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@LinuxVirtualServer.org Send requests to lvs-users-requ...@linuxvirtualserver.org or go to http://lists.graemef.net/mailman/listinfo/lvs-users
