Tuesday, July 28, 2020
Unable to perform application-aware processing of Oracle database Veeam Backup
Your database is running in noarchivelog that is the reason for this error
Tuesday, July 21, 2020
Microsoft SQL Server, Error: 15023
USE MY_DB;
EXEC sp_change_users_login 'Auto_Fix', 'sa_web';
The row for user 'sa_web' will be fixed by updating its login link to a login already in existence.
The number of orphaned users fixed by updating users was 1.
The number of orphaned users fixed by adding new logins and then updating users was 0.
EXEC sp_change_users_login 'Auto_Fix', 'sa_web';
The row for user 'sa_web' will be fixed by updating its login link to a login already in existence.
The number of orphaned users fixed by updating users was 1.
The number of orphaned users fixed by adding new logins and then updating users was 0.
Monday, July 20, 2020
How to purge audit logs on Oracle 11g
https://docs.oracle.com/cd/E11882_01/network.112/e36292/auditing.htm#DBSEG472
Manually Purging the Audit Trail
You can manually purge the audit trail right away, without scheduling a purge job. Similar to a purge job, you can purge audit trail records that were created before an archive timestamp date or all the records in the audit trail.
Note the following about the
DBMS_AUDIT_MGMT.CLEAN_AUDIT_TRAIL
PL/SQL procedure:- Only the current audit directory is cleaned up when you run this procedure.
- On Microsoft Windows, because the
DBMS_AUDIT_MGMT
package does not support cleanup of Windows Event Viewer, setting theAUDIT_TRAIL_TYPE
property toDBMS_AUDIT_MGMT.AUDIT_TRAIL_OS
has no effect. This is because operating system audit records on Windows are written to Windows Event Viewer. TheDBMS_AUDIT_MGMT
package does not support this type of cleanup operation. - On UNIX platforms, if you set the
AUDIT_SYSLOG_LEVEL
initialization parameter to a valid value as listed in Oracle Database Reference, then Oracle Database writes the operating system log files to syslog files. If you set theAUDIT_TRAIL_TYPE
property toDBMS_AUDIT_MGMT.AUDIT_TRAIL_OS
, then the procedure only removes.aud
files under audit directory (This directory is specified by theAUDIT_FILE_DEST
initialization parameter). - When the
AUDIT_TRAIL_TYPE
parameter is set toDBMS_AUDIT_MGMT.AUDIT_TRAIL_XML
, this procedure only cleans up XML audit files (.xml
) in the current audit directory. Oracle Database maintains an index file, calledadx_
$ORACLE_SID
.txt
, which lists the XML files that were generated by the XML auditing. The cleanup procedure does not remove this file.
For database audit trails, you must initialize the cleanup infrastructure by running the
DBMS_AUDIT_MGMT.INIT_CLEANUP
procedure, and then purging the database audit trail by using the method described in "Purging a Subset of Records from the Database Audit Trail".
To manually purge the audit trail:
- Follow these steps under "Scheduling an Automatic Purge Job for the Audit Trail":
- Purge the audit trail records by running the
DBMS_AUDIT_MGMT.CLEAN_AUDIT_TRAIL
PL/SQL procedure.For example:BEGIN DBMS_AUDIT_MGMT.CLEAN_AUDIT_TRAIL( AUDIT_TRAIL_TYPE => DBMS_AUDIT_MGMT.AUDIT_TRAIL_AUD_STD, USE_LAST_ARCH_TIMESTAMP => TRUE ); END; /
In this example:AUDIT_TRAIL_TYPE
: Enter one of the following values:DBMS_AUDIT_MGMT.AUDIT_TRAIL_AUD_STD
: Standard audit trail table,AUD$
DBMS_AUDIT_MGMT.AUDIT_TRAIL_FGA_STD
: Fine-grained audit trail table,FGA_LOG$
DBMS_AUDIT_MGMT.AUDIT_TRAIL_DB_STD
: Both standard and fine-grained audit trail tablesDBMS_AUDIT_MGMT.AUDIT_TRAIL_OS
: Operating system audit trail files with the.aud
extension. (This setting does not apply to Windows Event Log entries.)DBMS_AUDIT_MGMT.AUDIT_TRAIL_XML
: XML audit trail filesDBMS_AUDIT_MGMT.AUDIT_TRAIL_FILES
: Both operating system and XML audit trail filesDBMS_AUDIT_MGMT.AUDIT_TRAIL_ALL
: All audit trail records, that is, both database audit trail and operating system audit trail types
USE_LAST_ARCH_TIMESTAMP
: Enter either of the following settings:TRUE
: Deletes audit records created before the last archive timestamp. To set the archive timestamp, see "Step 4: Optionally, Set an Archive Timestamp for Audit Records". The default (and recommended) value isTRUE
. Oracle recommends that you setUSE_LAST_ARCH_TIMESTAMP
toTRUE
.FALSE
: Deletes all audit records without considering last archive timestamp. Be careful about using this setting, in case you inadvertently delete audit records that should have been deleted.
Purging a Subset of Records from the Database Audit Trail
You can manually remove records from the database audit trail tables. This method can be useful if you want to remove a specific subset of records. You can use this method if the database audit trail table is in any tablespace, including the
SYSTEM
tablespace.
For example, to delete audit records that were created later than the evening of February 28, 2009 but before March 28, 2009, enter the following statement:
DELETE FROM SYS.AUD$ WHERE NTIMESTAMP# > TO_TIMESTAMP ('28-FEB-09 09.07.59.907000 PM') AND NTIMESTAMP# < TO_TIMESTAMP ('28-MAR-09 09.07.59.907000 PM');
Alternatively, to delete all audit records from the audit trail, enter the following statement:
DELETE FROM SYS.AUD$;
Only the user
SYS
or a user to whom SYS
granted the DELETE
privilege on SYS.AUD$
can delete records from the database audit trail.Wednesday, July 15, 2020
Linux mount
1 uname -a
2 df -h
3 fdisk -l
4 fdisk /dev/sdb
5 fdisk /dev/sdb -l
6 fdisk /dev/sdc
7 fdisk /dev/sdc -l
8 fdisk /dev/sdd
9 fdisk /dev/sde
10 fdisk -l
11 mkfs -t ext4 /dev/sdb1
12 mkfs -t ext4 /dev/sdc1
13 mkfs -t ext4 /dev/sdd1
14 mkfs -t ext4 /dev/sde1
15 cd /
16 ll
17 mkdir /u01 /u02
18 ll
19 mkdir /u03 /u04
20 ll
21 mount /dev/sdb1 /u01
22 mount /dev/sdc1 /u02
23 mount /dev/sdd1 /u03
24 mount /dev/sde1 /u04
25 df -h
26 cd /u01
27 touch angel.txt
2 df -h
3 fdisk -l
4 fdisk /dev/sdb
5 fdisk /dev/sdb -l
6 fdisk /dev/sdc
7 fdisk /dev/sdc -l
8 fdisk /dev/sdd
9 fdisk /dev/sde
10 fdisk -l
11 mkfs -t ext4 /dev/sdb1
12 mkfs -t ext4 /dev/sdc1
13 mkfs -t ext4 /dev/sdd1
14 mkfs -t ext4 /dev/sde1
15 cd /
16 ll
17 mkdir /u01 /u02
18 ll
19 mkdir /u03 /u04
20 ll
21 mount /dev/sdb1 /u01
22 mount /dev/sdc1 /u02
23 mount /dev/sdd1 /u03
24 mount /dev/sde1 /u04
25 df -h
26 cd /u01
27 touch angel.txt
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