 鲜花( 87)  鸡蛋( 1)
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之前发过一个帖子有关Telus, Shaw 的比较,
$ D$ T8 O7 E' F7 {3 V$ j+ {. {8 W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。1 H; h2 S2 F8 V
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Does Telus block any ports?
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+ [! _! N6 {7 y9 O8 n* D! ]" A4 z$ aThe only packages with no blocked ports at this time are the Server packages.
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$ P- O. i9 E! W6 L4 EThe Blocked ports currently are:
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TCP 21 (ftp)
! I1 w4 u0 Z8 ^- ACustomers 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.- n; W7 V6 h; v
! {+ Z+ x" ?4 T" L0 ?: H# S3 `TCP 25 (smtp)
5 ?: q2 u2 | i( ~& t- I1 U" uCustomers 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.
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TCP 80 (www)
( a: h' k1 g- @% R5 jCustomers 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)
; r; f" E1 v; y7 b' H4 q% j. uCustomers 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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TCP 6667 (ircd)
9 c; Z m" d/ n6 _; }" JCustomers running a IRC server (Internet Relay Chat) will no longer be able to have Internet users connect to the server.: x) s0 B/ U( F6 ^: N
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TCP/UDP 135-139 (dcom and netbios)
! a4 Y" w' V/ P' g; N; `These ports are commonly exploited by worm viruses:* [3 n0 H! N, F% q0 F
135 Windows RPC% k$ m; i! l) k
136 PROFILE Naming System (basically unused)
_- l! ?) }6 A& K& U9 M# ?) {137-139 Windows NetBios
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TCP/UDP 445 (ms-ds)
* t3 I0 \, t8 i! U' t ]" w/ fMicrosoft 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), J0 [ l6 h; h# ~
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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