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[ILUG] ipchains logs and nmap audit

[ILUG] ipchains logs and nmap audit

Jakma, Paul Paul.Jakma at compaq.com
Tue Jan 25 17:41:18 GMT 2000


> and then logged into syslog. When I try to connect from 
> another address to
> the IP address of the ppp0 interface, nothing gets logged. 

uhmmm... when you do this, are you physically accessing the box from ppp0?

eg

[remote1]  ---[ppp0  box1 eth0]--------[eth0 box2]

are you telnet'ing to ppp0 from box2? 

Because if you are that packet will never arrive from ppp0. Ie packet
arrives on eth0 destined for ppp-ip. kernel on box1 notices that ppp-ip is
local, and hence it doesn't go any further through the low-level network
layers to userspace, eg tcpd. It won't pass through any ipchains rules for
ppp0.

To verify the rules you will have to test from a machine actually connected
via ppp0, eg remote1.

> Instead, the tcplogd daemon

regards,

-paul jakma.




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