Roman McDougal
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Articles
Recent activity by Roman McDougal-
What is Exim?
Question What is Exim? Answer Exim is a message transfer agent (MTA) used by cPanel servers to relay (receive/send) emails. Detailed information about Exim can be found on their official site. ...
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"API failure: Failed to read data: Is a directory" error
Symptoms The "WHM >> Accounts Functions >> Change Site's IP Address" fails to change the IP address for a specific account with the following errors: API failure: Failed to read data: Is a direct...
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How to block email with specific file extensions in attachments
Introduction cPanel allows you to create custom Exim filters that block specific file extensions. This article provides the procedure for doing so. Please note that cPanel does not support customiz...
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ImunifyAV interface not visible for cPanel end users.
Symptoms ImunifyAV is installed and working correctly in WHM, but the "ImunifyAV" interface is not present in users' cPanel interfaces. Description By default, the "ImunifyAV plugin" option isn't...
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Unable to delete addon domain: The domain userdata file appears to be missing
Symptoms When trying to delete an addon domain, the following error is presented: Error: The domain userdata file for the domain.tld appears to be missing. Description cPanel stores information ...
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Authoritative VS Non-Authoritative DNS Servers
Question What is the difference between Authoritative and Non-Authoritative DNS Servers? Answer To answer this question, we need to describe the following types of DNS services: Authorita...
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Why do I see the error "bad owner name (check-names)" when loading a DNS zone (BIND)?
Question Why do I see the error "bad owner name (check-names)" when loading a DNS zone (BIND)? general: error: /var/named/example.com.db:65: example_record.example.com: bad owner name (check-na...
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Can database replication be configured as a cPanel user?
Question Can database replication be configured as a cPanel user or WHM via PHPMyAdmin? Answer Replication requires extensive configurations, not only on the database side but on the routing side...
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High load averages and MySQL's query cache
Symptoms MySQL is heavily using CPU time, and load averages are increasing due to MySQL's usage. Description Please note, the query_cache option was deprecated in version 5.7 and removed in 8.0, ...
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How to increase or decrease swap
Question How can I increase or decrease the swap on my server? Answer The swap size can be changed without rebooting the server using the create-swap script. Turn off the swap space. swapoff -a ...