Re: sshd brute force attempts?

2006-09-20 Thread Adam Martin
On 2006 Sep 19 , at 17:25, Nicolas Blais wrote: On Tuesday 19 September 2006 17:12, Joao Barros wrote: On 9/19/06, Dan Mahoney, System Admin <[EMAIL PROTECTED]> wrote: Hey all, I've looked around and found several linux-centric things designed to block brute-force SSH attempts. Anyone out t

Re: sshd brute force attempts?

2006-09-20 Thread backyard
--- "Dan Mahoney, System Admin" <[EMAIL PROTECTED]> wrote: > On Tue, 19 Sep 2006, backyard wrote: > > > In reality using passwords with SSH kinda defeats > the > > purpose of SSH. > > Keeping passwords from being sent across the network > as cleartext? > > -Dan ssh will encrypt them of cours

Re: sshd brute force attempts?

2006-09-20 Thread Dan Mahoney, System Admin
On Wed, 20 Sep 2006, Erik Norgaard wrote: Dan Mahoney, System Admin wrote: On Tue, 19 Sep 2006, Erik Norgaard wrote: Along with some good advice. First of all: ssh is not a public service like http or smtp where you need anyone to be able to connect. So don't let them in the first place. I

Re: sshd brute force attempts?

2006-09-20 Thread Erik Norgaard
Elijah Savage wrote: Joao Barros wrote: I'm using BruteForceBlocker quite successfully. I take the opportunity to thank danger for it :-) http://www.freshports.org/security/bruteforceblocker/ I use /usr/ports/security/denyhost It was very easy to install and setup the config file is commente

Re: sshd brute force attempts?

2006-09-20 Thread Pietro Cerutti
Elijah Savage wrote: another vote for denyhost. it works well and stops the attacks. Even tho i use keys and not passwords, i still use it. just a DITTO great piece of soft! -- Pietro Cerutti ICQ: 117293691 PGP: 0x9571F78E - ASCII Ribbon Campaign - against HTML e-mail and proprietary attac

Re: sshd brute force attempts?

2006-09-20 Thread Eric
Elijah Savage wrote: > Joao Barros wrote: >> On 9/19/06, Dan Mahoney, System Admin <[EMAIL PROTECTED]> wrote: >>> Hey all, >>> >>> I've looked around and found several linux-centric things designed to >>> block brute-force SSH attempts. Anyone out there know of something a >>> bit >>> more BSD sav

Re: sshd brute force attempts?

2006-09-20 Thread Elijah Savage
Joao Barros wrote: On 9/19/06, Dan Mahoney, System Admin <[EMAIL PROTECTED]> wrote: Hey all, I've looked around and found several linux-centric things designed to block brute-force SSH attempts. Anyone out there know of something a bit more BSD savvy? My best attempt will be to get this: h

Re[2]: sshd brute force attempts?

2006-09-20 Thread Daniel Gerzo
Hello Joao, Tuesday, September 19, 2006, 11:12:37 PM, you wrote: > On 9/19/06, Dan Mahoney, System Admin <[EMAIL PROTECTED]> wrote: >> Hey all, >> >> I've looked around and found several linux-centric things designed to >> block brute-force SSH attempts. Anyone out there know of something a bit

Re: sshd brute force attempts?

2006-09-20 Thread Erik Norgaard
Dan Mahoney, System Admin wrote: On Tue, 19 Sep 2006, Erik Norgaard wrote: Along with some good advice. First of all: ssh is not a public service like http or smtp where you need anyone to be able to connect. So don't let them in the first place. It is in this case. It's a web server that a

Re: sshd brute force attempts?

2006-09-19 Thread Matthew Seaman
Peter N. M. Hansteen wrote: > "Dan Mahoney, System Admin" <[EMAIL PROTECTED]> writes: > >> I've found a few things based on openBSD's pf, but that doesn't seem to be >> the default in BSD either. > > Recent BSDs (all of them, FreeBSD 5.n/6.n included) have PF in the base > system. > 'overload'

Re: sshd brute force attempts?

2006-09-19 Thread Peter N. M. Hansteen
"Dan Mahoney, System Admin" <[EMAIL PROTECTED]> writes: > I've found a few things based on openBSD's pf, but that doesn't seem to be > the default in BSD either. Recent BSDs (all of them, FreeBSD 5.n/6.n included) have PF in the base system. 'overload' rules are fairly easy to set up, eg table

Re: sshd brute force attempts?

