Q: Why is it not possible to have a CNAME and MX record for the same host name? For example, test.example.com cannot be both a CNAME and an MX record at the same time. A: Unfortunately, what you’re running into is a limitation of the DNS specification. According to RFC 1034 “If a CNAME RR […]
A frequent error that we often see with MX records is that a hostname is specified when it should not be. For example, ‘mail’ might be specified when ‘@’ should be. The screen capture below shows the @ symbol for the hostname value. @ is equal to the ‘root’ or ‘apex’ of the domain, in […]
Today we released cloud platform version 21.12.0 which includes a new WAN Optimization feature as well as a few bug fixes. Below is a list of the most notable changes you will find in this release. WAN Optimization: We released a new feature today to help improve network throughput across the ADC-as-a-Service platform where large […]
What is external monitoring? In a general sense, it means regularly checking on something to find out what is happening. It’s a way to gather information. In a large network, it means observing and recording data from a wide variety of devices and applications. We should clarify that monitoring and management are not the same […]
What is SPF? Sender Policy Framework (SPF) is a protocol designed to help combat forged email. It allows the owner of a domain to specify which hosts are authorized to send email from that domain. Full details can be found in RFC 7208. How does SPF work? Domain owners publish SPF records in the Domain […]
JavaScript is a dandy programming language. And it’s very popular. A report from W3Techs shows that 94.7% of all websites surveyed used JavaScript. But it’s also vulnerable to a top web application hack called cross-site scripting (XSS). Unlike SQL injection, which targets the server side, XSS goes directly for unsuspecting web users. XSS injects malicious […]
Controlling traffic is a key facet of internet management. Sometimes primary connections will go down. Or too much traffic may cause congested links or overwhelmed devices to become unusable. We wrote about the implementation of load balancing in the cloud in a 2017 blog post. When people think of load balancing, they usually think about traffic that […]
Looking for a handy online DNS Tool, try ours here! Troubleshooting never ends. Problems in network computing can happen at many different levels. One technology that every internet user depends on is DNS, which stands for domain name system. A domain name is an alphanumeric designation for an IP address. DNS servers are the databases […]
Not interested in reading the manual? We cover the essentials in a video at the bottom of this page! The Import / Export tab within Cloud DNS allows you to easily bulk-add new domains to the platform, as well as export domains (currently one-by-one) in a traditional text file format for easy backup or for […]
Total Uptime’s Cloud DNS Service supports 27 different DNS resource record types. That includes 26 standard record types and 1 special web-redirect type that we’ve created. Below is a comprehensive list of each record type which you can find in the Cloud DNS management interface. DNS SOA Record This is the “Start of Authority” resource […]