Check mode

getenforce

Restore SELinux context recursively

sudo restorecon -R -v /mypath

Or define explicitly bin_t for the script

sudo semanage fcontext -a -t bin_t "/mypath/psft-appserver-APPDOM.sh"
sudo restorecon -v /mypath/psft-appserver-APPDOM.sh

Check SELinux context only for some files

ls -Z/-Zd /mypath/myfile

sudo firewall-cmd --list-all
sudo firewall-cmd --zone=public --add-port=443/tcp --permanent
sudo firewall-cmd --zone=public --add-forward-port=port=443:proto=tcp:toport=8443 --permanent
sudo firewall-cmd --reload

sudo sysctl -n net.ipv4.ip_forward # if 0, that means it's not active
echo "net.ipv4.ip_forward = 1" | sudo tee /etc/sysctl.d/99-forward.conf
sudo sysctl -p /etc/sysctl.d/99-forward.conf

sudo dnf install -y cifs-utils samba-client
sudo mount -t cifs -o username=yourwindowsusercode,uid=yourdefaultunixusercode,gid=yourdefaultgroupecode,file_mode=0664,dir_mode=0775,vers=3.0 //yourwindowsserver.yourdomain/yourshare /yourmountfolder

OR

sudo dnf install -y rclone fuse

rclone config
n) New remote
name> yourrclonealias
Storage> smb (50 / SMB / CIFS)
host> yourwindowsserver
user> yourwindowsusercode
pass> yourpassword

mkdir ~/yourmountfolder
rclone mount yourrclonealias: ~/yourmountfolder--vfs-cache-mode writes --daemon

rsync -avz --inplace --no-perms --no-group --no-times /anotherlocalfolder/ /yourmountfolder/
If it failed, to continue:
rsync -avz --size-only --partial --progress --stats --inplace --no-perms --no-group --no-times /anotherlocalfolder/ /yourmountfolder/

shopt -s direxpand

1. Get the current control_file location

SQL> show parameter control_files

NAME TYPE VALUE

control_files string /u01/oracle/dbaclass/control01.ctl

2. Set the new location of controfile:

SQL> alter system set control_files='/u03/oracle/dbaclass/control01.ctl' scope=spfile;

System altered.

3. start the database in nomount stage:

shutdown immediate;
startup nomount

4. Restore controlfile to new location:

RMAN> restore controlfile from '/u01/oracle/dbaclass/control01.ctl';

Starting restore at 13-JAN-19
using target database control file instead of recovery catalog
allocated channel: ORA_DISK_1
channel ORA_DISK_1: SID=2201 device type=DISK

channel ORA_DISK_1: copied control file copy
output file name=/u03/oracle/dbaclass/control01.ctl
Finished restore at 13-JAN-19

5. restart the database:

alter database mount;
alter database open;

6. Check the control_file again:

SQL> show parameter control_files

NAME TYPE VALUE

control_files string /u03/oracle/dbaclass/control01.ctl

Create a Dockerfile like this:

FROM your_image as initial
FROM your_image_base
COPY --from=initial / /

your_image_base should be something like 'alpine' - so the smallest image from which your image and its parents descend from.

Now build the image and check the history and size:

docker build -t your-image:2.0 .
docker image history your-image:2.0
docker image ls

./wlst.sh
You will get WLST prompt in offline mode, invoke the following command

wls:/offline> domain = "/opt/apps/user_projects/domains/domain_name"
Note: change the domain path if necessary

wls:/offline> service = weblogic.security.internal.SerializedSystemIni.getEncryptionService(domain)
wls:/offline> encryption = weblogic.security.internal.encryption.ClearOrEncryptedService(service)
wls:/offline> print encryption.decrypt("{AES}WDhZb5/IP95P4eM8jwYITiZs01kawSeliV59aFog1jE=")
weblogic123
wls:/offline>

Pour eliminer le Privacy Protection executer les étapes suivantes :

1°)taskkill.exe /F /IM privacy.exe
2°)Telechargement de trojan-killer.net
3°)Executer un Scan trojan Killer

