Author: Jonas

Virtualbox turtle in Win11 24H2

the turtle symbol is an indication for slow performance. the reason is VBS in win11 24H2: https://forums.virtualbox.org/viewtopic.php?t=113919 after m

Jonas Jonas Published on 2025-09-06

Configure TLS for Oracle 19c

Create CA Create certificate Create wallet and import certificate Configure listener and sqlnet Import CA into client

Jonas Jonas Published on 2025-09-04

WindTerm - open source SSH and terminal manager

MobaXterm is a great tool for windows. It is not free but worth the money. However it is windows-only. Under MacOS the Royal TSX is probably one of th

Jonas Jonas Published on 2025-09-01

Create and analyze Oracle AWR

Oracle AWR (Automatic Workload Repository) provides an insight of a running Oracle database by periodically, e.g. every 15 min, collecting different s

Jonas Jonas Published on 2025-08-31

Rotate oracle alert logs

Using adrci is a good solution to rotate the oracle alert logs.

Jonas Jonas Published on 2025-08-30

Use impdp with non-SYS user

Running impdp with dba is convinient, but can be risky. create a dedicated user for specific impdp tasks would be more secure. About DATA_PUMP_DIR it

Jonas Jonas Published on 2025-08-28

Oracle 19c ARM64 silent installation with VirtualBox on MacOS Apple Silicon M1 MacBook Pro

Recently on August 14 2025, VirtualBox 7.2 was released with native ARM64 support on MacOS with Apple Silicon M processor. This significantly improves

Jonas Jonas Published on 2025-08-21