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iis security : changing "CN" name
Hi,
I setup a CA server on Server 2003 (active Directory) with exchange. When I access exchange through Outlook from home, I get the error "The server you are connected to is using a security certificate that could not be verified and certificate's CN name does not match the passed value" I looked at the certificate and noticed it reads "issued by owacert.mydomain.com". We are mydomain.net. Could this be causing the problem? I am trying to let some of our people be able to use outlook out of office and not have that certificate warning every time. Thanks,
I'm using outlook 2003. the settings in oultlook for smtp and pop are
exchange server's IP. When i do the test you suggested, i get page can't be displayed. Is their a way to change the CN name or should I start from scratch with the CA server and make sure the .com is .net? Gregg [quoted text, click to view] "Miha Pihler [MVP]" wrote:
> Hi, > > Are you using Outlook or Outlook Web Access to connect to Exchange from > home? > > There are quite a few checks of the certificate before you can connect using > Outlook. Name (URL) that you entered in Outlook must be the same as the name > in the certificate (e.g. mail.domain.com). If this is URL that you are > using, but you e.g. have certificate issued to webmail.domain.com connection > will not be successful. > Certificate is also checked that it chains to trusted CA server. Your > computer where you hare using Outlook must trust CA server that issued the > certificate -- or again the connection will fail. > > You can also test this by using IE. Enter https://webmail.domain.com > (replace this URL with URL to your Exchange server). Do you get any pop-ups > (Security Alerts)? > > -- > Mike > Microsoft MVP - Windows Security > > "Gregg" <Gregg@discussions.microsoft.com> wrote in message > news:C7E40C3D-9968-4360-83E4-140A019FF4BF@microsoft.com... > > Hi, > > > > I setup a CA server on Server 2003 (active Directory) with exchange. When > > I > > access exchange through Outlook from home, I get the error "The server you > > are connected to is using a security certificate that could not be > > verified > > and certificate's CN name does not match the passed value" I looked at > > the > > certificate and noticed it reads "issued by owacert.mydomain.com". We are > > mydomain.net. Could this be causing the problem? > > I am trying to let some of our people be able to use outlook out of office > > and not have that certificate warning every time. > > > > Thanks, > > Gregg > >
Hi,
Are you using Outlook or Outlook Web Access to connect to Exchange from home? There are quite a few checks of the certificate before you can connect using Outlook. Name (URL) that you entered in Outlook must be the same as the name in the certificate (e.g. mail.domain.com). If this is URL that you are using, but you e.g. have certificate issued to webmail.domain.com connection will not be successful. Certificate is also checked that it chains to trusted CA server. Your computer where you hare using Outlook must trust CA server that issued the certificate -- or again the connection will fail. You can also test this by using IE. Enter https://webmail.domain.com (replace this URL with URL to your Exchange server). Do you get any pop-ups (Security Alerts)? -- Mike Microsoft MVP - Windows Security [quoted text, click to view] "Gregg" <Gregg@discussions.microsoft.com> wrote in message news:C7E40C3D-9968-4360-83E4-140A019FF4BF@microsoft.com... > Hi, > > I setup a CA server on Server 2003 (active Directory) with exchange. When > I > access exchange through Outlook from home, I get the error "The server you > are connected to is using a security certificate that could not be > verified > and certificate's CN name does not match the passed value" I looked at > the > certificate and noticed it reads "issued by owacert.mydomain.com". We are > mydomain.net. Could this be causing the problem? > I am trying to let some of our people be able to use outlook out of office > and not have that certificate warning every time. > > Thanks, > Gregg
You will need to issue a new certificate. You should also revoke the old one
if you do not intend to use it. Cheers Ken [quoted text, click to view] "Gregg" <Gregg@discussions.microsoft.com> wrote in message news:7EB0D529-2C88-4239-BE27-FEE748C4165E@microsoft.com... > I'm using outlook 2003. the settings in oultlook for smtp and pop are > exchange server's IP. When i do the test you suggested, i get page can't > be > displayed. > Is their a way to change the CN name or should I start from scratch with > the > CA server and make sure the .com is .net? > > Gregg > > "Miha Pihler [MVP]" wrote: > >> Hi, >> >> Are you using Outlook or Outlook Web Access to connect to Exchange from >> home? >> >> There are quite a few checks of the certificate before you can connect >> using >> Outlook. Name (URL) that you entered in Outlook must be the same as the >> name >> in the certificate (e.g. mail.domain.com). If this is URL that you are >> using, but you e.g. have certificate issued to webmail.domain.com >> connection >> will not be successful. >> Certificate is also checked that it chains to trusted CA server. Your >> computer where you hare using Outlook must trust CA server that issued >> the >> certificate -- or again the connection will fail. >> >> You can also test this by using IE. Enter https://webmail.domain.com >> (replace this URL with URL to your Exchange server). Do you get any >> pop-ups >> (Security Alerts)? >> >> -- >> Mike >> Microsoft MVP - Windows Security >> >> "Gregg" <Gregg@discussions.microsoft.com> wrote in message >> news:C7E40C3D-9968-4360-83E4-140A019FF4BF@microsoft.com... >> > Hi, >> > >> > I setup a CA server on Server 2003 (active Directory) with exchange. >> > When >> > I >> > access exchange through Outlook from home, I get the error "The server >> > you >> > are connected to is using a security certificate that could not be >> > verified >> > and certificate's CN name does not match the passed value" I looked at >> > the >> > certificate and noticed it reads "issued by owacert.mydomain.com". We >> > are >> > mydomain.net. Could this be causing the problem? >> > I am trying to let some of our people be able to use outlook out of >> > office >> > and not have that certificate warning every time. >> > >> > Thanks, >> > Gregg >> >> >>
If I do a new certificate, there is no way to change the CN. I have created
new certificates but they are still issued by risp.com, not risp.net. Wouldn't i need to fix this first? thanks for all the help. Gregg [quoted text, click to view] "Gregg" wrote:
> Hi, > > I setup a CA server on Server 2003 (active Directory) with exchange. When I > access exchange through Outlook from home, I get the error "The server you > are connected to is using a security certificate that could not be verified > and certificate's CN name does not match the passed value" I looked at the > certificate and noticed it reads "issued by owacert.mydomain.com". We are > mydomain.net. Could this be causing the problem? > I am trying to let some of our people be able to use outlook out of office > and not have that certificate warning every time. > > Thanks,
No.
The "common name" in the issued server authentication certificate must match the FQDN used by the user. The root CA's certificate must be installed into the user's certificate store so that it will trust certificates issued by that CA Cheers Ken [quoted text, click to view] "Gregg" <Gregg@discussions.microsoft.com> wrote in message news:2B7CEDAB-694E-4646-867D-D58ADB2A3550@microsoft.com... > If I do a new certificate, there is no way to change the CN. I have > created > new certificates but they are still issued by risp.com, not risp.net. > Wouldn't i need to fix this first? > > thanks for all the help. > Gregg > > "Gregg" wrote: > >> Hi, >> >> I setup a CA server on Server 2003 (active Directory) with exchange. >> When I >> access exchange through Outlook from home, I get the error "The server >> you >> are connected to is using a security certificate that could not be >> verified >> and certificate's CN name does not match the passed value" I looked at >> the >> certificate and noticed it reads "issued by owacert.mydomain.com". We >> are >> mydomain.net. Could this be causing the problem? >> I am trying to let some of our people be able to use outlook out of >> office >> and not have that certificate warning every time. >> >> Thanks, >> Gregg
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