Jefferson Sherlin
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Articles
Recent activity by Jefferson Sherlin-
How to disable the ConfigServer Exploit Scanner (CXS) ModSecurity rules
Introduction CXS restricts where files are uploaded, which prevents you from defining a custom upload path. This article provides the procedure to disable CXS's upload scanning. Procedure Log in...
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How to edit a server's resolver configuration
QuestionHow do you edit the server's resolver configuration from the command line?Answer Using WHM Access WHM as the root user Navigate to Home / Networking Setup / Resolver Configuration. Click P...
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Out of memory error after clicking the "Run npm install" button in CloidLinux
Symptoms After clicking the "Run NPM Install" button in "Setup Node.js App," you receive the following error. Out of memory error may be caused by hitting LVE limitsor "Max data size", "Max address...
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How to deny access to WHM via Host Access Control on a RHEL-based server
Introduction This guide provides a basic example for blocking access to WHM for all IP addresses except the specific IPs that you allow from the "Host Access Control" interface in WHM. Before makin...
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How to determine the SSL certificate issuer from cPanel
Introduction You may want to verify the issuer of an SSL certificate installed on your server. This can be checked in WHM or cPanel. This article provides the procedure to check the issuer from cPa...
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A DNS entry for “subdomain.domain.tld" already exists.
SymptomsWhen adding an addon domain or subdomain in your cPanel, you get an error similar to the following:CONFIG_TEXT: There is already a DNS entry for the domain “subdomain.domain.tld”. at /usr/l...
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DNS Entry Already Exists error: no DNS zone file for the domain
Symptoms When attempting to add a new domain or rebuild the DNS configuration, you receive an error similar to the following. (XID vqskjs) A DNS entry for “domain.tld” already exists. You must remo...
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PowerDNS allows users to place CNAME records in the zone apex
SymptomsOn a cPanel server running PowerDNS, a user may replace the domain's apex A record with a CNAME record or convert the A record to a CNAME record.; cPanel first:102.0.18 (update_time):172838...
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How to install Python Selector for use with cPanel on a CloudLinux server from WHM
Introduction This article provides the steps to install CloudLinux's Python Selector from WHM. Please note that a CloudLinux license is required to use Python Selector. Procedure Log into WHM as...
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Error rebuilding httpd configuration: undefined symbol: ap_set_content_type_ex
SymptomsApache will not start and an error similar to the following can be seen when attempting to rebuild the Apache configuration.# The “/usr/sbin/httpd -DSSL -t -f /etc/apache2/conf/httpd.conf.w...