RE: NAT, Internet access and security

2002-01-14 Thread Johnson, Wayne
PROTECTED]] Sent: Wednesday, January 09, 2002 8:33 PM To: Bourque Daniel; [EMAIL PROTECTED] Subject: Re: NAT, Internet access and security Bourque Daniel wrote: Normally, you want your FW to be as invisible as possible (black hole) so you just drop all incoming packet that are not specifically allowed

RE: NAT, Internet access and security

2002-01-10 Thread Thomas M. Welch
. -Tom -Original Message- From: Kartik Trivedi [mailto:[EMAIL PROTECTED]] Sent: Tuesday, January 08, 2002 5:05 AM To: irado furioso com tudo Cc: [EMAIL PROTECTED] Subject: Re: NAT, Internet access and security hey guys, Any idea how can i run an FTP server behind a NAT. I share DSL

RE: NAT, Internet access and security

2002-01-10 Thread Nick
d'origine- De: irado furioso com tudo [mailto:[EMAIL PROTECTED]] Date: 8 janvier, 2002 04:31 Cc: [EMAIL PROTECTED] Objet: Re: NAT, Internet access and security I had heard that it is better to have a 'reject' rule instead of a 'deny' one, as reject will give back an immediate reply

RE: NAT, Internet access and security

2002-01-09 Thread Bourque Daniel
, Internet access and security I had heard that it is better to have a 'reject' rule instead of a 'deny' one, as reject will give back an immediate reply to the interrogator, while just rejecting the query can give you a multitude of 'retry', which can eat you bandwidth with lots and lots

Re: NAT, Internet access and security

2002-01-08 Thread emilyaanderson
In-Reply-To: 002501c19799$c960$fdfea8c0@ISDesktop Nothing is completely fool prof or completely invulnerable and there are quite a few web servers out there that do not have a firewall. A firewall is there only to set up another layer of defense. The other layers are to limit the

Re: NAT, Internet access and security

2002-01-08 Thread irado furioso com tudo
I had heard that it is better to have a 'reject' rule instead of a 'deny' one, as reject will give back an immediate reply to the interrogator, while just rejecting the query can give you a multitude of 'retry', which can eat you bandwidth with lots and lots of retries. If possible, can

Re: NAT, Internet access and security

2002-01-08 Thread Kartik Trivedi
tudo [EMAIL PROTECTED] Cc: [EMAIL PROTECTED] Sent: Monday, January 07, 2002 3:46 AM Subject: Re: NAT, Internet access and security surelly, I am missing something. In a widely open network as this, how can it be secure ?? Iain McAleer wrote: Hey guys, To be honest, if your system is secure

Re: NAT, Internet access and security

2002-01-08 Thread irado furioso com tudo
IMHO, it is better to have the latest OpenSSH running, wich carry little secure things like scp (secure copy) and sftp (secureFTP). Kartik Trivedi wrote: hey guys, Any idea how can i run an FTP server behind a NAT. I share DSL connection with my roommates using a router. But i want to

Re: NAT, Internet access and security

2002-01-07 Thread John Spencer
Here is a suggestion for basic firewall setup: Always have a base rule or policy that is set to deny or drop any source to any destination using any service/port. Then add rules or policies above the basic deny policy (typically referred to as a stealth rule) to specifically allow only the

Re: NAT, Internet access and security

2002-01-07 Thread irado furioso com tudo
surelly, I am missing something. In a widely open network as this, how can it be secure ?? Iain McAleer wrote: Hey guys, To be honest, if your system is secure a firewall is redundant. I am aware of a company here in Perth that is part of a multi-million dollar corporation. They have

RE: NAT, Internet access and security

2002-01-07 Thread Keith T. Morgan
management and monitoring, end user education etc... will eventually lead to a compromise. -Original Message- From: keith royster [mailto:[EMAIL PROTECTED]] Sent: Sunday, January 06, 2002 5:08 PM To: Iain McAleer Cc: Gilles Poiret; [EMAIL PROTECTED] Subject: Re: NAT, Internet access and security

Re: NAT, Internet access and security

2002-01-07 Thread Nick
I was under the impression that the stealth rule was to have anything going directly to your Firewall dropped, therefore making your FW's addess a black hole. It never answers anything, except what you specifically allow for management purposes. The rule you describe was always referred to as a

Re: NAT, Internet access and security

2002-01-06 Thread Iain McAleer
, January 03, 2002 8:14 PM Subject: Re: NAT, Internet access and security Hello, Most of answers I received suggest me to set up a firewall. (My router seems to have this ability.) But a firewall to block what ? Excepted for the router, computers can't be to uch from outside of the LAN, since

Re: NAT, Internet access and security

2002-01-04 Thread Gilles Poiret
Hello, Most of answers I received suggest me to set up a firewall. (My router seems to have this ability.) But a firewall to block what ? Excepted for the router, computers can't be to uch from outside of the LAN, since they have private adresses. The most important risk seems to be about

NAT, Internet access and security

2001-12-30 Thread Gilles Poiret
Hello, I plan to give my company access to Internet. My ISP propose me partial-time access (20h) on a RNIS solution, with a router, a single IP address (dynamic), so using private addresses for computers on my LAN. This offer doesn't include security stuff (excepted for e-mails). So I'm