by Lakshmi Vijayakumar | Dec 30, 2018 | Server Management
Email errors are difficult to deal with, especially when they show unclear error codes like “SMTP 554 transaction failed”. The error shows that the email transaction between the sender and the receiver has failed. But, why did it fail? How can we fix this?...
by Lakshmi Vijayakumar | Dec 26, 2018 | Technical Support
Email errors are quite irritating, especially if they are abstruse like this “554 invalid DNS PTR resource record”. Here, the error message shows that the recipient rejects the email because of the invalid PTR record. But, what’s this PTR record? Do...
by Visakh S | Oct 16, 2018 | MySQL, Server Administration
Server errors are no fun. And it is especially frustrating when the error is cryptic, like “Unknown instance”. What does it mean, really? A common error people face in VPS, Cloud and Dedicated servers is MySQL failing with “stop: Unknown...
by Visakh S | Oct 4, 2018 | Server Administration
Here at Bobcares.com, we provide Outsourced Tech Support to web hosting providers. As part of our service, we resolve email errors posted by hosting users. A common email bounce error we see in VPS and Shared servers is: The rejected e-mail address was...
by Visakh S | Sep 27, 2018 | Server Management
On Sep 25th, security researcher Qualys disclosed a new Linux Kernel vulnerability dubbed Mutagen Astronomy (CVE-2018-14634) that allows attackers to gain administrator (root) privileges in unpatched Linux servers. Here at Bobcares.com, we maintain servers of web...
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