DNS lookup in FC2 still slow.

Jack Bowling jbinpg at shaw.ca
Wed Aug 4 15:25:59 UTC 2004


On Tue, Aug 03, 2004 at 08:14:25PM -0400, Ben Vitale wrote:
<snip >
> Without any changes to kernel 2.6.6-1.435.2.3,
> 
> [bvitale at vandelay ~]$ cat /proc/sys/net/ipv4/tcp_ecn
> 0
> [bvitale at vandelay ~]$
> 
> 
> [bvitale at vandelay ~/ecncheck]$ ecncheck 68.48.0.6 53
> With ECN:    Connection accepted by ns02.rtchrd01.md.comcast.net 
> [68.48.0.6] at hop #7
> Without ECN: Connection accepted by ns02.rtchrd01.md.comcast.net 
> [68.48.0.6] at hop #7
> WARNING: Host doesn't support ECN but fails gracefully
> [bvitale at vandelay ~/ecncheck]$
> 
> Not sure how to interpret that?
> 
> Also, do you think 8.5ms is "slow" for a DNS server ping?

Looks like ECN is not the problem. The servers are telling you that they do
not support ECN. And no, I do not think a 8.5 ms ping is slow but it all
depends on how many hops there are between you and the server.

-- 
Jack Bowling
mailto: jbinpg at shaw.ca





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