When setting up https on an existing server, you need to provide a redirect for all those visitors arriving via http backlinks. Here is how to do this.
Correcting SELinux security contexts: how to adjust SELinux labels on your file system
In an administrator’s quest to get stuff done, SELinux tends to get in the way. It is being perceived as a nuisance rather than a feature and this happens mostly for only one reason: setting correct SELinux labels requires the ability to figure out the appropriate SELinux security contexts. Here is how to do it.
A quick guide to DNS configuration using AWS Route 53 (and how to configure DNS using any other DNS service)
The most difficult thing about configuring the DNS settings for a domain is designing a plan of action: making up one’s mind about what kind of services you envision and how you want to route the traffic. Here’s a primer on how to configure DNS using Route 53 or any other service.
How to use rsync to transfer files and directories between hosts
The rsync utility can backup files, synchronize directory trees, and much much more, both on the local machine and between two different hosts—via push and pull. Here is how to tame it.
How to upgrade the Linux kernel in Fedora 28/29 quickly and easily
As zero-day exploits become increasingly common, keeping the kernel up to date is a top priority.
In CentOS 6.x/7.x and RHEL 6x./7.x, upgrading the Linux Kernel is a painful procedure which requires about a dozen steps. On Fedora, all it takes is a time-saving two-liner. You don’t need to concern yourself with the configuration of the grub boot manager, which is a frequent source of trouble on CentOS and RHEL.
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