一、误删用户家目录后如何重建
ll /etc/crontab
crontab -e
crontab -l
crontab -u wencoll -l
crontab -u wencoll -e
cd /etc/skel
cp -r /etc/skel/ home
chown -R wencoll /home/wencoll/
chgrp -R wencoll /home/wencoll/
二、手动配置IP地址
service Network stop
/etc/init.d/NetworkManager stop
chkconfig --level 345 NetworkManager off
ip addr
ipp addr help
ip addr add 192.168.86.100/24 dev eth0
ip link set eth0 up
ping 192.16.86.19
ip route
ip route add default via 192.168.86.1 dev eth0
vim /etc/resolv.conf
nameserver 114.114.114.114
ping -c4 192.168.86.1
ping -c4 -i0.2 192.168.86.1
ping -c4 -s 60000 192.168.86.1
nslookup www.qq.com
nslookup www.qq.com 202.106.0.20
三、通过网卡的配置文件
ip addr del 172.16.1.254 dev eth0
ip route
ifconfig
netstat -antpul
ss -antpul
cd /etc/sysconfig/network-scripts/
mv ifcfg-eth0 ifcfg-eth0.bak
vim /etc/sysconfig/network-scripts/ifcfg-eth0
DEVICE=eth0
TYPE=Ethernet
ONBOOT=yes
BOOTPROTO=dhcp
/etc/init.d/network restart
ip addr show eth0
ip route
cat /etc/resolv.conf
vim /etc/sysconfig/network-scripts/ifcfg-eth0
DEVICE=eth0
TYPE=Ethernet
ONBOOT=yes
BOOTPROTO=none或static
IPADDR=192.168.86.110
NETMASK=255.255.255.0
GATEWAY=192.168.1.1
DNS1=202.106.0.20
DNS2=114.114.114.114
/etc/init.d/network restart