Then i boot FreeBSD 4.7, not work values in /etc/sysctl.conf see file - sysctl.jpg. How solve this problem? ## help me ;/

[Martin Karlsson]

* kinder2000 <kinder2000 at mail.ru> [2003-03-26 23.10 +1000]:
> Hi, !

Hi,

> Then i boot FreeBSD 4.7, not work  values in  /etc/sysctl.conf
> at console i se this messages:
> 
> Warring: net.ipv4.icmp_ignore_bogus_error_responses=1 does not exist
> Warring: net.ipv4.conf.all.log_martians=1 does not exist
> Warring: net.ipv4.conf.all.accept_source_route=0 does not exist
> Warring: net.ipv4.tcp_syncookies=1 does not exist
> Warring: net.ipv4.conf.all.send_redirects=0 does not exist
> Warring: net.ipv4.conf.all.accept_redirects=0 does not exist
> Warring: net.ipv4.tcp_fin_timeout=30 does not exist
> Warring: net.ipv4.tcp_keepalive_time=1800 does not exist
> Warring: net.ipv4.tcp_window_scaling=0 does not exist
> Warring: net.ipv4.tcp_sack=0 does not exist
> Warring: net.ipv4.tcp_timestamps=0 does not exist
> Warring: net.ipv4.tcp_max_syn_backlog=2048 does not exist
> Warring: net.ipv4.conf.all.forwarding=0 does not exist
> Warring: net.ipv4.icmp_echo_ignore_broadcasts=1 does not exist
> 
> How solve this problem?
> I found articles about anti DoS/Flood atacks.
> But it not work ;/

Do the values to sysctl you list below exist? Have you checked?

The command "sysctl -a" lists all currently (non-opaque) values. Pipe it
through a pager such as less(1).

Read the sysctl(8) man-page for more info.

> sysctl.conf
> ==========================================================================
> net.ipv4.conf.all.send_redirects=0
> net.ipv4.conf.all.accept_redirects=0
> net.ipv4.conf.all.accept_source_route=0
> net.ipv4.conf.all.mc_forwarding=0
> net.ipv4.icmp_echo_ignore_broadcasts=1
> net.ipv4.icmp_ignore_bogus_error_responses=1
> net.ipv4.conf.all.log_martians=1
> net.ipv4.conf.all.rp_filter=1

HTH
-- 
Martin Karlsson