|
Hi,
I want to load balance smtp with LVS because I heard that LVS is capable
of showing the source ip to the real servers.
Is that correct?
I tried the following howto:
http://www.howtoforge.com/efficient-high-available-loadbalanced-cluster-on-centos-5.3-direct-routing-method
And use CentOS 5.4 .
ut I can not get a listening port 25 on my server.
Some configs:
-bash-3.2# ip addr sh eth0
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast
qlen 1000
link/ether 00:16:3e:4b:df:69 brd ff:ff:ff:ff:ff:ff
inet 178.21.112.162/24 brd 178.21.112.255 scope global eth0
inet 178.21.112.169/24 brd 178.21.112.255 scope global secondary eth0:1
inet6 fe80::216:3eff:fe4b:df69/64 scope link
valid_lft forever preferred_lft forever
my /etc/ha.d/ldirectord.conf:
checktimeout=30
checkinterval=2
autoreload=yes
logfile="/var/log/ldirectord.log"
quiescent=no
virtual=178.21.112.169:25
fallback=127.0.0.1:80
real=194.145.200.17:25 gate
real=194.145.200.171:25 gate
service=smtp
persistent=100
scheduler=lblc
protocol=tcp
checktype=negotiate
In /var/log/ldirectord.log:
[Sun Apr 25 19:12:59 2010|ldirectord|15310] Invoking ldirectord invoked
as: /usr/sbin/ldirectord start
[Sun Apr 25 19:12:59 2010|ldirectord|15310] Starting Linux Director
v1.186-ha-2.1.3 as daemon
[Sun Apr 25 19:12:59 2010|ldirectord|15313] Added virtual server:
178.21.112.169:25
[Sun Apr 25 19:12:59 2010|ldirectord|15313] Added fallback server:
127.0.0.1:80 (178.21.112.169:25) (Weight set to 1)
[Sun Apr 25 19:12:59 2010|ldirectord|15313] Added real server:
194.145.200.17:25 (178.21.112.169:25) (Weight set to 1)
[Sun Apr 25 19:12:59 2010|ldirectord|15313] Deleted fallback server:
127.0.0.1:25 mapped from 127.0.0.1:80 (178.21.112.169:25)
[Sun Apr 25 19:12:59 2010|ldirectord|15313] Added real server:
194.145.200.171:25 (178.21.112.169:25) (Weight set to 1)
Should I restart something?
Why isn't anything listening on port 25?
I want to use the direct routing method because of the 2 real servers
being able to connect direct ot the internet.
The real servers have the following setup:
Cluster Nodes Configurations (Apache Real Web Servers Configuration)
On both web servers http1 and http2, apache should be running having a
common serving file (for purpose of get checked by ldirectord).
yum install httpd -y
echo "webserverisworking" > /var/www/html/check.txt
service httpd start
chkconfig httpd on
Now, Create a loopback interface on each web server, so it doesn’t
communicate with your network gateway/router directly.
vi /etc/sysconfig/network-scripts/ifcfg-lo:0
It must look like this:
DEVICE=lo:0
IPADDR=10.10.10.53
NETMASK=255.255.255.255
ONBOOT=yes
NAME=loopback
vi /etc/sysctl.conf
It must look like this:
net.ipv4.conf.all.arp_ignore = 1
net.ipv4.conf.eth0.arp_ignore = 1
net.ipv4.conf.all.arp_announce = 2
net.ipv4.conf.eth0.arp_announce = 2
sysctl -p
ifup lo:0
Kind regards,
Michiel
_______________________________________________
Please read the documentation before posting - it's available at:
http://www.linuxvirtualserver.org/
LinuxVirtualServer.org mailing list - lvs-users@xxxxxxxxxxxxxxxxxxxxxx
Send requests to lvs-users-request@xxxxxxxxxxxxxxxxxxxxxx
or go to http://lists.graemef.net/mailman/listinfo/lvs-users
|
