Difference between revisions of "Basic"

Revision as of 13:51, 4 December 2018

Partition

• /boot
• /
• swap

Hostname

• hostnamectl
• hostnamectl set-hostname Linux001

Network

• vi /etc/sysconfig/network-scripts/ifcfg-ens32
• BOOTPROTO=static
• ONBOOT=yes
• IPADDR=192.168.200.10
• NETMASK=255.255.255.0
• GATEWAY=192.168.200.1
• systemctl restart network
• vi /etc/resolv.conf
• search corp.alphabook.cn
• nameserver 114.114.114.114
• CentOS 7 NetworkManager Keeps Overwriting /etc/resolv.conf
  • Check DNS related configuration in /etc/sysconfig/network-scripts/ifcfg-ens32

Time

• timedatectl
• timedatectl list-timezones | grep Asia
• timedatectl set-timezones Asia/Shanghai
• cat /etc/chrony.conf
• Or ntp
• systemctl stop chronyd.service
• systemctl disable chronyd.service
• yum install ntp
• systemctl start ntpd.service
• systemctl enable ntpd.service

Service

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

Firewall

• systemctl status firewalld
• firewall-cmd --get-default-zone
• firewall-cmd --set-default-zone=internal
• firewall-cmd --list-service
  • ssh dhcpv6-client http https ftp samba samba-client smtp tftp tftp-client dns
• firewall-cmd --permanent --add-service=http
• firewall-cmd --reload
• firewall-cmd --list-all

SELinux

• sestatus
• getenforce
• setenforce
• vi /etc/selinux/config

Mount

• mount /dev/cdrom /media
• mount -o loop xxx.iso /media

Permission

• r=read=4 w=write=2 x=execute=1
• u=user g=group o=other
• chmod 755 file01
• chmod go+x file01
• chown User01.Group01 file01
• chgrp Group01 file01

Advanced

• Advanced

Basic Ubuntu

• Basic-Ubuntu