Re: detecting portscanning

2001-05-25 Thread Vladislav
Hello, --- Rudy Gevaert <[EMAIL PROTECTED]> wrote: > > Check out www.snort.org. Snort capable to detect > > portscans. Note, that not only portscans, but [skip] > Could I use this with ippl? Or just on portscanning > system? As you wish, but you don`t needed any additional ip-logging systems, whe

Re: detecting portscanning

2001-05-25 Thread Rudy Gevaert
Hello, On Thu, 24 May 2001, Vladislav wrote: > Check out www.snort.org. Snort capable to detect > portscans. Note, that not only portscans, but other > "strange" activities (i.e. tracing, os fingerprinting, > etc) and attacks. You can download sources from > original site or get *.deb from debia

Re: detecting portscanning

2001-05-25 Thread Vladislav
Hello, --- Rudy Gevaert <[EMAIL PROTECTED]> wrote: > > Check out www.snort.org. Snort capable to detect > > portscans. Note, that not only portscans, but [skip] > Could I use this with ippl? Or just on portscanning > system? As you wish, but you don`t needed any additional ip-logging systems, wh

Re: detecting portscanning

2001-05-25 Thread Rudy Gevaert
Hello, On Thu, 24 May 2001, Vladislav wrote: > Check out www.snort.org. Snort capable to detect > portscans. Note, that not only portscans, but other > "strange" activities (i.e. tracing, os fingerprinting, > etc) and attacks. You can download sources from > original site or get *.deb from debi

Re: detecting portscanning

2001-05-24 Thread Vladislav
Hello, --- Rudy Gevaert <[EMAIL PROTECTED]> wrote: > It is my first time i'm putting up a server (at > home, cable modem) with > ftp/ssh/apache on it. > > Now I would like to know who does portscans on my > machine, and when. And > how many. > > Is there a package for it in debian? Or do I have

Re: detecting portscanning

2001-05-24 Thread Peter Cordes
On Thu, May 24, 2001 at 03:47:33PM -0600, Tim Uckun wrote: > > >The problem with portsentry is that it binds to all the ports you are > >watching, so people that are scanning actually see those ports open. It is > >better to use snort, which will let you know that the scans have happened > >withou

Re: detecting portscanning

2001-05-24 Thread Vladislav
Hello, --- Rudy Gevaert <[EMAIL PROTECTED]> wrote: > It is my first time i'm putting up a server (at > home, cable modem) with > ftp/ssh/apache on it. > > Now I would like to know who does portscans on my > machine, and when. And > how many. > > Is there a package for it in debian? Or do I hav

RE: detecting portscanning

2001-05-24 Thread Ed Street
mit --limit "$LIMIT_RATE" # This isn't complete as the SYN scan will still get thru BUT it will take ages to show anything. Also use of rp_filter ('spoof' protection) helps out to. Ed -Original Me

Re: detecting portscanning

2001-05-24 Thread Peter Cordes
On Thu, May 24, 2001 at 03:47:33PM -0600, Tim Uckun wrote: > > >The problem with portsentry is that it binds to all the ports you are > >watching, so people that are scanning actually see those ports open. It is > >better to use snort, which will let you know that the scans have happened > >witho

RE: detecting portscanning

2001-05-24 Thread Rudy Gevaert
On Thu, 24 May 2001, Ed Street wrote: > Hello, > > there's several methods to tell that. > > a) use a product like portsentry > b) use iptables/ipchains to reject all forms of portscans > c) don't connect the box to the inet as portscans are a fact of life ;) > > portsentry will trashcan any syste

RE: detecting portscanning

2001-05-24 Thread Ed Street
--Original Message- From: Rudy Gevaert [mailto:[EMAIL PROTECTED] Sent: Thursday, May 24, 2001 4:17 PM To: debian-security@lists.debian.org Subject: detecting portscanning Hello Everyone, It is my first time i'm putting up a server (at home, cable modem) with ftp/ssh/apache on it. Now I wou

Re: detecting portscanning

2001-05-24 Thread Tim Uckun
The problem with portsentry is that it binds to all the ports you are watching, so people that are scanning actually see those ports open. It is better to use snort, which will let you know that the scans have happened without the attacker being aware. Although it binds to all the ports portse

Re: detecting portscanning

2001-05-24 Thread Peter Hicks
On Thursday 24 May 2001 14:01, Rudy Gevaert wrote: > On Thu, 24 May 2001, Rudy Gevaert wrote: > > Hello again, > > Some people suggested ippl, I installed it, and it runs. It works :-) > > Some other people, said I should use portsentry. And I look for it on the > website, and it is a tar.gz file

RE: detecting portscanning

2001-05-24 Thread Ed Street
-m limit --limit "$LIMIT_RATE" # This isn't complete as the SYN scan will still get thru BUT it will take ages to show anything. Also use of rp_filter ('spoof' protection) helps out to. Ed -Original

Re: detecting portscanning

2001-05-24 Thread Rudy Gevaert
On Thu, 24 May 2001, Rudy Gevaert wrote: Hello again, Some people suggested ippl, I installed it, and it runs. It works :-) Some other people, said I should use portsentry. And I look for it on the website, and it is a tar.gz file, but in the unstable section I can find a deb file. But I'm usi

RE: detecting portscanning

2001-05-24 Thread Rudy Gevaert
On Thu, 24 May 2001, Ed Street wrote: > Hello, > > there's several methods to tell that. > > a) use a product like portsentry > b) use iptables/ipchains to reject all forms of portscans > c) don't connect the box to the inet as portscans are a fact of life ;) > > portsentry will trashcan any syst

RE: detecting portscanning

2001-05-24 Thread Ed Street
--Original Message- From: Rudy Gevaert [mailto:[EMAIL PROTECTED]] Sent: Thursday, May 24, 2001 4:17 PM To: [EMAIL PROTECTED] Subject: detecting portscanning Hello Everyone, It is my first time i'm putting up a server (at home, cable modem) with ftp/ssh/apache on it. Now I would like t

detecting portscanning

2001-05-24 Thread Rudy Gevaert
Hello Everyone, It is my first time i'm putting up a server (at home, cable modem) with ftp/ssh/apache on it. Now I would like to know who does portscans on my machine, and when. And how many. Is there a package for it in debian? Or do I have to install something else. Thanks in advance, Rud

Re: detecting portscanning

2001-05-24 Thread Tim Uckun
>The problem with portsentry is that it binds to all the ports you are >watching, so people that are scanning actually see those ports open. It is >better to use snort, which will let you know that the scans have happened >without the attacker being aware. Although it binds to all the ports port

Re: detecting portscanning

2001-05-24 Thread Peter Hicks
On Thursday 24 May 2001 14:01, Rudy Gevaert wrote: > On Thu, 24 May 2001, Rudy Gevaert wrote: > > Hello again, > > Some people suggested ippl, I installed it, and it runs. It works :-) > > Some other people, said I should use portsentry. And I look for it on the > website, and it is a tar.gz fil

Re: detecting portscanning

2001-05-24 Thread Rudy Gevaert
On Thu, 24 May 2001, Rudy Gevaert wrote: Hello again, Some people suggested ippl, I installed it, and it runs. It works :-) Some other people, said I should use portsentry. And I look for it on the website, and it is a tar.gz file, but in the unstable section I can find a deb file. But I'm us

detecting portscanning

2001-05-24 Thread Rudy Gevaert
Hello Everyone, It is my first time i'm putting up a server (at home, cable modem) with ftp/ssh/apache on it. Now I would like to know who does portscans on my machine, and when. And how many. Is there a package for it in debian? Or do I have to install something else. Thanks in advance, Ru