1. Download patches

2. backup precheck
   cd precheck
   ps -ef |grep pmon > current_instance.txt
   ps -ef |grep tns > current_tns.txt
   cat /etc/oratab > current_oratab.txt
   $ORACLE_HOME/OPatch/opatch lsinventory > before_current_lsinventory.txt

3. Check conflicts
   export PATH=$ORACLE_HOME/OPatch:$PATH
   opatch version
   unzip <patch.zip> && cd <path folder>
   opatch prereq CheckConflictAgainstOHWithDetail -ph ./

4. Stop oracle database and listeners

5. Check
   ps -ef|grep pmon
   ps -ef|grep tns
   ps -ef|grep exp
   ps -ef|grep rman

6. Apply patch
   opatch apply

7. Check
   opatch lsinventory > after_current_lsinventory.txt

8. Start only oracle database (not the listener)

9. Patch data
   datapatch -verbose

10. Check
    sqlplus / as sysdba
    SET LINESIZE 400
    COLUMN action_time FORMAT A20
    COLUMN action FORMAT A10
    COLUMN status FORMAT A10
    COLUMN description FORMAT A40
    COLUMN version FORMAT A10
    COLUMN bundle_series FORMAT A10

SELECT TO_CHAR(action_time, 'DD-MON-YYYY HH24:MI:SS') AS action_time,action,status,description,patch_id FROM sys.dba_registry_sqlpatch ORDER by action_time;

10. Check stop and start
    sqlplus / as sysdba
    shutdown immediate
    startup
    select name,open_mode from v$database;

11. Start the listener

Open "psappsrv.ubx" file and navigate to the bottom and locate the section with environment settings (it begins with *PS_ENVFILE)

Add the following environment variable:
LLE_DEPRECATION_WARN_LEVEL=NONE

0 - My Oracle Support patch 6880880 (OPatch) : https://updates.oracle.com/download/6880880.html
1 - Download the Patch from oracle support
2 - Copy patches to folder where oracle dba user has access
3 - For 6880880, zip old OPatch folder in $ORACLE_HOME
4 - Shutdown oracle database server and listener
5 - For other patch, go to $ORACLE_HOME and run command : ./opatch apply <path where the patch is>/patch.zip
6 - Startup oracle database server and listener
7 - ./datapatch -verbose
8 - In sqlplus (/ as sysdba) run : @?/rdbms/admin/utlrp.sql
9 - In sqlplus, check remaining INVALID objects : select owner, count(*) count from all_objects where status = ‘INVALID’ group by owner;

apt-get install -y libaio1 alien
# Change version based on https://www.oracle.com/de/database/technologies/instant-client/linux-x86-64-downloads.html
# Example alternative: http://yum.oracle.com/repo/OracleLinux/OL7/oracle/instantclient/x86_64/getPackage/oracle-instantclient19.5-basiclite-19.5.0.0.0-1.x86_64.rpm
wget http://yum.oracle.com/repo/OracleLinux/OL7/oracle/instantclient/x86_64/getPackage/oracle-instantclient19.6-basic-19.6.0.0.0-1.x86_64.rpm
sudo alien -i --scripts oracle-instantclient*.rpm
rm -f oracle-instantclient*.rpm

# Optionally install SQLPlus
wget http://yum.oracle.com/repo/OracleLinux/OL7/oracle/instantclient/x86_64/getPackage/oracle-instantclient19.6-sqlplus-19.6.0.0.0-1.x86_64.rpm
sudo alien -i --scripts oracle-instantclient*.rpm
rm -f oracle-instantclient*.rpm

Note to take :
lvdisplay => note PV Path and note VG Name to extend (for LV Path/Name choosed), for example "system".
vgdisplay => confirm format (lvm2)

After adding disk or resize VDI :
fdisk -l
fdisk /dev/sda => add new primary or logical volume, for example "sda3"
pvscan or pvdisplay or pvs => does NOT show new partition
pvcreate /dev/sda3
pvscan or pvdisplay or pvs => show new partition
vgextend system /dev/sda3 (where system is VG Name)
lvextend -l +100%FREE /dev/system/root (where /dev/system/root is the PV Path noted before)
resize2fs /dev/system/root

It's done.
Confirm with df -h command

Activer à la mano le mode userspace de systemd pour certains utilisateurs