Axel Cervera
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Articles
Recent activity by Axel Cervera-
How to whitelist incoming "Sender Verify" checks
Introduction Sender verification checks are performed on your server for incoming email and these checks help prevent unverified/spam email from arriving at your server. However, sometimes there ma...
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Managing packages via EasyApache 4 (EA4)
Introduction The EasyApache4 interface via the WHM allows you as a server administrator, to manage the YUM packages that cPanel provides via the EA4 repository. These packages are often Apache modu...
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How to modify Ulimit values
Introduction Ulimit values control certain characteristics about what resources processes have access to. These values can be set globally or per user. The modification of operating system configur...
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How to fix "perl: warning: Setting locale failed"
Introduction If you execute a Perl script, call the Perl binary or see this error when you log into your server via SSH, then you may attempt to resolve it by performing the following steps. The mo...
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How to enable quotas
Introduction As of cPanel & WHM version 76, we enable quotas by default during new installations. However, here are the steps needed if you need to enable quotas on a device. Procedure Run the sc...
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Understanding the Apache scoreboard
Question How can I read the Apache scoreboard to understand what is going on? Answer Invoking the Apache scoreboard is simple simply by running the following command: apachectl status The server'...
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How to adjust package Inode limits via CloudLinux's LVE
Introduction CloudLinux's LVE Manager allows you to impose inode limits to your accounts and adjust these per package or account. This article will provide the steps that you may perform via the WH...
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DNS resolvers & Slow DNS lookups
Question Can my resolvers cause slow DNS lookup queries? Answer Absolutely! Your server's resolvers are the set of nameservers to which your system will perform DNS queries to resolve IPv4 & IPv6...
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Nameserver Selection reports: "PowerDNS is not available for your system"
Question Why does the WHM interface for the Nameserver selection report the nameserver as not available for selection? Answer If your resolver configuration references a local IP address that is ...
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Are 3rd-party systems compatible with DNS Clusters?
Question Can I use 3rd-party or non-cPanel servers in a cPanel DNS Cluster? Answer DNSAdmin is the core of what helps manage DNS services in cPanel and what allows for DNS Clustering to function ...