On Fri, 2004-06-25 at 06:34, Andy Green wrote: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > On Friday 25 June 2004 10:11, antonio montagnani wrote: > > > >>I think you _may_ be hitting the problem with mozilla and IPV6, which is > > >>turned on by default in FC2. There has been some discussion about this > > >>last week on the list. > The IPv6 thing that I have seen is that DNS lookups can favour IPv6 even when > there is no ability to route IPv6 "out the door". You can kill IPv6 (which > is completely useless assuming you do not use it on your intranet and cannot > send it out on the Internet), by adding > > install ipv6 /bin/true > > to /etc/modprobe.conf. > > These kind of problems, and another stupid problem I once had of setting my > private DNS cache IP in /etc/resolv.conf and then taking the machine back to > my friend to use on the Internet, show up really clearly if you shine tcpdump > on the traffic :-) You are right.. Just look at these tcpdump rates. (crtl-C after 5 secs) with Hostname resolving, a 5 sec capture will only capture 3 packets. 1 packets captured 1922 packets received by filter 1798 packets dropped by kernel W/o Hostname resolving, this turns out to be like 100+ packets. 245 packets captured 249 packets received by filter 0 packets dropped by kernel Just Look at the Dropped Packets!! I've not tried rebooting with that line yet.. But I expect good news
