 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，
/ I3 G! B! |: ]: l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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: D7 f0 n/ g0 J$ RDoes Telus block any ports?
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The only packages with no blocked ports at this time are the Server packages. ' f" }5 M- D0 \& I* v+ F
% m6 {2 G2 G8 x0 P* d) F4 vThe Blocked ports currently are:
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3 G1 w: P! a, v+ c% h; P$ k0 }TCP 21 (ftp)1 d8 O" p, }; l2 n) n2 a+ v
Customers 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./ T' S( p# t/ U& g S4 o
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TCP 25 (smtp)+ F5 c4 r% }* v2 y: P1 P
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.
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) m# H/ b, d# {/ \2 k {TCP 80 (www)
% W O3 P1 k2 oCustomers 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.6 z$ w# M/ b0 x- [4 p9 T
4 P9 u4 b Q. K& U, q$ STCP 110 (pop3). ^& x7 i$ p$ ~0 u
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.: W, X# `! Z% \2 T2 Y3 ]- H
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TCP 6667 (ircd)' n6 h+ A0 [0 i3 V8 f: O) v M/ X
Customers running a IRC server (Internet Relay Chat) will no longer be able to have Internet users connect to the server.
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6 h) B2 {9 T! v" hTCP/UDP 135-139 (dcom and netbios)
- n6 N3 `$ Y$ T1 s* Q0 o2 |# M$ `These ports are commonly exploited by worm viruses:$ U' ]% T+ {4 v6 @7 q
135 Windows RPC V+ K+ J% b- ]+ R0 \9 r4 E6 r- ^
136 PROFILE Naming System (basically unused)
( T+ N) x! i% J& _. Z; N4 e137-139 Windows NetBios4 N: K; k: L) z, o) H! h
4 r e: `% g5 ]TCP/UDP 445 (ms-ds)5 H- n M% x# s, {0 E
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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) G# O5 L9 d$ }% y1 n8 ^) e' QTCP/UDP 1433-1434 (ms-sql)* I( F# M& K: T7 U* u3 k& C& U2 C
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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