Month October 2019
A privilege escalation vulnerability being branded as “Dirty Cow” (CVE-2016-5195) was recently discovered and fixed yesterday in the Linux Kernel. It has existed for 11 years, so pretty much every device running Linux is affected (this includes VMs, physical machines, mobile… Continue Reading →
A massive DDoS (distributed denial-of-service) attack against a popular cloud-based DNS provider Dyn.COM took down major websites. The DYN.COM confirmed it on twitter: Follow Dyn ✔@Dyn We are aware of the ongoing service interruption of our Managed DNS network…. Continue Reading →
You know the scene. The database is just too slow. Queries are queuing up, backlogs growing, users being refused connection. Management is ready to spend millions on “upgrading” to some other system, when the problem is really that MySQL is… Continue Reading →
Ah, the wonderful feeling of being hauled out of the spa/candlelit dinner/Quake game to be told in panicked tones that there is a ‘database error’. You rattle off the usual suspects, determining that their keyboard is actually plugged in, monitor… Continue Reading →
I assume you know all about the my.cnf file, and how to set variables. key_buffer_size The key_buffer_size is probably the most useful single variable to tweak. The larger you set it, the more of your MyISAM table indexes you store… Continue Reading →
MySQL Server has tons of variables which may be adjusted to change behavior or for performance purposes. They are documented in the manual as well as on new page Jay has created. Still I see constant confusion out where which… Continue Reading →
What is phishing? Updated August 09, 2016. Phishing is a scam in which the attacker sends an email purporting to be from a valid financial or eCommerce provider. The email often uses fear tactics in an effort to entice… Continue Reading →
VMware has agreed to sell its government cloud business to QTS Realty Trust, one of the biggest data center service providers in the US. The deal comes about a month after VMware, now majority-owned by Dell, announced a major shift in… Continue Reading →
When we talk of memory, then its the most misunderstood parameters of the whole system,especially, when we talk of Unix as a system, its memory workflow is again different from Linux and so Unix memory management is out of scope… Continue Reading →