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iis smtp nntp
group:SMTP on XP pro only sends one DNS request
iis smtp nntp:
My application deploys onto Windows XP embedded which is basically XP pro. I have some problems when the SMTP server will send a request to the DNS server to resolve a URL. The problem is that if the DNS does not respond on the first try, it will give up. The request is UDP so it should retry. When I do a test using the browser and the DNS request does not get a response, it retries in about 1 second if no response is given. I would expect the DNS client to react in the same way for an HTTP as well as SMTP but it does not seem to do so. I am debugging this by sniffing the ethernet line.
AFAIK, IIS5.1 and below uses TCP 53 for DNS MX queries.
-- Regards, Bernard Cheah http://www.tryiis.com/ http://support.microsoft.com/ http://www.msmvps.com/bernard/ [quoted text, click to view] "David D" <dditch@plsremov.unitecelectronics.com> wrote in message news:OQOQJtDuEHA.3448@TK2MSFTNGP09.phx.gbl... > I have an application using the SMTP services. > My application deploys onto Windows XP embedded which is basically XP pro. > I have some problems when the SMTP server will send a request to the DNS > server to resolve a URL. > The problem is that if the DNS does not respond on the first try, it will > give up. > The request is UDP so it should retry. > When I do a test using the browser and the DNS request does not get a > response, it retries in about 1 second if no response is given. > I would expect the DNS client to react in the same way for an HTTP as well > as SMTP but it does not seem to do so. > I am debugging this by sniffing the ethernet line. > >
Thanks,
But what should that tell me? [quoted text, click to view] "Bernard" <qbernard@hotmail.com.discuss> wrote in message news:usuqXWkuEHA.2832@tk2msftngp13.phx.gbl... > AFAIK, IIS5.1 and below uses TCP 53 for DNS MX queries. > > -- > Regards, > Bernard Cheah > http://www.tryiis.com/ > http://support.microsoft.com/ > http://www.msmvps.com/bernard/ > > > > "David D" <dditch@plsremov.unitecelectronics.com> wrote in message > news:OQOQJtDuEHA.3448@TK2MSFTNGP09.phx.gbl... > > I have an application using the SMTP services. > > My application deploys onto Windows XP embedded which is basically XP pro. > > I have some problems when the SMTP server will send a request to the DNS > > server to resolve a URL. > > The problem is that if the DNS does not respond on the first try, it will > > give up. > > The request is UDP so it should retry. > > When I do a test using the browser and the DNS request does not get a > > response, it retries in about 1 second if no response is given. > > I would expect the DNS client to react in the same way for an HTTP as well > > as SMTP but it does not seem to do so. > > I am debugging this by sniffing the ethernet line. > > > > > >
Errr. smtp will retry - just ensure it able to resolve Mx records via tcp
port 53. -- Regards, Bernard Cheah http://www.tryiis.com/ http://support.microsoft.com/ http://www.msmvps.com/bernard/ [quoted text, click to view] "David D" <dditch@plsremov.unitecelectronics.com> wrote in message news:#JkP2m6uEHA.3908@TK2MSFTNGP12.phx.gbl... > Thanks, > But what should that tell me? > "Bernard" <qbernard@hotmail.com.discuss> wrote in message > news:usuqXWkuEHA.2832@tk2msftngp13.phx.gbl... > > AFAIK, IIS5.1 and below uses TCP 53 for DNS MX queries. > > > > -- > > Regards, > > Bernard Cheah > > http://www.tryiis.com/ > > http://support.microsoft.com/ > > http://www.msmvps.com/bernard/ > > > > > > > > "David D" <dditch@plsremov.unitecelectronics.com> wrote in message > > news:OQOQJtDuEHA.3448@TK2MSFTNGP09.phx.gbl... > > > I have an application using the SMTP services. > > > My application deploys onto Windows XP embedded which is basically XP > pro. > > > I have some problems when the SMTP server will send a request to the DNS > > > server to resolve a URL. > > > The problem is that if the DNS does not respond on the first try, it > will > > > give up. > > > The request is UDP so it should retry. > > > When I do a test using the browser and the DNS request does not get a > > > response, it retries in about 1 second if no response is given. > > > I would expect the DNS client to react in the same way for an HTTP as > well > > > as SMTP but it does not seem to do so. > > > I am debugging this by sniffing the ethernet line. > > > > > > > > > > > >
Not sure I understand how I do that?
