RE: [SLUG] CAN-2004-1137

2004-12-29 Thread hilton de meillon
Ok no problem. 

Apologies to all.



-Original Message-
From: Ken Foskey [mailto:[EMAIL PROTECTED] 
Sent: Thursday, 30 December 2004 1:27 PM
To: hilton de meillon
Subject: Re: [SLUG] CAN-2004-1137

On Thu, 2004-12-30 at 12:07 +1000, hilton de meillon wrote:
> Hi All,
> 
> Can anyone tell me why not many distros have an update for the 
> CAN-2004-1137 (among other kernel vulnerabilities) yet ?.

Please do not use Reply to create a new thread.  It really stuffs up
threading and people may ignore your message due as they are not interested
in the specific thread.

Regarding your question,  I would help but I have no idea.

--
Ken Foskey
OpenOffice.org developer



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RE: [SLUG] Re: sshd config: tighten access ?

2004-12-29 Thread hilton de meillon
Hey all,

I just read a nice article at fedora news re: tightening sshd security. 

http://www.fedoranews.org/contributors/richard_flude/ssh/

You can increase sshd security by using the AllowUsers  directive.
This will only allow said users the possibility to login via ssh.

Cheers,

Hilton. 

-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf
Of Matthew Palmer
Sent: Thursday, 30 December 2004 12:20 PM
To: slug@slug.org.au
Subject: [SLUG] Re: sshd config: tighten access ?

On Thu, Dec 30, 2004 at 01:01:04PM +1100, Voytek wrote:
> Dec 30 10:48:24 koala sshd[30111]: Failed password for illegal user 
> guest from 6 4.174.136.250 port 2433 ssh2
> 
> what should I do to increase security ?

Disconnect your machine from the Internet.

> 99% of the time, I'm the sole user accessing via ssh, ocassionally, I 
> temporarily allow someone else.
> 80% of the time, I ssh from a fixed IP, rest of the time, I ssh from 
> several Aussie ISP dislups/adsl
> 
> is it worthwile to scan logs and block these ips temporarily ?

By the time you find 'em and block 'em, they're gone.

> is it easy to add such IPs to my ipchains ?

Sure, if you really, really want to.  ipchains -A input -s  -j DROP or
whatever ipchains wants.

I've heard tell that changing the port that your local SSH listens on to
something non-obvious ( is right out for that reason) can drop your
received scan rate significantly.  I couldn't be arsed, and since my
machines typically run passwordless these days (as in
AllowPasswordAuthentication no) they can guess my private key all day, every
day, and I'm not going to be overly worried.

- Matt


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[SLUG] CAN-2004-1137

2004-12-29 Thread hilton de meillon
Hi All,

Can anyone tell me why not many distros have an update for the CAN-2004-1137
(among other kernel vulnerabilities) yet ?. 

Ubuntu, Redhat, SuSe have updated kernels but pretty much all the rest do
not have an updated kernel for this issue. 

Secondly would 'iptables -A INPUT -p IGMP -j REJECT' protect my machine from
remote attacks ?.

I tried this rule and then ran the proof of concept exploit from
http://www.securityfocus.com/bid/11917/solution/ and it still crashed my
(slackware) machine. I am assuming that it connects over a unix socket or
exploits one of the non-networked vulnerabilities as according to secfocus
there are three actual vulnerabilities contained in this vulnerability.

Lastly I would have to say that this is a bit of a shocker for the linux
community, this vulnerability could be used with devastating effect, I am a
bit disappointed with linux in this regard.

Any comments appreciated.



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[SLUG] ifolder & tarpit

2004-12-27 Thread hilton de meillon
Hey All,

Has anyone ever got ifolder working on linux ?. I am seeking a program that
can sync data between multiple hosts in a secure manner with a master /
slave relationship (other than rsync and ssh).

Has anyone ever got the TARPIT destination working or has anyone had a
chance to play with it ?. I want to get it wokring on my slack box but I do
not want to recompile my kernel as then future kernel updates require more
work, etc and am trying to gauge if it is worth it ?

Any ideas ?

Hilton.


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RE: [SLUG] SSL certificates portable ?

2004-09-14 Thread hilton de meillon
Hi all,

I just spoke to a support at instantssl.com and they reckon you can create a
csr on a win/iis box and 
Install the resultant certificate on an linux/apache box.

 

-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf
Of Jamie Wilkinson
Sent: Wednesday, 15 September 2004 1:49 PM
To: [EMAIL PROTECTED]
Subject: Re: [SLUG] SSL certificates portable ?

This one time, at band camp, Hilton De Meillon wrote:
>Are SSL certificates portable ?. I want to generate a CSR  on a IIS 
>machine and use it to produce a certificate that will be used on an 
>Linux/Apache 1.3.12-12 box (obviously with the correct fqdn ,etc)

The SSL cert vendor takes the CSR in text format, and the certificate / key
pair are also text files, so it will work.

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[SLUG] SSL certificates portable ?

2004-09-14 Thread Hilton De Meillon
Hi All,


Are SSL certificates portable ?. I want to generate a CSR  on a IIS machine
and use it to produce a certificate that
will be used on an Linux/Apache 1.3.12-12 box (obviously with the correct
fqdn ,etc)

Is that possible ?

Regards,

Hilton.

 
 

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[SLUG] replicating quota info

2004-07-05 Thread Hilton De Meillon
Hi All,

thanks to all for your replies to my previous post. My next hurdle is a
big one- how can I replicate quota information from one host/volume to
another host/volume ??

Hilton.
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[SLUG] umask and useradd

2004-07-05 Thread Hilton De Meillon
Hi All,

I want to sync a filesystem over rsync/ssh. the filesystem is /home. I
do not want to use the root user to sync this filesystem. 

How can I set the system up so that I can sync using a normal user that
has access to all home directories without having to constantly chown
and chmod the /homedirectories to grant access to this normal user ?.

I was thinking umask but does useradd use umask ?

Any suggestions would be appreciated.

Hilton.

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[SLUG] firewall logfile analysis

2004-02-20 Thread Hilton De Meillon
Hey All,

I am using Gentoo. I use Metalog as a logger. I use Fwbuilder to design
my rulesets. What can I use to analyse my log files - I have tried
fwanalog but it does not look like it likes the way Metalog logs. 

any recommendations ?

Hilton.


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