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failing to retrive CRL from certificate server using new LDAP Serv Mr555 08-22-2006
Posted by Mr555 on August 22, 2006, 6:12 pm
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3 months ago we migrated to windows 2003 Server.

We have moved the entire FSMO role from our old windows 2000 server “Corp”
to our new windows 2003 Server “Paul” Paul is now the forest root of our
network.
The ip address of Paul is 192.168.1.2

Few weeks ago our windows 2000 certificate server "Spoon" die, we decided to
rebuild the certificate server to windows 2003. The new certificate server is
now called "Mugen" and is configured as a stand-alone root CA member server.
The purpose of this certificate server is to authenticate VPN connection to
our network and is operate together with our netscreen VPN / firewall.

15 days ago, our VPN / firewall failing to retrieve CRL from certificate
server. Therefore VPN connections stop working.

Under extensive investigation, I have discovered we can only make our
VPN/firewll to automatically obtain CRL from the certificate server “Mugen” ,
if we specific the old LDAP server IP address “ corp.” which is 192.168.1.1,

if I enter the ip address of Paul 192.168.1.2 to the VPN/ firewall
certificate settings, the automatic CRL retrieve will fail.

I have checked with the firewall support team. They said netscreen does
support windows 2003 Server. They suspect I have not configured our
certificate server correctly to work under “Paul” LDAP Server.

Questions:

Are there any configuration or security policy I need to configure to allow
communication between LDAP “Paul” server and certificate server “ Mugen”?

I need to specific “Paul” as the LDAP server on the VPN setup instead of corp.
Server, please help

Thank you

Mr555




Posted by S. Pidgorny on August 24, 2006, 7:02 am
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Which VPN server do you use and how do you configure it for CRL lookup (if
applicable)?
What CDPs are defined in the VPN client certificate properties?
Not less important - what CDPs are defined in the VPN server certificate?

--
Svyatoslav Pidgorny, MS MVP - Security, MCSE
-= F1 is the key =-

>3 months ago we migrated to windows 2003 Server.
>
> We have moved the entire FSMO role from our old windows 2000 server "Corp"
> to our new windows 2003 Server "Paul" Paul is now the forest root of our
> network.
> The ip address of Paul is 192.168.1.2
>
> Few weeks ago our windows 2000 certificate server "Spoon" die, we decided
> to
> rebuild the certificate server to windows 2003. The new certificate server
> is
> now called "Mugen" and is configured as a stand-alone root CA member
> server.
> The purpose of this certificate server is to authenticate VPN connection
> to
> our network and is operate together with our netscreen VPN / firewall.
>
> 15 days ago, our VPN / firewall failing to retrieve CRL from certificate
> server. Therefore VPN connections stop working.
>
> Under extensive investigation, I have discovered we can only make our
> VPN/firewll to automatically obtain CRL from the certificate server
> "Mugen" ,
> if we specific the old LDAP server IP address " corp." which is
> 192.168.1.1,
>
> if I enter the ip address of Paul 192.168.1.2 to the VPN/ firewall
> certificate settings, the automatic CRL retrieve will fail.
>
> I have checked with the firewall support team. They said netscreen does
> support windows 2003 Server. They suspect I have not configured our
> certificate server correctly to work under "Paul" LDAP Server.
>
> Questions:
>
> Are there any configuration or security policy I need to configure to
> allow
> communication between LDAP "Paul" server and certificate server " Mugen"?
>
> I need to specific "Paul" as the LDAP server on the VPN setup instead of
> corp.
> Server, please help
>
> Thank you
>
> Mr555
>
>
>



Posted by Mr555 on August 27, 2006, 6:39 pm
Please log in for more thread options
Hello

