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How to fix email error 552 – ‘5.3.4 Message size exceeds fixed maximum message size’ in Exchange servers
Users sending messages with attachments to recipients hosted in Exchange servers can end up receiving bounce mails due these attachments. Our Support Engineers support hundreds of Exchange servers for web hosts, web designers and other online businesses. In these...
LXC vs Docker – What’s the best for your website?
Due to its 'light-weight' reputation, container technologies such as Docker and LXC get a lot of attention from online businesses these days. Docker and LXC are suited for different purposes. But in the flurry of information floating in the internet, these differences...
How to update PHP version in Amazon Linux to PHP 5.6
Did you know that each PHP version is fully supported only for two years from its initial stable release? Unsupported versions are vulnerable to security exploits, which is why you need to timely update PHP versions. In the case of AWS, PHP upgrade should be performed...
How to auto-restart Docker containers after a host server crash
Docker containers can be used to host applications ranging from one-time testing to 24/7 web hosting instances. Depending on its purpose, the system setup can vary. Every Docker machine runs a 'docker' daemon, which is required for the containers to function. But...
Docker vs Virtual machines – What’s best for your business?
Though Docker containers are sometimes referred as 'light-weight VMs', they are not VMs (virtual machines). Both serve different purposes, and hence one cannot replace the other. Their underlying architecture is what differentiates Docker from Virtual machines. While...
How to fix RoundCube Command Execution vulnerability in Linux servers
On Dec 6th, a Command Execution Vulnerability was disclosed in the open source webmail software called RoundCube. Using this vulnerability, an attacker can easily execute arbitrary system commands, which could be used to inject malware or take control of the server....
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