Easy question on Nessus 3.0.3
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Thread: Easy question on Nessus 3.0.3

  1. #1
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    Easy question on Nessus 3.0.3

    Please let me know if there are specialized newsgroups to discuss Nessus commands.

    Here is my question:
    I've installed and launched Nessus on Fedora 5.

    Going through the Nessus documentation (www.tenablesecurity.com), I didn't figure out how to scan a certain range of IP addresses.

    I did:
    /sbin/service/sbin/nessusd start
    [OK]
    But from there I am lost on how to proceed with this. Please advise.

  2. #2
    I'd rather be fishing DjM's Avatar
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    You might want to check out this tutorial by thehourse13.

    understand that there are many ways to install and configure Nessus. This tutorial covers only one of them. This tutorial makes several assumptions:
    1. You are competent with Windows, Linux and basic networking. If you don’t know how to use command line FTP for example, then this tutorial will be of no use to you.
    2. You have 2 computers, one with a Windows and the other with Red Hat, both in good working order. It also assumes that you have at least one supported compiler such as GCC installed on your Red Hat Box.
    3. This tutorial is written by me with no references or “borrowed” material. If something doesn’t work or something isn’t clear, yell at me because I am 100% responsible.
    LINK

    Cheers:
    DjM

  3. #3
    Master-Jedi-Pimps0r & Moderator thehorse13's Avatar
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    The easiest way to scan with Nessus is to use the NessusWX Win32 GUI client. Read over the tutorials. If you're still lost, lemme know.

    --TH13
    Our scars have the power to remind us that our past was real. -- Hannibal Lecter.
    Talent is God given. Be humble. Fame is man-given. Be grateful. Conceit is self-given. Be careful. -- John Wooden

  4. #4
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    The tutorials will help a lot. One thing that isn't all that clear for folks not used to the Linux environment is that nessusd is a daemon. That is what you ran. It needs to be running for you to do anything else. Now you need to open a second terminal screen and run the scan, if that is what you want to do. Or, you can use the NessusWX client on a Windows Desktop.

  5. #5
    Senior Member bAgZ's Avatar
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    After running the daemon just add nessus user by using command nessus-adduser and then start nessus client by typing something like nessus. It will then connect to the daemon locally and you can then start scanning after you login with the user you just added.
    ----------------------------------------------------------------------------------------------------------
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  6. #6
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    I installed the NessusWX client on Windows.

    I launch the Nessus console, I do "Communications", Name=<IP address_Linux_Nessus_Server>.
    Port number = 1241 (default)

    Encryption=unencrypted.

    Authentication
    Login=admin password=mypassword


    Then on the client I am getting
    Error:Server doesn't support NTP/1.2 protocol. Connection terminated.

    Any idea what I am missing here ? Is the NTP/1.2 the Network Time Protocol ? I am browsing through the "Help" files and it doesn't mention how to enable NTP on the Nessus server (Linux) software.

  7. #7
    Master-Jedi-Pimps0r & Moderator thehorse13's Avatar
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    A few things here. Do you have OpenSSL on the linux box? At the console, openssl version
    Is the Nessusd daemon running? At the console, netstat -an | grep 1241

    --Th13
    Our scars have the power to remind us that our past was real. -- Hannibal Lecter.
    Talent is God given. Be humble. Fame is man-given. Be grateful. Conceit is self-given. Be careful. -- John Wooden

  8. #8
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    Yes, the nessus demo is running.
    I started it by doing nessusd -D


    #openssl version
    returned

    OpenSSL 0.9.8a 11 Oct 2005


    netstat -an | 1241

    returns
    tcp 0 0 0.0.0.0:1241 0.0.0.:* LISTEN

    Then from my nessuswx, if do "telnet <linux_nessus> 1241"

    I am able to connect to the Linux box; and then netstat -an | 1241 lists an established connection OK.

    The error "NTP/1.2 protocol. connection terminated" persists though.

  9. #9
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    Great. It was a messed up cert.
    I recreated the cert, copied to the client and now I can connect. Thanks all for your help.
    Just neet to sctart the scanning process now.

  10. #10
    Master-Jedi-Pimps0r & Moderator thehorse13's Avatar
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    OK, but you did run through and did a mkcert the first time around? If you did and it created a bad cert, I'd like to know about it. I want to report it to the developer. There should be a different warning on the client side when this happens.

    Are you running the WX client 1.4.5D from http://nessuswx.nessus.org?

    Thanks.

    --TH13
    Our scars have the power to remind us that our past was real. -- Hannibal Lecter.
    Talent is God given. Be humble. Fame is man-given. Be grateful. Conceit is self-given. Be careful. -- John Wooden

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