Re: What is my next step as a script kiddie ? (DDoS)

2003-01-11 Thread Richard A Steenbergen
On Sat, Jan 11, 2003 at 07:15:19AM +0300, "."@babolo.ru wrote: > IMHO it is almoust impossible to touch > properly configured router without > open services on it. Don't be silly. Routers are fragile little things compared to hosts, with much less CPU and plenty of places to strike. Protecting yo

Re: What is my next step as a script kiddie ? (DDoS)

2003-01-11 Thread Josh Brooks
Thanks for your help - two last questions regarding this: 1. On a FreeBSD router/firewall, does it take more processing power to respond to (and reset) a SYN to a target IP:port that is nonexistent than it does to respond to a target IP:port that is in heavy use ? that is, is there some caching

Re: What is my next step as a script kiddie ? (DDoS)

2003-01-11 Thread .
> On Sat, Jan 11, 2003 at 07:15:19AM +0300, "."@babolo.ru wrote: > > IMHO it is almoust impossible to touch > > properly configured router without > > open services on it. > > Don't be silly. Routers are fragile little things compared to hosts, with be correct... please > much less CPU and plent

Re: What is my next step as a script kiddie ? (DDoS)

2003-01-11 Thread .
> On Thu, Jan 09, 2003 at 10:21:52AM -0800, Josh Brooks wrote: > > > > But, I am concerned ... I am concerned that the attacks will simply > > change/escalate to something else. > > > > If I were a script kiddie, and I suddenly saw that all of my garbage > > packets to nonexistent ports were sudd

ipfw rules - SYN w/o MSS, and ACK with 0 sequence number

2003-01-11 Thread Josh Brooks
Hi, After reading some more documents on DoS attacks (namely http://www.e-gerbil.net/ras/projects/dos/dos.txt ) I have found that there are two nice mechanisms to thwart a large number of ack and syn floods. First, it turns out (from the paper I mention above) that most of the SYN flood tools ou

Re: What is my next step as a script kiddie ? (DDoS)

2003-01-11 Thread .
> Thanks for your help - two last questions regarding this: > > 1. On a FreeBSD router/firewall, does it take more processing power to > respond to (and reset) a SYN to a target IP:port that is nonexistent than > it does to respond to a target IP:port that is in heavy use ? > > that is, is there

Re: PPTP tunneling over PPPoE link

2003-01-11 Thread Archie Cobbs
Brett Glass wrote: > >mpd can do both pppoe and pptp. > > I've tried mpd, and its PPTP seems to be incompatible with > XP and with some Macs. (It doesn't die completely, but runs > at a crawl.) If it worked (and if the scripting language > were more robust) I'd switch to it in a second! That bug

Re: PPTP tunneling over PPPoE link

2003-01-11 Thread Brett Glass
At 06:38 PM 1/11/2003, Archie Cobbs wrote: >That bug has been fixed, in sys/netgraph/ng_pptpgre.c revisions >1.26 and 1.2.2.13. Excellent! In that case, the only other thing I need to be able to use it just about everywhere is to be able to trigger shell commands at various points in the scripts