 鲜花( 87)  鸡蛋( 1)
|
之前发过一个帖子有关Telus, Shaw 的比较, : W/ ^! g" d: T3 U- s6 _
家用Telus 已经封锁了不少端口。 也随时不通知下说锁就锁, 非常讨厌。% X* ~, a7 Z% @. i7 H% d
9 m- v* ^6 Q* Q% W: P3 n
Does Telus block any ports? 0 a: g) E; Q3 o
( e: P* ]: D L5 l' lThe only packages with no blocked ports at this time are the Server packages. % r/ e- K2 u4 |: j& I' ?9 j
4 Y$ Z+ ]) w# g! j- sThe Blocked ports currently are:+ m! y: Q; l% P- l
: Y( f2 B* m5 S; r4 k, Y A, ]; ETCP 21 (ftp)1 m& J+ i& o& r" y+ Q# G! A- s
Customers running an FTP server will no longer be able to have Internet users connect to their server. Many customers computers are used as FTP servers to store illegal files./ D2 l$ B# J. f0 \3 J. f
' ?2 z# `& m4 r. ^TCP 25 (smtp)
5 O+ i, u( |4 T i3 pCustomers running a SMTP mail server will no longer be able to receive email requests. Also, Telus users will not be able to connect to non-Telus smtp servers on port 25. Prevent mail servers that operate as an open relay. Open relays are used without a customer?s knowledge to sends millions of pieces of Spam.
1 N7 ?# [. e% L0 |3 O# b* i; t) X9 I% Z
TCP 80 (www)8 {. l! ?# Q8 T& m/ f4 D
Customers running a Web server will no longer be able to have Internet users connect to their server. Common exploit on old Window IIS server and Linux boxes that are not properly patched. {' v) h3 w5 k2 Z' j4 U6 O4 c- B
f& f; T7 b: P2 k4 T/ N ~
TCP 110 (pop3) H J6 ]: K3 J' E8 t
Customers running a POP mail server will no longer be able to have Internet users connect to the server. Prevent mail servers that operate as an open relay. Open relays are used without a customer?s knowledge to sends millions of pieces of Spam.
8 B) S, m3 b' L! O4 d2 n, d' Y
+ L j9 x6 I! F6 Y6 P3 N8 ATCP 6667 (ircd)$ b5 R% U; S) P1 U& ?4 Z: c; t
Customers running a IRC server (Internet Relay Chat) will no longer be able to have Internet users connect to the server.( r: |( ], b8 Q) D' g" m
& [- ?+ n% S. U, E& y+ N! uTCP/UDP 135-139 (dcom and netbios)6 m: ^, l' ?3 W" e% Y
These ports are commonly exploited by worm viruses: B. o! X3 n. r' u& c0 ?
135 Windows RPC# f1 \ s; `9 ]4 ^
136 PROFILE Naming System (basically unused): K6 N) x- ^+ q+ J' _9 J/ Q( _
137-139 Windows NetBios
# Z$ Z* h2 N% V! r0 f
- |5 J8 E4 n4 I$ oTCP/UDP 445 (ms-ds)
( g8 n: c' T/ Z7 J, o+ _Microsoft Directory Services - Customers that allow legitimate Internet users access to their computers will loose this ability. This allows hackers to directly connect to a Windows based computer and gain total control over the OS.
% H( Z+ \' Q5 o$ B- H. j, A7 w. ^; a# B) Z% Y* |- u
TCP/UDP 1433-1434 (ms-sql)5 y2 l: B' h1 i, B& c
Microsoft SQL server - Customer running an SQL server will no long be able to have Internet user connect to their server. There are several worm viruses that exploit holes in SQL server. |
|