Technical guides and operational notes filed under CloudLinux.
Technical guides and operational notes filed under CloudLinux.
On centos 7, there are instances where you get the error Unable to register authentication agent: GDBus.Error:org.freedesktop.PolicyKit1.Error.Failed: Cannot determine user of subject Error registering authentication…
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Because of Bug in the CPanel release lots of our client are facing issue that MySQL is showing down in cPanel interface. But the MySQL/MariaDB was still running. It’s only the cPanel interface that was showing the…
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Open LiteSpeed is an open source web server which comes with a lot of interesting features that helps us to manage our sites effectively. Some of the features include 1) Page Caching – which improves the loading time of…
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Bad Magic Number In Superblock The Server will go down due to issues in disks attached. Sometimes fsck in disks ends up in an error “Bad magic number in Superblock while trying to open /dev/sdb”. What do you mean by…
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Mozilla announced their ‘mozjpeg’ project with the aim of improving lossless jpeg compression and making the web a faster place. Forked from libjpeg-turbo, mozjpeg is more concerned with reducing filesize than doing it…
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RAID Levels RAID 0 Stripes data evenly across two or more disks. RAID 1 Mirrors data on two or more disks. RAID 2 Rarely used, Bit-level striping with Hamming code for error correction. RAID 3 Rarely used, byte-level…
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Mdadm is the modern tool most Linux distributions use these days to manage software RAID arrays; in the past raidtools was the tool we have used for this. This cheat sheet will show the most common usages of mdadm to…
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This method allows you to filter selected domains via our Outgoing filter, while using IP authentication. Any domains not configured here will continue to use the standard cPanel router and transport. Ensure the IP…
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Using dnf you can search for available wireless drivers in the RHEL 8 / CentOS 8 repositories. The built-in way If your wireless card has not been detected automatically by the RHEL 8 / CentOS 8 kernel you can search…
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First Check the NIC driver version installed on the server. [root@test]# /sbin/lspci | grep Ethernet 0b:00.0 Ethernet controller: Intel Corporation 82574L Gigabit Network Connection 15:00.0 Ethernet controller: Intel…
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