I am trying to match the pattern for DC logs and here is my XML format Here's the patterndb.xml file at /opt/syslog-ng/var/patterndb.xml" --------------------------------------- <?xml version='1.0' encoding='UTF-8'?> <patterndb version='3' pub_date='2011-12-21'> <ruleset id='90c9b341f4e3d63c5ed8b29950491bf8' name='Domain Ctrls'> <rules> <rule provider='localtest' id='012c230f236d6a3f761ba956e7dff26a' class='system'> <patterns> <pattern> @ESTRING:user::@ Security Microsoft Windows security auditing.: [Success Audit] A computer account was changed. Subject: Security ID: S-1-5-7 Account Name: ANONYMOUS LOGON Account Domain: NT AUTHORITY Logon ID: 0x3e6 Computer Account That Was Changed: Security ID: @ESTRING:: @Account Name: @ESTRING:*ACC_NAME*: @ Account Domain: testdomain Changed Attributes: SAM Account Name: - Display Name: - User Principal Name: - Home Directory: - Home Drive: - Script Path: - Profile Path: - User Workstations: - Password Last Set: @ESTRING:: @@ESTRING:: @ Account Expires: - Primary Group ID: - AllowedToDelegateTo: - Old UAC Value: - New UAC Value: - User Account Control: - User Parameters: - SID History: - Logon Hours: - DNS Host Name: - Service Principal Names: - Additional Information: Privileges: - (EventID 4742) </pattern> </patterns> </rule> </rules> </ruleset> </patterndb> --------------------------------------- Here's the syslog-ng conf extract: --------------------------------------- parser pattern_db { db_parser( file("/opt/syslog-ng/var/patterndb.xml") ); }; destination patt_d{ file("/data/test/${R_YEAR}/${R_MONTH}/${R_DAY}/Domain_Ctrl__${SOURCEIP}_${R_YEAR}_${R_MONTH}_${R_DAY}.log" owner("test") group("test") perm(0660) dir-owner("test") dir-group("test") dir-perm(0770) template("$*ACC_NAME*\n $MSG\n") ); }; --------------------------------- but the *ACC_NAME* returns blank, although the log contains that field. -- Thanks Anup