Sequential port

[Christine Gracon]

Hello-

I'm trying to secure my HP-UX environment and I ran a scanner (Cybercop) on my
machine that told me that my server spawns it's listening ports in sequential
order. Is there any way that I can fix this? I'd appreciate any help?

Thank you,
Christine

[Atif Malik_2]

You can use nettune on HPUX 10.20 to change the tcp_random_seq. The default is
0.

mowgli $ nettune -h tcp_random_seq
tcp_random_seq:
When set to one (1), TCP randomizes initial connection sequence numbers. When
set to two (2), a more sophisticated randomizer is used. When set to zero (0),
normal time-based, linearly increasing sequence numbers are used as described
in RFC 793. The default is disabled (0).