Disk space may be cheep but off-site backups are often slow so daily full-backups aren’t always the best option. Tar supports the highly efficient “incremental” backup scheme and it’s simple to use. Take a look at the example below: tar -czf backup-day-$(date +%w).tar.gz –listed-incremental=/root/tar.snapshot /etc The first time you run
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This article demonstrates how to find viruses on your Linux workstation or server, move the virus to a special directory and notify you if a virus was found. In addition, (as an example only) we don’t want to scan the “/var/lib/mysql” directory because that’s where our databases are so we’ll
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This article demonstrates how to restrict SSH access to only specified users and/or groups. You can do the reverse by allowing all but a few users to SSH into the server but we’ll focus on allowing only those we specify. Open the file “/etc/ssh/sshd_config” and look for (or create if
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This is a quick one-liner to remind you how to mount an NFS share on a MACOS client. sudo mount -t nfs -o resvport 172.20.10.2:/share/this /mnt/nfs A few points to remember: You need to do this as root (or SUDO). You need to include the “-o resvport” option. Obviously make
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This article lists some situations you might find yourself in with Gluster and what you can expect. Basically I’ve tried to break, push and put Gluster into impossible situations to see what happens so you don’t have to. Just read this article and you’ll save yourself the pain. I will
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If you’re a Windows system administrator with a need to log into a Linux server and troubleshoot it, this article is for you. Log into Linux Logging into a Linux server can be done via any of the following: Login with to a remote Linux server using SSH. Login at
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Like happens so often, the notes and comments you found in forums don’t quiet work how you expected. In this article i demonstrate how to enable CORS on NginX and show you how to test it. You’ll see a working example. There are reasons you can’t do this without modifications
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Ansible is a buzz word at the moment. Ever since Redhat purchased Ansible back in 2016, it has been rare to hear about anyone deploying alternative automation systems. Recently Ansible has been commercialized into Ansible Tower allowing a wider audience to take advantage of the benefits of automation. I recently
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Just like with VMWare or Hyper-V, Amazon’s AWS supports snapshots and they make it easy to create them and restore from them. But in true AWS style, they don’t make it obvious how it works. I’m hoping to change that in this article. I’ve used the word “snapshot” but strictly
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Zabbix is a great monitoring system but only when you actually get alerted to issues. There is no “Test” button so you have to trigger an event. The good news is (despite what you’ve read in other posts) there is an easy and consistent way to test alerts. The idea
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