• nginx how to see the real IP when behind a CDN


    If you run nginx behind a CDN, you will by default see the proxy/CDNIPinstead of the real client. Edit the global http { part of nginx.conf and add this: # 1. Specify the IP address of your trusted proxy/load balancer set_real_ip_from 1.2.3.4; set_real_ip_from 5.2.3.4; # 2. Specify which header contains the real client IP real_ip_header X-Forwarded-For;........
  • How To Deploy Your Own Mastodon Server in Docker


    This is based off the LinuxServer Mastodon Image and Ibelieve this simplifies the bare basics of get things going because Mastodon is fairly complex but well worth the effort. WhyMastodon? For me, it's about having social freedom, when you use big tech there are MANYnegative things that happen. 1.) They tap and mine all of your data for profit. 2.) You have 0 privacy and 0 benefits (no possible profi........
  • LSI MegaRAID in Linux Ubuntu / Centos Tutorial Setup Guide megacli


    Usually when I come across a system like this, Ijust flash the firmware to an IT mode so we get just an AHCI system with JBOD, but sometimes it is not practical for remote systems or if we fear that flashing is too risky if something goes wrong. In this case, we unfortunately have to use LSI/Broadcom proprietary CLI tools (megacli) to even make the drives visible. Step 1 - Download MegaCLI The official broadcom packages lack .deb packages and only have .rpm for........
  • How To Tell Which Repository a Package Comes From Debian Mint Ubuntu


    Just use apt-cache policy to find the repo of a package: apt-cache policy lxd lxd: Installed: 3.0.3-0ubuntu1~18.04.2 Candidate: 3.0.3-0ubuntu1~18.04.2 Version table: *** 3.0.3-0ubuntu1~18.04.2 500 500 http://archive.ubuntu.com/ubuntu bionic-updates/main amd64 Packages &nb........
  • Docker Tutorial HowTo Install Docker, Use and Create Docker Container Images Clustering Swarm Mode Monitoring Service Hosting Provider


    The Best Docker Tutorial for Beginners We quickly explain the basic Docker concepts and show you how to do the most common tasks from starting your first container, to making custom images, a Docker Swarm Cluster Tutorial, docker compose and Docker buildfiles.........
  • Debian Ubuntu and Linux Mint Broken Kernel After Date - New Extra Module Naming Convention


    I don't consider a lot of these "extra" kernel modules "nice to have" as they often contain drivers for essential items like your soundcard, your NIC and many other devices that may not work. Sometimes you may find that "sound" or "ethernet" worked before a kernel/OS upgrade and now in the new version they don't. Often it will be because you need to install the "extra" kernel modules. One other weird thing is that sometimes........
  • Cisco Unified Communications Manager 12 Install Errors on Proxmox/KVM


    The strange thing is that usually the first install or two will work on any new machine but then it suddenly won't. I had this experience on QEMU 2.13 on a different machine. There is something finicky or buggy about the CUCM installer even when choosing the same virtual hardware specs. qemu-kvm command: /usr/libexec/qemu-kvm -version QEMU PC emulator version 0.12.1 (qemu-kvm-0.12.1.2-2.506.el6_10.1), Copyright (c) 2003-2008 Fabrice Bellard ........
  • VMWare Vsphere VCSA Graphical Install Creates json


    yes it does create its own json ============================================ cat /tmp/vcsaUiInstaller/ovftool-20180809-175238948-20180809-175603497.log |grep -i json 2018-08-09T17:56:04.238-07:00 verbose OVFTool[30966] [Originator@6876 sub=Default] Manifest file entry: SHA1(VMware-vCenter-Server-Appliance-6.7.0.12000-8832884_OVF10-file1.json) = 1deb658c724767697587d5909c4051c01813e6a1 --> ........
  • Linux how to use find recursively to find certain types of files/extensions


    Normally if you're in a certain directory you could do: find *.txt and it will work as expected, but it won't work recursively through child directories, here's the correct way to do it: find . -type f -name *.txt The "-type f" is optional because that means only files, but we could have specified d for directory etc... The above command will work recursively as you'd expect. In that way I find "find" to be un........
  • Create/Enable SSL Certificates for Apache on Linux/Unix Systems eg. Redhat,Centos,Debian


    Shortcut/Easiest Way To Create A Self-Signed Key: openssl req -new -x509 -nodes -days 1530 -out server.crt -keyout server.key Using the above, you instantly create a self-signed certificate valid for 1530 days and you can simply skip to step #5.) below. If You Need a Real SSLCertificate (eg. Equifax/Openssl) then you need to create a CSR request (you'll need to follow Steps 1.) and 2.) in order to create the CSR. You then upload the CSR Certi........
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