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Think Yourself a System Administrator?

Do you think yourself a system administrator? Yes? Ok; try giving answers of following

  • How many files are installed on a freshly installed Windows 2003 or Fedora 4 (or an OS of your choice)?
  • What’s the ACL of C:\Windows or /bin (or other similar location in other OS)?
  • How many files are updated/deleted/added when SP1 (or some other popular patch) is installed?
  • How many services (or daemon) are running on a freshly installed Windows / Fedora 4? Name them and what do they do?
  • How many TCP and UDP ports are opened on a freshly installed Windows / Fedora 4? Which processes are bound to them and what are their implications?

Thinking that what kind of ridiculous questions these are? Yes? Ok; try asking any medial doctor these questions

  • How many bones exist in a human body? What each and every one of it does?
  • How many organs exist in human body?
  • How many glands exist in some particular place?
  • How many arteries / veins exist in some particular place?

I hope they will answer quite satisfactory…I guess this is the reason why medical field is more organized and less prone to mishaps!

Today I calculated how many files exists on a freshly installed Windows 2003 and what are their default NTFS ACLs settings are. And I am kinda surprised that its pretty useful information and every sys-admin should know this. In case you are curious; there are about 600+ ACL entries in different files/folders on a freshly installed Windows 2003.

Anyways; happy system administration…

Sometimes I love it...but rest of the time I hate it <smile />

Published Friday, February 17, 2006 4:33 PM by khurram

Comments

# re: Think Yourself a System Administrator?

Saturday, February 18, 2006 1:58 PM by Masood Ahmad Shah
Ans...
1: C:\> dir /s Unix# dir /R
2: Well; To display all ACLs on all files on the c: drive, use
C:\> lsacl -r c:/
Unix# ls –l /bin
3:Well; for this one should read README file the one comes with every patch and SP as well.
4: Windows Services can be listed:
http://www.sysinternals.com/Utilities/ProcessExplorer.html
netstat –an
Unix# ps auwx
Unix# netstat –an
5: C:\> netstat –a
Unix# netstat -an | grep LISTEN
Unix# sockstat –l

What;s next :)

# re: Think Yourself a System Administrator?

Sunday, February 19, 2006 10:39 PM by Khurram
>net start, will list all the running services; no need of any third party tool for that :)

Yes; if the system is available; one can know these all; similar to the case; when a patient is on the table; you can count any thing if you have made an incision...
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