The following procedure adds encryption to pre-installed Ubuntu 18.04 on Dell XPS 13 7390: Within a console or terminal, sudo into root. $ sudo su – Create LUKS encrypted file container (20,000 Megabytes or 20GB, for example). # dd status=progress if=/dev/zero bs=1M count=20000 of=/.hostname-home.img # cryptsetup luksFormat /.hostname-home.img Open LUKS encrypted file container. # cryptsetup […]
As the holiday season nears, a new laptop for developing skills and personal projects is worth considering. The Dell XPS 13 7390, with an Intel® Core™ i7-10710U processor, is really enticing. Windows 10 Pro, an M.2 PCIe NVMe SDD, and non-touch display are motivating as well. As with other big purchases, a decision will require […]
System.InvalidOperationException: Cross-thread operation not valid. Control “textBox1” accessed from a thread other than the thread it was created on. The above exception was encountered while placing a function call with long execution time on a separate thread and having that thread update a TextBox with status updates. The issue arises, because “access to Windows Forms […]
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Login attempts can be tracked in real time with the following command: /bin/utmpdump -f /var/log/btmp I received a Logwatch email reporting a “corruption detected in /var/log/btmp : XX time(s)” issue. By performing an Internet search for the reported issue, I found Gabriel Cánepa’s How to Monitor User Login History on CentOS with utmpdump. Cánepa describes […]