Difference between revisions of "Basic"

Revision as of 13:28, 28 September 2018

apt-get

• Update the Package Index
  • sudo apt-get update
• Upgrade Packages
  • sudo apt upgrade
• Install a Package
  • sudo apt-get install net-tools
  • sudo apt-get install vim
• Remove a Package
  • sudo apt-get remove net-tools
• Source list
  • sudo vim /etc/apt/sources.list

Network

• List network adaptors
  • ip a

• sudo vim /etc/netplan/01-network-manager-all.yaml

network:

version: 2

renderer: NetworkManager

ethernets:

ens33:

addresses: [192.168.200.55/24]

gateway4: 192.168.200.1

• sudo netplan apply
• /etc/resolv.conf
  • name server 114.114.114
  • search corp.alphabook.cn

• Command 'ifconfig' not found, but can be installed with:
  • sudo apt install net-tools

SSH

• sudo apt-get install openssh-server
• sudo vim /etc/ssh/sshd_config
• sudo service ssh restart

Service

• sudo systemctl status ssh
• sudo systemctl start ssh
• sudo systemctl stop ssh
• sudo systemctl restart ssh
• sudo systemctl reload ssh
• sudo systemctl enable ssh
• sudo systemctl disable ssh
• sudo systemctl is-enabled ssh
• sudo systemctl is-active ssh
• sudo systemctl show ssh

Process

• top
• ps -aux | grep programname | grep -v grep
• kill -9 pidnumber

Firewall

User and Group

Error: Could not get lock /var/lib/dpkg/lock – open (11: Resource temporarily unavailable)

• sudo rm /var/lib/apt/lists/lock
• sudo rm /var/cache/apt/archives/lock
• sudo rm /var/lib/dpkg/lock
• sudo dpkg --configure -a