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之前发过一个帖子有关Telus, Shaw 的比较, % \ C3 g9 V0 U" E. f) T
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。
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Does Telus block any ports? & y$ r5 v3 Q \5 w4 v/ r* ]% l
* Z3 `, k" J) T8 c/ CThe only packages with no blocked ports at this time are the Server packages.
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, l$ Y6 D) o* l4 fThe Blocked ports currently are:6 K9 r" A8 L! W: \( E2 Z8 r y- }
" q& G2 ]8 K% |4 `TCP 21 (ftp)
/ Y, N$ Z5 t9 T1 I8 G, OCustomers 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.
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3 b% E ]( B |) |" dTCP 25 (smtp)
. T' Z4 I9 u) W; ]7 n J0 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.. }$ X* ?% N, J b4 r
" c$ F! }2 D6 G5 y0 J* g w# `TCP 80 (www)
/ H# Z/ j5 q c) A7 P5 e/ e& VCustomers 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.
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TCP 110 (pop3)
7 E J5 ^9 ]9 X3 \& X4 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.
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( C J2 ~/ M6 ]& U8 y: S3 ?TCP 6667 (ircd)
9 u8 W+ y/ d5 S# ]& |( w8 a5 sCustomers running a IRC server (Internet Relay Chat) will no longer be able to have Internet users connect to the server.
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& N7 y4 c' \% D0 G7 W# o# }" R' pTCP/UDP 135-139 (dcom and netbios)
; B. b6 S6 f/ H- F1 _9 s, e5 fThese ports are commonly exploited by worm viruses:$ w1 ?- V4 |, G
135 Windows RPC
6 G' a. }# X& A) M# W: O& q1 |136 PROFILE Naming System (basically unused)
# {6 U; I% |4 u: p* P137-139 Windows NetBios2 M- u0 r& x" a
! d( t+ r9 D2 M, J+ ZTCP/UDP 445 (ms-ds)
: v' r' q) k7 p$ j m$ V/ rMicrosoft 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.8 S1 h" y/ D" G) s/ G
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TCP/UDP 1433-1434 (ms-sql)
+ N) _; z( Q( B# [- 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. |
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