 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， 1 j2 A" i3 X0 T& E& @$ G
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? ; b u2 B6 i! H5 G: A
/ p4 }! Z* z; A# t1 S6 oThe only packages with no blocked ports at this time are the Server packages. ) Z. d% I# ~ R; r4 a1 @
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The Blocked ports currently are:
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' T# t. g' b |9 C6 XTCP 21 (ftp)0 T* Y) |$ p4 E m8 b `
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.8 |2 q$ v& q0 k* s! l2 F
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TCP 25 (smtp)6 q2 ^1 f: g- A# s" 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.* |3 ~9 n3 G- O |
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TCP 80 (www); x5 h( Y( u3 M6 P& h+ |! ~
Customers 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)3 v4 O$ u, q- m6 \: S Q7 J9 }
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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3 s/ U* b& }; Y, E. [$ u& a2 XTCP 6667 (ircd): R8 H$ n$ ~3 p* V8 i
Customers running a IRC server (Internet Relay Chat) will no longer be able to have Internet users connect to the server.9 w% u2 L( B& O! h: t) z. s% l
# d7 G0 T ~' X4 N- ?3 t% G3 v. lTCP/UDP 135-139 (dcom and netbios)
' C. L2 H* Z3 C: O8 VThese ports are commonly exploited by worm viruses:+ W. ~8 ?& M, D& E% a
135 Windows RPC
4 r b! B* ^% I" K# m6 ]- d4 }136 PROFILE Naming System (basically unused) N, R+ B" t( C, O
137-139 Windows NetBios9 c3 r* q: } d
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TCP/UDP 445 (ms-ds)3 d. J! ?: A# t- 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.* O" g: U( E% Y9 ?1 y: h
4 \9 s( L- Z1 \9 wTCP/UDP 1433-1434 (ms-sql)
U/ o4 z0 G1 A+ v; O% n5 EMicrosoft 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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