https://community.hpe.com/t5/operating-system-hp-ux/sequential-port/m-p/2420380#M22 You can use nettune on HPUX 10.20 to change the tcp_random_seq. The default is <BR />0.<BR /><BR />mowgli $ nettune -h tcp_random_seq<BR />tcp_random_seq:<BR />When set to one (1), TCP randomizes initial connection sequence numbers. When <BR />set to two (2), a more sophisticated randomizer is used. When set to zero (0), <BR />normal time-based, linearly increasing sequence numbers are used as described <BR />in RFC 793. The default is disabled (0).<BR /> Thu, 23 Mar 2000 16:27:30 GMT Atif Malik_2 2000-03-23T16:27:30Z https://community.hpe.com/t5/operating-system-hp-ux/sequential-port/m-p/2420379#M21 Hello-<BR /><BR />I'm trying to secure my HP-UX environment and I ran a scanner (Cybercop) on my <BR />machine that told me that my server spawns it's listening ports in sequential <BR />order. Is there any way that I can fix this? I'd appreciate any help?<BR /><BR />Thank you,<BR />Christine Thu, 23 Mar 2000 16:03:18 GMT https://community.hpe.com/t5/operating-system-hp-ux/sequential-port/m-p/2420379#M21 Christine Gracon 2000-03-23T16:03:18Z https://community.hpe.com/t5/operating-system-hp-ux/sequential-port/m-p/2420380#M22 You can use nettune on HPUX 10.20 to change the tcp_random_seq. The default is <BR />0.<BR /><BR />mowgli $ nettune -h tcp_random_seq<BR />tcp_random_seq:<BR />When set to one (1), TCP randomizes initial connection sequence numbers. When <BR />set to two (2), a more sophisticated randomizer is used. When set to zero (0), <BR />normal time-based, linearly increasing sequence numbers are used as described <BR />in RFC 793. The default is disabled (0).<BR /> Thu, 23 Mar 2000 16:27:30 GMT https://community.hpe.com/t5/operating-system-hp-ux/sequential-port/m-p/2420380#M22 Atif Malik_2 2000-03-23T16:27:30Z