Results 1 to 6 of 6

Thread: Looking for sites to learn network diagnostics and security

  1. #1
    Join Date
    Jan 2009
    Location
    Nakhorn Sawan, Thailand
    Beans
    164
    Distro
    Ubuntu 12.04 Precise Pangolin

    Looking for sites to learn network diagnostics and security

    I've had many years of experience with computers, so I'm not afraid of the command line, but I don't know as much as I need to know about networking and how to analyze what's going on. I hope somebody can recommend some web sites that can teach me how to use the tools that are available in the Un*xes. I know, for example, there is a program called netstat, but I'd like to find a web site that is a little easier to understand than the man page. I remember, years ago, on guy showing me a program that captured and examined packets, but I don't remember what its name was. I think I really need some sites that teach beginners about basic security administration for Linux, too.

  2. #2
    Join Date
    Oct 2007
    Beans
    338

    Re: Looking for sites to learn network diagnostics and security

    Quote Originally Posted by Acharn View Post
    I've had many years of experience with computers, so I'm not afraid of the command line, but I don't know as much as I need to know about networking and how to analyze what's going on. I hope somebody can recommend some web sites that can teach me how to use the tools that are available in the Un*xes. I know, for example, there is a program called netstat, but I'd like to find a web site that is a little easier to understand than the man page. I remember, years ago, on guy showing me a program that captured and examined packets, but I don't remember what its name was. I think I really need some sites that teach beginners about basic security administration for Linux, too.
    Ill get you started a little
    http://www.linuxhowtos.org/Network/netstat.htm
    https://wiki.ubuntu.com/BasicSecurity
    https://help.ubuntu.com/12.04/serverguide/
    There are probably a dozen packet/network analyzers wireshark,etherape

  3. #3
    Join Date
    Sep 2011
    Beans
    1,531

    Re: Looking for sites to learn network diagnostics and security

    The way I started learning was to just fire up wireshark and look at the output. When I encountered something I didn't understand I googled it. I never found a less ADHD way to learn it although I'm sure there's a way.

    Some other resources to look at:
    https://wiki.ubuntu.com/BasicSecurity/DidIJustGetOwned
    http://msdaisysramblings.blogspot.co...wall-logs.html

    Wireshark has oodles of tutorials on their website.
    http://www.wireshark.org/docs/

    Basic linux hardening:
    http://www.irongeek.com/i.php?page=v...stem-hardening

  4. #4
    Join Date
    Jan 2009
    Location
    Nakhorn Sawan, Thailand
    Beans
    164
    Distro
    Ubuntu 12.04 Precise Pangolin

    Re: Looking for sites to learn network diagnostics and security

    Thank you. That looks like what I had in mind but couldn't articulate well yesterday. I stumbled across one of the old bookmarks that was very important to me, the ONLAMP website.They used to have dozens, maybe hundreds, of accessible articles. I never heard of wireshark; sounds very interesting. I've forgotten so much over the last five years of not working with it. The technicians from my ISP came today and replaced my router, so now I'm experiencing what I thought the Internet should be. It helps.

  5. #5
    Join Date
    Sep 2007
    Location
    Oklahoma, USA
    Beans
    2,356
    Distro
    Xubuntu 16.04 Xenial Xerus

    Re: Looking for sites to learn network diagnostics and security

    Quote Originally Posted by Acharn View Post
    I never heard of wireshark; sounds very interesting.
    The name "wireshark" is comparatively new but the program itself isn't. It got the new name a year or two ago and I've already forgotten what the old name was. It's probably the same program you mentioned originally that let you see all the packets and told you what each meant!

    I second Ms. Daisy's suggestion that you simply trawl around and read anything that looks at all relevant. I've been into networking one way or another for more than 50 years and helped set up the first cross-country connections (Phoenix, AZ to Boston via Oklahoma City) back in the early 70s, but that's not a lot of help with today's technology. Following discussions such as this one gets much quicker results!
    --
    Jim Kyle in Oklahoma, USA
    Linux Counter #259718
    Howto mark thread: https://wiki.ubuntu.com/UnansweredPo.../SolvedThreads

  6. #6
    Join Date
    Jun 2011
    Location
    The Shadow Gallery
    Beans
    6,782

    Re: Looking for sites to learn network diagnostics and security

    Quote Originally Posted by JKyleOKC View Post
    The name "wireshark" is comparatively new but the program itself isn't. It got the new name a year or two ago and I've already forgotten what the old name was. It's probably the same program you mentioned originally that let you see all the packets and told you what each meant!

    I second Ms. Daisy's suggestion that you simply trawl around and read anything that looks at all relevant. I've been into networking one way or another for more than 50 years and helped set up the first cross-country connections (Phoenix, AZ to Boston via Oklahoma City) back in the early 70s, but that's not a lot of help with today's technology. Following discussions such as this one gets much quicker results!
    It has been called Wireshark for about 6 years, originally it was Ethereal, it is really a GUI based pretty TCPDump
    Feel Free to Bitcoin Tip: 135Rp4pwwYTHEJ4u8bxKaDQiC91N9LUoV2

    Backtrack - Giving machine guns to monkeys since 2006
    Kali-Linux - Adding a grenade launcher to the machine guns since 2013

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •