Michael Johann malagant

## node_exporter_setup.md

      
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                nwesterhausen
                / node_exporter_setup.md
            
            
              Last active
              November 22, 2025 10:16
            
              
                node_exporter installation on ubuntu
              
          
    Installing node_exporter

Steps to install node_exporter


Add user for node_exporter
sudo useradd --no-create-home --shell /bin/false node_exporter


## clean_docker.sh
# Clean the exited containers
docker rm $(sudo docker ps -a | grep Exit | cut -d ' ' -f 1)

# Clean the untagged images (or old images)
docker rmi $(docker images | tail -n +2 | awk '$1 == "<none>" {print $'3'}')

# On Docker 1.9+ you can remove the orphan volumes with the next command
docker volume rm $(docker volume ls -qf dangling=true)

## tmux-cheatsheet.markdown

      
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              14658 stars
            
          
                MohamedAlaa
                / tmux-cheatsheet.markdown
            
            
              Last active
              December 8, 2025 03:35
            
              
                tmux shortcuts & cheatsheet
              
          
    tmux shortcuts & cheatsheet

start new:
tmux

start new with session name:
tmux new -s myname


## iptables_rules.sh
# Modify this file accordingly for your specific requirement.
# http://www.thegeekstuff.com
# 1. Delete all existing rules
iptables -F

# 2. Set default chain policies
iptables -P INPUT DROP
iptables -P FORWARD DROP
iptables -P OUTPUT DROP
	# Clean the exited containers
	docker rm $(sudo docker ps -a \| grep Exit \| cut -d ' ' -f 1)

	# Clean the untagged images (or old images)
	docker rmi $(docker images \| tail -n +2 \| awk '$1 == "<none>" {print $'3'}')

	# On Docker 1.9+ you can remove the orphan volumes with the next command
	docker volume rm $(docker volume ls -qf dangling=true)
	# Modify this file accordingly for your specific requirement.
	# http://www.thegeekstuff.com
	# 1. Delete all existing rules
	iptables -F

	# 2. Set default chain policies
	iptables -P INPUT DROP
	iptables -P FORWARD DROP
	iptables -P OUTPUT DROP