I do not have any ports blocked outbound. I am using the XP firewall but do not have anythings specifically targeted to 53. My problem is that sometimes I get a UDP response and sometimes I do not from the DNS server. I always see the DNS request in UDP. If I browse from IE6 sometimes my UDP request to the DNS for the Mx records does not get a response and then XP will send the request again after a 1 second time out. SMTP will not retry. Is there a setting some where or registry entry I need to look at? [quoted text, click to view] "Bernard" <qbernard@hotmail.com.discuss> wrote in message news:##xLEg$uEHA.2116@TK2MSFTNGP14.phx.gbl... > Errr. smtp will retry - just ensure it able to resolve Mx records via tcp > port 53. > > -- > Regards, > Bernard Cheah > http://www.tryiis.com/ > http://support.microsoft.com/ > http://www.msmvps.com/bernard/ > > > > "David D" <dditch@plsremov.unitecelectronics.com> wrote in message > news:#JkP2m6uEHA.3908@TK2MSFTNGP12.phx.gbl... > > Thanks, > > But what should that tell me? > > "Bernard" <qbernard@hotmail.com.discuss> wrote in message > > news:usuqXWkuEHA.2832@tk2msftngp13.phx.gbl... > > > AFAIK, IIS5.1 and below uses TCP 53 for DNS MX queries. > > > > > > -- > > > Regards, > > > Bernard Cheah > > > http://www.tryiis.com/ > > > http://support.microsoft.com/ > > > http://www.msmvps.com/bernard/ > > > > > > > > > > > > "David D" <dditch@plsremov.unitecelectronics.com> wrote in message > > > news:OQOQJtDuEHA.3448@TK2MSFTNGP09.phx.gbl... > > > > I have an application using the SMTP services. > > > > My application deploys onto Windows XP embedded which is basically XP > > pro. > > > > I have some problems when the SMTP server will send a request to the > DNS > > > > server to resolve a URL. > > > > The problem is that if the DNS does not respond on the first try, it > > will > > > > give up. > > > > The request is UDP so it should retry. > > > > When I do a test using the browser and the DNS request does not get a > > > > response, it retries in about 1 second if no response is given. > > > > I would expect the DNS client to react in the same way for an HTTP as > > well > > > > as SMTP but it does not seem to do so. > > > > I am debugging this by sniffing the ethernet line. > > > > > > > > > > > > > > > > > > > >
Ok, in terms of IE and other app. I'm not too sure. Since we are talking
about smtp, that's how it will behave. what is the problem you having with smtp ? mail stuck in queue ? badmail folder ? Get smtpdiag - read my blog on troubleshooting smtp. http://msmvps.com/bernard/archive/2004/09/28/14480.aspx -- Regards, Bernard Cheah http://www.tryiis.com/ http://support.microsoft.com/ http://www.msmvps.com/bernard/ [quoted text, click to view] "David D" <dditch@plsremov.unitecelectronics.com> wrote in message news:up3gE4SvEHA.2172@TK2MSFTNGP14.phx.gbl... > Not sure I understand how I do that? > I do not have any ports blocked outbound. > I am using the XP firewall but do not have anythings specifically targeted > to 53. > My problem is that sometimes I get a UDP response and sometimes I do not > from the DNS server. > I always see the DNS request in UDP. > If I browse from IE6 sometimes my UDP request to the DNS for the Mx records > does not get a response and then XP will send the request again after a 1 > second time out. SMTP will not retry. > Is there a setting some where or registry entry I need to look at? > "Bernard" <qbernard@hotmail.com.discuss> wrote in message > news:##xLEg$uEHA.2116@TK2MSFTNGP14.phx.gbl... > > Errr. smtp will retry - just ensure it able to resolve Mx records via tcp > > port 53. > > > > -- > > Regards, > > Bernard Cheah > > http://www.tryiis.com/ > > http://support.microsoft.com/ > > http://www.msmvps.com/bernard/ > > > > > > > > "David D" <dditch@plsremov.unitecelectronics.com> wrote in message > > news:#JkP2m6uEHA.3908@TK2MSFTNGP12.phx.gbl... > > > Thanks, > > > But what should that tell me? > > > "Bernard" <qbernard@hotmail.com.discuss> wrote in message > > > news:usuqXWkuEHA.2832@tk2msftngp13.phx.gbl... > > > > AFAIK, IIS5.1 and below uses TCP 53 for DNS MX queries. > > > > > > > > -- > > > > Regards, > > > > Bernard Cheah > > > > http://www.tryiis.com/ > > > > http://support.microsoft.com/ > > > > http://www.msmvps.com/bernard/ > > > > > > > > > > > > > > > > "David D" <dditch@plsremov.unitecelectronics.com> wrote in message > > > > news:OQOQJtDuEHA.3448@TK2MSFTNGP09.phx.gbl... > > > > > I have an application using the SMTP services. > > > > > My application deploys onto Windows XP embedded which is basically > XP > > > pro. > > > > > I have some problems when the SMTP server will send a request to the > > DNS > > > > > server to resolve a URL. > > > > > The problem is that if the DNS does not respond on the first try, it > > > will > > > > > give up. > > > > > The request is UDP so it should retry. > > > > > When I do a test using the browser and the DNS request does not get > a > > > > > response, it retries in about 1 second if no response is given. > > > > > I would expect the DNS client to react in the same way for an HTTP > as > > > well > > > > > as SMTP but it does not seem to do so. > > > > > I am debugging this by sniffing the ethernet line. > > > > > > > > > > > > > > > > > > > > > > > > > > > > > >
It will not send mail and seems to not retry even after the default 15
minute retry time. Someone mentioned that smtp does not use the normal DNS lookup routines like IE does. I heard that this was a bug and that it is fixed in server 2003 but not XP SP2. David [quoted text, click to view] "Bernard" <qbernard@hotmail.com.discuss> wrote in message news:u9xZc3WvEHA.592@TK2MSFTNGP15.phx.gbl... > Ok, in terms of IE and other app. I'm not too sure. Since we are talking > about smtp, that's how it will behave. > what is the problem you having with smtp ? mail stuck in queue ? badmail > folder ? > > Get smtpdiag - read my blog on troubleshooting smtp. > http://msmvps.com/bernard/archive/2004/09/28/14480.aspx > > -- > Regards, > Bernard Cheah > http://www.tryiis.com/ > http://support.microsoft.com/ > http://www.msmvps.com/bernard/ > > > > "David D" <dditch@plsremov.unitecelectronics.com> wrote in message > news:up3gE4SvEHA.2172@TK2MSFTNGP14.phx.gbl... > > Not sure I understand how I do that? > > I do not have any ports blocked outbound. > > I am using the XP firewall but do not have anythings specifically targeted > > to 53. > > My problem is that sometimes I get a UDP response and sometimes I do not > > from the DNS server. > > I always see the DNS request in UDP. > > If I browse from IE6 sometimes my UDP request to the DNS for the Mx > records > > does not get a response and then XP will send the request again after a 1 > > second time out. SMTP will not retry. > > Is there a setting some where or registry entry I need to look at? > > "Bernard" <qbernard@hotmail.com.discuss> wrote in message > > news:##xLEg$uEHA.2116@TK2MSFTNGP14.phx.gbl... > > > Errr. smtp will retry - just ensure it able to resolve Mx records via > tcp > > > port 53. > > > > > > -- > > > Regards, > > > Bernard Cheah > > > http://www.tryiis.com/ > > > http://support.microsoft.com/ > > > http://www.msmvps.com/bernard/ > > > > > > > > > > > > "David D" <dditch@plsremov.unitecelectronics.com> wrote in message > > > news:#JkP2m6uEHA.3908@TK2MSFTNGP12.phx.gbl... > > > > Thanks, > > > > But what should that tell me? > > > > "Bernard" <qbernard@hotmail.com.discuss> wrote in message > > > > news:usuqXWkuEHA.2832@tk2msftngp13.phx.gbl... > > > > > AFAIK, IIS5.1 