Dipak Documentation

sudo lshw

-- List users and their attributes (superuser, create database)
SELECT usename AS role_name,
  CASE
     WHEN usesuper AND usecreatedb THEN
	   CAST('superuser, create database' AS pg_catalog.text)
     WHEN usesuper THEN
	    CAST('superuser' AS pg_catalog.text)
     WHEN usecreatedb THEN
	    CAST('create database' AS pg_catalog.text)
     ELSE
	    CAST('' AS pg_catalog.text)
  END role_attributes
FROM pg_catalog.pg_user
ORDER BY role_name desc;

-- Check active connections to the PostgreSQL server
select pid as process_id,
       usename as username,
       datname as database_name,
       client_addr as client_address,
       application_name,
       backend_start,
       state,
       state_change
from pg_stat_activity;

# 1. Build the binary on a development machine
git clone https://github.com/cloudflare/cloudflared.git
cd cloudflared
GOOS=linux GOARCH=mips64 go build github.com/cloudflare/cloudflared/cmd/cloudflared

# 2. Transfer to router
scp cloudflared [router_username]@[router_ip]:/tmp/

# 3. Install on router via SSH
ssh [router_username]@[router_ip]
cd /tmp
sudo chown root:root cloudflared
sudo chmod +x cloudflared
sudo mv cloudflared /usr/bin/

# 4. Configure and Start
sudo mkdir /etc/cloudflared
sudo vi /etc/cloudflared/config.yml
# Add to config.yml:
# proxy-dns: true
# proxy-dns-upstream:
#   - https://1.1.1.1/dns-query
#   - https://1.0.0.1/dns-query
# proxy-dns-port: 8853

sudo /usr/bin/cloudflared service install [token-from-cloudflare]

# 1. Scale the Portainer service to zero
docker service scale portainer_portainer=0

# 2. Run the reset helper using the service's data volume
docker run --rm -v portainer_portainer_data:/data portainer/helper-reset-password

# 3. Scale the service back to 1
docker service scale portainer_portainer=1

sudo apt update
sudo apt install -y parted e2fsprogs dosfstools

#!/bin/bash
# Usage: ./extended-cleanup-rancher2.sh [flush]

# Remove all docker resources
docker rm -f $(docker ps -qa)
docker rmi -f $(docker images -q)
docker volume rm $(docker volume ls -q)

# Unmount kubelet and rancher paths
for mount in $(mount | grep '/var/lib/kubelet' | awk '{ print $3 }') /var/lib/kubelet /var/lib/rancher; do 
  umount $mount
done

# Remove system directories
cleanupdirs="/etc/ceph /etc/cni /etc/kubernetes /opt/cni /opt/rke /run/secrets/kubernetes.io /run/calico /run/flannel /var/lib/calico /var/lib/etcd /var/lib/cni /var/lib/kubelet /var/lib/rancher/rke/log /var/log/containers /var/log/pods /var/run/calico"
for dir in $cleanupdirs; do
  rm -rf $dir
done

# Delete network interfaces
cleanupinterfaces="flannel.1 cni0 tunl0"
for interface in $cleanupinterfaces; do
  ip link delete $interface
done

# Optional: Flush iptables
if [ "$1" = "flush" ]; then
  iptables -F -t nat
  iptables -X -t nat
  iptables -F -t mangle
  iptables -X -t mangle
  iptables -F
  iptables -X
  service docker restart
fi

# Install the package
apt -y install qemu-guest-agent

# Enable the service to start on boot
systemctl enable qemu-guest-agent

# Start the service immediately
systemctl start qemu-guest-agent

# Verify the service is running
systemctl status qemu-guest-agent

# 1. Enter privileged mode
enable

# 2. Enter global configuration mode
configure terminal

# 3. Create a standard access list
ip access-list standard my-access-list

# 4. Add entries (Permit/Deny)
permit host 192.168.1.10
deny host 192.168.1.20
# Deny a range using wildcard mask (e.g., 10.10.10.1/29)
deny 10.10.10.1 0.0.0.7

# 5. Apply to an interface (e.g., GigabitEthernet 0/1)
interface GigabitEthernet 0/1
ip access-group my-access-list in
exit

# 6. Save changes
exit
write memory
# OR
copy running-config startup-config

openssl rsa -in key.pem -out id_rsa

sudo groupadd docker
sudo usermod -aG docker $USER