Re: Detecting break-ins

2002-01-16 Thread Javier Fernández-Sanguino Peña
On Wed, Jan 16, 2002 at 07:14:38AM -0800, Alvin Oga wrote: > > hi ya > > On Wed, 16 Jan 2002, Yotam Rubin wrote: > > > On Tue, Jan 15, 2002 at 09:04:07PM +0100, Balazs Javor wrote: > > > Hi, > > > > > > Recently I've installed some IP logging deamons > > > (snort, ippl along with logcheck) and

Re: Detecting break-ins

2002-01-16 Thread Javier Fernández-Sanguino Peña
On Wed, Jan 16, 2002 at 07:14:38AM -0800, Alvin Oga wrote: > > hi ya > > On Wed, 16 Jan 2002, Yotam Rubin wrote: > > > On Tue, Jan 15, 2002 at 09:04:07PM +0100, Balazs Javor wrote: > > > Hi, > > > > > > Recently I've installed some IP logging deamons > > > (snort, ippl along with logcheck) and

Re: Detecting break-ins

2002-01-16 Thread Wichert Akkerman
Previously Noah L. Meyerhans wrote: > Provided you recognize IPPL's capabilities and limitation, it can be a > very useful tool. As always, it can be dangerous if misused. Biggest problem with it is that it seems to die on occasion, although I haven't seen that on unstable boxes recently. Wicher

Re: Detecting break-ins

2002-01-16 Thread Noah L. Meyerhans
On Wed, Jan 16, 2002 at 04:58:33PM +0200, Yotam Rubin wrote: > > Strangely, ippl is an extremely popular tool. Using ippl is inadvisable, it > provides a false sense of information. ippl is unversatile, the filter > language is too simple to allow complex operations. I tend to agree with your a

Re: Detecting break-ins

2002-01-16 Thread Alvin Oga
hi ya On Wed, 16 Jan 2002, Yotam Rubin wrote: > On Tue, Jan 15, 2002 at 09:04:07PM +0100, Balazs Javor wrote: > > Hi, > > > > Recently I've installed some IP logging deamons > > (snort, ippl along with logcheck) and I was amazed you'd need (host/network) IDS's in addition to the above log chec

Re: Detecting break-ins

2002-01-16 Thread Yotam Rubin
On Tue, Jan 15, 2002 at 09:04:07PM +0100, Balazs Javor wrote: > Hi, > > Recently I've installed some IP logging deamons > (snort, ippl along with logcheck) and I was amazed Strangely, ippl is an extremely popular tool. Using ippl is inadvisable, it provides a false sense of information. ippl is u

Re: Detecting break-ins

2002-01-16 Thread Wichert Akkerman
Previously Noah L. Meyerhans wrote: > Provided you recognize IPPL's capabilities and limitation, it can be a > very useful tool. As always, it can be dangerous if misused. Biggest problem with it is that it seems to die on occasion, although I haven't seen that on unstable boxes recently. Wiche

Re: Detecting break-ins

2002-01-16 Thread Noah L. Meyerhans
On Wed, Jan 16, 2002 at 04:58:33PM +0200, Yotam Rubin wrote: > > Strangely, ippl is an extremely popular tool. Using ippl is inadvisable, it > provides a false sense of information. ippl is unversatile, the filter > language is too simple to allow complex operations. I tend to agree with your

Re: Detecting break-ins

2002-01-16 Thread Alvin Oga
hi ya On Wed, 16 Jan 2002, Yotam Rubin wrote: > On Tue, Jan 15, 2002 at 09:04:07PM +0100, Balazs Javor wrote: > > Hi, > > > > Recently I've installed some IP logging deamons > > (snort, ippl along with logcheck) and I was amazed you'd need (host/network) IDS's in addition to the above log che

Re: Detecting break-ins

2002-01-16 Thread Yotam Rubin
On Tue, Jan 15, 2002 at 09:04:07PM +0100, Balazs Javor wrote: > Hi, > > Recently I've installed some IP logging deamons > (snort, ippl along with logcheck) and I was amazed Strangely, ippl is an extremely popular tool. Using ippl is inadvisable, it provides a false sense of information. ippl is

Re: Detecting break-ins

2002-01-15 Thread Alvin Oga
hi balaz how much time and energy do you want to spend ??? - 1st passs.. - update your box regularly per debians security patches - read debians security howto http://www.debian.org/doc/manuals/securing-debian-howto - 2nd pass... - you;'re doing w/ snot/ippl/lo

Re: Detecting break-ins

2002-01-15 Thread Noah L. Meyerhans
On Tue, Jan 15, 2002 at 09:04:07PM +0100, Balazs Javor wrote: > Then there are more exotic stuff. High port UDP attampts, > connection to port 113 etc. High port UDP stuff is often just traceroutes. 113 is normal, as many servers will attempt an auth lookup when you access them. > Now the logs p

Detecting break-ins

2002-01-15 Thread Balazs Javor
Hi, Recently I've installed some IP logging deamons (snort, ippl along with logcheck) and I was amazed how many break-in attempts there are each day on my simple home box which isn't even adverised anywhere, as I only run a few services intended for friends and family (apache, wu-ftpd, exim). I c

Re: Detecting break-ins

2002-01-15 Thread Alvin Oga
hi balaz how much time and energy do you want to spend ??? - 1st passs.. - update your box regularly per debians security patches - read debians security howto http://www.debian.org/doc/manuals/securing-debian-howto - 2nd pass... - you;'re doing w/ snot/ippl/l

Re: Detecting break-ins

2002-01-15 Thread Noah L. Meyerhans
On Tue, Jan 15, 2002 at 09:04:07PM +0100, Balazs Javor wrote: > Then there are more exotic stuff. High port UDP attampts, > connection to port 113 etc. High port UDP stuff is often just traceroutes. 113 is normal, as many servers will attempt an auth lookup when you access them. > Now the logs

Detecting break-ins

2002-01-15 Thread Balazs Javor
Hi, Recently I've installed some IP logging deamons (snort, ippl along with logcheck) and I was amazed how many break-in attempts there are each day on my simple home box which isn't even adverised anywhere, as I only run a few services intended for friends and family (apache, wu-ftpd, exim). I