Thank you so much for your input to my questions. I am new to certificate
server, throught I just enabled the cetificate services will be OK. At the
moment our VPN is operational. the only problem (serious problem) we are
having is that it will only retrive new CRL from the certificate srever, if I
specific the old LDAP server IP address which is 192.168.1.1 " corp server
windows 2000" we are going to demote corp server soon, I got the feeling that
some configuration is been done on corp server., possible I have to enable it
on Paul Server 192.168.1.2 windows 2003. I am not sure what it is . so
hopefully you will be able to help me with this.
we are using netscreen 50 as our VPN server. under certificate options on
our netscreen VPN server, a place where you have to specific the URL path,
under the netscreen documentstions it saids I must copy it from the published
CRL locations "
URL=ldap:///CN=company1,CN=Paul,CN=CDP,CN=Public%20Key%20Services,CN=Services,CN=Configuration,DC=domain1,DC=co,DC=nz?certificateRevocationList?base?objectClass=cRLDistributionPoint"
to that location, then I have specific the Ldap ip address 192.168.1.1 to
work around

Thank you

Mr555



"S. Pidgorny <MVP>" wrote:

> Which VPN server do you use and how do you configure it for CRL lookup (if
> applicable)?
> What CDPs are defined in the VPN client certificate properties?
> Not less important - what CDPs are defined in the VPN server certificate?
>
> --
> Svyatoslav Pidgorny, MS MVP - Security, MCSE
> -= F1 is the key =-
>
> >3 months ago we migrated to windows 2003 Server.
> >
> > We have moved the entire FSMO role from our old windows 2000 server "Corp"
> > to our new windows 2003 Server "Paul" Paul is now the forest root of our
> > network.
> > The ip address of Paul is 192.168.1.2
> >
> > Few weeks ago our windows 2000 certificate server "Spoon" die, we decided
> > to
> > rebuild the certificate server to windows 2003. The new certificate server
> > is
> > now called "Mugen" and is configured as a stand-alone root CA member
> > server.
> > The purpose of this certificate server is to authenticate VPN connection
> > to
> > our network and is operate together with our netscreen VPN / firewall.
> >
> > 15 days ago, our VPN / firewall failing to retrieve CRL from certificate
> > server. Therefore VPN connections stop working.
> >
> > Under extensive investigation, I have discovered we can only make our
> > VPN/firewll to automatically obtain CRL from the certificate server
> > "Mugen" ,
> > if we specific the old LDAP server IP address " corp." which is
> > 192.168.1.1,
> >
> > if I enter the ip address of Paul 192.168.1.2 to the VPN/ firewall
> > certificate settings, the automatic CRL retrieve will fail.
> >
> > I have checked with the firewall support team. They said netscreen does
> > support windows 2003 Server. They suspect I have not configured our
> > certificate server correctly to work under "Paul" LDAP Server.
> >
> > Questions:
> >
> > Are there any configuration or security policy I need to configure to
> > allow
> > communication between LDAP "Paul" server and certificate server " Mugen"?
> >
> > I need to specific "Paul" as the LDAP server on the VPN setup instead of
> > corp.
> > Server, please help
> >
> > Thank you
> >
> > Mr555
> >
> >
> >
>
>
>

Posted by S. Pidgorny on August 28, 2006, 7:21 am
Please log in for more thread options
You should be able to use any domain controller and point the LDAP url
accordingly, like:

ldap://192.168.1.2/CN=company1,CN=Paul,CN=CDP,CN=Public%20Key%20Services,CN=Services,CN=Configuration,DC=domain1,DC=co,DC=nz?certificateRevocationList?base?objectClass=cRLDistributionPoint

