Find the answer to your Linux question:
Page 1 of 2 1 2 LastLast
Results 1 to 10 of 13
Hi, How I can block banner grabbing in Linux?? Regards...
Enjoy an ad free experience by logging in. Not a member yet? Register.
  1. #1
    Just Joined!
    Join Date
    Jun 2012
    Posts
    5

    Block Banner Grabbing Linux


    Hi,

    How I can block banner grabbing in Linux??

    Regards

  2. #2
    Linux Guru Lazydog's Avatar
    Join Date
    Jun 2004
    Location
    The Keystone State
    Posts
    2,677
    What do you mean with banner grabbing?

    Regards
    Robert

    Linux
    The adventure of a life time.

    Linux User #296285
    Get Counted

  3. #3
    Trusted Penguin Irithori's Avatar
    Join Date
    May 2009
    Location
    Munich
    Posts
    3,398
    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. #4
    Trusted Penguin
    Join Date
    May 2011
    Posts
    4,353
    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.

  5. #5
    Just Joined!
    Join Date
    Jun 2012
    Posts
    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

  6. #6
    Administrator MikeTbob's Avatar
    Join Date
    Apr 2006
    Location
    Texas
    Posts
    7,864
    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.

  7. #7
    Linux Guru Lazydog's Avatar
    Join Date
    Jun 2004
    Location
    The Keystone State
    Posts
    2,677
    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

    Linux
    The adventure of a life time.

    Linux User #296285
    Get Counted

  8. #8
    Just Joined!
    Join Date
    Jun 2012
    Posts
    5
    How I can prevent/block this?

  9. #9
    Linux Guru Lazydog's Avatar
    Join Date
    Jun 2004
    Location
    The Keystone State
    Posts
    2,677
    Lock the system down to only what is needed for it to function as needed.

    Regards
    Robert

    Linux
    The adventure of a life time.

    Linux User #296285
    Get Counted

  10. #10
    Just Joined!
    Join Date
    Jun 2012
    Posts
    5
    What do you mean, Please explain a little.

Page 1 of 2 1 2 LastLast

Posting Permissions

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