and below uses TCP 53 for DNS MX queries. > > > > > > > > > > -- > > > > > Regards, > > > > > Bernard Cheah > > > > > http://www.tryiis.com/ > > > > > http://support.microsoft.com/ > > > > > http://www.msmvps.com/bernard/ > > > > > > > > > > > > > > > > > > > > "David D" <dditch@plsremov.unitecelectronics.com> wrote in message > > > > > news:OQOQJtDuEHA.3448@TK2MSFTNGP09.phx.gbl... > > > > > > I have an application using the SMTP services. > > > > > > My application deploys onto Windows XP embedded which is basically > > XP > > > > pro. > > > > > > I have some problems when the SMTP server will send a request to > the > > > DNS > > > > > > server to resolve a URL. > > > > > > The problem is that if the DNS does not respond on the first try, > it > > > > will > > > > > > give up. > > > > > > The request is UDP so it should retry. > > > > > > When I do a test using the browser and the DNS request does not > get > > a > > > > > > response, it retries in about 1 second if no response is given. > > > > > > I would expect the DNS client to react in the same way for an HTTP > > as > > > > well > > > > > > as SMTP but it does not seem to do so. > > > > > > I am debugging this by sniffing the ethernet line. > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > >
I have not heard about this before.
have you try the smtpdiag ? so it all works, just that iis smtp doesn't retry ? how do you verifty that? -- Regards, Bernard Cheah http://www.tryiis.com/ http://support.microsoft.com/ http://www.msmvps.com/bernard/ [quoted text, click to view] "David D" <dditch@plsremov.unitecelectronics.com> wrote in message news:e1Ga0lSwEHA.3620@TK2MSFTNGP09.phx.gbl... > It will not send mail and seems to not retry even after the default 15 > minute retry time. > > Someone mentioned that smtp does not use the normal DNS lookup routines like > IE does. > I heard that this was a bug and that it is fixed in server 2003 but not XP > SP2. > > David > "Bernard" <qbernard@hotmail.com.discuss> wrote in message > news:u9xZc3WvEHA.592@TK2MSFTNGP15.phx.gbl... > > Ok, in terms of IE and other app. I'm not too sure. Since we are talking > > about smtp, that's how it will behave. > > what is the problem you having with smtp ? mail stuck in queue ? badmail > > folder ? > > > > Get smtpdiag - read my blog on troubleshooting smtp. > > http://msmvps.com/bernard/archive/2004/09/28/14480.aspx > > > > -- > > Regards, > > Bernard Cheah > > http://www.tryiis.com/ > > http://support.microsoft.com/ > > http://www.msmvps.com/bernard/ > > > > > > > > "David D" <dditch@plsremov.unitecelectronics.com> wrote in message > > news:up3gE4SvEHA.2172@TK2MSFTNGP14.phx.gbl... > > > Not sure I understand how I do that? > > > I do not have any ports blocked outbound. > > > I am using the XP firewall but do not have anythings specifically > targeted > > > to 53. > > > My problem is that sometimes I get a UDP response and sometimes I do not > > > from the DNS server. > > > I always see the DNS request in UDP. > > > If I browse from IE6 sometimes my UDP request to the DNS for the Mx > > records > > > does not get a response and then XP will send the request again after a > 1 > > > second time out. SMTP will not retry. > > > Is there a setting some where or registry entry I need to look at? > > > "Bernard" <qbernard@hotmail.com.discuss> wrote in message > > > news:##xLEg$uEHA.2116@TK2MSFTNGP14.phx.gbl... > > > > Errr. smtp will retry - just ensure it able to resolve Mx records via > > tcp > > > > port 53. > > > > > > > > -- > > > > Regards, > > > > Bernard Cheah > > > > http://www.tryiis.com/ > > > > http://support.microsoft.com/ > > > > http://www.msmvps.com/bernard/ > > > > > > > > > > > > > > > > "David