How to Setup Let’s Encrypt on Ubuntu 18.04

Reading Time: 3 minutes

Sites with SSL are needed more and more every day. Its ubiquitous enforcement challenges website encryption and is even an effort that Google has taken up. Certbot and Let’s Encrypt are popular solutions for big and small businesses alike because of the ease of implementation.  Certbot is a software client that can be downloaded on a server, like one of our Ubuntu VPS servers, to install and auto-renew SSLs. It obtains these SSLs by working with the well known SSL provider called Let’s Encrypt. In this tutorial, we’ll be showing you a swift way of getting HTTPS enabled on your site.  Let’s get started! Continue reading “How to Setup Let’s Encrypt on Ubuntu 18.04”

Plesk to Plesk Migration

Reading Time: 9 minutes

Migrating from one Plesk installation on your VPS server or Dedicated server to another server is easy with the Plesk Migrator Tool! The Plesk team has done a great job creating an easy-to-use interface for migrating entire installations of Plesk to a new server.

If you need to move files, users, subscriptions, FTP accounts, mail and DNS servers setup through Plesk, this guide will help you successfully navigate the process and come out victorious!

We will be splitting this tutorial into three sections:

Continue reading “Plesk to Plesk Migration”

Install Poweradmin on Ubuntu 16.04

Reading Time: 3 minutes

What is Poweradmin?

Poweradmin is a web-based graphical user interface to interact with PowerDNS. It is released under the open source GPL license. It makes it easy to create and edit zone files and interacts directly with the SQL server. Poweradmin has full support for most PowerDNS features, including all zone types (master, native and slave), supermasters, for automatic provisioning of slave zones and full support for A, AAAA, CNAME, HINFO, MX, NS, PTR, SOA, SRV and TXT record types, validation against RFC’s. It also has user and permission management setup for controlling user permissions with templates.  In this tutorial, we’ll be showing you how to install and configure Poweradmin as well as some records.

Continue reading “Install Poweradmin on Ubuntu 16.04”

Gmail Blacklist

Reading Time: 4 minutes

As one of the most trusted email providers, Google keeps top-notch security by maintaining their own blacklist and security information. With the numerous users the company provides email accounts to, there is an overwhelming amount of data that Google can scrutinize for spam or malicious emails. By gathering this valuable information, rules are created to filter problem content. These rules are highly sophisticated, and as this data is compiled, specific IP addresses are flagged and sorted into what is called a blacklist.

The Gmail blacklist is designed to prevent unwanted spam, malicious content and excessive amounts of emails. Some of the most common reasons for getting blocked are as follows;

  • Large amounts of emails sent from a new IP address.
  • Sudden changes in email volumes.
  • High bounce rates.
  • Spam reports from Gmail users.
  • Incorrect DNS settings.
  • Low sender scores.
  • IP listing in public blacklists.

Gmail’s blacklist may also take information from several public blacklists in order to block malicious/unwanted/compromised IP addresses prior to having any complaints from them. This is a preventative measure intended to keep the lowest amount of spam possible. All things considered, this is the reason your Gmail address will likely have far less unwanted emails or better filtering rules.

 

There are several effects to being on the Gmail blacklist, and the most obvious is that all email from the IP address sending mail will be blocked. This means everything including personal communication, bulk messages, email lists, etc. Not only will it block the problem domain or user, but everything else on the SMTP server attempting to use that IP address.

This poses a large issue for shared IP addresses on any server. But there is hope! Both in the form of preventative measures and ways to redeem your IP address and clear it from the blacklist. Before clearing your IP address we highly suggest you review the information to make sure nothing has been compromised. Blacklists often mean an email has been hacked, or there are just poor emailing practices.

Preventatively, you can protect the IP you are using with SPF records should you have no current issues. These records will assist in providing additional verification for the IP address you are using and help keep your IP clean.

 

If you’re already experiencing issues with Gmail delivery, then the first step is to diagnose the SMTP server. If this is a managed environment, it’s best to contact your hosting provider and ask them to review the specific email address having issues. Be sure to include example messages, any bounce backs you’ve received and any specifics you can remember. (Subject lines, recipients, time of email, etc.) This should help in the retrieval of data.

You can actually get a full copy of the headers of any messages having issues directly from your email client. If you need information on how to do this, you can always check out this article. View full e-mail headers.

If you are having trouble delivering mail and can’t find any fault on your SMTP server, then it’s time to search some blacklists to test the waters. One of the most reputable places to start is mxtoolbox.com. Although Gmail does not state what mechanisms they used to blacklist, this site allows you to search your domain and query numerous blacklists that should tell you if there are issues coming from your server. Along with cleanup instructions and links to each blacklist, this site is a handy tool for anyone looking to admin their own email.

