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    ------------------------------------------------------------------------------------
    * ¾Æ·¡±Û Ãâó : sec-info ¸ÞÀϸµ ¸®½ºÆ®

    °¢ OSÀÇ ¹öÀü ¹× Á¤º¸¸¦ ¼û±â´Â ¹æ¹ý
    From: Sukbum Hong (antihong@tt.co.kr)
    Date: Thu Sep 13 2001 - 17:53:26 KST

    ------------------------------------------------------------------------------------

    ¾È³çÇϽʴϱî?

    ¿À´Ã°ú³»ÀÏÀÇ È«¼®¹üÀÔ´Ï´Ù.

    ¿ø°ÝÁöÀÇ OS ¹× °¢Á¾ µ¥¸ó¿¡ ´ëÇÑ ¹öÀü Á¤º¸¸¦ ¼û±â°Å³ª À§Á¶ÇÏ´Â ¹æ¹ý¿¡ ´ëÇÑ
    ¼³¸íÀÔ´Ï´Ù.
    ÁÖ·Î ¼Ò½º¸¦ ¼öÁ¤Çϰųª config ¿¡¼­ Áö¿øÀÌ µÇ´Â °æ¿ì
    config ÆÄÀÏ¿¡¼­ ¼³Á¤ÇÏ´Â ¹æ¹ýµµ ÀÖ½À´Ï´Ù.
    Âü°íÇϽñ⠹ٶø´Ï´Ù.

    °¨»çÇÕ´Ï´Ù.

    ### Apache À¥¼­¹ö
    (1) ¼Ò½º ¼öÁ¤
    src/include/httpd.h :
    #define SERVER_BASEVERSION "Apache/[x.x.x.]"

    (2) Conf ¼³Á¤
    httpd.conf ÆÄÀÏ¿¡¼­
    ServerTokens ¼³Á¤

    ServerTokens Prod[uctOnly]
      --> Server: Apache
    ServerTokens Min[imal]
      --> Server: Apache/1.3.0
    ServerTokens OS
      --> Server: Apache/1.3.0 (Unix)
    ServerTokens Full (or not specified)
      --> Server: Apache/1.3.0 (Unix) PHP/3.0 MyMod/1.2

    ### Proftpd

    Conf ¼³Á¤
    proftpd.conf ÆÄÀÏ¿¡¼­
    ServerIdent on "[x.x.x]"

    ### Sendmail
    (1) ¼Ò½º ¼öÁ¤
    sendmail/version.c
    char Version[] = "[x.x.x]";
    (2) Conf ¼³Á¤
    /etc/sendmail.cf:
    # SMTP initial login message
    O SmtpGreetingMessage=$j [x.x.x]

    ### Bind
    Conf ¼³Á¤
    /etc/named.conf ÆÄÀÏ¿¡¼­
    options {
            directory "/var/named";
            version "x.x.x";
    };

    ### SSH1/OpenSSH
    ¼Ò½º ¼öÁ¤
    version.h ÆÄÀÏ¿¡¼­
    #define SSH_VERSION "[x.x.x]"

    ### SSH2
    ¼Ò½º ¼öÁ¤
    apps/ssh/ssh2version.h ÆÄÀÏ¿¡¼­
    #define SSH2_VERSION "[x.x.x]"

    ### IMAP (imapd,ipop2d,ipop3d)
    ¼Ò½º ¼öÁ¤
    src/imapd/imapd.c ÆÄÀÏ¿¡¼­ char *version = "[x.x.x]";
    src/ipopd/ipop2d.c ÆÄÀÏ¿¡¼­ char *version = "[x.x.x]";
    src/ipopd/ipop3d.c ÆÄÀÏ¿¡¼­ char *version = "[x.x.x]";

    ### O.S.-Guessing Linux (2.2.x)
    kernel patch: KOSF (Kernel Operation System Faker)
    http://linuxsecurity.com.br/tools/patch/linux/kosf.tar.gz

    ### O.S.-Guessing Linux (2.4.x)
    http://ippersonality.sourceforge.net/
    CONFIG_IP_NF_PERS patch.
    ipt_PERS http://ippersonality.sourceforge.net/doc/ippersonality-en.html

    ### Microsoft Windows NT registry
    http://www.linuxsecurity.com.br/info/microsoft/obscurity.nt.txt

    * Âü°í »çÇ×
      À¥¼­¹ö Çì´õ¿¡¼­ PHP ¹öÀü Á¤º¸ ¼û±â±â (±Û ÁÁÀºÁøÈ£)
      http://coffeenix.net/board_view.php?bd_code=291


    Ä¿ÇǴнº, ½Ã½ºÅÛ ¿£Áö´Ï¾îÀÇ ½°ÅÍ / URL : http://coffeenix.net/board_view.php?bd_code=163