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  1. #1

    Block Banner Grabbing Linux


    Hi,

    How I can block banner grabbing in Linux??

    Regards

  2. #2
    Linux Guru Lazydog's Avatar
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    What do you mean with banner grabbing?

    Regards
    Robert

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  3. #3
    Trusted Penguin Irithori's Avatar
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    Probably something like this
    Code:
    $ telnet 127.0.0.1 22
    Trying 127.0.0.1...
    Connected to 127.0.0.1.
    Escape character is '^]'.
    SSH-2.0-OpenSSH_5.9
    You cannot generally block this.
    Each daemon would need to be configured or even patched to not show a banner or only a very generic one.
    You must always face the curtain with a bow.

  4. $spacer_open
    $spacer_close
  5. #4
    can you describe in more detail what you mean by banner grabbing? do you mean the ssh banner? if so, check out the sshd_config file.

  6. #5

    banner grabbing

    Yeh I scanned my system using nessus (vulnerability scanner) it gave me the Kernel version, OS name & OS type etc.
    I want to prevent this.
    Regards
    Insaaf

  7. #6
    Administrator MikeTbob's Avatar
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    Be advised that that I merged your two threads, duplicate threads are not allowed.
    I do not respond to private messages asking for Linux help, Please keep it on the forums only.
    All new users please read this.** Forum FAQS. ** Adopt an unanswered post.

    I'd rather be lost at the lake than found at home.

  8. #7
    Linux Guru Lazydog's Avatar
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    Quote Originally Posted by insaafkhan View Post
    Yeh I scanned my system using nessus (vulnerability scanner) it gave me the Kernel version, OS name & OS type etc.
    I want to prevent this.
    Regards
    Insaaf
    Did you nessus on a wide open system? If yes then this is normal.

    Regards
    Robert

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  9. #8
    How I can prevent/block this?

  10. #9
    Linux Guru Lazydog's Avatar
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    Lock the system down to only what is needed for it to function as needed.

    Regards
    Robert

    Linux
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    Linux User #296285
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  11. #10
    What do you mean, Please explain a little.

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