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 »
This is a follow up tutorial on the DRBD replication posts about promoting the DR site as the main site when PR is failed. 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… Read More »
This is a follow up tutorial on the DRBD replication posts about gracious role switching of live sites configured with DRBD replication. 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… Read More »
The following is a very interesting post about different database technologies and when to use them. It is a good way read that helps you to explain to people that you do not have to use some DB tech only because is the new cool boardroom word 🙂 When to use Cassandra, MongoDB, HBase, Accumulo… Read More »
A great introduction to blockchain hype, void of all the marketing blah-blah and boardroom nonsense. A must read for anyone that wants to know what blockchain is all about. What is Blockchain Technology? A Step-by-Step Guide For Beginners [paypal_donation_button]