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之前发过一个帖子有关Telus, Shaw 的比较, / b) u# m @6 i/ J+ \
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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& K2 |4 s8 Z2 k, ^: o, u+ eDoes Telus block any ports?
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The only packages with no blocked ports at this time are the Server packages.
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& z; Z, ]0 S6 ^! A/ |/ p& F) JThe Blocked ports currently are:5 N( h6 ?% C# V2 B5 r9 H
/ S, }7 T, V: w6 j- lTCP 21 (ftp)
6 C* F5 n* Q7 ?: g5 R- dCustomers 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.# r* g; q3 Q: g7 e. K: ^0 l4 \
: W- R2 Q" \; I# sTCP 25 (smtp)' R% H- T2 z8 H/ U; c- @- n
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.3 ?& {' J5 D' r" U- H
4 T& P: P" i2 h& bTCP 80 (www)
9 p+ E$ ~$ h5 s: e" t8 k" gCustomers 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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4 [( ~; ^" S4 g R5 |& L. C/ c4 ^TCP 110 (pop3)/ A4 f2 T# x7 ?% i7 z7 d0 z: A' \5 h
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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) N& A# Q0 p: B QTCP 6667 (ircd)
d) {7 Y* l6 [# s! T4 ^) RCustomers running a IRC server (Internet Relay Chat) will no longer be able to have Internet users connect to the server.
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0 @9 Z9 O8 h2 sTCP/UDP 135-139 (dcom and netbios)
: q1 ~' \ n4 R( ~: U+ cThese ports are commonly exploited by worm viruses:
6 [. ?8 `/ O7 n: s0 V135 Windows RPC
/ R" w2 w: Q! a136 PROFILE Naming System (basically unused)
, x( p5 D/ D6 _ K2 C137-139 Windows NetBios
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+ I% X7 @* y, k) w" MTCP/UDP 445 (ms-ds)( S- X, X2 B% `" r0 s
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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( `. j+ z) Z# D+ f* f8 u+ K. `TCP/UDP 1433-1434 (ms-sql)
" y" ]* r; ]7 i7 _& d( FMicrosoft 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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