D" <dditch@plsremov.unitecelectronics.com> wrote in message > > > > news:#JkP2m6uEHA.3908@TK2MSFTNGP12.phx.gbl... > > > > > Thanks, > > > > > But what should that tell me? > > > > > "Bernard" <qbernard@hotmail.com.discuss> wrote in message > > > > > news:usuqXWkuEHA.2832@tk2msftngp13.phx.gbl... > > > > > > AFAIK, IIS5.1 and below uses TCP 53 for DNS MX queries. > > > > > > > > > > > > -- > > > > > > Regards, > > > > > > Bernard Cheah > > > > > > http://www.tryiis.com/ > > > > > > http://support.microsoft.com/ > > > > > > http://www.msmvps.com/bernard/ > > > > > > > > > > > > > > > > > > > > > > > > "David D" <dditch@plsremov.unitecelectronics.com> wrote in message > > > > > > news:OQOQJtDuEHA.3448@TK2MSFTNGP09.phx.gbl... > > > > > > > I have an application using the SMTP services. > > > > > > > My application deploys onto Windows XP embedded which is > basically > > > XP > > > > > pro. > > > > > > > I have some problems when the SMTP server will send a request to > > the > > > > DNS > > > > > > > server to resolve a URL. > > > > > > > The problem is that if the DNS does not respond on the first > try, > > it > > > > > will > > > > > > > give up. > > > > > > > The request is UDP so it should retry. > > > > > > > When I do a test using the browser and the DNS request does not > > get > > > a > > > > > > > response, it retries in about 1 second if no response is given. > > > > > > > I would expect the DNS client to react in the same way for an > HTTP > > > as > > > > > well > > > > > > > as SMTP but it does not seem to do so. > > > > > > > I am debugging this by sniffing the ethernet line. > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > >
I used Ethereal sniffer: Here is a sample:
1&2 is the ARP to get the DNS ip 3 is the DNS query DNS does not respond in this case. I have sniff logs of it working though. The DNS responding is intermittant. I would expect XP to retry but it does not. No. Time Source Destination Protocol Info 1 0.000000 192.168.2.102 Broadcast ARP Who has 192.168.2.1? Tell 192.168.2.102 2 0.000186 192.168.2.1 192.168.2.102 ARP 192.168.2.1 is at 00:04:e2:76:81:bc 3 0.000188 192.168.2.102 192.168.2.1 DNS Standard query MX unitecelectronics.com 4 1.375739 192.168.2.100 Broadcast ARP Who has 192.168.2.1? Tell 192.168.2.100 5 1.376059 192.168.2.1 192.168.2.100 ARP 192.168.2.1 is at 00:04:e2:76:81:bc 6 1.376067 192.168.2.100 192.168.2.1 DNS Standard query PTR 1.2.168.192.in-addr.arpa 7 1.475365 192.168.2.1 192.168.2.100 DNS Standard query response PTR <Root> 8 2.126669 192.168.2.100 192.168.2.1 DNS Standard query PTR 100.2.168.192.in-addr.arpa 9 2.126859 192.168.2.100 192.168.2.1 DNS Standard query A <Root> 10 2.130967 192.168.2.1 192.168.2.100 DNS Standard query response, Server failure 11 2.163838 192.168.2.1 192.168.2.100 DNS Standard query response, No such name 12 3.628811 192.168.2.100 192.168.2.1 DNS Standard query PTR 102.2.168.192.in-addr.arpa 13 3.763168 192.168.2.1 192.168.2.100 DNS Standard query response, No such name 14 8.421496 192.168.2.102 192.168.2.255 BROWSER Local Master Announcement PORTAL, Workstation, Server, NT Workstation, Potential Browser, Master Browser 15 74.199164 192.168.2.102 192.168.2.255 BROWSER Local Master Announcement PORTAL, Workstation, Server, Dialin Server, NT Workstation, Potential Browser, Master Browser 16 74.259067 192.168.2.102 239.255.2.2 UDP Source port: 3018 Destination port: 9753 17 79.520544 192.168.2.102 192.168.2.255 BROWSER Local Master Announcement PORTAL, Workstation, Server, NT Workstation, Potential Browser, Master Browser 18 90.927413 192.168.2.102 192.168.2.255 BROWSER Get Backup List Request 19 90.927511 192.168.2.102 192.168.2.255 NBNS Name query NB UNITEC<1b> 20 91.677126 192.168.2.102 192.168.2.255 NBNS Name