Search Again: Re: Dropping bogus replys From: Nick Quinn Date: Tuesday, June 9, 1998 Time: 1:38:00 am >>I have been poking around looking for the cause of an intermittant server >>slow down and checked the QuickDNS log and noticed things like: >> >>May 29 04:37:45 Dropping bogus reply from 198.142.12.2:53 >>May 29 04:37:46 Dropping bogus reply from 198.142.12.1:53 [snip 8 entries] >>May 29 04:37:46 Dropping bogus reply from 198.142.12.2:53 >>May 29 04:37:47 Dropping bogus reply from 198.142.12.1:53 >> >>going on for months on end. >> >>Is this normal? > >Bogus replys happen very frequently and shouldn't be regarded as a problem, >but if your log is filled with them, and most or all from those two >servers, you should try to find out why these two servers are sending your >replys to queries you didn't ask. I am getting up to 10/sec on and off for the last couple of months. Is that normal? I am printing the log (over 45,000 entries) to try and see the pattern. I do not know how to "try to find out why these two servers are sending your replys to queries you didn't ask". What I meant by "intermittent server slow down" was that sometimes mail gets transmitted at 10cps, DNS lookups go to the secondary server, MacRadius is too slow so dialins time out and give up... There is almost no http server traffic (like 2 hits a day) and, at the moment, we have only 8-15 dialin lines activeas we are a very new user. The "sometimes" interval can be an hour, a week, three weeks... Our dialins are answered by a Livingston Portmaster 3, go via a 10Base-T out to the net via a netopia router. The Mac sits around twiddling its thumbs most of the time doing the "occasional" DNS lookup. >The serves are: >198.142.12.1 : sydney1.world.net >198.142.12.2 : sydney2.world.net Before, I ask hostmaster@world.net "why it is sending all this stuff", I would like to know whether we initiated some of it. Can we log our lookups? or would that slow us down too much? >You could also lower the log level, which should speed things up a bit >since the server doesn't have to log all the bogus replys. Thank you, will do. Nick Quinn Sunshine Beach Software in OZ

Messages In This Thread: Dropping bogus replys by Nick Quinn on Jun 5, 1998 at 1:31:00 am Re: Dropping bogus replys by Sigfus Magnusson on Jun 8, 1998 at 11:10:00 am Re: Dropping bogus replys by Nick Quinn on Jun 9, 1998 at 1:38:00 am Re: Dropping bogus replys by Nick Quinn on Jun 16, 1998 at 8:29:00 am