Everybody knows the importance of a daily back-up. There are a lot of tools with fancy GUIs and useless information but sometimes the best is to keep it simple. Linux offers some very powerful build-in ways of creating a perfect backup. The scope is to create a secure incremental automatic daily backup without using fancy… Read More »
Using SSD drives is no longer an exception, they are used in home systems but also in server systems to hold at least the OS, or other resources that need more speed than space. As any other storage disk a SSD can become fragmented as successive write/delete operations will try to use the available storage.… Read More »
The ripple effect of virtual assistants is something that appeared as an idea in a lot of SF movies. Think about Terminator or A.I. where we see this kind of ripple effect that starts from one A. I. and then ripples through all the A.I.s like a wave and washed everything including the human civilization.… Read More »
In another life (almost 14 years ago) for some years I had the privilege to be a member of one of the top European computer vision groups VISICS/PSI VISICS/PSI. My focus then was object categorization using neural networks, not a very popular topic at that time due to limitations in data availability and computation power.… Read More »
In an enterprise application based on hibernate running over DB2 we have to refer with several views and nicknames to external tables. This can be the case when SSO is used or there are some common static data (accounts, user entries, financial constants etc. ) that are kept in a centralized database repository and are… Read More »
That warm feeling that you contributed to the community when you find your bug report in an official release notes 🙂 There is a new firmware release EdgeRouter ER-8/ERPro-8/EP-R8: Firmware v1.9.1 that reports as fixed an issue first reported by me for the 1.9 firmware. The issue was reported in the thread Update to 1.9… Read More »
A very interesting report from EFF about the state of Cryptography and security threats in 2016 in: Technical developments in Cryptography: 2016 in Review [paypal_donation_button]
Yet another acronym, DMARC (Domain-based Message Authentication, Reporting & Conformance). This became very important due to the high-profile phishing done by russian state sponsored hacking groups involving spoofed e-mail addresses. By sending e-mails that looked as coming from credible sources they were able to infect systems connected to political entities: Clinton campaign staff, democrat party… Read More »
This is a follow-up tutorial on the DRBD replication posts about resynchronization of sites after the failed DR site is recovered. More than a year ago I described in a long tutorial how to use DRBD in a real production environment and the challenges associated to it. See: DRBD based disk replication of a production… Read More »
This is a follow-up tutorial on the DRBD replication posts about resynchronization of sites after the failed PR site is recovered (DRBD split brain recovery). More than a year ago I described in a long tutorial how to use DRBD in a real production environment and the challenges associated to it. See: DRBD based disk… Read More »