Deployment is not happening - Continous failover happening due to SI changes - DNS.rules having problem

[harmesh88]

Dear Team ,

We are facing issue after apply threat intelligence policy - automatic failover happening continuously 

Cisco FMC is in VM  Software version is 6.6.1

Cisco Firepower FTD - 2130 in HA -- Software version is 6.6.1

we came to know that below bug hit for error --Failed to parse DNS rules file

https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvs55990/?rfs=iqvred

We have applied work around in one device which started properly but in other device is not started snort process however workaround applied .

SO if any one faced same kind of issue please help us -  

[harmesh88 · Accepted solution]

Getting below error in standby Cisco FTD

>> Rule engine failed to create the DNS rules set for 

>> Unexpected end of line at line number

Bug Found :- https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvw41443/?rfs=iqvred

Applied workaround found in this link and resolved issue - deplolyment done with success and failover started without error

Thanks team