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WordPress v4.5.3 vulnerable to Denial of Service (DoS) exploits via CVE-2016-6896 and CVE-2016-6897 – Here’s how to fix it
If your website runs on WordPress v4.5.3 website, attackers can now bring down your site through a Denial of Service attack. This is possible through two vulnerabilities that were disclosed on 22nd Aug: CVE-2016-6897 - This is a Cross Site Request Forgery...
How to mitigate VMware vIDM local privilege escalation vulnerability
VMWare has issued a latest security advisory VMSA-2016-0013, which addresses two critical vulnerabilities of VMWare products - CVE-2016-5335 and CVE-2016-5336. These are severe vulnerabilities that affect VMware Identity Manager and vRealize Automation software....
Top 5 causes for email error “451 Temporary local problem – please try later” and How to fix it in Outlook, Exim, Postfix and MailEnable
'451 Temporary local problem' is one of the most commonly reported email errors in web hosting servers. Our Support Engineers provide tech support & server management for many hosting companies, and we've seen several variants of this error. A typical error looks...
2 common causes for Email Error 551, and How to fix it in MailEnable, Plesk, Outlook, Thunderbird and Eudora
Email Error 551 is an SMTP error commonly seen in MailEnable servers, and is seen in two forms: 551 Sender address is not valid for your login and 551 This mail server requires authentication before sending mail from a locally hosted domain MailEnable is widely used...
How we setup AWS disk usage monitoring for EC2 instances
An EC2 instance without enough free disk space, can crash instantly. That's why having a proper AWS disk usage monitoring system is vital for EC2 instances. Amazon provides CloudWatch monitoring script for EC2 Linux-based instances. But it requires...
2 non-obvious reasons for “550-Please turn on SMTP Authentication” error in cPanel & Exchange servers, and what to do about them
SMTP error from remote mail server after RCPT TO:<user@domain.com>: host domain.com [xx.xx.xx.xx]: 550-Please turn on SMTP Authentication in your mail client. 550-(mail.server.net) [xxx.xxx.xxx.xxx]:36825 is not permitted to relay through 550 this server without...
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