[plug] Mandrake 9.0 firewall?? problem

[Leon Brooks]

On Tuesday 26 November 2002 03:18 pm, Stephen Boak wrote:
> can't ping 10.0.0.26 - sendmsg: Operation not permitted

This generally means one of two things - either there is firealling in place 
or the network card you're trying to ping from has a scrod configuration.

Check the iptables rule counters to make sure the DROPs have scored zero 
packets. F.e. you might be accepting TCP only, in which case ICMP (ping) 
would get DROPped.

Just as a test, add an all/all ACCEPT rule on FORWARD. I'm presuming that 
/proc/sys/net/ipv4/ip_forward is set to 1

Cheers; Leon