derjohn

use rocketchat

# Change E-Mail Adress 
db.getCollection('users').updateOne(
   { username: "Temp" },
   {
     $set: { emails: [ { "address" : "[email protected]", "verified" : true } ] }
   }
)

derjohn

#!/bin/bash
# usage: ./gpu-tune.sh '1 3 5' # runs GPU Settings in card 1,3 and 5
# Settings must be coded into the script (no external config yet).
# But this still handy, if you work on just one card

GPUS=${1:-'1 2 3 4 5'}
ROCMDIR=./ROC-smi-rocm-3.9.0

function tune() {
DEV=$1

derjohn

#!/bin/bash
set -o errexit

clear
printf "\n*** This script will download a cloud image and create a Proxmox VM template from it. ***\n\n"

### HOW TO USE
### Pre-req:
### - run on a Proxmox 6 server
### - a dhcp server should be active on vmbr1

derjohn

 #!/bin/sh
 
 sudo apt-get -y remove docker docker-engine docker.io runc
 
 sudo apt-get update
 
 sudo apt-get -y install \
    apt-transport-https \
    ca-certificates \
    curl \

derjohn

Huawei Matebook BIOS update with Linux

Tested with Huawei Matebook X Pro (MACH-WX9) This is more or less a step by step tutorial, written 02/2021. Sadly at the moment Huawei does not ship a package in Linux Vendor Firmware Service.

WARNING

Please note that you can damage ("brick") your device if something goes wrong or is done incorrectly. This is for the advanced user! I can only say that I flashed the new firmware 0.1.33 to my MACH-WX9 successfully.

Original docs

dennemann.blog THX!!!

derjohn

Howto manage a tomcat8/9 instance as a user (non-root)

Install tomcat8/9

Figure out yourself, probably use your distros package manager Create a user e.g. tomcat9user

Create an Instance

sudo -iu tomcat9user
tomcat9-instance-create -p 8081 -c 8006 ~/tomcat9specialservice-instance

derjohn

# Goal: Send an PDF Attachment to an catchall E-Mail Adresss with the fax number LHS
# like [email protected] and have it processes as a Fax message.
# You need: an dus.net account and the crypto token for the subject-line-auth
# an catchall e-mail account like *@myfax.example.com with an own homedirectory
# This script will rewrite the e-mail target and subject and forward it to DUS.net.

1) Create a <USERHOME>/.procmailrc
LOGFILE=procmail-for-fax.log
VERBOSE=YES

derjohn

#!/bin/bash
# It creates a systemd "slice" with a memory limit. Ideal if e.g. firefox or chromium eat up all your memory and block your whole desktop.
# The slice will be OOM killed by systemd / cgroups, if it runs of bounds.
# usage: ./create-memorylimited-slice /path/to/your/binary

SLICEPATH=${1:-'/usr/bin/firefox'}
SLICENAME=$(basename ${SLICEPATH})

## Create system-wide scripts
cat <<EOF | sudo tee /usr/local/bin/${SLICENAME}-slice > /dev/null

derjohn

#!/bin/sh
# Example usage RDPHOST=127.0.0.1 RDPPASS=foobar RDPUSER=admin rdp-connect.sh

if ! xfreerdp --version | grep -q 'version 2\.'; then echo "Please apt install freerdp2-x11"; exit 1; fi

RDPHOST=${1:-""}
RDPPASS=${RDPPASS:-""}
RDPUSER=${RDPUSER:-""}
RDPTITLE=${RDPTITLE:-"${RDPHOST}"}
RDPDRIVE=${RDPDRIVE:-'/tmp/'}

derjohn

/etc/docker/daemon.json

{
        "bip" : "172.70.0.1/16",
        "fixed-cidr" : "172.70.16.0/20",
        "log-level" : "info",
        "default-address-pools" : [
                {"base" : "172.80.0.0/16", "size" : 24 },
                {"base" : "172.90.0.0/16", "size" : 24 }
        ]