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Helpful Commands

Linux Disable Interface with Netplan (or not)

So, based on everything I’ve found, you can’t. In my opinion this is a shortcoming of using netplan versus the old way of simply using ifupand ifdown. This is in many ways super frustrating as it’s like the developers took the stance of “why on would anyone ever want to Read more…

By Torry Crass, 2 years2 years ago
Technical

Updating VMware ESXi Certificate

This activity is far from straight forward. There’s lots of information about how to do this through vCenter but the information becomes very unclear when it comes to the free version of VMware ESXi. First, there is an import option from the web interface under “Manage” and “Security & Users”. Read more…

By Torry Crass, 3 years3 years ago
Scripting

Linux Script Error: Bad Substitution (change shell from dash to bash)

This is a simple problem in the end that cost me serious troubleshooting time. Hopefully you found this article and it can save you some of what I lost. You may encounter a problem when running a script on the Linux CLI that results in error: bad substitution and a Read more…

By Torry Crass, 3 years3 years ago
Helpful Commands

PHP Composer Disable HTTPS by CLI

Every now and then it can be necessary to disable certain security features temporarily in order to achieve a goal. In my case, it was for the use of a web script that didn’t use HTTPS for composer that I did not have the time to update. Composer allows you Read more…

By Torry Crass, 3 years3 years ago
Helpful Commands

Forward Connection to Docker in Linux

Every now and then it is necessary to set up a connection forwarding from external to inside the system perhaps to a docker instance where the internal IP for the docker is a completely separate subnet from your host system (192.168.*.* vs 172.16.*.* for example) . One possible way to Read more…

By Torry Crass, 4 years4 years ago
Technical

Elasticsearch Object Mapping Import Error

So, you decided you want to try to import logs manually into some version of an ELK stack, or maybe just directly into Elasticsearch. I hope it’s going better for you than it has for me. Though, I guess it’s probably not since you’ve found your way here. When importing Read more…

By Torry Crass, 4 years4 years ago
Helpful Commands

Kali/Ubuntu Remove Old Kernels

UPDATE 20 SEP 2020: As it goes, this remains a problem as autoremove is simply not a well rounded solution for this. Yes, autoremove will remove old kernels, but it also removes other software and libraries that can still be in use. It doesn’t seem to perform all the proper Read more…

By Torry Crass, 4 years3 years ago

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