[olug] Question about cox.....=D

[Ken]

> 
> From: Phil Brutsche <phil at brutsche.us>
> Date: 2004/03/15 Mon PM 04:23:26 EST
> To: Omaha Linux User Group <olug at olug.org>
> Subject: Re: [olug] Question about cox.....=D
> 
> Sean Edwards wrote:
> 
> > The only port I have found Cox to block is 80.
> 
> They also block the Windows networking ports (135, 137-139, 445) + some 
> other stuff.

Blocked ports:

Port  	Transport  	Protocol  	Direction  	Reason for Filtering
25 	TCP 	SMTP 	Both* 	SMTP Relays
80 	TCP 	HTTP 	Inbound 	Web servers, worms
135 	UDP 	NetBios 	Both 	Net Send Spam/Pop-ups, Worms
135 	TCP 	NetBios 	Incoming 	Net Send Spam/Pop-ups, Worms
136-139 	UDP, TCP 	NetBios 	Both 	Worms, Network Neighhood
445 	TCP 	MS-DS/NetBios 	Both 	Worms, Network Neighhood
1433 	TCP 	MS-SQL 	Inbound 	Worms, Trojans
1434 	UDP 	MS-SQL 	Inbound 	Worms, SQLslammer
1900 	UDP 	MS-DS/NetBios 	Both 	Worms, Network Neighhood
27374 	TCP 	Subseven 	Both 	SubSeven Trojan

*SMTP is only permitted outbound to Cox-provided SMTP servers

http://support.cox.net/custsup/safety/port_blocking.shtml