Be aware: Debian will remove the release’s backports & updates repos from their mirrors, when that release stops receiving updates. Best explanation for 2019 can probably be found at: https://www.lucas-nussbaum.net/blog/?p=947
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Category: operating systems
Postfix – certificate verification failed
Another email server issue. Coincidentally, I noticed an error in the maillog when sending to my email address. Mar 2 15:13:40 mail postfix/smtp[28811]: certificate verification failed for mail.xxxxx.ca[144.217.111.73]:25: untrusted issuer /O=Digital Signature Trust Co./CN=DST Root CA X3 As it turned out, there was nothing wrong with the certificate or the issuer on the receiving end. […]
Benefits of VPS Hosting vs. Shared Hosting
With Virtual Private Server (VPS) hosting, you will have dedicated resources for your website. If your website receives a lot of traffic, you’ll want to be on a VPS. Perhaps more importantly, with regard to email, you might benefit from a VPS. With shared hosting, you share the global reputation of the email server with […]
Android security alert, Stagefright flaw: What to do?
A major security flaw has been discovered in Android operating systems, versions 2.2 & onward; it has been termed Stagefright. Miscreants can take control of affected Android devices simply by sending a specially crafted multimedia text message. Apparently, up to 1 billion devices around the world are at risk. Imagine a scenario where someone takes […]