/sysconfig/varnish file
vim /etc/sysconfig/varnish
And change the -a flag to include both ips' comma separated
Find
-a ${VARNISH_LISTEN_ADDRESS}:${VARNISH_LISTEN_PORT} \
Replace with
-a 192.168.0.1:80,192.168.0.2:80 \
Over all it will look like
DAEMON_OPTS="-a 192.240.163.202:80,192.240.163.19:80 \
-f ${VARNISH_VCL_CONF} \
-T ${VARNISH_ADMIN_LISTEN_ADDRESS}:${VARNISH_ADMIN_LISTEN_PORT} \
-t ${VARNISH_TTL} \
-w ${VARNISH_MIN_THREADS},${VARNISH_MAX_THREADS},${VARNISH_THREAD_TIMEOUT} \
-u varnish -g varnish \
-S ${VARNISH_SECRET_FILE} \
-s ${VARNISH_STORAGE}"
Now you only have varnish listening to only a few of the ips on the server not all or 1.
