ksc11 master server unable to connect ksc 11 slave servers.

daru · November 7, 2019

Hi,

Unable to connect the slave servers from the new master server(win 2008 R2) after restoring the backup from the old KSc server. Ip -192.168.10.10

Earlier it was working fine on the KSC old server(win 10 Pro)

All KSC version - 11.0.0.1131

download the logs from the below link :

https://wetransfer.com/downloads/a75693c29ccf0d42183d0be3a9cf3c8020191107100722/704e1f6efd05edb6d9231a766e2b0fb920191107100722/be077c

error snapshot attached.

Thank You

Nikolay Arinchev · November 7, 2019

Hi,

Are there any firewalls between slave and master servers?

Is it possible to ping slave/master server`s address?

Thank you!

daru · November 7, 2019

Hi,

yes i am able to ping slave/master server`s address .

slave server are in different location connected via MPLS from one site to another.

Yes there is firewall between slave and master servers .

BR

Nikolay Arinchev · November 7, 2019

Could you please confirm that 13000TCP, 14000TCP, 13291TCP and 15000UDP are opened at these firewalls?

daru · November 9, 2019

Hi,

I confirm that 13000TCP, 14000TCP, 13291TCP and 15000UDP are opened on firewall.

It was working fine in old server. Only the issue occurred after installing kes11 on the new win2k8 server.

Please help us to resolve the issue.

Thank You

Kirill Tsapovsky · November 9, 2019

Hi,

I confirm that 13000TCP, 14000TCP, 13291TCP and 15000UDP are opened on firewall.

It was working fine in old server. Only the issue occurred after installing kes11 on the new win2k8 server.

Please help us to resolve the issue.

Thank You

Hello.

Was the master server the only one reinstalled, or the entire infrastructure? I.e. are the slave servers working properly on their own? Can they be directly connected to?

Error 0x4E5 is typical for trusted connection issues. Were the slave servers re-added after the old master server was taken down? In which order were the actions made between the former and current state?

Thank you.

daru · November 9, 2019

Only the master server reinstalled
Slaves are working fine
They can be directly connected
:The initial master server crashed

: No backups found
: Then another server created
On that server we connect the slaves
That server became the new master

daru · November 10, 2019

Hi,

Then again the server migration done
his time we restored the backup of the old server to new one
Ayan: We have deleted the slaves from old server and tried to add them on new one then the error came

Thank you

daru · November 10, 2019

Hi,

Please reply. Waiting for your positive response.

Thank you

daru · November 11, 2019

hi,

provided all info as required by you, still there is no response from your end. Please reply.

BR

Kirill Tsapovsky · November 11, 2019

Only the master server reinstalled
Slaves are working fine
They can be directly connected
:The initial master server crashed

: No backups found
: Then another server created
On that server we connect the slaves
That server became the new master

I have come across a similar case, where the same error occured after upgrading KSC from 10.5 to 11, due to specifics of that version. RnD suggested installing patch B on all the servers, after which the error was fixed and the hierarchy worked.

Do the servers in question have patch B installed?
https://support.kaspersky.com/15293

Please let us know the result.

Thank you.

daru · November 12, 2019

Hi,

After installed KSC 11 patch B on all the slave servers as well as on the Master server the issue remains same.

Thank You

daru · November 12, 2019

Hi,

Please provide us permanent resolution. provided all info as required by you, still there is no response from your end. Please reply.

Thank you

Nikolay Arinchev · November 12, 2019

Could you please confirm that master server connection(to slave server) wizard promts to add a certificate form slave server?

Thank you!

daru · November 13, 2019

hi,

yes,

master server connection(to slave server) wizard promts to add a certificate form slave server.

hank you!

Nikolay Arinchev · November 13, 2019

In that case please add a slave server`s certificate to wizard, add a maser server`s certificate at slave server(at server properties). Once master server`s certificate is added to slave server it will connect to master and should be authorized with master server`s certificate.

Please inform us about result.

daru · November 13, 2019

Hi,

Please provide me the steps how to do?

BR

daru · November 13, 2019

Hi,

Still waiting for your positive response. Kindly provide me the steps.

Thank You

daru · November 14, 2019

Hi Team,

Please help me how to add a slave server`s certificate to wizard, add a maser server`s certificate at slave server(at server properties). I dont have the knowledge to do the same.

BR

daru · November 14, 2019

Hi,

I am requesting so many times to help me out. But there is no reply from ur end. Why are you delaying. It's affecting business. Please reply immediately with high priority. Please help me how to add a slave server`s certificate to wizard, add a maser server`s certificate at slave server(at server properties). I dont have the knowledge to do the same.

Thank You

Nikolay Arinchev · November 15, 2019

Please refer to the screenshot attached.

daru · November 16, 2019

hi,

I have followed the same steps as mentioned in the screenshot but the result remains same. Invalid certificate while adding slave server certificate in the wizard of master server. But if I change slave server ti master server &master server to while following the wizard it connects successfully without any issues. But the opposite one doesn't work it says invalid certificate. Please provide permanent solution.

BR

Nikolay Arinchev · November 16, 2019

But if I change slave server ti master server &master server to while following the wizard it connects successfully without any issues

Could you please confirm that both servers are connected to each other?

daru · November 17, 2019

hi,

yes both servers are connected to each other.I am able to telnet from master to slave & vice versa.scenario 1 master server hdd crashed & motherboard faulty. Scenario 2 standby ksc master server was installed on windows 10 pc while putting old server ip & restored the backup, was working fine. Scenario 3 The old server got ready by replacing with new hdd & motherboard was repaired. Then installed the ksc by swapping the ip & restored earlier dated backup. After opening ksc the slave server was displaying as greyish. After clicking on the slave server its showing transport level error. Deleting the slaves & tried to add newly its showing Invalid certificate.

BR

Nikolay Arinchev · November 17, 2019

I`m not sure I understood you correctly.

Which one of scenarios causes the problem?

Or you are trying to create a cluster using Master/slave servers?

ksc11 master server unable to connect ksc 11 slave servers.

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