query NB UNITEC<1b> 21 92.428280 192.168.2.102 192.168.2.255 NBNS Name query NB UNITEC<1b> 22 95.182601 192.168.2.102 192.168.2.255 BROWSER Get Backup List Request 23 95.182700 192.168.2.102 192.168.2.255 NBNS Name query NB UNITEC<1b> 24 95.933735 192.168.2.102 192.168.2.255 NBNS Name query NB UNITEC<1b> 25 96.684907 192.168.2.102 192.168.2.255 NBNS Name query NB UNITEC<1b> 26 99.439476 192.168.2.102 192.168.2.255 BROWSER Get Backup List Request 27 99.439572 192.168.2.102 192.168.2.255 NBNS Name query NB UNITEC<1b> 28 100.190353 192.168.2.102 192.168.2.255 NBNS Name query NB UNITEC<1b> 29 100.941533 192.168.2.102 192.168.2.255 NBNS Name query NB UNITEC<1b> 30 103.695862 192.168.2.102 192.168.2.255 BROWSER Browser Election Request 31 160.291891 192.168.2.102 192.168.2.255 BROWSER Local Master Announcement PORTAL, Workstation, Server, Dialin Server, NT Workstation, Potential Browser, Master Browser 32 160.371042 192.168.2.102 239.255.2.2 UDP Source port: 3021 Destination port: 9753 33 212.636098 192.168.2.102 192.168.2.255 BROWSER Domain/Workgroup Announcement UNITEC, NT Workstation, Domain Enum 34 222.514658 192.168.2.102 192.168.2.255 BROWSER Local Master Announcement PORTAL, Workstation, Server, NT Workstation, Potential Browser, Master Browser 35 241.513490 192.168.2.100 192.168.2.255 NBNS Name query NB PORTAL<00> 36 241.513805 192.168.2.102 Broadcast ARP Who has 192.168.2.100? Tell 192.168.2.102 37 241.513820 192.168.2.100 192.168.2.102 ARP 192.168.2.100 is at 00:04:5a:56:0a:cc 38 241.513897 192.168.2.102 192.168.2.100 NBNS Name query response NB 192.168.2.102 [quoted text, click to view] "Bernard" <qbernard@hotmail.com.discuss> wrote in message
news:eZ3Ar6UwEHA.2568@TK2MSFTNGP10.phx.gbl... > I have not heard about this before. > have you try the smtpdiag ? so it all works, just that iis smtp doesn't > retry ? > how do you verifty that? > > -- > Regards, > Bernard Cheah > http://www.tryiis.com/ > http://support.microsoft.com/ > http://www.msmvps.com/bernard/ > > > > "David D" <dditch@plsremov.unitecelectronics.com> wrote in message > news:e1Ga0lSwEHA.3620@TK2MSFTNGP09.phx.gbl... > > It will not send mail and seems to not retry even after the default 15 > > minute retry time. > > > > Someone mentioned that smtp does not use the normal DNS lookup routines > like > > IE does. > > I heard that this was a bug and that it is fixed in server 2003 but not XP > > SP2. > > > > David > > "Bernard" <qbernard@hotmail.com.discuss> wrote in message > > news:u9xZc3WvEHA.592@TK2MSFTNGP15.phx.gbl... > > > Ok, in terms of IE and other app. I'm not too sure. Since we are talking > > > about smtp, that's how it will behave. > > > what is the problem you having with smtp ? mail stuck in queue ? badmail > > > folder ? > > > > > > Get smtpdiag - read my blog on troubleshooting smtp. > > > http://msmvps.com/bernard/archive/2004/09/28/14480.aspx > > > > > > -- > > > Regards, > > > Bernard Cheah > > > http://www.tryiis.com/ > > > http://support.microsoft.com/ > > > http://www.msmvps.com/bernard/ > > > > > > > > > > > > "David D" <dditch@plsremov.unitecelectronics.com> wrote in message > > > news:up3gE4SvEHA.2172@TK2MSFTNGP14.phx.gbl... > > > > Not sure I understand how I do that? > > > > I do not have any ports blocked outbound. > > > > I am using the XP firewall but do not have anythings specifically > > targeted > > > > to 53. > > > > My problem is that sometimes I get a UDP response and sometimes I do > not > > > > from the DNS server. > > > > I always see the DNS request in UDP. > > > > If I browse from IE6 sometimes my UDP request to the DNS for the Mx > > > records > > > > does not get a response and then XP will send the request again after > a > > 1 > > > > second time out. SMTP will not retry.
