Merge pull request #998 from linuhap/master

[translating] Ubuntu Is Now Running on World's Fastest Supercomputer
Translated:How to set up a primary DNS server using CentOS.md
Merge pull request #999 from GOLinux/master

Translated:How to set up a primary DNS server using CentOS.md
很好！
Update How to set up a web-based lightweight system monitor on Linux.md
Merge pull request #1000 from GOLinux/master

Translating:How to set up a web-based lightweight system monitor on Linux.md
How to download webcomics from the command line on Linux 

disylee来占坑2014-5-20
Merge pull request #1002 from disylee/patch-1

How to download webcomics from the command line on Linux
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