That depends. What kind of firewall is this? If it is simply a
packet-filtering firewall, anything can pass through on port 80. If it is an
application-layer gateway, only properly formatted HTTP traffic will be able to
pass through. However, even if you have an ALG, it is still possible to tunnel
other traffic through HTTP.
-Ryan
[EMAIL PROTECTED] wrote:
> If I've opened up port 80 on a firewall, does this mean that ONLY HTTP
> traffic can pass through, or can anything that's configured to use port 80,
> can pass through?
>
> Please advise
>
> Simon
>
> **********************************************************************
> If you are not the intended recipient of this e-mail and have received it
> in error, you are on notice that the e-mail and any attached files are
> confidential. Please notify us immediately by reply e-mail and then delete
> this message from your system. Please do not use, distribute, copy or
> take any action in reliance on it as to do so could be a breach
> of confidence. The sender does not accept any responsibility for any
> loss, disruption or damage to your data or computer system which may occur
> whilst using data contained in, or transmitted with, this e-mail. Thank
> you for your co-operation. If you need assistance, please contact
> Maritz Ltd - tel.: +44 (0)1628 486011 or e-mail: [EMAIL PROTECTED]
> **********************************************************************
> -
> [To unsubscribe, send mail to [EMAIL PROTECTED] with
> "unsubscribe firewalls" in the body of the message.]
-
[To unsubscribe, send mail to [EMAIL PROTECTED] with
"unsubscribe firewalls" in the body of the message.]
