Re: [expert] finding security holes

2003-03-09 Thread Todd Lyons
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1

Jim C wrote on Sat, Mar 08, 2003 at 10:53:52AM -0800 :
 Short form: There is no way provided to turn html off, as far as I can 
 tell, in Netscape 7.0.  No check box and no known means of doing so by 
 inserting comments anywhere in the system.

Install demime and filter all inbound mail through it.  google for
demime and it should come up with something like scifi.squawk.com or
close to it.

Blue skies...   Todd
- -- 
| MandrakeSoft USA | Security is like an onion.  It's made |
| http://www.mandrakesoft.com  | made up of several layers and makes   |
| http://www.mandrakelinux.com | you cry.  --Howard Chu|
  Mandrake Cooker Devel Version, Kernel 2.4.21-0.12mdk
-BEGIN PGP SIGNATURE-
Version: GnuPG v1.2.1 (GNU/Linux)

iD8DBQE+bB4ulp7v05cW2woRAjsQAKCoHs1sMc+whrMbr9rOfuVTS9rNrwCeLCGU
bZGeApIIMIbwKYtOi0Fw0k8=
=A6OV
-END PGP SIGNATURE-

Want to buy your Pack or Services from MandrakeSoft? 
Go to http://www.mandrakestore.com


Re: [expert] finding security holes

2003-03-08 Thread Jim C
Great.  Now if there just were a way to avoid vewing it in Netscape 7.0. :-/

I'm very sorry!!! I didn't know that i was writting messages in html. I've
...
It isn't difficult to modify Outlook Express to disable HTML (which is enabled 
by default). Tools-Options-Send-Mail Sending Format



Want to buy your Pack or Services from MandrakeSoft? 
Go to http://www.mandrakestore.com


Re: [expert] finding security holes

2003-03-08 Thread engage
There is. Use an e-mail program that has filters. 

On Saturday 08 March 2003 10:08 am, Jim C wrote:
 Great.  Now if there just were a way to avoid vewing it in Netscape 7.0.
 :-/

 I'm very sorry!!! I didn't know that i was writting messages in html.
  I've

 ...

  It isn't difficult to modify Outlook Express to disable HTML (which is
  enabled by default). Tools-Options-Send-Mail Sending Format


Want to buy your Pack or Services from MandrakeSoft? 
Go to http://www.mandrakestore.com


Re: [expert] finding security holes

2003-03-08 Thread Jim C
Netscape 7.0 does have filters and I employ them in concert with 
SpamPal. What it doesn't have is the ability to add:
!-- to the beginning and -- to the end of any file that contains 
HTML or html etc.  I don't want to eliminate the mail all together 
because I do occasionally get html messages I want to view.  I just want 
viewing it turned off by default.

engage wrote:
There is. Use an e-mail program that has filters. 



Want to buy your Pack or Services from MandrakeSoft? 
Go to http://www.mandrakestore.com


[Fwd: Re: [expert] finding security holes]

2003-03-08 Thread Jim C
Netscape 7.0 does have filters and I employ them in concert with
SpamPal. What it doesn't have is the ability to add:
!-- to the beginning and -- to the end of any file that contains
HTML or html etc.  I don't want to eliminate the mail all together
because I do occasionally get html messages I want to view.  I just want
viewing it turned off by default.
engage wrote:
 There is. Use an e-mail program that has filters.



Want to buy your Pack or Services from MandrakeSoft? 
Go to http://www.mandrakestore.com


Re: [Fwd: Re: [expert] finding security holes]

2003-03-08 Thread Jim C
Whoops. Double wammy!  Sorry.

Jim C wrote:
Netscape 7.0 does have filters and I employ them in concert with



Want to buy your Pack or Services from MandrakeSoft? 
Go to http://www.mandrakestore.com


Re: [expert] finding security holes

2003-03-08 Thread Anne Wilson
On Saturday 08 Mar 2003 5:50 pm, Jim C wrote:
 Netscape 7.0 does have filters and I employ them in concert with
 SpamPal. What it doesn't have is the ability to add:
 !-- to the beginning and -- to the end of any file that contains
 HTML or html etc.  I don't want to eliminate the mail all together
 because I do occasionally get html messages I want to view.  I just want
 viewing it turned off by default.

 engage wrote:
  There is. Use an e-mail program that has filters.

I'm not sure I understand your problem.  FWIW, though, KMail displays the 
plain text version of a dual-mode send if you have the html turned off.  Is 
there nothing similar you can do in Netscape?

Anne
-- 
Registered Linux User No.293302


Want to buy your Pack or Services from MandrakeSoft? 
Go to http://www.mandrakestore.com


Re: [expert] finding security holes

2003-03-08 Thread Jim C
Short form: There is no way provided to turn html off, as far as I can 
tell, in Netscape 7.0.  No check box and no known means of doing so by 
inserting comments anywhere in the system.

I'm not sure I understand your problem.  FWIW, though, KMail displays the 
plain text version of a dual-mode send if you have the html turned off.  Is 
there nothing similar you can do in Netscape?



Want to buy your Pack or Services from MandrakeSoft? 
Go to http://www.mandrakestore.com


Re: [expert] finding security holes

2003-03-08 Thread Vincent Danen
On Fri Mar 07, 2003 at 11:49:06PM -0300, Leonardo wrote:

 I'm very sorry!!! I didn't know that i was writting messages in html. I've
 had some problems with my home mdk box so i'm using (unfortunately) outlook.
 I'll try to figure out if there's any option that can disable the html
 format on e-mail messages.
 
 Anyway, thanks for the answer.I can't afford a machine just for firewall...
 I'll try to install chrootkit and some tools that i recently discovered
 (tripwire, nmap and snort). If you, or anyone, knows urls of docs about
 those, please tell me (but i think google is the faster and the best way to
 find docs).

