by Visakh S | Aug 7, 2015 | cPanel
550: No such user here is a common error reported by cPanel users who primarily use an external mail server (like a corporate MX) to store their mail. These include users who are trying to setup a mail forward to an external mail server, those who recently migrated or...
by Visakh S | Aug 5, 2015 | cPanel, Server Administration
On July 1st, ARIN (American Registry for Internet Numbers) sent out a notification that it may not be able to give out IPv4 blocks of larger than 512 addresses. This officially makes the decade old prediction of IPv4 running out a reality, and makes it necessary for...
by Visakh S | Jul 31, 2015 | cPanel, DirectAdmin, Plesk, Server Management
On 28th July Internet Systems Consortium announced a critical vulnerability (CVE-2015-5477) in all BIND DNS server versions from 9.1.0 to 9.9.7-P1 and 9.10.2-P2. It allows a remote attacker to exploit an error in handling TKEY queries to launch a Denial of Service...
by Visakh S | Jul 30, 2015 | Apache, cPanel, DirectAdmin, Plesk, Technical Support
In cPanel, Plesk and DirectAdmin servers that have WordPress websites, high server load is sometimes reported with “xmlrpc.php” showing up as the top CPU hog. xmlrpc.php is a file in WordPress websites used for remote publishing and ping-back tracking....
by Visakh S | Jul 24, 2015 | cPanel, DirectAdmin, Plesk, Server Administration
Qualys reported on 23rd July an important root privilege escalation vulnerability (CVE-2015-3246), and DoS attack vulnerability (CVE-2015-3245) for Linux servers using RedHat’s libuser package. Here’s how you can protect your cPanel, Plesk and DirectAdmin...
by Visakh S | Jul 23, 2015 | cPanel
Customers who use Outlook to access email accounts hosted on cPanel/WHM email servers sometimes report the error 503 Valid RCPT command must precede DATA when trying to send their mails. This is often reported for servers in which SMTP authentication is enabled. What...
