 鲜花( 87)  鸡蛋( 1)
|
之前发过一个帖子有关Telus, Shaw 的比较,
5 X M% S( z& r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。
7 D2 V$ J+ m& T7 O( q6 U; ]
7 F* A0 l' X( \9 f) F) f/ ZDoes Telus block any ports? 8 q- ]7 o8 b( i% j
4 d. x b; f" a, t8 k; M& c1 B
The only packages with no blocked ports at this time are the Server packages.
l9 k) I8 j0 G+ D' l3 F$ p+ B- k3 w' a7 v- j
The Blocked ports currently are: v% i3 p, t/ X& H
5 H5 R* E2 h& _" e. U# m! f/ MTCP 21 (ftp)
8 P5 C: L3 R. JCustomers 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.; `" h* G2 T. n* R0 `+ h) k" g
: S2 \ a& ?9 }) Y* `TCP 25 (smtp)8 ~: F6 r, k+ k5 o3 a9 z
Customers 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.
5 k' t5 a4 t% ]2 c- X: Q& I/ h# E: T4 a
TCP 80 (www)
/ V# B# Q' w/ c! q! D% y0 ?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.
& s) v* D. M: B
& x& |7 H) p$ o8 Z7 h# LTCP 110 (pop3)' G. _! k2 i/ w4 C N/ b
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.2 P+ ^0 G1 ~! j- t0 q
, C& D1 \; j5 R# e& i; R3 V' y
TCP 6667 (ircd)' B0 u4 z* x% `0 r
Customers running a IRC server (Internet Relay Chat) will no longer be able to have Internet users connect to the server.
7 {$ T9 T$ N9 Y" d8 c2 _+ G8 U4 K) L. N' q3 B. v8 K3 U+ G
TCP/UDP 135-139 (dcom and netbios)' _6 \( @& Y; z5 z
These ports are commonly exploited by worm viruses:" H! M k. o9 t7 f) x7 o( Y3 @
135 Windows RPC
' @9 ?" [9 \, M4 V# g; d, l5 j136 PROFILE Naming System (basically unused)
p" K# A; m9 r% p$ \" _4 ^1 X137-139 Windows NetBios
( w2 M0 G) p2 n1 v) }8 h. d. d+ Y8 E3 l
TCP/UDP 445 (ms-ds)
" B( ^. x: F" K) eMicrosoft 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.
( C9 S7 a4 x7 p0 ^) D
. a7 K# H# e$ XTCP/UDP 1433-1434 (ms-sql)
- L' s# L0 }$ `2 j$ jMicrosoft 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. |
|