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DATE 2015-03-01

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Key: id Value: 543029

Key: archive_learn Value: 2015-03-01

MESSAGE
DATE 2015-03-06
FROM Ruben
SUBJECT Subject: [LIU Comp Sci] networking class
From owner-learn-outgoing-at-mrbrklyn.com Fri Mar 6 12:23:29 2015
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Date: Fri, 06 Mar 2015 12:26:16 -0500
From: Ruben
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Subject: [LIU Comp Sci] networking class
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http://www.linuxjournal.com/content/nmap%E2%80%94not-just-evil

I kwon a lot of you guys are taking the networking class so I ran into
this article this morning which might be useful or interesting.
~~~~~~~~~~~~~~~~~~~~~


http://www.linuxjournal.com/content/nmap%E2%80%94not-just-evil

If SSH is the Swiss Army knife of the system administration world, Nmap
is a box of dynamite. It's really easy to misuse dynamite and blow your
foot off, but it's also a very powerful tool that can do jobs that are
impossible without it.

When most people think of Nmap, they think of scanning servers, looking
for open ports to attack. Through the years, however, that same ability
is incredibly useful when you're in charge of the server or computer in
question. Whether you're trying to figure out what kind of server is
using a specific IP address in your network or trying to lock down a new
NAS device, scanning networks is incredibly useful.

Figure 1 shows a network scan of my QNAP NAS. The only thing I use the
unit for is NFS and SMB file sharing, but as you can tell, it has a ton
of ports wide open. Without Nmap, it would be difficult to figure out
what the machine was running.

Figure 1. Network Scan

Another incredibly useful way to use Nmap is to scan a network. You
don't even have to have root access for that, and it's as simple as
specifying the network block you want to scan. For example, typing:


nmap 192.168.1.0/24

  1. 2015-03-01 Ruben <ruben.safir-at-my.liu.edu> Subject: [LIU Comp Sci] Fwd: Re: Linked List Test Question
  2. 2015-03-02 Ruben Safir <mrbrklyn-at-panix.com> Subject: [LIU Comp Sci] [ruben-at-mrbrklyn.com: fork problem]
  3. 2015-03-03 Ruben Safir <mrbrklyn-at-panix.com> Subject: [LIU Comp Sci] Re: fork problem
  4. 2015-03-04 Maneesh Kongara <maneeshkongara-at-gmail.com> Re: [LIU Comp Sci] Mid term in Allorithms
  5. 2015-03-04 Ruben Safir <mrbrklyn-at-panix.com> Re: [LIU Comp Sci] Mid term in Allorithms
  6. 2015-03-04 Maneesh Kongara <maneeshkongara-at-gmail.com> Re: [LIU Comp Sci] Mid term in Allorithms
  7. 2015-03-04 Ruben Safir <mrbrklyn-at-panix.com> Re: [LIU Comp Sci] Mid term in Allorithms
  8. 2015-03-04 Ruben Safir <ruben.safir-at-my.liu.edu> Re: [LIU Comp Sci] Mid term in Allorithms
  9. 2015-03-04 Maneesh Kongara <maneeshkongara-at-gmail.com> Re: [LIU Comp Sci] Mid term in Allorithms
  10. 2015-03-04 Ruben Safir <mrbrklyn-at-panix.com> Subject: [LIU Comp Sci] Kanpsack problemi
  11. 2015-03-04 Ruben Safir <mrbrklyn-at-panix.com> Subject: [LIU Comp Sci] Mid term in Allorithms
  12. 2015-03-05 Kamran <kamran.mirzayev-at-my.liu.edu> Re: [LIU Comp Sci] Canonical's 2015 OpenStack Roadshow
  13. 2015-03-05 mrbrklyn-at-panix.com Subject: [LIU Comp Sci] Canonical's 2015 OpenStack Roadshow
  14. 2015-03-05 Ruben <mrbrklyn-at-panix.com> Subject: [LIU Comp Sci] Forks - Operating systems class
  15. 2015-03-06 Ruben <mrbrklyn-at-panix.com> Subject: [LIU Comp Sci] KDE Mentoring -
  16. 2015-03-06 Ruben <mrbrklyn-at-panix.com> Subject: [LIU Comp Sci] networking class
  17. 2015-03-07 Ruben Safir <mrbrklyn-at-panix.com> Subject: [LIU Comp Sci] Operating Systems class submition
  18. 2015-03-08 From: "keisha.sylvester" <keisha.sylvester-at-my.liu.edu> RE: [LIU Comp Sci] Operating Systems Supplement Text
  19. 2015-03-08 Ruben <ruben.safir-at-my.liu.edu> Re: [LIU Comp Sci] Operating Systems Supplement Text
  20. 2015-03-08 Ruben Safir <mrbrklyn-at-panix.com> Subject: [LIU Comp Sci] Operating systems HW
