Troy, On 15 Jan 2004, Troy McKinnon writes:
> I also notice that telneting to port 25 is VERY SLOW. > > Does this mean it is more likely a postfix issue vs cyrus etc? > > Anything else I can do to help narrow down and locate the bottleneck? Delays of about a minute traditionally mean you have a DNS resolution problem, possibly for localhost or for the server's 'real' hostname. Can you do ping localhost and ping `hostname` at a shell prompt on your server and get rapid results? If DNS is the problem, you would see a big delay whle the system tries and fails to do the DNS lookups of localhost and the host name. As further confirmation, check that telnet 127.0.0.1 1 is quickly rejected, but telnet localhost 1 or telnet `hostname` 1 get delayed, and then rejected. That would pretty much confirm it is a DNS-related issue. Jonathan -- Jonathan Marsden | Internet: [EMAIL PROTECTED] | Making electronic 1252 Judson Street | Phone: +1 (909) 795-3877 | communications work Redlands, CA 92374 | Fax: +1 (909) 795-0327 | reliably for Christian USA | http://www.xc.org/jonathan | missions worldwide
