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How to fix Amazon EC2 IP blacklisting in Spamhaus PBL and other email RBLs

How to fix Amazon EC2 IP blacklisting in Spamhaus PBL and other email RBLs

Amazon claims to have a system to white-list all their IP addresses at Spamhaus regularly. But we still see Amazon EC2 users reporting mail issues due to IP blacklists by Spamhaus.

IP blacklisting occur when your mail server gets compromised due to any malware or open vulnerabilities. Attackers can hijack your mail server and send spam mails from it. (more…)

AWS Port 25 block – Why does it happen and how to fix it?

AWS Port 25 block – Why does it happen and how to fix it?

From payment confirmation to support queries, emails play a vital role in online business communication. Delayed alerts or lost orders end up adversely affecting the business.

In AWS EC2 instances, mail delivery problems can happen due to many reasons, mainly port 25 connection limits, IP blacklists and port 25 blocks.

(more…)

How to fix Fatal error: Class ‘PDO’ not found in PHP apps like Drupal, Prestashop, Joomla, etc

How to fix Fatal error: Class ‘PDO’ not found in PHP apps like Drupal, Prestashop, Joomla, etc

Fatal error: Class ‘PDO’ not found is an error seen in websites running PHP applications such as Drupal, Prestashop, WordPress, etc. It’ll look something like this:

Fatal error: Class 'PDO' not found in /home/romrac/public_html/drupal/includes/database/database.inc on line 187

This error reports that the web server was unable to locate a PHP module called “PDO” in the server. Web applications require this PHP module to establish a database connection. (more…)

HTTP/2 is vulnerable to DoS attacks. Here’s how to fix them.

HTTP/2 is vulnerable to DoS attacks. Here’s how to fix them.

Everyone loves fast, secure websites. Google’s SPDY and it’s successor HTTP/2 was seen as a big step towards that goal.

As of Aug 6th 2016, 9.1% of websites use HTTP/2, and the trend is seeing a steep rise. All looked good. (more…)

How support quality management builds customer loyalty?

How support quality management builds customer loyalty?

Getting a new customer is multiple times harder than retaining one. But customers would stay only if they receive top quality support service.

In web hosting support, slow responses and recurring issues often lead to customer attrition. That’s why quality management is crucial to build customer loyalty. (more…)

Top 5 reasons why 24/7 expert server monitoring is important for security and uptime

Top 5 reasons why 24/7 expert server monitoring is important for security and uptime

People love fast websites, and so does Google. It’s then no surprise that the top spots in Google search results are occupied by fast websites with high uptime.

It’s a popular belief that using a monitoring tool is a good hedge against preventing or recovering from a downtime. In reality, by the time an alert is received, and help called for, a website would have gone down. (more…)

Top 3 help desk performance metrics for web hosting companies

Top 3 help desk performance metrics for web hosting companies

Your customers wont love you for bad service, but your competitors will. That’s why its crucial to hire the best server management company that would help you assure excellent customer service.

In our role as Outsourced Tech Support for web hosts, we manage the support helpdesks 24/7, for our customers. And there isn’t a better way to assess the support quality, than the help desk performance metrics.

Help desk can give you a lot of information, and analyzing all of it may be a hectic task. Here we’ll see the top 3 metrics that can help you improve your customer experience. (more…)

Setting up AWS for HTTP/2 support

Setting up AWS for HTTP/2 support

As per recent statistics, websites adopting HTTP/2 protocol are rapidly increasing and around 68% of HTTPS traffic is now attributed to HTTP/2.

HTTP/2 uses techniques to minimize the number of connections and proactively serve page resources to improve site speed and performance.

 

(more…)

Docker vs Rkt (Rocket) – Which one to choose?

Docker vs Rkt (Rocket) – Which one to choose?

In 2013, Docker introduced an easy way to build and ship applications. Currently at version 1.11, Docker is now perhaps the most popular light weight virtualization technology used by application developers.

However, Docker now has a competitor – rkt (aka rocket) which offers some unique features. So, what’s the difference? (more…)

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