RHCSA9

Use nmcli Managing networks and managing networks with profiles
ipv6 Address
xxxx:x
0 It can be omitted
example ：2000:0000:0000:0000:0000:0002:0010:0111
Omitted as 2000:0:0:0:0:2:10:111
Omitted as 2000::2:10:111

Special address


Identify the network interface
ip link show
ifconfig
nmcli device s（show）、

trancepath Route tracking

nmcli To configure
nmcli connect show Show connected Ethernet devices
nmcli connect delete name Delete connection
nmcli connect add con-name name Add connections
nmcli connect add con-name name type ethernet ifname enpls0 ip4 x.x.x.x gateway …
nmcli connect modify name …
To be used after modification nmcli connect up name
nmcli connect reload

File archiving and transferring files between systems
tar



tar -cf /xx/xxx.tar file1 file2 file3 Archive file command
tar -tf xxx.tar Look at the archive

scp Copy files between systems
scp Source The goal is , How to write it ：/path ; [email protected]:/path