On Thursday 29 May 2003 08:56, ius wrote: > Refuse responding to broadcasts request > > As for the ping request, it's also important to disable broadcast > requests. When a packet is > sent to an IP broadcast address (i.e. 192.168.1.255) from a machine on the > local network, that packet is delivered to all machines on that network. > Then all the machines on a network respond to this ICMP echo request and > the result can be severe network congestion or outages DOS > (Denial-of-Service attacks). See the RFC 2644 for more information. > > Step 1 > > Edit the sysctl.conf file (vi /etc/sysctl.conf) and add the following line: > > # Enable ignoring broadcasts request > net.ipv4.icmp_echo_ignore_broadcasts = 1 > > Step 2 > > Once the configuration has been set, you must restart your network for the > change to take effect. > The command to restart the network is the following: > To restart all networks devices manually on your system, use the following > command: > > [EMAIL PROTECTED] /]# /etc/rc.d/init.d/network restart
thx... aku coba ya... -Irvan- --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