2006-09-19 Thread Chuck Swiger
On Sep 19, 2006, at 3:38 PM, Darrin Chandler wrote: I think this isn't needed, and is somewhat silly. Like all (decent) implementations of pubkey, the key is only used to authenticate and exchange a symetric session key. So the pubkey sees little actual use, compared with the session key. Anyone

Re: sshd brute force attempts?

2006-09-19 Thread Darrin Chandler
On Tue, Sep 19, 2006 at 02:22:41PM -0700, backyard wrote: > > well you could pretty much eliminate the problem by > disabling password logins to sshd and only accepting > keyed logins. Then only a key will work. This is probably the best thing you can do to keep the bad guys out. This is what I'm

Re: sshd brute force attempts?

2006-09-19 Thread Dan Mahoney, System Admin
On Tue, 19 Sep 2006, backyard wrote: In reality using passwords with SSH kinda defeats the purpose of SSH. Keeping passwords from being sent across the network as cleartext? -Dan -- "Of course she's gonna be upset! You're dealing with a woman here Dan, what the hell's wrong with you?" -S.

Re: sshd brute force attempts?

2006-09-19 Thread Dan Mahoney, System Admin
On Tue, 19 Sep 2006, Erik Norgaard wrote: Along with some good advice. First of all: ssh is not a public service like http or smtp where you need anyone to be able to connect. So don't let them in the first place. It is in this case. It's a web server that allows shell usage (and encourages

Re: sshd brute force attempts?

2006-09-19 Thread Reko Turja
I've looked around and found several linux-centric things designed to block brute-force SSH attempts. Anyone out there know of something a bit more BSD savvy? I've found a few things based on openBSD's pf, but that doesn't seem to be the default in BSD either. Any response appreciated.

Re: sshd brute force attempts?

2006-09-19 Thread Erik Norgaard
Dan Mahoney, System Admin wrote: Hey all, I've looked around and found several linux-centric things designed to block brute-force SSH attempts. Anyone out there know of something a bit more BSD savvy? My best attempt will be to get this: http://www.csc.liv.ac.uk/~greg/sshdfilter/index_15.h

Re: sshd brute force attempts?

2006-09-19 Thread David King
I've looked around and found several linux-centric things designed to block brute-force SSH attempts. Anyone out there know of something a bit more BSD savvy? I'm a fan of security/sshit My best attempt will be to get this: http://www.csc.liv.ac.uk/~greg/sshdfilter/index_15.html runni

Re: sshd brute force attempts?

2006-09-19 Thread Nicolas Blais
On Tuesday 19 September 2006 17:12, Joao Barros wrote: > On 9/19/06, Dan Mahoney, System Admin <[EMAIL PROTECTED]> wrote: > > Hey all, > > > > I've looked around and found several linux-centric things designed to > > block brute-force SSH attempts. Anyone out there know of something a bit > > more

Re: sshd brute force attempts?

2006-09-19 Thread Lowell Gilbert
"Joao Barros" <[EMAIL PROTECTED]> writes: > On 9/19/06, Dan Mahoney, System Admin <[EMAIL PROTECTED]> wrote: >> Hey all, >> >> I've looked around and found several linux-centric things designed to >> block brute-force SSH attempts. Anyone out there know of something a bit >> more BSD savvy? >> >>

Re: sshd brute force attempts?

2006-09-19 Thread backyard
--- "Dan Mahoney, System Admin" <[EMAIL PROTECTED]> wrote: > Hey all, > > I've looked around and found several linux-centric > things designed to > block brute-force SSH attempts. Anyone out there > know of something a bit > more BSD savvy? > > My best attempt will be to get this: > > http

Re: sshd brute force attempts?

2006-09-19 Thread Joao Barros
On 9/19/06, Dan Mahoney, System Admin <[EMAIL PROTECTED]> wrote: Hey all, I've looked around and found several linux-centric things designed to block brute-force SSH attempts. Anyone out there know of something a bit more BSD savvy? My best attempt will be to get this: http://www.csc.liv.ac.u

sshd brute force attempts?

2006-09-19 Thread Dan Mahoney, System Admin
Hey all, I've looked around and found several linux-centric things designed to block brute-force SSH attempts. Anyone out there know of something a bit more BSD savvy? My best attempt will be to get this: http://www.csc.liv.ac.uk/~greg/sshdfilter/index_15.html running and adapt it. I've f