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How to enable SMB signing, syn-ack on windows 2008 domain controller

Posted on 2014-09-30
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Last Modified: 2015-02-10
Dear Support team,


Please advice, how we can implement below mentioned on windows 2008 domain controller

 
 
 How to enable

SMB Weaknesses
The SMB signing is disabled on the target systems.  
________________________

How we can set syn-ack

SYN-ACK retransmissions time limit has not been set;
'Turn off Untrusted Content' is not enabled;
________________________________________
 How to and which to services need to be stop

Active Processes
Multiple active processes are running on the system in-scope as listed in Appendix 2.
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Question by:tabreed
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3 Comments
 
LVL 79

Accepted Solution

by:
David Johnson, CD, MVP earned 500 total points
ID: 40356164
Defaults
Enabled by default on DC's, Disabled on Member Servers

Administrative Tools|Local Security Policy.
Local Policies  | Security Options | Microsoft Network Server
Digitally sign communications (always) properties set to enabled

you can also use group policy (the drawback is a 15% network overhead)
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Author Comment

by:tabreed
ID: 40356314
Thanks for your response, but in my DC it is disable. If I enable SMB is there will be any issues and can I enable on other servers like web server ERP server please advice

Thanks
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LVL 79

Assisted Solution

by:David Johnson, CD, MVP
David Johnson, CD, MVP earned 500 total points
ID: 40358657
signing of packets will incur about a 15% overhead, if you need this to comply with an audit then that is what you need to do.
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