Hi.
I have a problem with diald and named (local zone and caching) (and maybe
ppp??!)
75% of the time this works fine .... below is a description of when it does
not work!!
I have a fixed ip and I am using an ISDN modem. I am also running squid
The following events take place (when it all goes wrong)
1 / Open browser to connect to the Internet (it is set to proxy through squid)
2 / In dialmon I watch the link begin to come up
3 / Immediately I get my first packet ... a dns lookup to my primary dns server
4 / The link is almost up and I get my second dns lookup to my secondary
dns server
5 / The link is up (elapsed time around 8 secs) and I get my third dns
query (it is stepping through the root servers now)
12:10:25.513439 210.55.xxx.xxx.4374 > 208.10.192.227.www: S
3659520171:3659520171
(0) win 32120 <mss 1460,sackOK,timestamp 51750547[|tcp]> (DF)
12:10:28.503716 210.55.xxx.xxx.4374 > 208.10.192.227.www: S
3659520171:3659520171
(0) win 32120 <mss 1460,sackOK,timestamp 51750847[|tcp]> (DF)
12:10:31.117948 210.55.xxx.xxx.1455 > 202.27.184.3.domain: 45154+ (45)
12:10:34.503725 210.55.xxx.xxx.4374 > 208.10.192.227.www: S
3659520171:3659520171
(0) win 32120 <mss 1460,sackOK,timestamp 51751447[|tcp]> (DF)
12:10:35.004115 210.55.xxx.xxx.1455 > 202.27.184.5.domain: 45154+ (45)
12:10:39.004057 210.55.xxx.xxx.1455 > 208.10.192.67.domain: 45154 (45)
eg above is tcpdump of tap0.
6 / Now everything goes to custard. Instead of a replay from a dns server
coming back, and my http request going out, I get about 30 secs of stepping
through the root dns servers. Then all of a sudden (after around 30 secs)
I get (i presume) a dns reply and connect to the site. From this point on
the link is fine, dns is fine etc.
Any ideas anyone?
Thanks in advance
Steve C
NZ
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