--
Svyatoslav Pidgorny, MS MVP - Security, MCSE
-= F1 is the key =-


> Hello
>
> Thank you so much for your input to my questions. I am new to certificate
> server, throught I just enabled the cetificate services will be OK. At the
> moment our VPN is operational. the only problem (serious problem) we are
> having is that it will only retrive new CRL from the certificate srever,
> if I
> specific the old LDAP server IP address which is 192.168.1.1 " corp server
> windows 2000" we are going to demote corp server soon, I got the feeling
> that
> some configuration is been done on corp server., possible I have to enable
> it
> on Paul Server 192.168.1.2 windows 2003. I am not sure what it is . so
> hopefully you will be able to help me with this.
> we are using netscreen 50 as our VPN server. under certificate options on
> our netscreen VPN server, a place where you have to specific the URL path,
> under the netscreen documentstions it saids I must copy it from the
> published
> CRL locations "
>
URL=ldap:///CN=company1,CN=Paul,CN=CDP,CN=Public%20Key%20Services,CN=Services,CN=Configuration,DC=domain1,DC=co,DC=nz?certificateRevocationList?base?objectClass=cRLDistributionPoint"
> to that location, then I have specific the Ldap ip address 192.168.1.1 to
> work around
>
> Thank you
>
> Mr555
>
>
>
> "S. Pidgorny <MVP>" wrote:
>
>> Which VPN server do you use and how do you configure it for CRL lookup
>> (if
>> applicable)?
>> What CDPs are defined in the VPN client certificate properties?
>> Not less important - what CDPs are defined in the VPN server certificate?
>>
>> --
>> Svyatoslav Pidgorny, MS MVP - Security, MCSE
>> -= F1 is the key =-
>>
>> >3 months ago we migrated to windows 2003 Server.
>> >
>> > We have moved the entire FSMO role from our old windows 2000 server
>> > "Corp"
>> > to our new windows 2003 Server "Paul" Paul is now the forest root of
>> > our
>> > network.
>> > The ip address of Paul is 192.168.1.2
>> >
>> > Few weeks ago our windows 2000 certificate server "Spoon" die, we
>> > decided
>> > to
>> > rebuild the certificate server to windows 2003. The new certificate
>> > server
>> > is
>> > now called "Mugen" and is configured as a stand-alone root CA member
>> > server.
>> > The purpose of this certificate server is to authenticate VPN
>> > connection
>> > to
>> > our network and is operate together with our netscreen VPN / firewall.
>> >
>> > 15 days ago, our VPN / firewall failing to retrieve CRL from
>> > certificate
>> > server. Therefore VPN connections stop working.
>> >
>> > Under extensive investigation, I have discovered we can only make our
>> > VPN/firewll to automatically obtain CRL from the certificate server
>> > "Mugen" ,
>> > if we specific the old LDAP server IP address " corp." which is
>> > 192.168.1.1,
>> >
>> > if I enter the ip address of Paul 192.168.1.2 to the VPN/ firewall
>> > certificate settings, the automatic CRL retrieve will fail.
>> >
>> > I have checked with the firewall support team. They said netscreen does
>> > support windows 2003 Server. They suspect I have not configured our
>> > certificate server correctly to work under "Paul" LDAP Server.
>> >
>> > Questions:
>> >
>> > Are there any configuration or security policy I need to configure to
>> > allow
>> > communication between LDAP "Paul" server and certificate server "
>> > Mugen"?
>> >
>> > I need to specific "Paul" as the LDAP server on the VPN setup instead
>> > of
>> > corp.
>> > Server, please help
>> >
>> > Thank you
>> >
>> > Mr555
>> >
>> >
>> >
>>
>>
>>



Posted by Mr555 on August 29, 2006, 8:18 pm
Please log in for more thread options
Hello S. Pidgorny

I agreed with your comment, I throught I can specify any DC.

I have tried your suggestions previously it won't work. the CRL will
automaticlly updates only if I put 192.168.1.1 under LDAP Server: settings

So you don't think there are any settings that may bind to our old DC "corp"
server ? i need to specify on our new 2003DC

This is how I specify on our VPN netscreen 50 under certificate optios > CRL
settings

CRL Settings

URL Address:
ldap:///CN=company1,CN=Paul,CN=CDP,CN=Public%20Key%20Services,CN=Services,CN=Configuration,DC=domain1,DC=co,DC=nz?certificateRevocationList?base?objectClass=cRLDistributionPoint

LDAP Server: 192.168.1.1

Refresh Frequency: Daily


"S. Pidgorny <MVP>" wrote:

> You should be able to use any domain controller and point the LDAP url
> accordingly, like:
>
>
ldap://192.168.1.2/CN=company1,CN=Paul,CN=CDP,CN=Public%20Key%20Services,CN=Services,CN=Configuration,DC=domain1,DC=co,DC=nz?certificateRevocationList?base?objectClass=cRLDistributionPoint
>
> --
> Svyatoslav Pidgorny, MS MVP - Security, MCSE
> -= F1 is the key =-
>
>
> > Hello
> >
> > Thank you so much for your input to my questions. I am new to certificate
> > server, throught I just enabled the cetificate services will be OK. At the
> > moment our VPN is operational. the only problem (serious problem) we are
> > having is that it will only retrive new CRL from the certificate srever,
> > if I
> > specific the old LDAP server IP address which is 192.168.1.1 " corp server
> > windows 2000" we are going to demote corp server soon, I got the feeling
> > that
> > some configuration is been done on corp server., possible I have to enable
> > it
> > on Paul Server 192.168.1.2 windows 2003. I am not sure what it is . so
> > hopefully you will be able to help me with this.
> > we are using netscreen 50 as our VPN server. under certificate options on
> > our netscreen VPN server, a place where you have to specific the URL path,
> > under the netscreen documentstions it saids I must copy it from the
> > published
> > CRL locations "
> >
URL=ldap:///CN=company1,CN=Paul,CN=CDP,CN=Public%20Key%20Services,CN=Services,CN=Configuration,DC=domain1,DC=co,DC=nz?certificateRevocationList?base?objectClass=cRLDistributionPoint"
> > to that location, then I have specific the Ldap ip address 192.168.1.1 to
> > work around
> >
> > Thank you
> >
> > Mr555
> >
> >
> >
> > "S. Pidgorny <MVP>" wrote:
> >
> >> Which VPN server do you use and how do you configure it for CRL lookup
> >> (if
> >> applicable)?
> >> What CDPs are defined in the VPN client certificate properties?
> >> Not less important - what CDPs are defined in the VPN server certificate?
> >>
> >> --
> >> Svyatoslav Pidgorny, MS MVP - Security, MCSE
> >> -= F1 is the key =-
> >>
> >> >3 months ago we migrated to windows 2003 Server.
> >> >
> >> > We have moved the entire FSMO role from our old windows 2000 server
> >> > "Corp"
> >> > to our new windows 2003 Server "Paul" Paul is now the forest root of
> >> > our
> >> > network.
> >> > The ip address of Paul is 192.168.1.2
> >> >
> >> > Few weeks ago our windows 2000 certificate server "Spoon" die, we
> >> > decided
> >> > to
> >> > rebuild the certificate server to windows 2003. The new certificate
> >> > server
> >> > is
> >> > now called "Mugen" and is configured as a stand-alone root CA member
> >> > server.
> >> > The purpose of this certificate server is to authenticate VPN
> >> > connection
> >> > to
> >> > our network and is operate together with our netscreen VPN / firewall.
> >> >
> >> > 15 days ago, our VPN / firewall failing to retrieve CRL from
> >> > certificate
> >> > server. Therefore VPN connections stop working.
> >> >
> >> > Under extensive investigation, I have discovered we can only make our
> >> > VPN/firewll to automatically obtain CRL from the certificate server
> >> > "Mugen" ,
> >> > if we specific the old LDAP server IP address " corp." which is
> >> > 192.168.1.1,
> >> >
> >> > if I enter the ip address of Paul 192.168.1.2 to the VPN/ firewall
> >> > certificate settings, the automatic CRL retrieve will fail.
> >> >
> >> > I have checked with the firewall support team. They said netscreen does
> >> > support windows 2003 Server. They suspect I have not configured our
> >> > certificate server correctly to work under "Paul" LDAP Server.
> >> >
> >> > Questions:
> >> >
> >> > Are there any configuration or security policy I need to configure to
> >> > allow
> >> > communication between LDAP "Paul" server and certificate server "
> >> > Mugen"?
> >> >
> >> > I need to specific "Paul" as the LDAP server on the VPN setup instead
> >> > of
> >> > corp.
> >> > Server, please help
> >> >
> >> > Thank you
> >> >
> >> > Mr555
> >> >
> >> >
> >> >
> >>
> >>
> >>
>
>
>

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