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

2002-01-16 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 checkers

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 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.

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 I was amazed

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 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.

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

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

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/

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

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

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/