About MOTD

# 1.   Find out domain owner information (whois) or IP-address owner at shell prompt:
whois nixcraft.com
whois 202.54.10.20

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# 2.   A hacker does for love what what others would not do for money.
Source: /usr/bin/games Permlink
 
# 3.   Find out top 10 directories eating up your disk space:
du -cks * | sort -rn | head -10
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# 4.   Start the HP-UX system administrator manager:
sam
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# 5.   What the role of the system administrator?
The system administrator is responsible for setting up and maintaining the system (both hardware and software). He/she must understand the needs of the user(s). Every system administrator must know all admin tools/commands, vendor support contracts, shell scripts and support line (phone/email/IM).
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# 6.   Customize user accounts with ~/.bash_profile or ~/.profile
vi ~/.bash_profile
export EDITOR=vim
export PATH=$PATH:/usr/java/bin
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# 7.   Why to have separate filesystems?
* Ease of use
* Easy backup and recovery
* Disk quotas
* Flexibility
* See the importance of Linux partitions
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# 8.   Find out more about Linux/UNIX commands:
whereis <command-name>
whatis <command-name>
which <command-name>
man <command-name>
See Linux/UNIX commands to help you navigate
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# 9.   Wanna find out who is logged on and what they are doing? Try
w
who
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# 10.   Wanna find out amount of free and used memory in the system? Try...
free
free -m
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# 11.   Use Linux password again policy for better security.
By default password do not expire, for strong security policy it is recommended that you enable Linux password again option with chage command.
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# 12.   mii-tool allows a Linux sys admin to modify/change and view the negotiated speed of network interface card (NIC) i.e. it is useful for forcing specific Ethernet speed and duplex settings:
mii-tool -F 100baseTx-HD
mii-tool -F 10baseT-HD
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# 13.   Health is the greatest gift, contentment the greatest wealth, faithfulness the best relationship. Exercise everyday :)
Source: Gautma Buddha Permlink
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