Re: Debian 8 system is not fully functional

[zhang yang <shuyang9708@gmail.com>]

When I turn it on https://www.kernel.org/doc/html/latest/networking/ip-sysctl.html I guess it's IP_ Dynaddr - Boolean.
If set non-zero, enables support for dynamic addresses. If set to a non-zero value larger than 1, a kernel log message will be printed when dynamic address rewriting occurs.Default : 0.

Should it be set to 1 to send packets disguised as IP? But when I use vi IP_ dynaddr
To modify and save the prompt: "IP"_ dynaddr" E212: Can't open file for writing“.

So I used Chmod 777 ip_ dynaddr authority, display error: Chmod: changing permissions of 'IP_ dynaddr': Operation not permitted.

I use chaddr - i ip_dynaddr command to removes attributes and displays an error: chattr: Inappropriate ioctl for device while reading flags on ip_dynaddr.  How to set dynaddr?

On Wed, Dec 23, 2020 at 10:51 PM Dan Ritter <dsr@randomstring.org> wrote:

zhang yang wrote:
> When I write a raw socket to send packets in Linux C, it shows:
> WARNNING:The current server does not support IP spoofing.
> How to set up debian8 system to use this function

1. Read
https://www.kernel.org/doc/html/latest/networking/ip-sysctl.html

2. Install a Debian 10 (stable) system. Debian supports
upgrading in place to 9, then 10. If you're doing spoofing, you
are security-conscious; if you are security-conscious, you
should be running stable, not old-old-stable.

3. Alternatively, you don't mean to be spoofing and your problem
is in your code.

-dsr-