Hi Binad, I verified all the things but was not able to find a single entry which states ipv6 is enabled i checked /etc/sysconfig/network /etc/modprob.conf
I googled to check how to disable as i am using RHEL4AS as my OS it was given to modify few entries in /etc/modprob.conf but i am not able to find any to modify it. The command which you have mentioned is it safe to run as i am working on critical production servers. Please suggest On Fri, May 27, 2011 at 4:29 PM, Binand Sethumadhavan <[email protected]>wrote: > 2011/5/27 Vishal Shinde <[email protected]>: > > interfreightinternational.com.au, cherryhill.com.au both pointing same > MX > > record > > And it resolves from any other external machine my local as well as > > mxtoolbox etc, but giving internittent error from my rely server. > > Seems to me this is an IPv6 related issue. Check if the problem goes > away after you disable IPv6 (search Google for distro-specific ways of > doing this). > > echo 1 > /proc/sys/net/ipv6/conf/all/disable_ipv6 > > Binand > -- > http://mm.glug-bom.org/mailman/listinfo/linuxers > -- * With Regards,** Vishal V Shinde *** -- http://mm.glug-bom.org/mailman/listinfo/linuxers

