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之前发过一个帖子有关Telus, Shaw 的比较，
3 `: d$ V# I5 |- L( L: F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。# ]5 ]* _( U( O2 {, i& `) ?1 x
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Does Telus block any ports? . W$ I Y- y: `) u* G
, S4 o2 N. o) H1 _1 DThe only packages with no blocked ports at this time are the Server packages. " b( v( x- Z+ {+ B L. h4 M
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The Blocked ports currently are:
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TCP 21 (ftp)
1 y5 u2 h+ w5 V# y8 e' O/ l FCustomers 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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; \& T* |" d/ nTCP 25 (smtp)5 \ j2 N! {* X0 x" E' K9 `) m! O
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.6 e2 Z) [) \1 Y; C( ?, `8 c
+ z& }: W1 i; m0 x" k9 j( p- nTCP 80 (www)
2 a3 P, [2 `- T3 Z1 Q4 W8 \+ @! F/ p6 bCustomers 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.5 @# H/ n; z% d% B) \2 w8 V e
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TCP 110 (pop3)+ |5 Q0 W' c3 B Q* t" S2 o
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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2 q2 \" |7 O$ Y; C+ ~& U; kTCP 6667 (ircd); I* m" ]% k/ Y; g) r
Customers running a IRC server (Internet Relay Chat) will no longer be able to have Internet users connect to the server.7 g5 U. [, ?6 B2 N
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TCP/UDP 135-139 (dcom and netbios)
4 f: X( n. \4 P1 W1 ~) X* r. g# N; V/ dThese ports are commonly exploited by worm viruses:
3 I. Y7 ?: C' c; f4 e: m135 Windows RPC
' R7 ? L; X1 L& b0 `4 _136 PROFILE Naming System (basically unused)* F. s" W- a# n; `
137-139 Windows NetBios
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TCP/UDP 445 (ms-ds)0 R3 { r, p6 ^8 D! l
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.
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TCP/UDP 1433-1434 (ms-sql)* I n3 p. S+ ~6 j
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. |
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狗仔卡
发表于 2009-11-7 17:58
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