enable
conf t
show startup-config
show running-config
write mem
copy running-config startup-config
Dangerous:
write erase
erase startup-config
erase nvram:
enable password CCNA
Requires password "CCNA" to go into privileged mode.
Problem: Password stored in clear text in startup-config
service password-encryption
Type "7" encryption.
Problem: Easily crackable
enable secret Cisco
Use this one. Type "5" encryption (MD5).
If configured, device ignores "enable password"
show mac address-table
show mac-address-table
clear mac address-table dynamic
show ip interface brief
Int IP-Addr Status Protocol
G0/0 10.1.2.3 up up
G0/1 unassigned admin down down
G0/2
Router status default = admin down
Switch status default = down (until something is plugged in)
no ip domain-lookup
Disables IOS from resolving incorrect commands as hostname to IP lookup (takes a long time)
logging synchronous
Sync syslog messages to prevent interrupts while I am typing
term len 0
do sh run
Displays running config without pausing after each screenful of info
Maybe on Aruba:
screen-length disable
or
no page
[These are my notes from Jeremy's excellent CCNA course which can be viewed here.]
