my ISP won''t open port 1433

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my ISP won''t open port 1433

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K. Brian Kelley SSC Guru Points: 114642 More actions · Answer 1

If they are worried about Slammer, this should serve as a rude awakening to them that they've got it all wrong:

Symantec write-up

McAfee write-up

F-Secure write-up

Study on why it spread so fast:

The Spread of the Sapphire/Slammer Worm

K. Brian Kelley
@kbriankelley

K. Brian Kelley SSC Guru Points: 114642 More actions · Answer 2

Here's another one, from Cisco:

Cisco SAFE SQL Slammer Worm Attack Mitigation

This document contains the following statement:

The most effective method to contain this worm is the application of ingress and egress filters or access control lists (ACLs) blocking port 1434 UDP.

K. Brian Kelley
@kbriankelley

john-209445 SSChasing Mays Points: 600 More actions · Answer 3

Thanks Brian, and everyone else for your help on this issue.

I threw everything i had at them, and they won't open port 1433 tcp. I submitted all the documentation above and explained how 1433 was not affected by slammer virus and at first they refused to open the email. After a few minutes of arguing, i was able to get to a very helpful level 2 technician, and he took the documentation and went to the Administrator. I don't think the admin even read it. Didn't take but a few min for the level 2 to come back and tell me "no" again.

Their latest reason was that they just got hit in 3 school districts on port 1433 and that there is no way it be opened.

Unfortunately, they are the only ISP i can use. So it seems like i'm going to have to move all clients into a dedicated|managed hosting solution so that i can use VPN to bypass the bureaucracy.

.

K. Brian Kelley SSC Guru Points: 114642 More actions · Answer 4

Talk to the guys here at SSC. They might be able to point you in the right direction.

K. Brian Kelley
@kbriankelley