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CentOS Linux Suse Troubleshooting Ubuntu

Command not found!

Reading Time: 2 minutes So you’re running through some instructions to configure software on your system, or troubleshoot some problem with a service and you see an error at the command line that says “command not found”. Here is how to locate the packages you need to install in order to use commands that are not available on your […]

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Linux Ubuntu

Uncomplicated Firewall… be careful

Reading Time: < 1 minute If like me, you enjoy the simplicity of UFW (Uncomplicated Firewall) on your Ubuntu servers be careful when you turn it on. UFW doesn’t have any default rules to allow ssh inbound by default, if you aren’t careful when turning it on you could find yourself locked out, and if you don’t have direct console […]

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Linux Ubuntu

Find services that require a restart

Reading Time: 2 minutes Ubuntu offers a live patching utility that allows kernel patches to be installed without requiring a system restart to be applied. Read more about online patching in this post about patching. That said, in many cases other services or processes on your system may need to be restarted after an upgrade.