There are several other sites that can be referenced for blacklist checking, but unfortunately, the only way to get information from Google specifically. If you are not on a blacklist and there are no issues coming from the SMTP server, then it’s time to fill out a Delivery Problem Form. This form asks for basic information as well as any technical information you can provide. The more information you can provide, the easier your process will become for a listing check and possible removal or delisting.

From there, Google should help you through the rest of the process or provide further information that will move the issues along. But that still leaves us with one question….

 

Well, the guidelines differ depending on what you are using email for. As some of us just use email for personal use the rules are pretty simple. Don’t send malicious content, make sure you don’t attempt to use huge files or send to everyone in your address book every thirty minutes for no reason, etc. These are all suspicious behaviors or hard rules that will either fail or cause issues.

Really we can boil the best practices down to a few important rules of thumb.

  • Do not spam.
    • This includes redirects. Google has specific best practices for pulling email from other accounts, so setting up forwarders in other SMTP servers to shovel all mail over to Google addresses will simply count as spam.
  • Follow the bulk mail guidelines.
  • Pull, don’t push.
    • Meaning import messages or set Google to pull from a third party; don’t forward to Google automatically. (Manual forwarding to share information is perfectly fine.)
  • Use SPF records.
    • SPF records are great added security and verification.
  • Change your passwords frequently.
    • Remember, passwords are vital and knowing the best practices for safe passwords is very important.
  • Watch for, and read bounce back emails.

Following the few suggestions above will keep your SMTP server healthy and happy. When all information intended for Google is pulled via their methods, the likeliness of being blocked for false positives (meaning blocked for legitimate practices done incorrectly) will go down exponentially.

don’t hesitate to contact our support department for more answers! You can reach us via our toll free number at 1-800-580-4985, or, use our International number at 517.322.0434. You can also open a ticket with us using the support@liquidweb.com email or, open a ticket from your Manage interface. Lastly, there’s always our chat option if you need quick info on smaller issues. Whatever means you choose, do not hesitate to contact us, as we are always standing by to offer our assistance and support! Thanks for hosting with Liquidweb!

 

 

Change Primary Domain in WHM

Reading Time: 4 minutes

If you use multiple aliases ( previously called parked domains) within a cPanel account, you may find yourself wanting to change the main domain used for the cPanel account containing these domains. Changing the primary domain is desirable for multiple reasons and many times occurs when the site in use switches from one TLD to another (i.e., .net to .com). You may desire to change this if the name of your company or site changes. Continue reading “Change Primary Domain in WHM”

A Beginner’s Guide to Managed WordPress

Reading Time: 7 minutes

Thank you for choosing Managed WordPress at Liquid Web! We hope this guide will help you get started in making the most of your experience with the Managed WordPress Portal. There are some great features in the portal, and we’ve worked hard to make sure site maintenance is a cinch. Continue reading “A Beginner’s Guide to Managed WordPress”

What is Power DNS?

Reading Time: 2 minutes

PowerDNS (pdns) is an open source authoritative DNS server that works as an alternative to traditional BIND (named) DNS. PowerDNS offers better performance and has minimal memory requirements. PowerDNS also works with many supporting backends ranging from simple zone files to complex database setups as well as various SQL platforms (Mysql, MariaDB, Oracle, PostgreSQL). Continue reading “What is Power DNS?”

Understanding the DNS Process

Reading Time: 8 minutes

Do you ask yourself, “What is DNS?” “Do I need to use DNS?”  Do you feel confused? In some cases, DNS can be convoluted and complicated.  Let’s talk about Domain Name System (DNS) services. When you need to access a website, you type the domain name, such as www.google.com, into the web browser instead of typing an IP address. A conversion happens between www.google.com to 172.217.12.46, an IP, which designated to a device on the Internet. This conversion is a DNS query, an integral part of devices connecting with each other to communicate over the internet. To understand the DNS query process, let’s talk about how a DNS query routes through different components.

Continue reading “Understanding the DNS Process”

DNS Zones Explained

Reading Time: 3 minutes

DNS Zones

A DNS Zone is a portion of the DNS namespace that is managed by an organization or administrator. It serves as an administrative space with granular control of DNS components and records, such as authoritative nameservers. There is a common misconception that a DNS zone associates only with a single domain name or a single DNS server. In actuality, a DNS zone can contain multiple domain and subdomains. Multiple zones can also exist on the same server.  Information stored for a DNS zone lives within a text file called a DNS zone file. Continue reading “DNS Zones Explained”