Interesting. now - it just stuck there forever ?
[quoted text, click to view] > Standard query MX unitecelectronics.com so this is one... so after 15mins also no retry ?what about capture a longer time frame say 1hr ? same things ? -- Regards, Bernard Cheah http://www.tryiis.com/ http://support.microsoft.com/ http://www.msmvps.com/bernard/ [quoted text, click to view] "David D" <dditch@plsremov.unitecelectronics.com> wrote in message
news:#X$Q7rrwEHA.1192@tk2msftngp13.phx.gbl... > I used Ethereal sniffer: Here is a sample: > 1&2 is the ARP to get the DNS ip > 3 is the DNS query > DNS does not respond in this case. > I have sniff logs of it working though. The DNS responding is intermittant. > I would expect XP to retry but it does not. > No. Time Source Destination Protocol > Info > 1 0.000000 192.168.2.102 Broadcast ARP Who > has 192.168.2.1? Tell 192.168.2.102 > 2 0.000186 192.168.2.1 192.168.2.102 ARP > 192.168.2.1 is at 00:04:e2:76:81:bc > 3 0.000188 192.168.2.102 192.168.2.1 DNS > Standard query MX unitecelectronics.com > 4 1.375739 192.168.2.100 Broadcast ARP Who > has 192.168.2.1? Tell 192.168.2.100 > 5 1.376059 192.168.2.1 192.168.2.100 ARP > 192.168.2.1 is at 00:04:e2:76:81:bc > 6 1.376067 192.168.2.100 192.168.2.1 DNS > Standard query PTR 1.2.168.192.in-addr.arpa > 7 1.475365 192.168.2.1 192.168.2.100 DNS > Standard query response PTR <Root> > 8 2.126669 192.168.2.100 192.168.2.1 DNS > Standard query PTR 100.2.168.192.in-addr.arpa > 9 2.126859 192.168.2.100 192.168.2.1 DNS > Standard query A <Root> > 10 2.130967 192.168.2.1 192.168.2.100 DNS > Standard query response, Server failure > 11 2.163838 192.168.2.1 192.168.2.100 DNS > Standard query response, No such name > 12 3.628811 192.168.2.100 192.168.2.1 DNS > Standard query PTR 102.2.168.192.in-addr.arpa > 13 3.763168 192.168.2.1 192.168.2.100 DNS > Standard query response, No such name > 14 8.421496 192.168.2.102 192.168.2.255 BROWSER > Local Master Announcement PORTAL, Workstation, Server, NT Workstation, > Potential Browser, Master Browser > 15 74.199164 192.168.2.102 192.168.2.255 BROWSER > Local Master Announcement PORTAL, Workstation, Server, Dialin Server, NT > Workstation, Potential Browser, Master Browser > 16 74.259067 192.168.2.102 239.255.2.2 UDP > Source port: 3018 Destination port: 9753 > 17 79.520544 192.168.2.102 192.168.2.255 BROWSER > Local Master Announcement PORTAL, Workstation, Server, NT Workstation, > Potential Browser, Master Browser > 18 90.927413 192.168.2.102 192.168.2.255 BROWSER Get > Backup List Request > 19 90.927511 192.168.2.102 192.168.2.255 NBNS > Name query NB UNITEC<1b> > 20 91.677126 192.168.2.102 192.168.2.255 NBNS > Name query NB UNITEC<1b> > 21 92.428280 192.168.2.102 192.168.2.255 NBNS > Name query NB UNITEC<1b> > 22 95.182601 192.168.2.102 192.168.2.255 BROWSER Get > Backup List Request > 23 95.182700 192.168.2.102 192.168.2.255 NBNS > Name query NB UNITEC<1b> > 24 95.933735 192.168.2.102 192.168.2.255 