DragonFly BSD
DragonFly bugs List (threaded) for 2005-09
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Re: nntp.dragonflybsd.org slowness?

From: Matthew Dillon <dillon@xxxxxxxxxxxxxxxxxxxx>
Date: Wed, 14 Sep 2005 10:40:49 -0700 (PDT)

:It's taking ~30 seconds between the telnet and getting the banner line.
:Watching it via Ethereal shows:
:1 0.000000  TCP   3144 > nntp [SYN] Seq=0 Ack=0 Win=65535 Len=0 MSS=1460
:2 0.055418  TCP   nntp > 3144 [SYN, ACK] Seq=0 Ack=1 Win=4096 Len=0 MSS=1460
:3 0.055688  TCP   3144 > nntp [ACK] Seq=1 Ack=1 Win=65535 Len=0
:4 30.181944 NNTP  Response: 200 crater_reader.dragonflybsd.org NNRP ...
:The reason why it's taking ~30 seconds to pull up an article is because 
:Thunderbird is (for whatever stupid reason) making multiple connections 
:while I'm reading.
:I suspect part of the issue could be that inetd on your end is trying to 
:do a reverse lookup on my IP and timing out -- alas, whatever service 
:they have here has not set up reverse addresses in their nameserver.

    Ok, please try it now.  I found a bug in my secondary nameserver setup
    which may be the cause.  It wasn't using port 53 for its outgoing
    (recursive) requests and the responses were being smashed by my firewall.

					Matthew Dillon 

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