You can also fine a lot of info on http://www.mandrakesecure.net/ including
tutorials, links, and a listing of tools for a variety of purposes.

-- 
MandrakeSoft Security; http://www.mandrakesecure.net/
Online Security Resource Book; http://linsec.ca/
lynx -source http://linsec.ca/vdanen.asc | gpg --import
{FE6F2AFD : 88D8 0D23 8D4B 3407 5BD7  66F9 2043 D0E5 FE6F 2AFD}


pgp0.pgp
Description: PGP signature


[expert] finding security holes

2003-03-07 Thread Leonardo



i've just finished setting up a mdk9.0 server with 
postfix, mailman, iptables and apache. Things are going fine, but I would like 
to know how can I detect any security breaches on my system to prevent possible 
hackerinvasions. I've been using the netstat command but there should be 
others...

Thanks in advance,
Leonardo Sá
Recife, Brazil


Re: [expert] finding security holes

2003-03-07 Thread civileme
On Friday 07 March 2003 02:23 pm, Leonardo wrote:
 i've just finished setting up a mdk9.0 server with postfix, mailman,
 iptables and apache. Things are going fine, but I would like to know how
 can I detect any security breaches on my system to prevent possible hacker
 invasions. I've been using the netstat command but there should be
 others...

 Thanks in advance,
 Leonardo Sá
 Recife, Brazil

Well your html messages aren't going to get too many answers, cause most folks 
filter them out.  I occasionally scan my trash for list messages, so I saw 
yours.

What you want is to sign up for the security advirories list and stay updated.

If you want a real firewall put it on a machine between you and the net 
connection.  MNF, which is free to download does a wonderful job, and still 
allows you to forward ports your server uses to the server.

Nothing like Norton's Personal Firewall exists which will notify you about 
regular net traffic (remember personal firewall will claim an ftp connection 
on port 21 is the WinCrash trojan cause it sometimes also uses port 21).

You can activate prelude and watch the logs, and you can load chkrootkit, and 
you can compile the kernel specifically for your machine with all modules 
compiled in and none loading, which helps proof against rootkits, but 
remember linux is by nature much much more secure than the best lockdown you 
can put on windows.

Civileme


Want to buy your Pack or Services from MandrakeSoft? 
Go to http://www.mandrakestore.com


Re: [expert] finding security holes

2003-03-07 Thread Leonardo
I'm very sorry!!! I didn't know that i was writting messages in html. I've
had some problems with my home mdk box so i'm using (unfortunately) outlook.
I'll try to figure out if there's any option that can disable the html
format on e-mail messages.

Anyway, thanks for the answer.I can't afford a machine just for firewall...
I'll try to install chrootkit and some tools that i recently discovered
(tripwire, nmap and snort). If you, or anyone, knows urls of docs about
those, please tell me (but i think google is the faster and the best way to
find docs).

Cheers,

Leonardo Sá

- Original Message -
From: civileme [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Friday, March 07, 2003 11:10 PM
Subject: Re: [expert] finding security holes


 On Friday 07 March 2003 02:23 pm, Leonardo wrote:
  i've just finished setting up a mdk9.0 server with postfix, mailman,
  iptables and apache. Things are going fine, but I would like to know how
  can I detect any security breaches on my system to prevent possible
hacker
  invasions. I've been using the netstat command but there should be
  others...
 
  Thanks in advance,
  Leonardo Sá
  Recife, Brazil

 Well your html messages aren't going to get too many answers, cause most
folks
 filter them out.  I occasionally scan my trash for list messages, so I saw
 yours.

 What you want is to sign up for the security advirories list and stay
updated.

 If you want a real firewall put it on a machine between you and the net
 connection.  MNF, which is free to download does a wonderful job, and
still
 allows you to forward ports your server uses to the server.

 Nothing like Norton's Personal Firewall exists which will notify you about
 regular net traffic (remember personal firewall will claim an ftp
connection
 on port 21 is the WinCrash trojan cause it sometimes also uses port 21).

 You can activate prelude and watch the logs, and you can load chkrootkit,
and
 you can compile the kernel specifically for your machine with all modules
 compiled in and none loading, which helps proof against rootkits, but
 remember linux is by nature much much more secure than the best lockdown
you
 can put on windows.

 Civileme









 Want to buy your Pack or Services from MandrakeSoft?
 Go to http://www.mandrakestore.com






Want to buy your Pack or Services from MandrakeSoft? 
Go to http://www.mandrakestore.com


Re: [expert] finding security holes

2003-03-07 Thread engage
On Friday 07 March 2003 07:10 pm, civileme wrote:

 You can activate prelude and watch the logs, and you can load chkrootkit,
 and you can compile the kernel specifically for your machine with all
 modules compiled in and none loading, which helps proof against rootkits,
 but remember linux is by nature much much more secure than the best
 lockdown you can put on windows.


How does one add pelude to the system logs in Webmin?



Want to buy your Pack or Services from MandrakeSoft? 
Go to http://www.mandrakestore.com


Re: [expert] finding security holes

2003-03-07 Thread engage
On Friday 07 March 2003 07:49 pm, Leonardo wrote:
 I'm very sorry!!! I didn't know that i was writting messages in html. I've
 had some problems with my home mdk box so i'm using (unfortunately)
 outlook. I'll try to figure out if there's any option that can disable the
 html format on e-mail messages.


It isn't difficult to modify Outlook Express to disable HTML (which is enabled 
by default). Tools-Options-Send-Mail Sending Format





Want to buy your Pack or Services from MandrakeSoft? 
Go to http://www.mandrakestore.com