Tomcat support in CentOS 7

Tomcat has had a great run with cPanel & WHM. Unfortunately, there are times in life when you know it’s time to say goodbye and gracefully remove yourself from the spotlight to allow others to get the chance to shine.

As you may know, cPanel will provide its first release of CentOS 7 support starting with cPanel & WHM version 11.50. For a variety of reasons, we will not be supporting Tomcat in CentOS 7.

The Tomcat version that cPanel currently supports is out of date and not supported by CentOS 7. Updating Tomcat to a newer version requires many dependency changes that cannot be fulfilled by the OS directly. Less than 0.1% of our user base uses Tomcat, and we feel that the amount of effort that it would take to get Tomcat running on CentOS 7 is better spent on EasyApache 4 and future expansion.

Our upcoming EasyApache release will ensure that Tomcat is no longer be available in either the EasyApache interface or the command line tools for servers running CentOS 7 or higher.

While it’s possible that Tomcat support will come back eventually, at this time our focus is shifting to EasyApache 4 and making the web stack expandable and customizable.

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cPanel vs Spam: Greylisting enters the fight!

Screen Shot 2015-03-16 at 11.08.45 AMcPanel is excited to announce that 11.50 will include a new feature that  dramatically reduces the amount of spam you and your customers receive: Greylisting.

Greylisting is the process of deferring emails from unknown senders. When the email arrives, Greylisting causes the server to return a message that boils down to, “I’m busy at the moment, try again in a bit.” Valid Mail Transfer Agents (MTAs), like Exim, will automatically retry many times. This retry time can be several minutes to start and last for several days. Invalid MTAs will simply give up and move to the next enticing spam target. We use these retry attempts as a way to weed out good email from bad.

cPanel created its own Greylisting daemon, cpgrey, that runs at SMTP receipt time. This means it happens before any real data is sent. The cpgrey daemon looks for a triplet: a source IP address, a source email address, and a destination IP address. If this combination has not been seen in a set time frame (this time frame is configurable), cpgrey will defer all email from that triplet for a set initial block time (again this time frame is configurable.) After the initial block time has expired, the system will accept email from the triplet until the max block time has expired.

Greylisting has its own interface in WHM that allows root users to configure many aspects of the system. You can set the time for the initial block, the must retry time, and the triplet expire time. You can also allow emails with valid SPF records to bypass Greylisting completely. The interface also includes a Trusted Hosts page that allows you to configure IP addresses and CIDR ranges to bypass Greylisting. Finally, we have added a simple report that allows you to see the current triplets in the Greylisting database. You can even add IP addresses and CIDR ranges directly from the report.

Screen Shot 2015-03-16 at 11.08.39 AM
cPanel users are able to control which of their domains use Greylisting through the Greylisting interface in both PaperLantern and x3. cPanel users will see a list of domains they control and a simple toggle to disable or enable Greylisting. Bulk actions to enable all or disable all are included in a gear icon located in the top right corner.
We highly recommend server administrators use Greylisting as a strong tool in their arsenal for combating spam.

Category: Uncategorized | 3 Comments

Inside cPanel: February Recap

(Scrum)ptious

 

King Cake

While it doesn’t have to be February to feel the love from our Employee Support Division (ESD), this past month the amazing crew of support staff outdid themselves in showing how much cPanel appreciates their talent. With opportunities for continuing education and training as well as a day filled with beignets and baked goods, February was a pretty sweet month to be a cPanel employee.

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3 Apps to Optimize Your Server Performance

Laptop

Server performance isn’t just an issue for hosting providers, it’s a big deal for web admins, and most of all, for the person staring into a blank browser window, waiting for a page to load. Not only can an overloaded server lead to poor user experience, it can also cause a major hit to a site’s search engine ranking. That’s why we’ve decided to take some time to share some of our favorite cPanel apps and plugins that will not only mitigate the load on your servers, but also work to ensure visitors to your hosted sites are getting the best experience possible.

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Category: App Spotlight, Tips & Tricks | 9 Comments

How to Set a Default Style with Paper Lantern

So you’ve developed a custom style for Paper Lantern and you’re ready to deploy it to your customers. Here’s how to set all customers on the box to your new custom style.

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Category: Product Development | 5 Comments

Off To WHD.global 2015

The cPanel team will be exhibiting at WHD.global March 24-26 in Rust, Germany. Even more exciting, we’ll be debuting our fresh new look! Stop by booth F20 to see what we mean.

Sneak Peek

Can’t wait for the big reveal? Tell us.

Attendees should also make sure to catch the following sessions:

  • “Inflate Your ARPU” – Wednesday, March 25th at 4:35PM
    Presented by Aaron Phillips, Chief Business Officer – cPanel
  • “Agile’s Not Just for Development Anymore” – Thursday, March 26th at 3:40PM
    Presented by Stephen May, Marketing Product Owner – cPanel

Need a free registration code? You got it. Just enter: LXUJLDB

See you there!

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Upgrade to Paper Lantern

Paper Lantern is still in development, but we are getting closer to shipping Paper Lantern as the default theme for cPanel & WHM. Our timeline has only a few more releases before support for x3 is dropped, so it’s time to start thinking about switching over to Paper Lantern permanently.

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Welcome Weebly: cPanel Conference 2015 Platinum Sponsor

Weebly Logo

Our anticipation for cPanel Conference 2015 has multiplied now that our friends at Weebly have jumped on board as a platinum sponsor! To find out how you can participate in our 10th annual conference, check out this year’s prospectus. Then join us, Weebly, and the rest of the hosting industry in Denver, Colorado this Fall.

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EasyApache 4 Announcement

Over the past several months, we have been working on the next generation of EasyApache. In EasyApache 4, we will make quite a few major changes to the way cPanel & WHM utilizes Apache HTTPd & PHP. This will initially be an opt-in update so that users can choose when to move to the new ecosystem, but at some point, this will be a required change.

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| Category: Product Development | 15 Comments
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