Dear everyone:
I'm sorry to my mistake.
I sent wrong result in my mail. I send the correct result.
This result show following.
Linux-2.4.19 vanila
This generate random positive increments class(RI) ISN.
Linux-2.4.19 applied this patch
This generate true random class(TR) ISN.
This result show Linux kernel come to be able to generate
True Random class TCP ISN with the patch.
Sincerely yours,
* * * * * * The result of the exam * * * * * *
-- Linux-2.4.19-vanila(Plain version of Linux-2.4.19) --
/usr/local/bin/nmap -sS -O -vv 192.168.0.1
Starting nmap V. 3.00 ( www.insecure.org/nmap/ )
* * * * * * * * * * Omitted * * * * * * * * * *
Remote operating system guess: Linux Kernel 2.4.0 - 2.5.20
OS Fingerprint:
* * * * * * * * * * Omitted * * * * * * * * * *
TSeq(Class=RI%gcd=2%SI=21FD37%IPID=Z%TS=100HZ) <=== This is the
difference ===>
* * * * * * * * * * Omitted * * * * * * * * * *
Nmap run completed -- 1 IP address (1 host up) scanned in 5 seconds
-- Linux-2.4.19-vanila(Plain version of Linux-2.4.19) --
-- TCP ISN calcuration with MD5 algorithm for Linux-2.4.19. --
/usr/local/bin/nmap -sS -O -vv 192.168.0.1
Starting nmap V. 3.00 ( www.insecure.org/nmap/ )
* * * * * * * * * * Omitted * * * * * * * * * *
TCP/IP fingerprint:
* * * * * * * * * * Omitted * * * * * * * * * *
TSeq(Class=TR%IPID=Z%TS=100HZ) <=== This is the difference ===>
* * * * * * * * * * Omitted * * * * * * * * * *
Nmap run completed -- 1 IP address (1 host up) scanned in 30 seconds
-- TCP ISN calcuration with MD5 algorithm for Linux-2.4.19 --
--
---------------------------
Takeharu KATO
E-mail: tk1219@alles.or.jp
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