> On Tue, 2010-05-04 at 20:30 +0200, [email protected] wrote: >> > Please post the bash script you're using to setup the loopback device >> > etc. so i can take a look and maybe adjust it. >> >> echo "0" >/proc/sys/net/ipv4/ip_forward >> cat /proc/sys/net/ipv4/ip_forward >> echo 1 > /proc/sys/net/ipv4/conf/eth0/arp_ignore >> echo 2 > /proc/sys/net/ipv4/conf/eth0/arp_announce >> echo 1 > /proc/sys/net/ipv4/conf/all/arp_ignore >> echo 2 > /proc/sys/net/ipv4/conf/all/arp_announce >> /sbin/ifconfig lo:110 194.145.200.87 broadcast 194.145.200.87 netmask >> 0xffffffff up >> /sbin/ifconfig lo:110 >> /sbin/route add -host 194.145.200.87 dev lo:110 >> >> I also run this script on server2 in exact the same way. > > Looks okay to me.
Ok..thanks for checking. > >> When I stop Iptables orflush them the reaction from the client is >> different(as stated before). >> >> With iptables on: >> [r...@knox01 ~]# telnet 194.145.200.87 25 >> Trying 194.145.200.87... >> telnet: connect to address 194.145.200.87: No route to host >> telnet: Unable to connect to remote host: No route to host >> [r...@knox01 ~]# telnet 194.145.200.87 25 >> >> With iptables off (service iptables stop) on server1: >> (takes a long time) >> Nothing happens: >> r...@knox01 ~]# telnet 194.145.200.87 25 >> Trying 194.145.200.87... > > Just realising something. Have you configured the mailserver service on > the failing realserver to listen on _all_ interfaces? To be sure, > compare the output of: > > $ netstat -tulpen | grep 25 Both servers are the same (0.0.0.0:25) > > on both realservers. > > >> Could I run some tcpdumps on real servers and LVS dr to check what is >> going wrong? > > Running tcpdump never hurt anyone :) > What kind of tcpdump should I do on the real servers and perhaps load balancer? (a tcpdump -n | grep *dest ip* | grep smtp gives too much output) Here is where my expertise lacks.. :( > > Léon > Michiel > > _______________________________________________ > Please read the documentation before posting - it's available at: > http://www.linuxvirtualserver.org/ > > LinuxVirtualServer.org mailing list - [email protected] > Send requests to [email protected] > or go to http://lists.graemef.net/mailman/listinfo/lvs-users _______________________________________________ Please read the documentation before posting - it's available at: http://www.linuxvirtualserver.org/ LinuxVirtualServer.org mailing list - [email protected] Send requests to [email protected] or go to http://lists.graemef.net/mailman/listinfo/lvs-users
