Administracja sieci teleinformatycznych
Cyberbezpieczeństwo
ORACLE PATCH
download opatchdownload patchunpackshutdown instanceread README filechange directory to unpacked archiveopatch applyrun Post Installation Instructionscheck patches allready install:opatch lsinventoryopatch lsinventory -detailcheck patch:opatch query -all...
LINUX CDRECORD
burn DVD:1. create ISO filemkisofs -r -o plik.iso /[directory_to_burn/- DVD+RW2. disk format (only once in case of new disk):cdrecord -v dev=/dev/hdc -format3. burn:cdrecord -v dev=/dev/hdc speed=4 -dao -data file.iso4. next record do not need erase disk- DVD-RW2....
LINUX SCREEN
komendy bash screen -lslista sesji SCREEN screen -r [session]ponowne podpięcie pod aktywną sesję screen -xpodpięcie pod sesję wielu użtkowników screen -dmS [session] [app]uruchomienie aplikacji bez uruchamiania SCREEN komendy w SCREEN komendaopis C-a dodpięcie od okna...
LINUX MAIL, MAILX
mail #readmail -f #read from mbox file? | l #list commandsz+ #screen forwardz- #screen backward= #show nr of current message+ #next message- #previous message$ #last messageh #show headers of allto * #as above, different formatsi #size current messagep #print current...
ORACLE FLASHBACK
FLASHBACK DEPEND ON UNDO DATA-conditions:UNDO_MANAGEMENT=AUTOUNDO_RETENTION=900 #(in seconds 900 equal 15min, if value is extended UNDO tablespace will be increased also)only for DML because FLASHBACK use data directory, but DDL cause ORA-01466only for DELETE because...
LINUX CRYPTSETUP
create:cryptsetup --verbose --verify-passphrase luksFormat /dev/sda1open:cryptsetup luksOpen /dev/sda1 usbformat:mkfs.ext2 /dev/mapper/usbmount:mount /dev/mapper/usb /usbumount:umount /usbclose:crypsetup luksClose usbon diskcryptsetup luksFormat [partition]cryptsetup...