 鲜花( 87)  鸡蛋( 1)
|
之前发过一个帖子有关Telus, Shaw 的比较, / q; Z; ?! _2 P4 k
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。3 w! J) a' T5 z6 ?. ?7 x& N8 c& `
) J" [( v* g8 i" l: P) o
Does Telus block any ports? $ U$ U) \# E$ n# r
& j0 }* h0 R- Q1 s% J2 B/ M' TThe only packages with no blocked ports at this time are the Server packages.
9 N$ b2 T/ ?. t+ I1 E N$ D& J, i; `
; }! L, o3 z. Y+ b; ]' o) `The Blocked ports currently are:& s: \' `' W3 A1 T: g- l4 z
" S# m5 {$ m# `% U
TCP 21 (ftp)# l* F1 k$ _1 N
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.8 ?* |& j# Q. F' ^7 r% N f+ a
d2 g+ D; ~+ n Q5 pTCP 25 (smtp)
- N, a3 g! d+ f% _' N5 d dCustomers 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.- m7 o5 A$ O- n' g( V& \( b, u
$ Y( R; `3 H1 z. [/ u5 `TCP 80 (www)0 O* q U+ f( d2 x
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./ U$ e3 U* m. P' `5 o' E
! |8 M @: }) w1 I8 C7 MTCP 110 (pop3)
# i' J7 K$ M$ T/ k. W. C& Q8 RCustomers 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.! Q2 N) V$ I) X( _3 ^* k
1 y& A% x0 h0 A- G
TCP 6667 (ircd)
: _0 D2 _- r) E3 A7 z8 w. f. qCustomers running a IRC server (Internet Relay Chat) will no longer be able to have Internet users connect to the server.
# ~6 m4 E+ w2 o: s7 m- ^, P% ]$ ?0 I7 e8 o5 X
TCP/UDP 135-139 (dcom and netbios); A) j6 O f9 x
These ports are commonly exploited by worm viruses:, U' J3 ~7 }' [4 h
135 Windows RPC
8 \4 P: i' G1 Y7 g4 U s- Z2 t136 PROFILE Naming System (basically unused)* v: X! T, k" Q+ p/ P" \1 \1 n
137-139 Windows NetBios
: n+ [2 c5 Q8 I ]8 O# F( {" D7 U" I: F: j1 j
TCP/UDP 445 (ms-ds)
4 o2 I' Z4 J7 [; gMicrosoft 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.
, I, N; k* E% ]8 V" M) B" D2 U" n# g1 _' S8 ^1 j9 A
TCP/UDP 1433-1434 (ms-sql)
" v* [+ _' @ l5 h+ l4 NMicrosoft 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. |
|