  21. 2015-03-08 Ruben Safir <mrbrklyn-at-panix.com> Subject: [LIU Comp Sci] Operating Systems Supplement Text
  22. 2015-03-08 Ruben Safir <mrbrklyn-at-panix.com> Subject: [LIU Comp Sci] Re: Operating systems HW
  23. 2015-03-11 Ruben Safir <mrbrklyn-at-panix.com> Re: [LIU Comp Sci] Operating Systems class submition
  24. 2015-03-11 Ruben Safir <mrbrklyn-at-panix.com> Subject: [LIU Comp Sci] February Journal almost completed
  25. 2015-03-16 mrbrklyn-at-panix.com Subject: [LIU Comp Sci] Operating Systems Chapter 3 HW complete
  26. 2015-03-16 mrbrklyn-at-panix.com Subject: [LIU Comp Sci] [ruben-at-mrbrklyn.com: os hw]
  27. 2015-03-17 Ruben Safir <mrbrklyn-at-panix.com> Subject: [LIU Comp Sci] Fwd: NYC local: UNIGROUP 19-MAR-2015 (Thu): Penguin Computing presents
  28. 2015-03-19 Ruben Safir <mrbrklyn-at-panix.com> Subject: [LIU Comp Sci] LIU Center for Entrepreneurship + Innovation
  29. 2015-03-20 Ruben Safir <mrbrklyn-at-panix.com> Subject: [LIU Comp Sci] Optimum
  30. 2015-03-20 mrbrklyn-at-panix.com Subject: [LIU Comp Sci] [jkeen-at-verizon.net: 2nd New York City Perl Hackathon: hold the
  31. 2015-03-22 Ruben Safir <mrbrklyn-at-panix.com> Subject: [LIU Comp Sci] Re: Kernel thread scheduling
  32. 2015-03-22 mrbrklyn-at-panix.com Subject: [LIU Comp Sci] [jkeen-at-verizon.net: New York City Perl Hackathon 2015: Registration
  33. 2015-03-22 mrbrklyn-at-panix.com Subject: [LIU Comp Sci] [vinc94-at-gmail.com: Re: Kernel thread scheduling]
  34. 2015-03-22 mrbrklyn-at-panix.com Subject: [LIU Comp Sci] [xerofoify-at-gmail.com: Re: Kernel thread scheduling]
  35. 2015-03-23 Keisha Sylvester <keisha.sylvester-at-my.liu.edu> Re: [LIU Comp Sci] Meeting Announcement II
  36. 2015-03-23 Ruben Safir <mrbrklyn-at-panix.com> Subject: [LIU Comp Sci] Meeting Announcement II
  37. 2015-03-23 mrbrklyn-at-panix.com Subject: [LIU Comp Sci] [gabor-at-szabgab.com: [Perlweekly] #191 - Hackathon after Hackathon]
  38. 2015-03-24 Maneesh Kongara <maneeshkongara-at-gmail.com> Re: [LIU Comp Sci] GNU/Linux 1
  39. 2015-03-24 Maneesh Kongara <maneeshkongara-at-gmail.com> Re: [LIU Comp Sci] GNU/Linux 1
  40. 2015-03-24 Ruben Safir <mrbrklyn-at-panix.com> Subject: [LIU Comp Sci] GNU/Linux 1
  41. 2015-03-25 Ruben Safir <mrbrklyn-at-panix.com> Re: [LIU Comp Sci] GNU/Linux 1
  42. 2015-03-25 Ruben <ruben.safir-at-my.liu.edu> Re: [LIU Comp Sci] GNU/Linux 1
  43. 2015-03-25 Ruben Safir <mrbrklyn-at-panix.com> Re: [LIU Comp Sci] GNU/Linux 1
  44. 2015-03-25 Ruben Safir <mrbrklyn-at-panix.com> Subject: [LIU Comp Sci] decent threading outline that fills in where our notes let off
  45. 2015-03-25 Ruben Safir <mrbrklyn-at-panix.com> Subject: [LIU Comp Sci] I love this HW problem
  46. 2015-03-25 Ruben Safir <mrbrklyn-at-panix.com> Subject: [LIU Comp Sci] Java Crimes
  47. 2015-03-25 Ruben Safir <mrbrklyn-at-panix.com> Subject: [LIU Comp Sci] jobs jobs
  48. 2015-03-25 Ruben Safir <mrbrklyn-at-panix.com> Subject: [LIU Comp Sci] Threaded Programming example
  49. 2015-03-25 Ruben Safir <mrbrklyn-at-panix.com> Subject: [LIU Comp Sci] Threads and Speed
  50. 2015-03-26 Ruben Safir <mrbrklyn-at-panix.com> Subject: [LIU Comp Sci] Cpt 4 HW from pr 13-18
  51. 2015-03-26 Ruben <ruben.safir-at-my.liu.edu> Subject: [LIU Comp Sci] Fwd: [NYLXS - HANGOUT] GNU/Linux 1
  52. 2015-03-26 Ruben Safir <mrbrklyn-at-panix.com> Subject: [LIU Comp Sci] Kernel Learning Resource - #1
  53. 2015-03-27 Ruben Safir <mrbrklyn-at-panix.com> Subject: [LIU Comp Sci] AVl Trees
  54. 2015-03-27 Ruben Safir <mrbrklyn-at-panix.com> Subject: [LIU Comp Sci] Re: Cpt 4 HW Programming Project 4-20 (and 3-20)
  55. 2015-03-28 Ruben Safir <mrbrklyn-at-panix.com> Subject: [LIU Comp Sci] Jobs
  56. 2015-03-28 Ruben Safir <mrbrklyn-at-panix.com> Subject: [LIU Comp Sci] JOUNAL MEETING AT 10AM TOMORROW
  57. 2015-03-29 Ruben Safir <mrbrklyn-at-panix.com> Subject: [LIU Comp Sci] Fwd: usage of dma_common_mmap
  58. 2015-03-30 Ruben Safir <mrbrklyn-at-panix.com> Subject: [LIU Comp Sci] HW 4.18 Problem

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