NBNS > Name query NB UNITEC<1b> > 25 96.684907 192.168.2.102 192.168.2.255 NBNS > Name query NB UNITEC<1b> > 26 99.439476 192.168.2.102 192.168.2.255 BROWSER Get > Backup List Request > 27 99.439572 192.168.2.102 192.168.2.255 NBNS > Name query NB UNITEC<1b> > 28 100.190353 192.168.2.102 192.168.2.255 NBNS > Name query NB UNITEC<1b> > 29 100.941533 192.168.2.102 192.168.2.255 NBNS > Name query NB UNITEC<1b> > 30 103.695862 192.168.2.102 192.168.2.255 BROWSER > Browser Election Request > 31 160.291891 192.168.2.102 192.168.2.255 BROWSER > Local Master Announcement PORTAL, Workstation, Server, Dialin Server, NT > Workstation, Potential Browser, Master Browser > 32 160.371042 192.168.2.102 239.255.2.2 UDP > Source port: 3021 Destination port: 9753 > 33 212.636098 192.168.2.102 192.168.2.255 BROWSER > Domain/Workgroup Announcement UNITEC, NT Workstation, Domain Enum > 34 222.514658 192.168.2.102 192.168.2.255 BROWSER > Local Master Announcement PORTAL, Workstation, Server, NT Workstation, > Potential Browser, Master Browser > 35 241.513490 192.168.2.100 192.168.2.255 NBNS > Name query NB PORTAL<00> > 36 241.513805 192.168.2.102 Broadcast ARP Who > has 192.168.2.100? Tell 192.168.2.102 > 37 241.513820 192.168.2.100 192.168.2.102 ARP > 192.168.2.100 is at 00:04:5a:56:0a:cc > 38 241.513897 192.168.2.102 192.168.2.100 NBNS > Name query response NB 192.168.2.102 > "Bernard" <qbernard@hotmail.com.discuss> wrote in message > news:eZ3Ar6UwEHA.2568@TK2MSFTNGP10.phx.gbl... > > I have not heard about this before. > > have you try the smtpdiag ? so it all works, just that iis smtp doesn't > > retry ? > > how do you verifty that? > > > > -- > > Regards, > > Bernard Cheah > > http://www.tryiis.com/ > > http://support.microsoft.com/ > > http://www.msmvps.com/bernard/ > > > > > > > > "David D" <dditch@plsremov.unitecelectronics.com> wrote in message > > news:e1Ga0lSwEHA.3620@TK2MSFTNGP09.phx.gbl... > > > It will not send mail and seems to not retry even after the default 15 > > > minute retry time. > > > > > > Someone mentioned that smtp does not use the normal DNS lookup routines > > like > > > IE does. > > > I heard that this was a bug and that it is fixed in server 2003 but not > XP > > > SP2. > > > > > > David > > > "Bernard" <qbernard@hotmail.com.discuss> wrote in message > > > news:u9xZc3WvEHA.592@TK2MSFTNGP15.phx.gbl... > > > > Ok, in terms of IE and other app. I'm not too sure. Since we are > talking > > > > about smtp, that's how it will behave. > > > > what is the problem you having with smtp ? mail stuck in queue ? > badmail > > > > folder ? > > > > > > > > Get smtpdiag - read my blog on troubleshooting smtp. > > > > http://msmvps.com/bernard/archive/2004/09/28/14480.aspx > > > > > > > > -- > > > > Regards, > > > > Bernard Cheah > > > > http://www.tryiis.com/ > > > > http://support.microsoft.com/ > > > > http://www.msmvps.com/bernard/ > > > > > > > > > > > >
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